Re: Dial up usinng Asyn interface

[JEK]

Tan,
 
    You need to run the command < 
show line > this will give you an output of all
of the < vty's / tty's / con >.What you 
need to do is then setup an Async interface
with the coorresponding tty# of the AUX 
Port.Then you need to setup a < dialer-rotary
group X > which 
you can then setup to correspond to to the < interface dialer X 
>.Then
you can setup your << pap / chap 
>><< encapsulation >><< dialer string >>And 
what
ever else that is needed.Your then good to 
go.
 
Example
 
show line
aux tty1
 
config mode
interface aysnc 1
 encap ppp
 dialer-rotary group 1
 
interface dialer 1
ip address X.x.x.x X.x.x.x
 dialer string XXX
 encap ppp
 ppp auth chap
 
Joe
Senior Network / Systems Engineer
CCNA
 
"Tan Choh oon" <[EMAIL PROTECTED]> wrote in 
message 002901bfd42f$9ab3f6a0$[EMAIL PROTECTED]">news:002901bfd42f$9ab3f6a0$[EMAIL PROTECTED]...

  Hi,
   
  I had 2501 router, 1 Ethernet , 2 Syn port and 1 
  Aux port.
  I like to coonect the 56k dial up modem to serial 
  0 , and configure it to DDR to ISP.
  My question is how do i configure the serial 0 ( 
  syn interface)  to dial out ?
   
  As far as i knew only asyn serial, Aux port and 
  syn/async serial is capable to do dial up. 
  Can Sync serial port do dial out ?? If can please 
  give sample config.
   
  Thanks.
   
  C.K.Tan

Re: #!$& lab setup problems

[JEK]

Brian,

If you are using ADTRAN setup one of the CSU's to be the Master for
timing/clocking and then let the other CSU get the timing/clocking from the
Master CSU.

Joe
Senior Network/Systems Engineer
CCNA


"Brian Lodwick" <[EMAIL PROTECTED]> wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> I am having a rough time getting my home lab up and running, and would
love
> to get some reccomendations on what to try next from the group. I feel
like
> I have tried everything, but obviously I haven't, because it isn't
working.
> Anyone care to help out?
>
> CSU/DSU#1
> TXD=solid green light
> RXD=flashing green light
> RTS=solid green light
> CTS=solid green light
> DCD=flashing green light
> DTR=solid green light
> OOS=flashing red light
> LOS=flashing red light
> ERR=flashing red light
> TST=nothing
>
> CSU/DSU#2
> DSR=nothing
> RTS=nothing
> CTS=nothing
> DCD=solid green light
> TXD=nothing
> RXD=solid green light
> TST=nothing
> NIS=nothing
>
>   CSU/DSU#1 is set for internal clocking and #2 is set for external
> clocking. These are both set for synchronous 56k. The pinout noted in both
> instruction booklets shows pins 1 and 2 are transmit and pins 7 and 8 are
> receive and 3-6 are not used. I have 1 crossed to 8 and 2 crossed to 7.
 I
> also tried crossing 1 to 7 and 2 to 8 got the same thing).
> CSU/DSU#1 is an ADC Kentrox D-serv 56, and CSU/DSU#2 is a 56K ROUTERmate
> made by Cray Communications.
>   If I turn off #2 the flashing lights stop flashing and go dark, and the
> LOS goes to a solid red light.
>
>   I have a 2501 connected to CSU/DSU#1 and a 2502 connected to CSU/DSU#2
>
>   I just can't figure out what I am doing wrong anyone have any
suggestions?
> I would be more than happy to give information I am not sure what else
would
> be pertinent. Thank you in advance.
> >>>Brian
> 
> Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com
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RE: collision on cut-through switch

[Atif Awan]

Keep your cable plant within the standards. Also make sure the device
attached to a swithc port and the port are set to the same duplex settings
as well as the same speed. If not then you wll see Late collisions on the
devices that is operating at the lower rate and CRCs on the device operating
at the higher rate.

Regards
Atif Awan

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
ANIL.YADAV
Sent: Thursday, June 22, 2000 9:27 AM
To: Heskett, Tony
Cc: [EMAIL PROTECTED]
Subject: RE: collision on cut-through switch





How to avoid late collisions ?

thanks
Anil


On Tue, 20 Jun 2000, Heskett, Tony wrote:

>
> Not a white paper, but let's see whether *I* understand
> how it's supposed to work 
>
> Cut-thru waits for the dest addy, then starts forwarding.
>
> Frag-free waits for 64bytes, then starts forwarding.
>
> Store'n'forward waits for the whole packet and CRC's it,
> so will only forward truly valid (tm) packets.
>
> Sooo...  cut-thru will forward runts, and you'll get
> those if there's a collision after the dest addy but
> within the first 64.
>
> Frag-free will /not/ forward runts, so will protect
> you from collisions that really should have happened.
> It won't protect you from 'late collisions' (that
> shouldn't have happened), but you're gonna fix your
> cable plant to remedy those (aren't you? :-)
>
> Or am I lying ?   :-)
>
> (big quote for context, below; sorry)
>
> Tone
>
> > From: Barry Hofland [mailto:[EMAIL PROTECTED]]
>
> > Hi, Priscilla,
> >
> > I think the best way to find this out is to just get yourself
> > a network
> > tester to connect between the transmitting host on port 1 and
> > the CISCO box.
> > ( like a FLUKE ) You will be able to see ( or not ) the JAMS
> > on port 1. When
> > you connect the host in that segment only and there's a jam during a
> > collision on port 2 you know enough...
> >
> > In my humble opinion you are right, but that's male intuition ;-)
>
> > Priscilla Oppenheimer <[EMAIL PROTECTED]> wrote in message
> > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
>
> > > I got into a discussion with a knowledgeable Sniffer
> > instructor recently.
> > > When he teaches cut-through-switching theory, he warns his
> > students that a
> > > cut-through switch does not really isolate collision
> > domains. Consider this example:
> > >
> > > * The switch is receiving a frame from port 1 destined for
> > a station out
> > > port 2.
> > > * The switch recognizes the destination address and starts
> > forwarding the
> > > frame to port 2 ASAP.
> > > * There is a collision on port 2. (It's a shared and/or half-duplex
> > Ethernet.)
> > >
> > > According to the instructor, the Switch sends a jam signal
> > back to port 1
> > > to let the initial sender know that the frame experienced a
> > collision.
> > This
> > > allows the sender to retransmit.
> > >
> > > If you read some of the books on switching, you would think
> > that this is
> > > true. The books make it sound like the frame is passing
> > through the switch
> > > and disappearing out the destination port as soon as the destination
> > > address is recognized.
> > >
> > > I don't think the Sniffer instructor's conclusion is true,
> > however. I
> > > believe that a Cisco cut-through switch buffers the frame
> > and hence has
> > the
> > > ability to retransmit. There is no requirement to send a jam to the
> > > original sender because port 2 in our example retransmits
> > after sensing
> > the
> > > collision.
> > >
> > > I believe that Cisco switches store frames, even when doing
> > cut-through,
> > > whereas the instructor assumed that the frame has passed
> > through and out
> > > the port and is no longer available for retransmission by
> > the switch.
> > >
> > > Cisco positions cut-through as reducing delay, not reducing
> > the need for
> > > buffering, so I'm contending that I'm right.
> > >
> > > Who do you think is right? Can you point me to any white
> > papers that would
> > > prove who is right?
>
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Re: AUX - Dial up

[Tan Choh Koon]

Hi,

Thanks all of you for input. I had found the problems.
The modems I had (US robotic & Motorola Bit surf ) it had been some
configuration on it.
After I used terminal and issued the At&F ( factory default ) and save it it
works, the router is detected my both units of modem.

C.K.Tan
CCNP,CCDA


- Original Message -
From: Kenny Sallee <[EMAIL PROTECTED]>
To: Feliz, Edgar <[EMAIL PROTECTED]>; Tan Choh Koon
<[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>
Sent: Wednesday, June 28, 2000 1:42 PM
Subject: Re: AUX - Dial up


> There are certain dip switch settings required on the USR.  I can't
remember
> them but they can be found on CCO.
>
> Kenny
>
> - Original Message -
> From: "Feliz, Edgar" <[EMAIL PROTECTED]>
> To: "Tan Choh Koon" <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>
> Sent: Tuesday, June 27, 2000 9:30 PM
> Subject: RE: AUX - Dial up
>
>
> > Set a speed. "speed 38400". Also configure "transport input all" . You
can
> > also try configuring the exact modem type rather then auto/discovery
> >
> > EF
> >
> > -Original Message-
> > From: Tan Choh Koon [mailto:[EMAIL PROTECTED]]
> > Sent: Tuesday, June 27, 2000 11:57 PM
> > To: [EMAIL PROTECTED]
> > Subject: AUX - Dial up
> >
> >
> > Hi,
> >
> > I had connected the US Robotic Sportster modem to the 1720 Aux port, but
> > router cannot detect the modem. I had used correct cable as what manual
> > shown.
> > What I am not aware off ?
> >
> >
> >
> > line con 0
> >  transport input none
> > line aux 0
> >  autobaud
> >  modem InOut
> >  modem autoconfigure discovery
> >  stopbits 1
> >  flowcontrol hardware
> > line vty 0 4
> >
> > Debug confmodem :
> > 0:03:59: TTY5: detection speed (115200) response --
> > 00:04:05: TTY5: detection speed (57600) response --
> > 00:04:10: TTY5: detection speed (38400) response --
> > 00:04:15: TTY5: detection speed (19200) response --
> > 00:04:21: TTY5: detection speed (9600) response --
> > 00:04:26: TTY5: detection speed (2400) response --
> > 00:04:32: TTY5: detection speed (1200) response --
> > 00:04:37: TTY5: detection speed (300) response --
> > 00:04:37: TTY5: No modem found
> >
> > ___
> > UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html
> > FAQ, list archives, and subscription info: http://www.groupstudy.com
> > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
> >
>

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Route Summarisation, once again!

[Ishtiaque Mahbub]

Hello Group!

Could someone be kind enough to explain a dilemma that I have been facing 
with route summarisation? In Todd's book I found the following question:

How the following networks should be summarised?
172.16.1.0/24
172.16.2.0/24
172.16.3.0/24

a) They cant be summarised
b) 172.16.1.0/24 and 172.16.2.0/23
c) 172.16.1.0/22
d) 172.16.0.0

Well I chose C.

Here is my explanation:
Considering third octet Binary format of 1:  0001
Considering third octet Binary format of 2:  0010
Considering third octet Binary format of 3:  0011
So the highest number of similar bits for this octet is 6
The total number of bits similar for the networks: 8+8+6=22
That summarises the network to 172.16.1.0/22

But the answer says B with the explanation: Networks must share the same 
high-order bits. Look at the binary values to understand more clearly.

What am I missing?

Regards,

Ishtiaque


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Re: AUX - Dial up

[Kenny Sallee]

There are certain dip switch settings required on the USR.  I can't remember
them but they can be found on CCO.

Kenny

- Original Message -
From: "Feliz, Edgar" <[EMAIL PROTECTED]>
To: "Tan Choh Koon" <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>
Sent: Tuesday, June 27, 2000 9:30 PM
Subject: RE: AUX - Dial up


> Set a speed. "speed 38400". Also configure "transport input all" . You can
> also try configuring the exact modem type rather then auto/discovery
>
> EF
>
> -Original Message-
> From: Tan Choh Koon [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, June 27, 2000 11:57 PM
> To: [EMAIL PROTECTED]
> Subject: AUX - Dial up
>
>
> Hi,
>
> I had connected the US Robotic Sportster modem to the 1720 Aux port, but
> router cannot detect the modem. I had used correct cable as what manual
> shown.
> What I am not aware off ?
>
>
>
> line con 0
>  transport input none
> line aux 0
>  autobaud
>  modem InOut
>  modem autoconfigure discovery
>  stopbits 1
>  flowcontrol hardware
> line vty 0 4
>
> Debug confmodem :
> 0:03:59: TTY5: detection speed (115200) response --
> 00:04:05: TTY5: detection speed (57600) response --
> 00:04:10: TTY5: detection speed (38400) response --
> 00:04:15: TTY5: detection speed (19200) response --
> 00:04:21: TTY5: detection speed (9600) response --
> 00:04:26: TTY5: detection speed (2400) response --
> 00:04:32: TTY5: detection speed (1200) response --
> 00:04:37: TTY5: detection speed (300) response --
> 00:04:37: TTY5: No modem found
>
> ___
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Re: Which access-list increase load the most?

[Kenny Sallee]

That's a good point.  According to some Cisco guys here at networkers,
TurboACLs are even less CP intensive than static routes to null0cool

Kenny

- Original Message -
From: "Erick" <[EMAIL PROTECTED]>
To: "Robert Cabeca" <[EMAIL PROTECTED]>;
<[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>
Sent: Tuesday, June 27, 2000 6:46 PM
Subject: Re: Which access-list increase load the most?


>
> Another thing, you can use the newer TurboACL
> (compiled  ACLs) on higher platforms.
>
> access-list compiled
>
>
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120
limit/120s/120s6/turboacl.htm
>
> --- Robert Cabeca <[EMAIL PROTECTED]> wrote:
> > Just want to say that this was a great and useful
> > response!!
> > Rob
> >
> > -Original Message-
> > From: [EMAIL PROTECTED]
> > <[EMAIL PROTECTED]>
> > To: [EMAIL PROTECTED] <[EMAIL PROTECTED]>
> > Date: Tuesday, June 27, 2000 19:51
> > Subject: Which access-list increase load the most?
> >
> >
> > >
> > >
> > >
> > >It depends (well, what did you expect??)
> > >As a general rule, you're better off putting the
> > access list on the
> > outgoing
> > >interface.  That way you don't waste bandwidth by
> > transmitting traffic
> > you're
> > >just going to throw away anyway.
> > >BUT, your *first* priority is to make sure the
> > access list does what you
> > want.
> > >To do this, you may need to use an incoming access
> > list instead.
> > >
> > >Example...
> > >
> > >rtrA  rtrB
> > >
> > >Let's say you want to prevent telnet traffic from
> > rtrA to rtrB.
> > >Assume for now that the link between the routers is
> > a serial link (int S0
> > on
> > >both routers).
> > >You could put an outgoing access list on S0 on
> > rtrA:
> > >rtrA:
> > >access-list 101 deny tcp any any eq 23
> > >access-list 101 permit ip any any
> > >int s 0
> > >access-class 101 out
> > >
> > >This will work fine (assuming my access list syntax
> > is correct which I am
> > making
> > >no guarantees about - I haven't checked it).  You
> > could put the same access
> > list
> > >on rtrB as an incoming access list instead, and it
> > would have the same
> > effect,
> > >but your telnet traffic would cross the serial link
> > before being dropped -
> > >generally not very efficient.
> > >
> > >OK, what if it's not a serial link, but an
> > ethernet?  Time to throw another
> > >router into the mix...
> > >
> > >rtrA  rtrB
> > > |
> > >rtrC
> > >
> > >Now, putting that same outgoing access list on rtrA
> > has a different effect
> > to
> > >putting it as an incoming access list on rtrB.  If
> > you put the outgoing
> > access
> > >list on rtrA, you will not be able to telnet from
> > rtrA to rtrB *or to
> > rtrC*.  If
> > >you put it as an incoming access list on rtrB, you
> > will not be able to
> > telnet
> > >from rtrA to rtrB but you will be able to telnet
> > from rtrA to rtrC.
> > >In this case, where should you put the access list?
> >  That depends
> > completely on
> > >what you are trying to achieve with your access
> > list.
> > >
> > >Regardless of where you are putting your access
> > list, try to put the lines
> > that
> > >will get the most hits near the top (again, make
> > sure you don't change the
> > >meaning of the access list if you change the order
> > of statements).  The
> > lines of
> > >an access list are checked in order, and once a
> > match for a packet is
> > found, the
> > >rest of the list isn't checked - so if most of your
> > packets match the first
> > >line, rather than the last, your router will spend
> > less time checking
> > access
> > >lists.
> > >
> > >Here endeth the chapter :-)
> > >
> > >JMcL
> > >
> > >-- Forwarded by Jenny
> > Mcleod/NSO/CSDA on 27/06/2000
> > 16:28
> > >---
> > >
> > >
> > >"K.FUJIWARA" <[EMAIL PROTECTED]> on 26/06/2000
> > 15:59:31
> > >
> > >Please respond to "K.FUJIWARA"
> > <[EMAIL PROTECTED]>
> > >
> > >
> > >To:   "[EMAIL PROTECTED]" <[EMAIL PROTECTED]>
> > >cc:(bcc: JENNY MCLEOD/NSO/CSDA)
> > >Subject:  Which access-list increase load the most?
> > >
> > >
> > >
> > >Hi, all.
> > >
> > >Though the null interface is the best solution for
> > load in the ruter
> > >CPU, which
> > >extended / standard access-list is the best to
> > reduce the load?
> > >Extended one's result may be depends on where it
> > will be put or the
> > >case, so where
> > >should it be configured? Destination?
> > >If you have some good examples, please show me.
> > >
> > >And then, do you know good tools or utility to
> > monitor the routers
> > >performance on
> > >CPU or RAM in real time?
> > >
> > >Kazuyo Fujiwara
> > >MCSE/CCNA
> > >Japan Kobe
> > >
> > >
> > >
> > >___
> > >UPDATED Posting Guidelines:
> > http://www.groupstudy.com/list/guide.html
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> > http://www.groupstudy.com
> > >Report misconduct and Nondisclosure violations to
> > [EMAIL PROTECTED]
> > >
> > >

Re: CCNA logo

[Douglas James Howe]

I did, but I had to call them...then they sent me an agreement...then I had
to set up an account at CCO...before I could download the logo.


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Re: VPN & Hierarchical Design questions

[JEK]

John,

( 1 )If your wanting to connect all of your remotes that will not
connect up to the same
logical lan; the host will need a connection to the internet and the remotes
will need the
same.You will then need to setup Tunnel Interfaces which are software
interfaces and
then setup your own certain criteria for your < tunnel mode / tunnel source
/ tunnel destination >
and then an IP Address on both ends that are in the same subnetThen you
can setup
static routes on the routers to forward information that they need on the
host LAN to the
IP Address if the Tunnel Interface on the host router.Then you can setup
your gateway of
last resort pointing out to the Internets IP Address...

PS: You don't even have to setup a routing protocol just a routed
protocol..Keep in mind
that all of your static routes would have to be setup properly..

( 2 )If your talking about the three Cisco Layers.Example would be

7200 Core

 4000366036403620 Distrbution

7008001000160017002500 Access


Joe
Senior Systems/Network Engineer
CCNA

"JohnMail" <[EMAIL PROTECTED]> wrote in message
006c01bfdb44$4b0ff7e0$[EMAIL PROTECTED]">news:006c01bfdb44$4b0ff7e0$[EMAIL PROTECTED]...
> Folks:
>
> I am preparing for the CCDA and plan to write same before 31 July, 2000. I
> have two questions.  The first one revolves around VPN.  The other
question
> deals with CISCO's Hierarchical Network Design concepts.
>
> (1)  Assume that I have six simple LANs - one HQ  LAN and 5 Branch LANs.
> Assume also that each LAN consists of one Server and 4 workstations.  If I
> want to link these simple networks using VPN;  what king of Hardware and
> Software would I have to buy. I would also like to compare and contrast
> Microsoft's VPN (which I believe is built into Win2000) and CISCO's VPN.
> Thanks in advance guys.
>
> (2)   In this second scenario, I want to connect a router at each LAN site
> and make use of CISCO'S hierarchical network design principles.  Can
anyone
> explain or draw a simple diagram of what the network structure would look
> like at the CORE, DISTRIBUTION, and ACCESS layers.
>
>
>
> Thanks,
> John
>
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L2TF on IPSec CA, from W2K to IOS

[Asbjorn Hojmark]

Has anyone successfully made Windows 2000 clients connect to
IOS routers with L2TP on IPSec with a CA? We're trying to make
this work to a couple of 7100s without much luck.

The W2K clients connect just fine to a W2K server and two
routers also connect fine to each other, but the Windows
machines cannot connect to the routers when using a CA. (When
run with pre-shared keys, everything is fine and dandy).

The Windows machines were configured according to the paper
"L2TP and IPSec - Cisco IOS and Microsoft Windows 2000" by
Natalie Timms, Cisco.

We have tried 12.0(7)T, 12.1(2) and 12.1(2)T. The first two
just doesn't work, the last one crashes the router when we
attempt to connect from the Windows machine.

Any thoughts are welcome,

-A
--
Heroes: Vint Cerf & Bob Kahn, Leonard Kleinrock, Robert Metcalfe
Links : http://www.hojmark.org/networking/


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No Subject

[Douglas Baltazar de Queiroz]

Dear Members,

I've just started studying for CCNA, but I'm not sure if it' worthy taking version 1.0.
Do I have to take CCNA 2.0 instead?
Is there any problem for taking CCNP 2.0 holding CCNA 1.0?

Thanks,

Douglas

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RE: collision on cut-through switch

[ANIL.YADAV]

How to avoid late collisions ? 

thanks 
Anil


On Tue, 20 Jun 2000, Heskett, Tony wrote:

> 
> Not a white paper, but let's see whether *I* understand
> how it's supposed to work 
> 
> Cut-thru waits for the dest addy, then starts forwarding.
> 
> Frag-free waits for 64bytes, then starts forwarding.
> 
> Store'n'forward waits for the whole packet and CRC's it,
> so will only forward truly valid (tm) packets.
> 
> Sooo...  cut-thru will forward runts, and you'll get
> those if there's a collision after the dest addy but
> within the first 64.
> 
> Frag-free will /not/ forward runts, so will protect
> you from collisions that really should have happened.
> It won't protect you from 'late collisions' (that
> shouldn't have happened), but you're gonna fix your
> cable plant to remedy those (aren't you? :-)
> 
> Or am I lying ?   :-)
> 
> (big quote for context, below; sorry)
> 
> Tone
> 
> > From: Barry Hofland [mailto:[EMAIL PROTECTED]]
> 
> > Hi, Priscilla,
> > 
> > I think the best way to find this out is to just get yourself 
> > a network
> > tester to connect between the transmitting host on port 1 and 
> > the CISCO box.
> > ( like a FLUKE ) You will be able to see ( or not ) the JAMS 
> > on port 1. When
> > you connect the host in that segment only and there's a jam during a
> > collision on port 2 you know enough...
> > 
> > In my humble opinion you are right, but that's male intuition ;-)
> 
> > Priscilla Oppenheimer <[EMAIL PROTECTED]> wrote in message
> > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> 
> > > I got into a discussion with a knowledgeable Sniffer 
> > instructor recently.
> > > When he teaches cut-through-switching theory, he warns his 
> > students that a
> > > cut-through switch does not really isolate collision 
> > domains. Consider this example:
> > >
> > > * The switch is receiving a frame from port 1 destined for 
> > a station out
> > > port 2.
> > > * The switch recognizes the destination address and starts 
> > forwarding the
> > > frame to port 2 ASAP.
> > > * There is a collision on port 2. (It's a shared and/or half-duplex
> > Ethernet.)
> > >
> > > According to the instructor, the Switch sends a jam signal 
> > back to port 1
> > > to let the initial sender know that the frame experienced a 
> > collision.
> > This
> > > allows the sender to retransmit.
> > >
> > > If you read some of the books on switching, you would think 
> > that this is
> > > true. The books make it sound like the frame is passing 
> > through the switch
> > > and disappearing out the destination port as soon as the destination
> > > address is recognized.
> > >
> > > I don't think the Sniffer instructor's conclusion is true, 
> > however. I
> > > believe that a Cisco cut-through switch buffers the frame 
> > and hence has
> > the
> > > ability to retransmit. There is no requirement to send a jam to the
> > > original sender because port 2 in our example retransmits 
> > after sensing
> > the
> > > collision.
> > >
> > > I believe that Cisco switches store frames, even when doing 
> > cut-through,
> > > whereas the instructor assumed that the frame has passed 
> > through and out
> > > the port and is no longer available for retransmission by 
> > the switch.
> > >
> > > Cisco positions cut-through as reducing delay, not reducing 
> > the need for
> > > buffering, so I'm contending that I'm right.
> > >
> > > Who do you think is right? Can you point me to any white 
> > papers that would
> > > prove who is right?
> 
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Re: 100Mbs to 10Mbs

[JEK]

Collin,

Is this a FastEth0 Interface or a Eth0 Interface.If your using one
of the
onboard Ethernet Interfaces they are 10Mb half-duplex and 20Mb
full-duplex
So this is actually depending on what your using..You can either use the
following

speed 10
speed 20
speed 100 fas eth
speed 200 fas eth

duplex full
duplex half

Joe
Senior Network/Systems Engineer
CCNA

Luan Kim <[EMAIL PROTECTED]> wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> collin,
> try this:
>
> conf t
> int e0
> speed 10
> end
>
>
> 
> Luan T. Kim, MCSE, CCNA*
> Systems/Network Infrastructure Engineer*
> MP3.COM, INC.  http://www.mp3.com  *
> Phone: 858-623-7341Cell:  858-382-3055 *
> Fax:   858-623-7400Email: [EMAIL PROTECTED] *
> 
>
>
> On Wed, 21 Jun 2000, Collin Clark wrote:
>
> > Is there a way to change E0 on a 2600 router from 100Mbs to 10Mbs?
> >
> >
> > ___
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ISDN Dial

[fsedano]

Hello friends.

I'm triying to setup a permanent ISDN connection (Not dial on demand) to a
remote host which has a pool of IP addresses. I don't know anything about
the remote addresses.

Which kind of configuration can I try?

Thanks in advance.
Francisco.


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Re: ISDN Dialer Profile Not Working

[Kevin Wigle]

Without analyzing your config deeply, the "spid1 NOT valid" and "spid2 NOT
valid" are pretty good clues that something's not right with your spids.

I'm surprised that any config worked, but since your configs here are
sanitized, can't tell if the spids in the working config are the same as in
the dialer-profile config.

Kevin Wigle
CCNP, CCDA

- Original Message -
From: "Kari Nurdin" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, 27 June, 2000 23:52
Subject: ISDN Dialer Profile Not Working


> Hi Everyone,
>
> First time placing a post, I hope someday to share and
> contribute to the group like all of you.
>
> Recently, I had a ISDN install, the central site router consisted of two
> BRI interfaces.  Each BRI to be connected to a remote site.  My first task
> was to get BRI0 up and running to the remote location.  BRI1 to be done at
a
> later date.
>
> I configured the router using dialer profiles, however, I was not able to
> get it to work.  When doing the "show isdn status" , layer 2 status
echoed:
>
> Layer 2 Status:
> TEI = 67, Ces = 1, SAPI = 0, State = MULTIPLE_FRAME_ESTABLISHED
> TEI = 69, Ces = 2, SAPI = 0, State = MULTIPLE_FRAME_ESTABLISHED
> TEI 67, ces = 1, state = 8(established)
> spid1 configured, spid1 sent, spid1 NOT valid
> TEI 69, ces = 2, state = 8(established)
> spid2 configured, spid2 sent, spid2 NOT valid
>
> As normal, I had to get this link up and functioning ASAP.  After looking
> over the configuration (the pressure didn't help), I decided to configure
> the router not using dialer profiles.  Using this configuration(NO dialer
> profiles) I was able to get the ISDN connection to the remote site up and
> running instantly.
>
> I am stumped as to why my dialer profile configuration did not work.
>
> I would like to use dialer profile in the future and I really would like
to
> find out whats wrong with my configuration (with the groups help).  The
> following is the dialer profile configuration followed by my currently
> working configuration.  Does anyone one see something I don't.  Thanks in
> Advance.
>
> DIALER GROUP CONFIG (not able to get working)
> Central_H #show run
> Building configuration...
>
> Current configuration:
> !
> version 12.0
> service timestamps debug uptime
> service timestamps log uptime
> no service password-encryption
> !
> hostname Central_H
> !
> enable secret 5 $1$64Kr$yjggfj7dlti
> !
> username Remote_R1 password 0 password
> username Central_H  password 0 password
> username Remote_R2  password 0 password
> !
> !
> !
> !
> memory-size iomem 25
> ip subnet-zero
> no ip routing
> no ip domain-lookup
> !
> isdn switch-type basic-ni
> isdn voice-call-failure 0
> !
> !
> !
> interface BRI0
> description Remote_R1
> no ip address
> no ip directed-broadcast
> encapsulation ppp
> no ip route-cache
> no ip mroute-cache
> dialer pool-member 1 max-link 2
> isdn switch-type basic-ni
> isdn spid1 55512300 123
> isdn spid2 555123111200 1231112
> no peer default ip address
> ppp multilink
> !
> interface BRI1
> description Remote_R2
> no ip address
> no ip directed-broadcast
> encapsulation ppp
> no ip route-cache
> no ip mroute-cache
> dialer pool-member 2 max-link 2
> isdn switch-type basic-ni
> isdn spid1 55512300 123
> isdn spid2 555123111200 1231112
> no peer default ip address
> ppp multilink
> !
> interface FastEthernet0
> description Central_H
> ip address 10.10.10.238 255.255.255.0
> no ip directed-broadcast
> no ip route-cache
> no ip mroute-cache
> half-duplex
> bridge-group 1
> !
> interface Dialer1
> description Remote_R1
> ip address 10.10.10.238 255.255.255.0
> no ip directed-broadcast
> encapsulation ppp
> dialer remote-name Remote_R1
> dialer pool 1
> dialer idle-timeout 2147483
> dialer load-threshold 2 outbound
> dialer-group 1
> pulse-time 0
> ppp authentication chap
> ppp multilink
> bridge-group 1
> !
> interface Dialer2
> description Remote_R2
> ip address 10.10.10.238 255.255.255.0
> no ip directed-broadcast
> encapsulation ppp
> dialer remote-name Remote_R2
> dialer pool 2
> dialer idle-timeout 2147483
> dialer string 333
> dialer string 3331112
> dialer load-threshold 2 outbound
> dialer-group 2
> pulse-time 0
> ppp authentication chap
> ppp multilink
> bridge-group 1
> !
> no ip classless
> ip http server
> !
> logging 10.10.10.10
> access-list 1 permit 10.0.0.0 0.255.255.255
> dialer-list 1 protocol bridge permit
> bridge 1 protocol ieee
> bridge 1 priority 1
> banner motd ^CCtod"Unauthorized Use is Prohibited"^C
> !
> line con 0
> password root
> login
> transport input none
> ip netmask-format decimal
> line aux 0
> line vty 0 4
> access-class 1 in
> password root
> login
> ip netmask-format decimal
> !
> end
>
>
> CURRENTLY WORKING ISDN CONFIG (non dialer profile)
> Central_H #show run
> Building configuration...
>
> Current configuration:
> !
> version 12.0
> service timestamps debug uptime
> service timestamps log uptime
>

RE: AUX - Dial up

[Feliz, Edgar]

Set a speed. "speed 38400". Also configure "transport input all" . You can
also try configuring the exact modem type rather then auto/discovery
 
EF

-Original Message-
From: Tan Choh Koon [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, June 27, 2000 11:57 PM
To: [EMAIL PROTECTED]
Subject: AUX - Dial up


Hi,
 
I had connected the US Robotic Sportster modem to the 1720 Aux port, but
router cannot detect the modem. I had used correct cable as what manual
shown.
What I am not aware off ? 
 
 
 
line con 0
 transport input none
line aux 0
 autobaud
 modem InOut
 modem autoconfigure discovery
 stopbits 1
 flowcontrol hardware
line vty 0 4
 
Debug confmodem :
0:03:59: TTY5: detection speed (115200) response --
00:04:05: TTY5: detection speed (57600) response --
00:04:10: TTY5: detection speed (38400) response --
00:04:15: TTY5: detection speed (19200) response --
00:04:21: TTY5: detection speed (9600) response --
00:04:26: TTY5: detection speed (2400) response --
00:04:32: TTY5: detection speed (1200) response --
00:04:37: TTY5: detection speed (300) response --
00:04:37: TTY5: No modem found

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PIX Firewall Manager

[lee]

Hi all, has anyone familiar with PIX Firewall Manager 4.3(2)e ???
My PIX firewall is running ver 4.4(4) and my PFM is running 4.3(2)e. I
managed to add the PIX firewall into the PFM, but i don't know how to enable
the syslog & alarm feature of PFM.

Thanks in advance.

rgs,
lee


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AUX - Dial up

[Tan Choh Koon]

Hi,
 
I had connected the US Robotic Sportster modem to 
the 1720 Aux port, but router cannot detect the modem. I had used correct cable 
as what manual shown.
What I am not aware off ? 
 
 
 
line con 0 transport input noneline 
aux 0 autobaud modem InOut modem autoconfigure 
discovery stopbits 1 flowcontrol hardwareline vty 0 
4
 
Debug confmodem :
0:03:59: TTY5: detection speed (115200) response 
--00:04:05: TTY5: detection speed (57600) response --00:04:10: 
TTY5: detection speed (38400) response --00:04:15: TTY5: detection speed 
(19200) response --00:04:21: TTY5: detection speed (9600) response 
--00:04:26: TTY5: detection speed (2400) response --00:04:32: 
TTY5: detection speed (1200) response --00:04:37: TTY5: detection speed 
(300) response --00:04:37: TTY5: No modem 
found

RE: Would you recommend a good CCNP training in Seattle ?

[Bartlett, DS1]

Billy, 

I took the course with GeoTrain / GlobalKnowledge and their instructor.
They contracted through Aris corporations in Belvue Washington for the
course.  I also took this course when it was called ACRC, but it was good
none the less. 

Good luck,
Daryn

-Original Message-
From:   Billy Monroe [SMTP:[EMAIL PROTECTED]]
Sent:   Tuesday, June 27, 2000 10:05 AM
To: [EMAIL PROTECTED]
Subject:Would you recommend a good CCNP training in Seattle
?

Hello:

I am about to spend some money on BCSN. Could you please let me know
if you
have taken a CCNP course
in Seattle, WA and let me know if it was worthed.

Thanks,

Billy
BSEE, CCNA, Compaq ASE


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ISDN Dialer Profile Not Working

[Kari Nurdin]

Hi Everyone,

First time placing a post, I hope someday to share and
contribute to the group like all of you.

Recently, I had a ISDN install, the central site router consisted of two 
BRI interfaces.  Each BRI to be connected to a remote site.  My first task 
was to get BRI0 up and running to the remote location.  BRI1 to be done at a 
later date.

I configured the router using dialer profiles, however, I was not able to 
get it to work.  When doing the "show isdn status" , layer 2 status echoed:

Layer 2 Status:
TEI = 67, Ces = 1, SAPI = 0, State = MULTIPLE_FRAME_ESTABLISHED
TEI = 69, Ces = 2, SAPI = 0, State = MULTIPLE_FRAME_ESTABLISHED
TEI 67, ces = 1, state = 8(established)
spid1 configured, spid1 sent, spid1 NOT valid
TEI 69, ces = 2, state = 8(established)
spid2 configured, spid2 sent, spid2 NOT valid

As normal, I had to get this link up and functioning ASAP.  After looking 
over the configuration (the pressure didn't help), I decided to configure 
the router not using dialer profiles.  Using this configuration(NO dialer 
profiles) I was able to get the ISDN connection to the remote site up and 
running instantly.

I am stumped as to why my dialer profile configuration did not work.

I would like to use dialer profile in the future and I really would like to 
find out whats wrong with my configuration (with the groups help).  The 
following is the dialer profile configuration followed by my currently 
working configuration.  Does anyone one see something I don't.  Thanks in 
Advance.

DIALER GROUP CONFIG (not able to get working)
Central_H #show run
Building configuration...

Current configuration:
!
version 12.0
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname Central_H
!
enable secret 5 $1$64Kr$yjggfj7dlti
!
username Remote_R1 password 0 password
username Central_H  password 0 password
username Remote_R2  password 0 password
!
!
!
!
memory-size iomem 25
ip subnet-zero
no ip routing
no ip domain-lookup
!
isdn switch-type basic-ni
isdn voice-call-failure 0
!
!
!
interface BRI0
description Remote_R1
no ip address
no ip directed-broadcast
encapsulation ppp
no ip route-cache
no ip mroute-cache
dialer pool-member 1 max-link 2
isdn switch-type basic-ni
isdn spid1 55512300 123
isdn spid2 555123111200 1231112
no peer default ip address
ppp multilink
!
interface BRI1
description Remote_R2
no ip address
no ip directed-broadcast
encapsulation ppp
no ip route-cache
no ip mroute-cache
dialer pool-member 2 max-link 2
isdn switch-type basic-ni
isdn spid1 55512300 123
isdn spid2 555123111200 1231112
no peer default ip address
ppp multilink
!
interface FastEthernet0
description Central_H
ip address 10.10.10.238 255.255.255.0
no ip directed-broadcast
no ip route-cache
no ip mroute-cache
half-duplex
bridge-group 1
!
interface Dialer1
description Remote_R1
ip address 10.10.10.238 255.255.255.0
no ip directed-broadcast
encapsulation ppp
dialer remote-name Remote_R1
dialer pool 1
dialer idle-timeout 2147483
dialer load-threshold 2 outbound
dialer-group 1
pulse-time 0
ppp authentication chap
ppp multilink
bridge-group 1
!
interface Dialer2
description Remote_R2
ip address 10.10.10.238 255.255.255.0
no ip directed-broadcast
encapsulation ppp
dialer remote-name Remote_R2
dialer pool 2
dialer idle-timeout 2147483
dialer string 333
dialer string 3331112
dialer load-threshold 2 outbound
dialer-group 2
pulse-time 0
ppp authentication chap
ppp multilink
bridge-group 1
!
no ip classless
ip http server
!
logging 10.10.10.10
access-list 1 permit 10.0.0.0 0.255.255.255
dialer-list 1 protocol bridge permit
bridge 1 protocol ieee
bridge 1 priority 1
banner motd ^CCtod"Unauthorized Use is Prohibited"^C
!
line con 0
password root
login
transport input none
ip netmask-format decimal
line aux 0
line vty 0 4
access-class 1 in
password root
login
ip netmask-format decimal
!
end


CURRENTLY WORKING ISDN CONFIG (non dialer profile)
Central_H #show run
Building configuration...

Current configuration:
!
version 12.0
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname Central_H
!
enable secret 5 $1$64Kr$sXM4Opih4cVXaq2R5.eOu0
!
username Central_H  password 0 password
username Remote_R2 password 0 password
!
!
!
!
memory-size iomem 25
ip subnet-zero
no ip routing
no ip domain-lookup
!
isdn switch-type basic-ni
isdn voice-call-failure 0
!
!
!
interface Loopback0
ip address 10.10.10.238 255.255.255.0
no ip directed-broadcast
no ip route-cache
no ip mroute-cache
!
interface BRI0
description Remote_R1
no ip address
no ip directed-broadcast
encapsulation ppp
no ip route-cache
no ip mroute-cache
shutdown
dialer pool-member 1 max-link 2
isdn switch-type basic-ni
isdn spid1 55512300 123
isdn spid2 555123111200 1231112
no peer default ip address
ppp multilink
!
interface BRI1
description Remote_R2
ip address 10.10.10

Re: Capturing IP Accounting information for billing.

[John Hardman]

Hi Paul (all)...

If you have the need, checkout the Cisco SLAM product. It is a add on to
CiscoWorks.

HTH
--
John Hardman, MCSE+I, CCNA
ArrisTech/CCS-IS SysAdmin


""Paul Borghese"" <[EMAIL PROTECTED]> wrote in message
003e01bfe05b$200f90c0$[EMAIL PROTECTED]">news:003e01bfe05b$200f90c0$[EMAIL PROTECTED]...
> Does anyone know of a program that will capture IP Accounting information
> for billing purposes?
>
> Thanks,
>
> Paul Borghese
>
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FW: Counters

[Macnee, James (CHHIS CNI Support)]

-Original Message-
From: Macnee, James (CHHIS CNI Support) 
Sent: Wednesday, June 28, 2000 2:36 PM
To: 'Chuck Larrieu'
Subject: RE: Counters


Thanks for all that info.

This network that I am maintaining supports about 500 PC,s.  We have a fibre
ring in which 4 catalyst switches come off, these are the 1200 series ones.
>From there it ventures off into many hubs and routers.  Not one of our
servers are connected directly to the switch.  They all come off hubs.  The
hub that I am concerned about has our mail server on it, has also the
server which stores the home directories.  It has all the group drives.  It
also has the printers for one subnet.  It has three routers which one is the
main one for the whole site.  

I have been doing a little monitoring on it and find that according to mrtg
it has an average usage of 2.7% and max of 46%.  These figures seem so small
but when I look at the amount of collisons on that port they seem extremely
large.

The proposal for port 3 is to have a switch connected to it rather that a
hub.  What do you think about that?  This port would be only be 10mbps.

I am not to sure if that would fix it the traffic problem.  

Would it be a good idea to put another switch on the fibre ring and plug all
the servers into that.  Do you think that would fix it, and can you actually
just cut the fibre ring and add a switch in? If so how long would that take
remembering that this company is a 24 hour production mill.

Thanks again for all your help

James Macnee

-Original Message-
From: Chuck Larrieu [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, June 28, 2000 12:56 PM
To: Macnee, James (CHHIS CNI Support)
Subject: RE: Counters


Wha! Bet your booties you have collision problems on port
3

My quick read on CCO is that you have a low end switch with 8x10baseT and
2x100baseT ethernet ports. Correct? My read of the literature is that the
1200 is half duplex only on the 10baseT ports. Correct?

The product is listed as end of life, meaning no more being made, and
probably no upgrades available.

In the old days, one bought a switch to segment one's network. One usually
plugged servers directly into the switch, and move users onto smaller hubs,
which in turn connected to switch ports.. The idea was to move traffic in
and out of the servers as quickly as possible, with as few errors as
possible. And have smaller collision domains for users.

A hub is a half duplex shared medium device. So all of your servers are
still contending for space on that hub, which in turn is contending for
space on the single switch port.

In general, you want your high access, high volume devices, such as servers,
to have their own dedicated ports, and full duplex if possible.

Question 1. Are your users complaining?
Question 2. Does your boss have arms long enough to reach into his pocket to
get his wallet? :->

Seriously, you have performance issues on your server segment. If there is
some way to give each server a dedicated port on the switch, and move more
users onto shared hubs, this would help. If you do indeed have two 100baseT
ports, you might consider moving your two heaviest use servers into those
ports, and go from there. ( make sure the server NIC's support 100baseT )

Or you may want to ask the boss about purchasing something like a 1924, or
maybe a 2924, giving you a bit of flexibility and room for growth. I gather
you may be a smaller company, and dollars might be a bit tight. You
definitely want to sell the performance and service issues.

By placing four servers into a single collision domain, and expecting them
to share not only the hub, but the switch port as well, you have definitely
created a bottleneck, which is the source of your collisions.

Best wishes.

chuck

-Original Message-
From:   Macnee, James (CHHIS CNI Support) [mailto:[EMAIL PROTECTED]]
Sent:   Tuesday, June 27, 2000 5:15 PM
To: 'Chuck Larrieu'
Subject:RE: Counters

Port 3 has 4 servers and a few routers from a hub.
With the IOS on 1200 Catalyst switch how can I look to see if it is full or
harf duplex.  Also I on the other end it is a synoptic hub how can I know if
that supports full duplex.  Do I have to config that as well?

James

-Original Message-
From: Chuck Larrieu [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, June 28, 2000 11:53 AM
To: Macnee, James (CHHIS CNI Support)
Subject: RE: Counters


What's plugged into port 3?  Server?  Busy server? You might want to
configure server NIC and switch port to full duplex.

Alignment error - keep an eye out. Might or might not be indicative.

Chuck


-Original Message-
From:   [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of
Macnee, James (CHHIS CNI Support)
Sent:   Tuesday, June 27, 2000 4:02 PM
To: '[EMAIL PROTECTED]'
Subject:Counters

Hi all

I am monitoring some counters on a 1200 series catalyst switch and would
like to know what to expect and what is to high.

For example when I use t

RE: Can you block CDP with an access list???

[Aaron K. Dixon]

The easiest way to block cdp on an interface would be to diable cdp on the
interface that you didn't want to run cdp on.  CDP is disable per router
with the command 'no cdp run' or per interface with 'no cdp enable'.

If you are just trying to use an ACL you can block the MAC Multicast address
of 01-00-0C-CC-CC-CC.  Just keep in mind that CDP is not the only protocol
that uses the multicast MAC address.  I'm not positive of all the procotols
that use this address, but of the top of my head I believe that VTP uses the
same address.

Regards,

Aaron K. Dixon
WAN Element Manager - Cisco
Omnes, A Schlumberger Company


-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Aaron Prather
Sent: Tuesday, June 27, 2000 4:58 PM
To: [EMAIL PROTECTED]
Subject: Can you block CDP with an access list???


If you can what protocol does it use? UDP? i know its a protocol in
itself, but can this be done? what port number?

Thanks guys,

Aaron

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Re: Which access-list increase load the most?

[Erick]

Another thing, you can use the newer TurboACL
(compiled  ACLs) on higher platforms. 

access-list compiled

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s6/turboacl.htm

--- Robert Cabeca <[EMAIL PROTECTED]> wrote:
> Just want to say that this was a great and useful
> response!!
> Rob
> 
> -Original Message-
> From: [EMAIL PROTECTED]
> <[EMAIL PROTECTED]>
> To: [EMAIL PROTECTED] <[EMAIL PROTECTED]>
> Date: Tuesday, June 27, 2000 19:51
> Subject: Which access-list increase load the most?
> 
> 
> >
> >
> >
> >It depends (well, what did you expect??)
> >As a general rule, you're better off putting the
> access list on the
> outgoing
> >interface.  That way you don't waste bandwidth by
> transmitting traffic
> you're
> >just going to throw away anyway.
> >BUT, your *first* priority is to make sure the
> access list does what you
> want.
> >To do this, you may need to use an incoming access
> list instead.
> >
> >Example...
> >
> >rtrA  rtrB
> >
> >Let's say you want to prevent telnet traffic from
> rtrA to rtrB.
> >Assume for now that the link between the routers is
> a serial link (int S0
> on
> >both routers).
> >You could put an outgoing access list on S0 on
> rtrA:
> >rtrA:
> >access-list 101 deny tcp any any eq 23
> >access-list 101 permit ip any any
> >int s 0
> >access-class 101 out
> >
> >This will work fine (assuming my access list syntax
> is correct which I am
> making
> >no guarantees about - I haven't checked it).  You
> could put the same access
> list
> >on rtrB as an incoming access list instead, and it
> would have the same
> effect,
> >but your telnet traffic would cross the serial link
> before being dropped -
> >generally not very efficient.
> >
> >OK, what if it's not a serial link, but an
> ethernet?  Time to throw another
> >router into the mix...
> >
> >rtrA  rtrB
> > |
> >rtrC
> >
> >Now, putting that same outgoing access list on rtrA
> has a different effect
> to
> >putting it as an incoming access list on rtrB.  If
> you put the outgoing
> access
> >list on rtrA, you will not be able to telnet from
> rtrA to rtrB *or to
> rtrC*.  If
> >you put it as an incoming access list on rtrB, you
> will not be able to
> telnet
> >from rtrA to rtrB but you will be able to telnet
> from rtrA to rtrC.
> >In this case, where should you put the access list?
>  That depends
> completely on
> >what you are trying to achieve with your access
> list.
> >
> >Regardless of where you are putting your access
> list, try to put the lines
> that
> >will get the most hits near the top (again, make
> sure you don't change the
> >meaning of the access list if you change the order
> of statements).  The
> lines of
> >an access list are checked in order, and once a
> match for a packet is
> found, the
> >rest of the list isn't checked - so if most of your
> packets match the first
> >line, rather than the last, your router will spend
> less time checking
> access
> >lists.
> >
> >Here endeth the chapter :-)
> >
> >JMcL
> >
> >-- Forwarded by Jenny
> Mcleod/NSO/CSDA on 27/06/2000
> 16:28
> >---
> >
> >
> >"K.FUJIWARA" <[EMAIL PROTECTED]> on 26/06/2000
> 15:59:31
> >
> >Please respond to "K.FUJIWARA"
> <[EMAIL PROTECTED]>
> >
> >
> >To:   "[EMAIL PROTECTED]" <[EMAIL PROTECTED]>
> >cc:(bcc: JENNY MCLEOD/NSO/CSDA)
> >Subject:  Which access-list increase load the most?
> >
> >
> >
> >Hi, all.
> >
> >Though the null interface is the best solution for
> load in the ruter
> >CPU, which
> >extended / standard access-list is the best to
> reduce the load?
> >Extended one's result may be depends on where it
> will be put or the
> >case, so where
> >should it be configured? Destination?
> >If you have some good examples, please show me.
> >
> >And then, do you know good tools or utility to
> monitor the routers
> >performance on
> >CPU or RAM in real time?
> >
> >Kazuyo Fujiwara
> >MCSE/CCNA
> >Japan Kobe
> >
> >
> >
> >___
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> >
> >
> >
> >
> >
> >
> >___
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=
- Erick B. | erickbe(a)yahoo.com | http://berk.dhs.org

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Beer bash at networkers who

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RE: Review of Cisco Aironet

[Joe . McCormack]

Title: RE: Review of Cisco Aironet





When I tried it for a couple of weeks we were generally not more than 50 feet from the controller but we lost contact several times.  I really like the freedom it provides but I would hate to try to explain the outages to heavy users.

Joe


 -Original Message-
From:   [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]  On Behalf Of Chris H
Sent:   Tuesday, June 27, 2000 10:53 AM
To: [EMAIL PROTECTED]; [EMAIL PROTECTED]
Subject:    Re: Review of Cisco Aironet


The aironet device is slick.  I like what I've used so far, we are deploying 
it into all thousand of our remote sites.  It is pretty expensive though, 
and its supposed to move to 100 MB within 12 months, so the technology is 
still fairly new, and prices reflect.  The device is menu driven and easy to 
manage.


I was able to go outdoors with a laptop and walk 100 paces and still 
download files from the internet with the aironet device inside.  I would 
like one for my home...


Chris



>From: "Collin Clark" <[EMAIL PROTECTED]>
>Reply-To: "Collin Clark" <[EMAIL PROTECTED]>
>To: [EMAIL PROTECTED]
>Subject: Review of Cisco Aironet
>Date: Tue, 27 Jun 2000 10:02:15 -0500
>
>Is anyone using/deployed Cisco's WLAN solution (Aironet)? Good Points and
>bad ones. Any other WLAN solution advice appreciated (Lucent, Breezecom). 
>Do
>you get a true 11Mbs?  What's the range of that 11Mbs? Ect, ect. Thanks in
>advance.
>
>Collin
>
>
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SOME CONCEPTS

[jitec.js.cn]

GREETINGS:
First,In vlan policy,what's the difference of frame tagging and frame 
filtering?
Second,I am confused with some word of E1,such as framed E1,unframed 
E1,fragmented E1,fractional E1?


   Too many questions:-),I am  trying  to find the answer.But if some have 
the kindness to answer these questions,IT will be much help for me.

CINCERELY THANKS  

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Re: Can you block CDP with an access list???

[Erick]

Hi again,

I tried blocking it going out the router with ACL but
didn't succeed. I think this is because you can only
apply MAC-address ACLs to certain objects (bridge
groups, etc) and my lab setup isn't setup right to
really see if this works.

CDP uses 01000C-CC which is a Multicast MAC. 

Below is the config I thru together which wasn't
working from sniffer traces I was doing on my ethernet
segment. As others have said, disable CDP on the
interface (no cdp enable) so the information isn't
advertised. Lots of useful information can be learned
from sniffing a segment and looking at CDP packet
entries :)

interface Ethernet0
 ip address 192.168.1.2 255.255.255.0
 bridge-group 1
 bridge-group 1 output-address-list 701
!   

access-list 701 deny .. 0100.0ccc.
(I reversed this and also tried extended)

--- Aaron Prather <[EMAIL PROTECTED]> wrote:
> If you can what protocol does it use? UDP? i know
> its a protocol in
> itself, but can this be done? what port number?
> 
> Thanks guys,
> 
> Aaron


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Re: Which access-list increase load the most?

[Robert Cabeca]

Just want to say that this was a great and useful response!!
Rob

-Original Message-
From: [EMAIL PROTECTED] <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED] <[EMAIL PROTECTED]>
Date: Tuesday, June 27, 2000 19:51
Subject: Which access-list increase load the most?


>
>
>
>It depends (well, what did you expect??)
>As a general rule, you're better off putting the access list on the
outgoing
>interface.  That way you don't waste bandwidth by transmitting traffic
you're
>just going to throw away anyway.
>BUT, your *first* priority is to make sure the access list does what you
want.
>To do this, you may need to use an incoming access list instead.
>
>Example...
>
>rtrA  rtrB
>
>Let's say you want to prevent telnet traffic from rtrA to rtrB.
>Assume for now that the link between the routers is a serial link (int S0
on
>both routers).
>You could put an outgoing access list on S0 on rtrA:
>rtrA:
>access-list 101 deny tcp any any eq 23
>access-list 101 permit ip any any
>int s 0
>access-class 101 out
>
>This will work fine (assuming my access list syntax is correct which I am
making
>no guarantees about - I haven't checked it).  You could put the same access
list
>on rtrB as an incoming access list instead, and it would have the same
effect,
>but your telnet traffic would cross the serial link before being dropped -
>generally not very efficient.
>
>OK, what if it's not a serial link, but an ethernet?  Time to throw another
>router into the mix...
>
>rtrA  rtrB
> |
>rtrC
>
>Now, putting that same outgoing access list on rtrA has a different effect
to
>putting it as an incoming access list on rtrB.  If you put the outgoing
access
>list on rtrA, you will not be able to telnet from rtrA to rtrB *or to
rtrC*.  If
>you put it as an incoming access list on rtrB, you will not be able to
telnet
>from rtrA to rtrB but you will be able to telnet from rtrA to rtrC.
>In this case, where should you put the access list?  That depends
completely on
>what you are trying to achieve with your access list.
>
>Regardless of where you are putting your access list, try to put the lines
that
>will get the most hits near the top (again, make sure you don't change the
>meaning of the access list if you change the order of statements).  The
lines of
>an access list are checked in order, and once a match for a packet is
found, the
>rest of the list isn't checked - so if most of your packets match the first
>line, rather than the last, your router will spend less time checking
access
>lists.
>
>Here endeth the chapter :-)
>
>JMcL
>
>-- Forwarded by Jenny Mcleod/NSO/CSDA on 27/06/2000
16:28
>---
>
>
>"K.FUJIWARA" <[EMAIL PROTECTED]> on 26/06/2000 15:59:31
>
>Please respond to "K.FUJIWARA" <[EMAIL PROTECTED]>
>
>
>To:   "[EMAIL PROTECTED]" <[EMAIL PROTECTED]>
>cc:(bcc: JENNY MCLEOD/NSO/CSDA)
>Subject:  Which access-list increase load the most?
>
>
>
>Hi, all.
>
>Though the null interface is the best solution for load in the ruter
>CPU, which
>extended / standard access-list is the best to reduce the load?
>Extended one's result may be depends on where it will be put or the
>case, so where
>should it be configured? Destination?
>If you have some good examples, please show me.
>
>And then, do you know good tools or utility to monitor the routers
>performance on
>CPU or RAM in real time?
>
>Kazuyo Fujiwara
>MCSE/CCNA
>Japan Kobe
>
>
>
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>
>
>
>
>
>
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Re: T1 network

[Crystal Oakes]

http://www.paradyne.com/training_seminars/certification.html
Go to the T1 networking solutions pdf or powerpoint.

""rayza manesh"" <[EMAIL PROTECTED]> wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> I am trying to learn T1 digital network in and out.
> Would you please refer any site that explains this technology.
> All I could find were products which use T1 technologies.
>
> thanks
>
> rayza
> 
> Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com
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Re: Silicon Valley Cisco User Group

[nobody]

http://www.bacug.com/


- Original Message -
From: <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, June 27, 2000 11:45 AM
Subject: Silicon Valley Cisco User Group


>
>
> Does anyone have any info on this group - meeting times, dates, locations
or
> website
>
> Thanks in advance
>
>
>
> --

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RE: Slightly OT: Telco Line Problems

[Taylor, Don]

Sometimes the FR port will act up and cause weird errors like that too. If
the problems stopped once they went intrusive, I'd be willing to bet there
was a bad connection from the wire to the FR switch port that was fixed by
unplugging it and replugging it. If the problems resurface, ask that they
move you to another switch port.

- Don

-Original Message-
From: Raymond Everson (Rainman) [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, June 27, 2000 4:52 PM
To: John Neiberger
Cc: [EMAIL PROTECTED]; Howard C. Berkowitz
Subject: Re: Slightly OT: Telco Line Problems


I have a vast wealth of (unfortunate) experience with US West no
kidding.
US West's internal customer care POLICY is to deny any problem with their
FR network it's nearly assured you're experiencing problems arising from
some of the US West extra-terrestrials.

 here's something to try on your next event:

extended ping; 1500 byte packets; 1 second intervals; 1000 itterations; bit
patterns of 0x4040 & 0x. if you're missing every 20th =/- packet,
rest
assured mate, it's in the frame network.
R...
Rainman

John Neiberger wrote:

> >  >We are having some odd line problems at one of our branches that none
of
> us
> >  >have been able to figure out so I thought I'd throw this one out to
the
> >  >group.
> >  >
> >  >From time to time, sometimes many weeks in between events, our csu/dsu
> >  >begins to report OOF and AIS (T1 yellow alarm) errors, but the line
will
> >  >stay up for a while.  Then, at some point, we'll get a T1 red alarm
and
> the
> >  >circuit will die.  We call USWest who then tests the line.  According
to
> >  >them, they've replaced just about everything between the CO and our
> >  >location, and the line tests clean.  Friday it was bouncing every
30-60
> >  >seconds so we had them test it again.  Since the test, it has been
error
> >  >free but they claim not to have discovered any problems.
> >
> >   From CSU/DSU or router interface statistics, can you plot any pattern
> >  from when you first get errors to when it goes red?
>
> We haven't really noticed a pattern.  Although, this latest time the line
> died, the amount of time between bounces almost seemed to decrease
> logarithmically.  First it would bounce every couple of weeks, then every
> few days, then every few hours, etc. until it was bouncing every 30-60
> seconds.  At that point, I told them to do intrusive testing.  They claim
> they didn't fix a thing but the line has been perfect ever since.
>
> >
> >  >
> >  >My only remaining guesses are these two:  bad csu/dsu that isn't bad
all
> the
> >  >time, or intermittent problems at the location (we share it with a
very
> >  >large supermarket.)
> >
> >  I can't resist.  Do you have a special problem with bean counters
there?
>
> Perhaps those are the cause of the AIS errors (Actuarial Interference of
> Service) or the OOF errors (Overdose Of Fava).  
>
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Re: CCIE

[Marc Russell]

The answer is here. http://www.ccbootcamp.com/ccielab.htm


2. All successful students receive a CCIE number. The first CCIE was issued
number #1025. Number #1024 was given to the CCIE lab. They chose #1024
because 1024 is a kilohertz. "The lab will kill-ya and it hurts."






""Michael L. Williams"" <[EMAIL PROTECTED]> wrote in message
8i0iee$c04$[EMAIL PROTECTED]">news:8i0iee$c04$[EMAIL PROTECTED]...
> A CCIE friend of mine said that they started the first CCIE at 1024
(2^10).
> Don't have any clue why.  Anyone else heard this?
>
> Mike W.
>
> gwakin <[EMAIL PROTECTED]> wrote in message
> [EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> > I assume 4855 is a 'virtual' number... any idea what became of the other
> > 1062?
> >
> > Joe Martin wrote:
> >
> > >
http://www.cisco.com/warp/public/625/ccie/ccie_program/ccie_present.html
> > >
> > > 4855 as of June 1
> > >
> > > JOE
> > > CCIE 5917
> > >
> > > <[EMAIL PROTECTED]> wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> > > > Just curious does anyone know what the CCIE number is up
to?...meaning
> > > how
> > > > mant CCIE's are out there?
> > > >
> > > > ___
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Re: Can you block CDP with an access list???

[Michael Fountain]

I found this on Ciscos pages -

CDP sends packets on LANs using the multicast address 0100.0CCC..

So maybe that will help if you can set up an ACL by MAC address.  But, I am 
pretty sure that if you turn off CDP on a router it will not respond to CDP 
requests from neighbor routers.  I couldn't find anything on the web to 
verify this, but it should be pretty easy to test out.

hope that helps
mike


>
>I know you can turn off CDP completely however I do not believe it can be
>blocked by an IP access-list as it runs at layer 2.
>If I am wrong, I am sure I will be corrected here, but I am pretty sure 
>that
>is accurate based on the fact that CDP uses layer 2.
>
>
>- Original Message -
>From: "Aaron Prather" <[EMAIL PROTECTED]>
>To: <[EMAIL PROTECTED]>
>Sent: Tuesday, June 27, 2000 5:58 PM
>Subject: Can you block CDP with an access list???
>
>
> > If you can what protocol does it use? UDP? i know its a protocol in
> > itself, but can this be done? what port number?
> >
> > Thanks guys,
> >
> > Aaron
> >
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Re: Can you block CDP with an access list???

[PQ]

use the
no cdp enable
command

Erick wrote:

> CDP is layer 2.  Offhand, I don't remember the MAC
> address it uses but perhaps a MAC-address ACL will do
> the trick.
>
> Personally, I disable it since it is Cisco-only and I
> work in multi-vendor environments.
>
> --- Aaron Prather <[EMAIL PROTECTED]> wrote:
> > If you can what protocol does it use? UDP? i know
> > its a protocol in
> > itself, but can this be done? what port number?
> >
> > Thanks guys,
> >
> > Aaron
> >
> > ___
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Re: collision on cut-through switch

[cilla]

The outgoing port is to a shared Ethernet in the scenario, as  stated 
in the original message. A collision could certainly occur. To 
understand the issue, you have to think outside the box, so to speak. 
;-) Remember Ethernet says listen before you send, but two stations 
listening and hearing nothings and sending at the same time is 
perfectly normal. It's csMA/CD afterall.

Bottom line: I got the info I needed about buffering. The 
descriptions of cut-through that make it sound like the frame 
disappears out the port as soon as the dest address is read are 
oversimplified. Thanks for the info on the buffering techniques.

Priscilla



>Priscilla,
>I think we missing the issue of a switch.  Remember that for a frame to move
>from one port to another...
>If it uses the backplane... the (MCP SAMBA or one of those memorization
>thingys for CLSC) arbitrators for the backplane allows that port access
>to the backplane... THEN sends a signal to the port(s) that is NOT to drop
>the frame... or something like that... every port has a HUGE buffer for
>incoming packets from the backplane that need to egress out the port..
>(small buffer for the ingress from the port)  buy and large across the
>backplane no collision and at that point the egress on the port is already
>doing CSMA/CD...  and jamming the port to prepare for transmission
>  Late collisions can occur... but timing will not allow a normal collision
>
>If no backplane in some of the newer cards where it just passes from one
>side of the card to another  ... I understand the same sequence...
>
>Geez I wish I had not sold my study guides for the CLSC...
>
>
>Lou Nelson, CCNP, CCDA
>
>
>- Original Message -
>From: "Priscilla Oppenheimer" <[EMAIL PROTECTED]>
>To: <[EMAIL PROTECTED]>
>Sent: Friday, June 16, 2000 10:09 PM
>Subject: collision on cut-through switch
>
>
>>  Hi Group Study,
>>
>>  I got into a discussion with a knowledgeable Sniffer instructor recently.
>>  When he teaches cut-through-switching theory, he warns his students that a
>>  cut-through switch does not really isolate collision domains. Consider
>this
>>  example:
>>
>>  * The switch is receiving a frame from port 1 destined for a station out
>>  port 2.
>>  * The switch recognizes the destination address and starts forwarding the
>>  frame to port 2 ASAP.
>>  * There is a collision on port 2. (It's a shared and/or half-duplex
>Ethernet.)
>>
>>  According to the instructor, the Switch sends a jam signal back to port 1
>>  to let the initial sender know that the frame experienced a collision.
>This
>>  allows the sender to retransmit.
>>
>>  If you read some of the books on switching, you would think that this is
>>  true. The books make it sound like the frame is passing through the switch
>>  and disappearing out the destination port as soon as the destination
>>  address is recognized.
>>
>>  I don't think the Sniffer instructor's conclusion is true, however. I
>>  believe that a Cisco cut-through switch buffers the frame and hence has
>the
>>  ability to retransmit. There is no requirement to send a jam to the
>>  original sender because port 2 in our example retransmits after sensing
>the
>>  collision.
>>
>>  I believe that Cisco switches store frames, even when doing cut-through,
>>  whereas the instructor assumed that the frame has passed through and out
>>  the port and is no longer available for retransmission by the switch.
>>
>>  Cisco positions cut-through as reducing delay, not reducing the need for
>>  buffering, so I'm contending that I'm right.
>>
>>  Who do you think is right? Can you point me to any white papers that would
>>  prove who is right?
>>
>>  Thanks
>>
>>  Priscilla
>>
>>  
>>
>>  Priscilla Oppenheimer
>>  http://www.priscilla.com
>>
>>  ___
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-- 

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Fax   541-488-1708
Web   http://www.priscilla.com

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RE: Slightly OT: Telco Line Problems

[John Neiberger]

We are using a Kentrox DS1 D-Serv using ESF and B8ZS.  Before they ran their
last test on Friday I specifically asked them to check that sort of thing. 
Perhaps that turned out to be the cause and they were just too embarrassed
to tell me. 

>  Your LBO should be set to 0db.  Do not change that.  Put a line loop up
on
>  your csu/dsu and test to that.  If you run patterns to the loop clean,
then
>  you likely have a good csu.  If you are not comfortable testing your csu,
>  swap it out and use a new one.   What kind of are you using?  It sounds
as
>  if there might be some misoptioning on some equipment somewhere - could
be
>  in telco land.  Ask telco how provisioning designed the ckt.  Is it
optioned
>  esf/b8zs, d4/b8zs, esf/ami, etc.
>  
>  Makeeda
>  
>  > -Original Message-
>  > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
>  > John Neiberger
>  > Sent: Tuesday, June 27, 2000 1:05 PM
>  > To: [EMAIL PROTECTED]
>  > Cc: Dingeldey, Michael
>  > Subject: RE: Slightly OT: Telco Line Problems
>  >
>  >
>  > My guess is that yest, it is the fault of USWorst, but proving it is
>  > difficult in this case.  :-(
>  >
>  > The demarc is on the second floor of a supermarket on one side of the
>  > building, while the extended demarc is on the bottom floor,
>  > opposite side of
>  > the building.  LBO is set to 0db.  Perhaps I should change this?  That
is
>  > one option that hadn't occured to me yet.  If that were the case,
though,
>  > wouldn't be experience problems all the time?  Hmm...if the signal is
>  > getting dangerously low, I suppose if there were some sort of
intermittent
>  > interference in the building, that might cause the symptoms we're
>  > experiencing.  Food for thought!
>  >
>  > Thanks for the tips!
>  >
>  > John Neiberger, CCNA/CCDA
>  >
>  > >  Hmm and it's not the fault of USWorst?
>  > >
>  > >  A couple of things come to mind -
>  > >  You may in fact have a bad CSU; can you replace it with another unit
>  > >  and see what happens? How far are you from your demarc (where the
line
>  > >  enters the building)? And how is your line build-out set? Are
>  > you running
>  > >  hot?
>  > >
>  > >  BTW - what haven't they replaced? I have had arguments in the past
>  > >  with Telcos and providers who swear that their equipment is
>  > not at fault.
>  >
>  > >  Once they finally replace their equipment (usually their line
>  > interface),
>  > >  everything works fine.
>  > >
>  > >  HTH - that's my $.02
>  > >
>  > >  Mike Dingeldey
>  > >
>  > >  -Original Message-
>  > >  From: John Neiberger [mailto:[EMAIL PROTECTED]]
>  > >  Sent: Tuesday, June 27, 2000 12:11 PM
>  > >  To: [EMAIL PROTECTED]
>  > >  Subject: Slightly OT: Telco Line Problems
>  > >
>  > >
>  > >  We are having some odd line problems at one of our branches
>  > that none of
>  > us
>  > >  have been able to figure out so I thought I'd throw this one out to
the
>  > >  group.
>  > >
>  > >  From time to time, sometimes many weeks in between events, our
csu/dsu
>  > >  begins to report OOF and AIS (T1 yellow alarm) errors, but the
>  > line will
>  > >  stay up for a while.  Then, at some point, we'll get a T1 red alarm
and
>  > the
>  > >  circuit will die.  We call USWest who then tests the line.
>  > According to
>  > >  them, they've replaced just about everything between the CO and our
>  > >  location, and the line tests clean.  Friday it was bouncing every
30-60
>  > >  seconds so we had them test it again.  Since the test, it has
>  > been error
>  > >  free but they claim not to have discovered any problems.
>  > >
>  > >  This is the endless cycle so far:  the line dies, they test,
>  > they report
>  > no
>  > >  problems, line mysteriously works fine after test for a several
weeks,
>  > the
>  > >  line has problems, the line dies, they test...etc.
>  > >
>  > >  My only remaining guesses are these two:  bad csu/dsu that
>  > isn't bad all
>  > the
>  > >  time, or intermittent problems at the location (we share it with a
very
>  > >  large supermarket.)
>  > >
>  > >  Any thoughts?
>  > >
>  > >  TIA,
>  > >  John Neiberger, CCNA/CCDA
>  > >
>  > >
>  > >
>  > >
>  > >
>  > >  ___
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Re: Redistribute Static

[Pedro Quezada]

this is true

Michael Fountain wrote:

> The only static route that is redistributed into the routing protocols by
> default is the default route.  And, I know that is true for RIP, you'd have
> to look and see if it were true for other routing protocols also.
>
> If you want other static routes to be advertised you have to use the
> redistribute static command.
>
> hope that helps
> mike
>
> >
> >I recently attended an ACRC training course where I was told that the
> >redistribute command was only used to pass information between routing
> >protocols within one router (i.e. RIP to OSPF).  I have several routers
> >(connected together by 100 meg Ethernet) which communicate with each other
> >with only RIP v2.  There are some serial links which use RIP v1.  My static
> >routes are not sent to other routers unless I include "redistribute static"
> >under RIP.  I am on IOS 12.0(4)T.  From what I can find in the
> >documentation
> >my instructor would appear to be correct and the redistribute command is
> >unnecessary.
> >
> >If this is on one of the tests what do I answer?
> >
> >Joe McCormack
> >
> >
>
> 
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Re: Slightly OT: Telco Line Problems

[Raymond Everson (Rainman)]

I have a vast wealth of (unfortunate) experience with US West no kidding.
US West's internal customer care POLICY is to deny any problem with their
FR network it's nearly assured you're experiencing problems arising from
some of the US West extra-terrestrials.

 here's something to try on your next event:

extended ping; 1500 byte packets; 1 second intervals; 1000 itterations; bit
patterns of 0x4040 & 0x. if you're missing every 20th =/- packet, rest
assured mate, it's in the frame network.
R...
Rainman

John Neiberger wrote:

> >  >We are having some odd line problems at one of our branches that none of
> us
> >  >have been able to figure out so I thought I'd throw this one out to the
> >  >group.
> >  >
> >  >From time to time, sometimes many weeks in between events, our csu/dsu
> >  >begins to report OOF and AIS (T1 yellow alarm) errors, but the line will
> >  >stay up for a while.  Then, at some point, we'll get a T1 red alarm and
> the
> >  >circuit will die.  We call USWest who then tests the line.  According to
> >  >them, they've replaced just about everything between the CO and our
> >  >location, and the line tests clean.  Friday it was bouncing every 30-60
> >  >seconds so we had them test it again.  Since the test, it has been error
> >  >free but they claim not to have discovered any problems.
> >
> >   From CSU/DSU or router interface statistics, can you plot any pattern
> >  from when you first get errors to when it goes red?
>
> We haven't really noticed a pattern.  Although, this latest time the line
> died, the amount of time between bounces almost seemed to decrease
> logarithmically.  First it would bounce every couple of weeks, then every
> few days, then every few hours, etc. until it was bouncing every 30-60
> seconds.  At that point, I told them to do intrusive testing.  They claim
> they didn't fix a thing but the line has been perfect ever since.
>
> >
> >  >
> >  >My only remaining guesses are these two:  bad csu/dsu that isn't bad all
> the
> >  >time, or intermittent problems at the location (we share it with a very
> >  >large supermarket.)
> >
> >  I can't resist.  Do you have a special problem with bean counters there?
>
> Perhaps those are the cause of the AIS errors (Actuarial Interference of
> Service) or the OOF errors (Overdose Of Fava).  
>
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RE: hi

[Chuck Larrieu]

Every so often I like to repeat something my former CCIE boss told me -
everything you need in the way of study materials exists at www.cisco.com
no need for a lot of expensive books. just a laser printer and plenty of
paper.  :->

HTH

Chuck

-Original Message-
From:   [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of
Manoj Koshti
Sent:   Monday, June 26, 2000 2:04 PM
To: [EMAIL PROTECTED]
Subject:hi

Hey guys, looking for any good sites on ccie preparation. Any suggestions?

Thanks


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Re: Can you block CDP with an access list???

[Raymond Everson (Rainman)]

again. read up udp=layer 4
cdp=NOT layer 4
 in fatto:  cdp is cisco's implementation of stretching layer 2 rules.

The Cisco Discovery Protocol (CDP) Discovery Protocol

CDP allows devices to share basic configuration information without even
configuring any protocol
specific information.  CDP is enabled by default on all interfaces.

CDP is a Datalink Protocol occuring at Layer 2 of the OSI model.   This is
important to understand
because CDP is not routable.  It can only traverse to directly connected
devices.

CDP allows you to view information such Operating System Version, Protocol
Information, and much
more.   This can be very handy for troubleshooting a variety of problems.

Aaron Prather wrote:

> If you can what protocol does it use? UDP? i know its a protocol in
> itself, but can this be done? what port number?
>
> Thanks guys,
>
> Aaron
>
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Re: Setting the time on the router

[Raymond Everson (Rainman)]

c'mon guy, this is just plain lazy

R1#en
Password:
R1#clock ?
  set  Set the time and date

R1#clock set ?
  hh:mm:ss  Current Time

R1#clock set [n' go from there]

malzubt wrote:

>  What is the simplest way to set the time on a router.
>
> thanks
>
> --== Sent via Deja.com http://www.deja.com/ ==--
> Before you buy.
>
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Re: Can you block CDP with an access list???

[Christopher Larson]

I know you can turn off CDP completely however I do not believe it can be
blocked by an IP access-list as it runs at layer 2.
If I am wrong, I am sure I will be corrected here, but I am pretty sure that
is accurate based on the fact that CDP uses layer 2.


- Original Message -
From: "Aaron Prather" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, June 27, 2000 5:58 PM
Subject: Can you block CDP with an access list???


> If you can what protocol does it use? UDP? i know its a protocol in
> itself, but can this be done? what port number?
>
> Thanks guys,
>
> Aaron
>
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Re: Can you block CDP with an access list???

[Erick]

CDP is layer 2.  Offhand, I don't remember the MAC
address it uses but perhaps a MAC-address ACL will do
the trick. 

Personally, I disable it since it is Cisco-only and I
work in multi-vendor environments. 

--- Aaron Prather <[EMAIL PROTECTED]> wrote:
> If you can what protocol does it use? UDP? i know
> its a protocol in
> itself, but can this be done? what port number?
> 
> Thanks guys,
> 
> Aaron
> 
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Counters

[Macnee, James (CHHIS CNI Support)]

Hi all

I am monitoring some counters on a 1200 series catalyst switch and would
like to know what to expect and what is to high.

For example when I use the show port command I get 147697 single col and
201750 Multi col on port 3.  this is in a time period of 40 hours.  On
another port I have got 19 alignment errors in that time.

Can anyone out there help me?

James

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RE: Can you block CDP with an access list???

[Padhu]

 CDP is based on snap encapsulation ..so may be a layer 2 filetr based on
cdp protocol no also may work

-Original Message-
From: Feliz, Edgar
To: Aaron Prather; [EMAIL PROTECTED]
Sent: 6/27/00 5:14 PM
Subject: RE: Can you block CDP with an access list???

You can disable it on an interface basis.

EF

-Original Message-
From: Aaron Prather [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, June 27, 2000 5:58 PM
To: [EMAIL PROTECTED]
Subject: Can you block CDP with an access list???


If you can what protocol does it use? UDP? i know its a protocol in
itself, but can this be done? what port number?

Thanks guys,

Aaron

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RE: Slightly OT: Telco Line Problems

[Jean Stockton]

Your LBO should be set to 0db.  Do not change that.  Put a line loop up on
your csu/dsu and test to that.  If you run patterns to the loop clean, then
you likely have a good csu.  If you are not comfortable testing your csu,
swap it out and use a new one.   What kind of are you using?  It sounds as
if there might be some misoptioning on some equipment somewhere - could be
in telco land.  Ask telco how provisioning designed the ckt.  Is it optioned
esf/b8zs, d4/b8zs, esf/ami, etc.

Makeeda

> -Original Message-
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
> John Neiberger
> Sent: Tuesday, June 27, 2000 1:05 PM
> To: [EMAIL PROTECTED]
> Cc: Dingeldey, Michael
> Subject: RE: Slightly OT: Telco Line Problems
>
>
> My guess is that yest, it is the fault of USWorst, but proving it is
> difficult in this case.  :-(
>
> The demarc is on the second floor of a supermarket on one side of the
> building, while the extended demarc is on the bottom floor,
> opposite side of
> the building.  LBO is set to 0db.  Perhaps I should change this?  That is
> one option that hadn't occured to me yet.  If that were the case, though,
> wouldn't be experience problems all the time?  Hmm...if the signal is
> getting dangerously low, I suppose if there were some sort of intermittent
> interference in the building, that might cause the symptoms we're
> experiencing.  Food for thought!
>
> Thanks for the tips!
>
> John Neiberger, CCNA/CCDA
>
> >  Hmm and it's not the fault of USWorst?
> >
> >  A couple of things come to mind -
> >  You may in fact have a bad CSU; can you replace it with another unit
> >  and see what happens? How far are you from your demarc (where the line
> >  enters the building)? And how is your line build-out set? Are
> you running
> >  hot?
> >
> >  BTW - what haven't they replaced? I have had arguments in the past
> >  with Telcos and providers who swear that their equipment is
> not at fault.
>
> >  Once they finally replace their equipment (usually their line
> interface),
> >  everything works fine.
> >
> >  HTH - that's my $.02
> >
> >  Mike Dingeldey
> >
> >  -Original Message-
> >  From: John Neiberger [mailto:[EMAIL PROTECTED]]
> >  Sent: Tuesday, June 27, 2000 12:11 PM
> >  To: [EMAIL PROTECTED]
> >  Subject: Slightly OT: Telco Line Problems
> >
> >
> >  We are having some odd line problems at one of our branches
> that none of
> us
> >  have been able to figure out so I thought I'd throw this one out to the
> >  group.
> >
> >  From time to time, sometimes many weeks in between events, our csu/dsu
> >  begins to report OOF and AIS (T1 yellow alarm) errors, but the
> line will
> >  stay up for a while.  Then, at some point, we'll get a T1 red alarm and
> the
> >  circuit will die.  We call USWest who then tests the line.
> According to
> >  them, they've replaced just about everything between the CO and our
> >  location, and the line tests clean.  Friday it was bouncing every 30-60
> >  seconds so we had them test it again.  Since the test, it has
> been error
> >  free but they claim not to have discovered any problems.
> >
> >  This is the endless cycle so far:  the line dies, they test,
> they report
> no
> >  problems, line mysteriously works fine after test for a several weeks,
> the
> >  line has problems, the line dies, they test...etc.
> >
> >  My only remaining guesses are these two:  bad csu/dsu that
> isn't bad all
> the
> >  time, or intermittent problems at the location (we share it with a very
> >  large supermarket.)
> >
> >  Any thoughts?
> >
> >  TIA,
> >  John Neiberger, CCNA/CCDA
> >
> >
> >
> >
> >
> >  ___
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>
>
>
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FlexWAN Modules

[Adam Luy]

Anybody used the FlexWAN card and modules for Cat 6500s yet? I'm doing a 
config and would like to use these, but information on them is sparse.

Thanks,

-Adam

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Which access-list increase load the most?

[jenny . mcleod]

It depends (well, what did you expect??)
As a general rule, you're better off putting the access list on the outgoing
interface.  That way you don't waste bandwidth by transmitting traffic you're
just going to throw away anyway.
BUT, your *first* priority is to make sure the access list does what you want.
To do this, you may need to use an incoming access list instead.

Example...

rtrA  rtrB

Let's say you want to prevent telnet traffic from rtrA to rtrB.
Assume for now that the link between the routers is a serial link (int S0 on
both routers).
You could put an outgoing access list on S0 on rtrA:
rtrA:
access-list 101 deny tcp any any eq 23
access-list 101 permit ip any any
int s 0
access-class 101 out

This will work fine (assuming my access list syntax is correct which I am making
no guarantees about - I haven't checked it).  You could put the same access list
on rtrB as an incoming access list instead, and it would have the same effect,
but your telnet traffic would cross the serial link before being dropped -
generally not very efficient.

OK, what if it's not a serial link, but an ethernet?  Time to throw another
router into the mix...

rtrA  rtrB
 |
rtrC

Now, putting that same outgoing access list on rtrA has a different effect to
putting it as an incoming access list on rtrB.  If you put the outgoing access
list on rtrA, you will not be able to telnet from rtrA to rtrB *or to rtrC*.  If
you put it as an incoming access list on rtrB, you will not be able to telnet
from rtrA to rtrB but you will be able to telnet from rtrA to rtrC.
In this case, where should you put the access list?  That depends completely on
what you are trying to achieve with your access list.

Regardless of where you are putting your access list, try to put the lines that
will get the most hits near the top (again, make sure you don't change the
meaning of the access list if you change the order of statements).  The lines of
an access list are checked in order, and once a match for a packet is found, the
rest of the list isn't checked - so if most of your packets match the first
line, rather than the last, your router will spend less time checking access
lists.

Here endeth the chapter :-)

JMcL

-- Forwarded by Jenny Mcleod/NSO/CSDA on 27/06/2000 16:28
---


"K.FUJIWARA" <[EMAIL PROTECTED]> on 26/06/2000 15:59:31

Please respond to "K.FUJIWARA" <[EMAIL PROTECTED]>


To:   "[EMAIL PROTECTED]" <[EMAIL PROTECTED]>
cc:(bcc: JENNY MCLEOD/NSO/CSDA)
Subject:  Which access-list increase load the most?



Hi, all.

Though the null interface is the best solution for load in the ruter
CPU, which
extended / standard access-list is the best to reduce the load?
Extended one's result may be depends on where it will be put or the
case, so where
should it be configured? Destination?
If you have some good examples, please show me.

And then, do you know good tools or utility to monitor the routers
performance on
CPU or RAM in real time?

Kazuyo Fujiwara
MCSE/CCNA
Japan Kobe



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RE: Can you block CDP with an access list???

[Feliz, Edgar]

You can disable it on an interface basis.

EF

-Original Message-
From: Aaron Prather [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, June 27, 2000 5:58 PM
To: [EMAIL PROTECTED]
Subject: Can you block CDP with an access list???


If you can what protocol does it use? UDP? i know its a protocol in
itself, but can this be done? what port number?

Thanks guys,

Aaron

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Can you block CDP with an access list???

[Aaron Prather]

If you can what protocol does it use? UDP? i know its a protocol in
itself, but can this be done? what port number?

Thanks guys,

Aaron

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Re: Password recovery on 2503 (IOS 11.2 (16) )

[Brad Ellis]

go look on cisco's website

www.cisco.com

""Shane Stockman"" <[EMAIL PROTECTED]> wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> Please help me with the password recovery for a 2503 (IOS 11.2 (16) )
>
>
> Thanks
> 
> Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com
>
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Re: Cisco 2501 Memory

[Brad Ellis]

it has 16MB total, 14MB main, 2MB shared
-b
"Tai Ngo" <[EMAIL PROTECTED]> wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> I recently purchased a 2501 Router with IOS 12.0 and upgraded the memory
to
> 16MB.  But when the router boots up, it shows 14,???K/2048K.  Is this what
> it's suppose to show for 16MB.  The memory module I installed is a 16MB
> Parity 70ns simm.  Just wondering if that's the way it shows 16MB of RAM.
>
> When I install it on my Cisco 1000, I get 16MB upon bootup.
>
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Complete CCIE R/S Lab Kit (6 routers 1 switch)

[Brad Ellis]

All routers have 16D/8F unless otherwise specified:

2948-G switch (IOS command set identical to cat5000)
2520 router (8/8)
2513
2509
2514
1601 (4/4)
2503
5x rtr crossover cables (DB60-DB60)
console cable kit
Cisco DOC CD
5 ethernet xcvrs
1 token ring mau (RJ-45 type)
1 token ring media filter
1 Octal Cable

$10,000 + S/H

This is a complete kit for anyone serious about their CCIE.  Please contact
me if you have any further questions.

thanks,
-Brad Ellis
CCIE#5796





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Re: NT1 v TA

[Adam Luy]

NT1 is to ISDN as CSU/DSU is to T1. A TA or TA2 would be your digital or 
analog device that then connects to the NT1.


>From: "Montgomery, Robert WARCOM Contractor" <[EMAIL PROTECTED]>
>Reply-To: "Montgomery, Robert WARCOM Contractor" 
><[EMAIL PROTECTED]>
>To: Cisco <[EMAIL PROTECTED]>
>Subject: NT1 v TA
>Date: Tue, 27 Jun 2000 08:57:30 -0700
>
>What is the difference between an NT1 and a TA?  Not having used either, I
>see the are both "defined" as equipment that converts non-ISDN-compliant
>signals...  But I also see that the TA connects to the NT1.
>
>Rob Montgomery CCNA MCP
>IA Systems Analyst
>Sytex, Inc./ Naval Special Warfare Command
>
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Re: Review of Cisco Aironet

[Sriram Venkataramani]

Hey Clark,
I used one such product from 3Com called as Air Connect. This also works
pretty good. Please visit the 3Com site. You also get a 45 day free trial.
They offer a starter pack which consists of 1 Access Point device and 3
PCMCIA cards for $1500 odd. Just chk it out.

Cheers
- Original Message -
From: Chris H <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>
Sent: Tuesday, June 27, 2000 10:52 AM
Subject: Re: Review of Cisco Aironet


> The aironet device is slick.  I like what I've used so far, we are
deploying
> it into all thousand of our remote sites.  It is pretty expensive though,
> and its supposed to move to 100 MB within 12 months, so the technology is
> still fairly new, and prices reflect.  The device is menu driven and easy
to
> manage.
>
> I was able to go outdoors with a laptop and walk 100 paces and still
> download files from the internet with the aironet device inside.  I would
> like one for my home...
>
> Chris
>
>
> >From: "Collin Clark" <[EMAIL PROTECTED]>
> >Reply-To: "Collin Clark" <[EMAIL PROTECTED]>
> >To: [EMAIL PROTECTED]
> >Subject: Review of Cisco Aironet
> >Date: Tue, 27 Jun 2000 10:02:15 -0500
> >
> >Is anyone using/deployed Cisco's WLAN solution (Aironet)? Good Points and
> >bad ones. Any other WLAN solution advice appreciated (Lucent, Breezecom).
> >Do
> >you get a true 11Mbs?  What's the range of that 11Mbs? Ect, ect. Thanks
in
> >advance.
> >
> >Collin
> >
> >
> >___
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Review of Cisco Aironet

[Collin Clark]

Is anyone using/deployed Cisco's WLAN solution (Aironet)? Good Points and
bad ones. Any other WLAN solution advice appreciated (Lucent, Breezecom). Do
you get a true 11Mbs?  What's the range of that 11Mbs? Ect, ect. Thanks in
advance.

Collin


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NetFlow Switching

[Luong, David]

Hi Group.

Got an interesting problem with Netflow switching.  After enabling it on a
interface, when I try to display the statistics on the flows, the command
does not exists? (show ip route flow).  This command show be available since
I am running 12.0(8) on one of our test 7000 series routers.

Clip from CCO:

Manage NetFlow Switching Statistics
You can display and clear NetFlow switching statistics. NetFlow
statistics consist of IP packet size distribution, IP flow switching cache
information, and flow information such as the protocol, total flow, flows
per second, and so forth. The resulting information can be used to find out
information about your router traffic. To manage NetFlow switching
statistics, use either of the following commands in privileged EXEC mode: 

Command Purpose 
show ip route flow  Display the NetFlow switching statistics.   
clear ip flow stats Clear the NetFlow switching statistics. 

Anybody have ideas why?

David Luong 
CCNP,CCNA,Network+,A+,i-Net+
Telecommunications Analyst
Insurance Corporation of B.C.
Vancouver, B.C CANADA


 application/ms-tnef

Re: Cisco 11000

[John Neiberger]

Go to www.arrowpoint.com and you should find just about anything you're
looking for.  personally, about all I can say is that we have one of their
older CS-100 switches and it's an amazing box.  No wonder Cisco bought them,
their stuff just couldn't compete.

>  Anyone have any good information about this new product?  I know it is
>  the old Arrowpoint switch but I am looking for more info.
>  
>  
>  
>  
>  ___
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FW: Slightly OT: Telco Line Problems

[Art Davis]

   After battling with Qwest for weeks on a T-1 that would fail every few
days, I got Qwest's technician plus technicians from both telco sites on an
extremely tedious, 7-hour conference call. Qwest insisted that they were
seeing errors coming from both telco ends, while the telco said that they were
seeing line errors coming from the middle (Qwest). A couple of days before, I
had an MCI line put in, same telco. At the end of the call, I told Qwest,
"I've replaced both sets of routers and csus. I'm going to move the line over
to MCI's smartjack now, and we'll see if the errors continue."
   I moved the line over, and the errors disappeared. After everyone saw that
the errors had gone, we mysteriously lost Qwest from the phone call...

True story




David Toalson <[EMAIL PROTECTED]> wrote:
Intermittent problems are the worst.  I have had problems like this in
the past and have found two potential remedies.

1.  Make US West put their best technician on this issue and to have
them place a TBird type tester on site and at the CO to verify they are
getting to your CSU.  It may take quiet a while to catch the errors, but
should not interfere with you operations.

2.  If you have a spare, change out the CSU.  This will either fix the
problem or show that it is not in your equipment.

Two of the times we had this type of problem the Telco replaced their
newbridge switch at the CO and that corrected the problem.  It would
also help greatly for you to find out from their support group if there
are any other customers that are having the same type of problem.  That
is how we finally convinced the Telco it was their problem.  

I have also had several times that the Telco has "tested" a line and not
done anything, but fixed the problem.  

Good luck!

David Toalson
816-701-4142

> --
> From: John Neiberger[SMTP:[EMAIL PROTECTED]]
> Reply To: John Neiberger
> Sent: Tuesday, June 27, 2000 11:11 AM
> To:   [EMAIL PROTECTED]
> Subject:  Slightly OT:  Telco Line Problems
> 
> We are having some odd line problems at one of our branches that none
> of us
> have been able to figure out so I thought I'd throw this one out to
> the
> group.
> 
> From time to time, sometimes many weeks in between events, our csu/dsu
> begins to report OOF and AIS (T1 yellow alarm) errors, but the line
> will
> stay up for a while.  Then, at some point, we'll get a T1 red alarm
> and the
> circuit will die.  We call USWest who then tests the line.  According
> to
> them, they've replaced just about everything between the CO and our
> location, and the line tests clean.  Friday it was bouncing every
> 30-60
> seconds so we had them test it again.  Since the test, it has been
> error
> free but they claim not to have discovered any problems.
> 
> This is the endless cycle so far:  the line dies, they test, they
> report no
> problems, line mysteriously works fine after test for a several weeks,
> the
> line has problems, the line dies, they test...etc.
> 
> My only remaining guesses are these two:  bad csu/dsu that isn't bad
> all the
> time, or intermittent problems at the location (we share it with a
> very
> large supermarket.)
> 
> Any thoughts?
> 
> TIA,
> John Neiberger, CCNA/CCDA
> 
> 
> 
> 



Arthur Davis
Network Engineer
Altra Energy Technologies



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Setting this list to digest mode

[Joe Lin]

I know this should go to majordomo help, but I didn't see how to set the
list to digest mode..

Can anyone tell me what the command is?

Joe Lin
Network Engineer  
916.933.5412 x304
Electronic Freight Exchange, Corp.


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RE: ISDN problem

[Luong, David]

Title: RE: ISDN problem





Hi:


I have had several problems with spids being invalid and usually it is because the telco has mis-assigned your local spid numbers you use to talk to the local switch.  Check with the telco first and if they say the numbers are correct, try to clear the bri interface (software reset). Sometimes it needs to re-nogiate with the switch in order for it to go from await -> established.

David Luong
CCNP,CCNA,Network+,A+,i-Net+
Telecommunications Analyst
Insurance Corporation of B.C.
Vancouver, B.C CANADA



-Original Message-
From: NoOneYouKnow [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, June 27, 2000 10:23 AM
To: [EMAIL PROTECTED]
Subject: Re: ISDN problem



The reason I asked is because the sh isdn output indicates 'spid1 NOT valid'
and 'spid2 NOT valid'. That would indicate to me a problem of some sort with
the spid configuration.


---JRE---




""Quadri, Habeeb"" <[EMAIL PROTECTED]> wrote in message
[EMAIL PROTECTED]" TARGET="_blank">news:[EMAIL PROTECTED]...
> I thought if  spids are not valid you don't have connectivity to the
> carriers switch and no layer 2 connectivity.
>
> > --
> > From: NoOneYouKnow[SMTP:[EMAIL PROTECTED]]
> > Reply To: NoOneYouKnow
> > Sent: Thursday, June 22, 2000 9:24 AM
> > To: [EMAIL PROTECTED]
> > Subject: Re: ISDN problem
> >
> > ""Ken Yeo"" <[EMAIL PROTECTED]> wrote in message
> > 8irilg$5v3$[EMAIL PROTECTED]" TARGET="_blank">news:8irilg$5v3$[EMAIL PROTECTED]...
> > [snip]
> > > ISDN BRI0 interface
> > > dsl 0, interface ISDN Switchtype = basic-5ess
> > > Layer 1 Status:
> > > ACTIVE
> > > Layer 2 Status:
> > > TEI = 89, Ces = 1, SAPI = 0, State =
MULTIPLE_FRAME_ESTABLISHED
> > > I_Queue_Len 0, UI_Queue_Len 0
> > > Spid Status:
> > > TEI 89, ces = 1, state = 8(established)
> > > spid1 configured, spid1 NOT sent, spid1 NOT valid
> > > TEI Not Assigned, ces = 2, state = 1(terminal down)
> > > spid2 configured, spid2 NOT sent, spid2 NOT valid
> >
> > Maybe a dumb question, but could it be that your SPIDs are not valid?
> >
> > ---JRE---
> >
> >
> >
> >
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Re: IPSEC/ VPN query

[gwakin]

you know, it was wierd... my exact entries on the PIX config were as follows;
>>access-list 100 permit ip 10.1.10.0 255.255.255.0 10.1.1.0 255.255.255.0
and
>>isakmp key xxx address 63.x.x.x netmask 255.255.255.255
as pertaining to the tunnel.  (If you have a good idea of what constitutes an
IPSec config, then I won't bore you with the other config lines unless you request
it)
I could sometimes get a hitcount of 2 or 3 on this end of the tunnel after a
'clear xlate' or a clean reload of the PIX, and a hitcount of upwards of 120 on
the other end of the tunnel, but I was absolutely unable to route ANYTHING across
the tunnel.  All the IPSec gurus(?) at TAC huddled together and postulated that I
would need to generate a GRE tunnel to pass secure NAT traffic within the VPN
tunnel.  Having looked at their sample config and its creation of different
loopbacks on the inside router to accomodate GRE, I elected to skip it and instead
subnet my internet router and run a hub off E1 so that people needing access to
the remote network could use Secure Client and a static IP to do it.  Until the
local carriers can compensate for overselling Internet/WAN services to businesses
in the technology zones, this is what I'm stuck with until I can get an install
date.

GWA

Chuck Larrieu wrote:

> Hey, G.W. I was a bit curious about your statement regarding PIX to PIX
> IPSec tunnels.  Since an IPSec tunnel is generally done from "outside"
> interface to "outside" interface on any device, whether it be PIX, router,
> dedicated VPN gateway, what are you ( and Cisco TAC ) finding?
>
> Host_Ainside
> network-NAT/PIX/IPSec--whatever-IPSec/PIX/NAT-inside
> networkhost_B
> Data to host_B->nat_applied->IPSec takes
> over->IPSec_undone--->nat_applied->receives_data
>
> I believe this sequence is correct.
>
> Are you finding the problem is that under the PIX, the nat process
> interferes with the ability of the IPSec tunnels to form? Or that for some
> reason the destination is never reached? In theory there should be no
> problem of course. So are you finding this is just a major bug that Cisco
> needs to correct?
>
> I wonder if at this point in time one should stay with the design along the
> lines of:
>
> Source->internet->internet_router>VPN_Tunnel_gateway-firewal
> l>destination
> ( ordinary traffic is
> ||
> sent directly to the firewall )
>
> Being somewhat new to this fascinating area of routing, I want to learn all
> I can about the pitfalls.
>
> Chuck
>
> -Original Message-
> From:   [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of G.W.
> Akin
> Sent:   Thursday, June 15, 2000 7:41 PM
> To: [EMAIL PROTECTED]
> Subject:Re: IPSEC/ VPN query
>
> until PIX 5.1.x code is re-released you should stick with terminating
> your VPN tunnel on the outside interface of the PIX.  (e-mail me and
> I'll have a good sample config by then for you to use if you don't have
> one yet...)
> there is, however, one caveat... are you NAT'ing your address space?  if
> so, you are chasing the wind in trying to set up a PIX-to-PIX IPSec
> tunnel, and there is no one yet in the TAC who is able to do it.
>
> GWA
>
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RE: Slightly OT: Telco Line Problems

[Joseph J Szczepanski]

John -
Why not request that US West comes out and moves the smart-jack closer to
the equipment.  It may cost some money, but if you have them move the
smart-jack you can rule out your cabling as the problem.  Have they replaced
the smart-jack?  If not you may want to have them do that at the same time.

Joe

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
John Neiberger
Sent: Tuesday, June 27, 2000 12:05 PM
To: [EMAIL PROTECTED]
Cc: Dingeldey, Michael
Subject: RE: Slightly OT: Telco Line Problems


My guess is that yest, it is the fault of USWorst, but proving it is
difficult in this case.  :-(

The demarc is on the second floor of a supermarket on one side of the
building, while the extended demarc is on the bottom floor, opposite side of
the building.  LBO is set to 0db.  Perhaps I should change this?  That is
one option that hadn't occured to me yet.  If that were the case, though,
wouldn't be experience problems all the time?  Hmm...if the signal is
getting dangerously low, I suppose if there were some sort of intermittent
interference in the building, that might cause the symptoms we're
experiencing.  Food for thought!

Thanks for the tips!

John Neiberger, CCNA/CCDA

>  Hmm and it's not the fault of USWorst?
>
>  A couple of things come to mind -
>  You may in fact have a bad CSU; can you replace it with another unit
>  and see what happens? How far are you from your demarc (where the line
>  enters the building)? And how is your line build-out set? Are you running
>  hot?
>
>  BTW - what haven't they replaced? I have had arguments in the past
>  with Telcos and providers who swear that their equipment is not at fault.

>  Once they finally replace their equipment (usually their line interface),
>  everything works fine.
>
>  HTH - that's my $.02
>
>  Mike Dingeldey
>
>  -Original Message-
>  From: John Neiberger [mailto:[EMAIL PROTECTED]]
>  Sent: Tuesday, June 27, 2000 12:11 PM
>  To: [EMAIL PROTECTED]
>  Subject: Slightly OT: Telco Line Problems
>
>
>  We are having some odd line problems at one of our branches that none of
us
>  have been able to figure out so I thought I'd throw this one out to the
>  group.
>
>  From time to time, sometimes many weeks in between events, our csu/dsu
>  begins to report OOF and AIS (T1 yellow alarm) errors, but the line will
>  stay up for a while.  Then, at some point, we'll get a T1 red alarm and
the
>  circuit will die.  We call USWest who then tests the line.  According to
>  them, they've replaced just about everything between the CO and our
>  location, and the line tests clean.  Friday it was bouncing every 30-60
>  seconds so we had them test it again.  Since the test, it has been error
>  free but they claim not to have discovered any problems.
>
>  This is the endless cycle so far:  the line dies, they test, they report
no
>  problems, line mysteriously works fine after test for a several weeks,
the
>  line has problems, the line dies, they test...etc.
>
>  My only remaining guesses are these two:  bad csu/dsu that isn't bad all
the
>  time, or intermittent problems at the location (we share it with a very
>  large supermarket.)
>
>  Any thoughts?
>
>  TIA,
>  John Neiberger, CCNA/CCDA
>
>
>
>
>
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RE: Slightly OT: Telco Line Problems

[John Neiberger]

I didn't even catch that pun at first!  heh heh...

Yes, the demarc is extended using a 66 block at each end.  The NIU connects
to a 66 block, and we have a conduit running clear across the building to
our branch where the line terminates at another 66 block, and from there we
go to a biscuit jack to which  the CSU connects.  The demarc has been
checked and re-punched, but perhaps I should do the same at the branch, just
in case.

Thanks again!
John

>  Food for thought? Bad Pun :)
>  
>  Changing the LBO might work, but it is directly related to distance.
>  You would have to check the manual for the CSU to see what they
recommend.
>  It might be worth a shot turning it up a notch.
>  
>  In my prior lifetime I worked in a building where our demarc was 3500
feet
>  from our office (the landlord was cheap). Trying to set LBO there was
>  interesting - we always got different results. We ran anywhere from 0 to
>  7.5 db.
>  
>  The only other thing that I can think of is that there are problems in
the
>  building. By chance is anything terminated on a 66 Block (a rectangular
>  block, 
>  a couple of inches wide, and about 10 inches tall)? If so, you might want
to
>  check to see if there is any corrosion or loose wires
>  
>  The only other thing I can think of is doing some extensive testing on
the
>  inside wiring (Tbird, etc..).
>  
>  HTH.
>  
>  -Original Message-
>  From: John Neiberger [mailto:[EMAIL PROTECTED]]
>  Sent: Tuesday, June 27, 2000 1:05 PM
>  To: [EMAIL PROTECTED]
>  Cc: Dingeldey, Michael
>  Subject: RE: Slightly OT: Telco Line Problems
>  
>  
>  My guess is that yest, it is the fault of USWorst, but proving it is
>  difficult in this case.  :-(
>  
>  The demarc is on the second floor of a supermarket on one side of the
>  building, while the extended demarc is on the bottom floor, opposite side
of
>  the building.  LBO is set to 0db.  Perhaps I should change this?  That is
>  one option that hadn't occured to me yet.  If that were the case, though,
>  wouldn't be experience problems all the time?  Hmm...if the signal is
>  getting dangerously low, I suppose if there were some sort of
intermittent
>  interference in the building, that might cause the symptoms we're
>  experiencing.  Food for thought!
>  
>  Thanks for the tips!
>  
>  John Neiberger, CCNA/CCDA





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Cisco 11000

[Dave Santeramo]

Anyone have any good information about this new product?  I know it is
the old Arrowpoint switch but I am looking for more info.




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RE: Slightly OT: Telco Line Problems

[Daniel Cotts]

Sounds as if your wiring from the demarc to your equipment is rather long.
Many folks use Cat5 cable for these connections. If you suspect that you are
picking up interference locally then a possible solution is a shielded pair
wire called something like t-shield that is designed to protect such
connections. Ground the shield at one end only.

> -Original Message-
> From: John Neiberger [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, June 27, 2000 12:05 PM
> To: [EMAIL PROTECTED]
> Cc: Dingeldey, Michael
> Subject: RE: Slightly OT: Telco Line Problems
> 
> 
> My guess is that yest, it is the fault of USWorst, but proving it is
> difficult in this case.  :-(
> 
> The demarc is on the second floor of a supermarket on one side of the
> building, while the extended demarc is on the bottom floor, 
> opposite side of
> the building.  LBO is set to 0db.  Perhaps I should change 
> this?  That is
> one option that hadn't occured to me yet.  If that were the 
> case, though,
> wouldn't be experience problems all the time?  Hmm...if the signal is
> getting dangerously low, I suppose if there were some sort of 
> intermittent
> interference in the building, that might cause the symptoms we're
> experiencing.  Food for thought!
> 
> Thanks for the tips!
> 
> John Neiberger, CCNA/CCDA
> 
> >  Hmm and it's not the fault of USWorst?
> >  
> >  A couple of things come to mind - 
> >  You may in fact have a bad CSU; can you replace it with 
> another unit
> >  and see what happens? How far are you from your demarc 
> (where the line
> >  enters the building)? And how is your line build-out set? 
> Are you running
> >  hot?
> >  
> >  BTW - what haven't they replaced? I have had arguments in the past
> >  with Telcos and providers who swear that their equipment 
> is not at fault.
> 
> >  Once they finally replace their equipment (usually their 
> line interface),
> >  everything works fine. 
> >  
> >  HTH - that's my $.02
> >  
> >  Mike Dingeldey
> >  
> >  -Original Message-
> >  From: John Neiberger [mailto:[EMAIL PROTECTED]]
> >  Sent: Tuesday, June 27, 2000 12:11 PM
> >  To: [EMAIL PROTECTED]
> >  Subject: Slightly OT: Telco Line Problems
> >  
> >  
> >  We are having some odd line problems at one of our 
> branches that none of
> us
> >  have been able to figure out so I thought I'd throw this 
> one out to the
> >  group.
> >  
> >  From time to time, sometimes many weeks in between events, 
> our csu/dsu
> >  begins to report OOF and AIS (T1 yellow alarm) errors, but 
> the line will
> >  stay up for a while.  Then, at some point, we'll get a T1 
> red alarm and
> the
> >  circuit will die.  We call USWest who then tests the line. 
>  According to
> >  them, they've replaced just about everything between the CO and our
> >  location, and the line tests clean.  Friday it was 
> bouncing every 30-60
> >  seconds so we had them test it again.  Since the test, it 
> has been error
> >  free but they claim not to have discovered any problems.
> >  
> >  This is the endless cycle so far:  the line dies, they 
> test, they report
> no
> >  problems, line mysteriously works fine after test for a 
> several weeks,
> the
> >  line has problems, the line dies, they test...etc.
> >  
> >  My only remaining guesses are these two:  bad csu/dsu that 
> isn't bad all
> the
> >  time, or intermittent problems at the location (we share 
> it with a very
> >  large supermarket.)
> >  
> >  Any thoughts?
> >  
> >  TIA,
> >  John Neiberger, CCNA/CCDA
> >  
> >  
> >  
> >  
> >  
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> 
> 
> 
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Re: Limiting bandwidth on an IP address?

[Kent]

Russ, 

I think you can configure the 'rate-limit' under the
interface, it is pretty easy, just configure an ACL
then limit the bandwidth, you are done.

Kent 


--- Russ Kreigh <[EMAIL PROTECTED]> wrote:
> Hi all
> 
> I would like to limit an IP address on our network
> to 256k, the reason is
> because they have internet access and I dont want
> them to use up all the
> bandwidth, I dont want to dedicate the bandwidth,
> just put a limit on the
> maximum they can use, I have looked several places
> and have tried some
> things, but they all seemed really difficult and I
> didnt think something
> like this should be that complex, so if someone can
> help me out it would be
> appreciated.
> 
> Thanks in advance
> 
> -Russ Kreigh
> 
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Re: quick pix firewall question

[gwakin]

try CTRL + Q... works in Hyperterm...

GWA

Antonio Marfil wrote:

> what is the pix firewall 5.0 equivalent of hitting  +  on a
> cisco router to break out of a long 'show' command?   +  does
> not work.
>
> thanks in advance for your help.
>
> tony
>
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Silicon Valley Cisco User Group

[Eric_Rogers]

Does anyone have any info on this group - meeting times, dates, locations or
website

Thanks in advance



--
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RE: Slightly OT: Telco Line Problems

[Jean Stockton]

This means the csu/dsu cannot synchronize on the framing bit, or it might
mean there is a clocking or "slip" problem.  Out of Frame  (oof) errors
occur when enough frame errors have been logged.  This indicates the
equipment has lost framing completely.

When the csu/dsu is reporting RAI (T1 yellow alarm) or framed signal, you
know that the recieve is good but it is sending out the alarm because it
detects a problem with the incoming signal.

Red alarm means the csu/dsu of course is not receiving a good T1 signal -
either the incoming framing does not match its internal setting,i.e. esf or
sf.   Also there could be an open causing a loss of the incoming framing.

AIS is typically an unframed all ones.  I is sent by M13's WBDXC's and NIU's
(all telco equipment).

Verify that there is only one clock on the circuit.  Also, verify that the
csu/dsu is configured for the correct framing.

Last but not least,  since you are experiencing continuous continuity
problems demand that the local telco perform a CLASS A on the circuit.  A
CLASS A should include the following from your local telco:

DS1 SERVICE

Replace NIU and housing. Use Genius Jack if Possible!!!
Replace all coils & carbons
Replace all XCONS
Replace tie pairs
Replace repeaters where applicable
Use TDR check for Bridge Taps
Check HDSL equipement for correct optioning. Also check alarm and
performance data.
Involve Telco's 2nd Level Support



Hope this helps




Makeeda



> -Original Message-
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
> John Neiberger
> Sent: Tuesday, June 27, 2000 12:11 PM
> To: [EMAIL PROTECTED]
> Subject: Slightly OT: Telco Line Problems
>
>
> We are having some odd line problems at one of our branches that
> none of us
> have been able to figure out so I thought I'd throw this one out to the
> group.
>
> From time to time, sometimes many weeks in between events, our csu/dsu
> begins to report OOF and AIS (T1 yellow alarm) errors, but the line will
> stay up for a while.  Then, at some point, we'll get a T1 red
> alarm and the
> circuit will die.  We call USWest who then tests the line.  According to
> them, they've replaced just about everything between the CO and our
> location, and the line tests clean.  Friday it was bouncing every 30-60
> seconds so we had them test it again.  Since the test, it has been error
> free but they claim not to have discovered any problems.
>
> This is the endless cycle so far:  the line dies, they test, they
> report no
> problems, line mysteriously works fine after test for a several weeks, the
> line has problems, the line dies, they test...etc.
>
> My only remaining guesses are these two:  bad csu/dsu that isn't
> bad all the
> time, or intermittent problems at the location (we share it with a very
> large supermarket.)
>
> Any thoughts?
>
> TIA,
> John Neiberger, CCNA/CCDA
>
>
>
>
>
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hi

[Manoj Koshti]

Hey guys, looking for any good sites on ccie preparation. Any suggestions?

Thanks


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RE: CCNA v1 vs CCNA v2

[Jorge Rodriguez]

It has been said that CCNA v2 has more switching question than CCNA v1, VLAN
and so forth.

--Original Message--
From: Joe Lin <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
Sent: June 27, 2000 6:21:00 PM GMT
Subject: CCNA v1 vs CCNA v2


I am going to get my CCNA certification.  Cisco's website says CCNA v2 is
out..

Whats the difference between that and CCNA v1?  and what books cover the
CCNA v2?

I am currently reading the Sybex book.


Joe Lin
Network Engineer
916.933.5412 x304
Electronic Freight Exchange, Corp.


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Jorge Rodriguez /CCNA
Network Analyst
R&S Networks Inc
1112 Boylston Street
Suite 222
Boston, MA 02115
1-781-614-1294
http://www.netwire.n3.net/
http://www.learncisco.n3.net/

 
iWon.com   http://www.iwon.com why wouldn't you? 


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RE: Cisco 2501 Memory

[Daniel Cotts]

There are two types of DRAM memory in the Cisco 2500 series routers: primary
and shared (packet). Primary memory is used to store the operating
configuration, routing tables, caches, queues, and packets. Shared memory is
used to store incoming and outgoing packets.
In your case there is no "fixed" DRAM soldered on the system board. Your 16
MB stick is used as 2 MB Shared and 14 MB Primary.

> -Original Message-
> From: Tai Ngo [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, June 27, 2000 1:07 PM
> To: '[EMAIL PROTECTED]'
> Subject: Cisco 2501 Memory
> 
> 
> I recently purchased a 2501 Router with IOS 12.0 and upgraded 
> the memory to
> 16MB.  But when the router boots up, it shows 14,???K/2048K.  
> Is this what
> it's suppose to show for 16MB.  The memory module I installed 
> is a 16MB
> Parity 70ns simm.  Just wondering if that's the way it shows 
> 16MB of RAM.
> 
> When I install it on my Cisco 1000, I get 16MB upon bootup.  
> 
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Re: Slightly OT: Telco Line Problems

[John Neiberger]

>  >We are having some odd line problems at one of our branches that none of
us
>  >have been able to figure out so I thought I'd throw this one out to the
>  >group.
>  >
>  >From time to time, sometimes many weeks in between events, our csu/dsu
>  >begins to report OOF and AIS (T1 yellow alarm) errors, but the line will
>  >stay up for a while.  Then, at some point, we'll get a T1 red alarm and
the
>  >circuit will die.  We call USWest who then tests the line.  According to
>  >them, they've replaced just about everything between the CO and our
>  >location, and the line tests clean.  Friday it was bouncing every 30-60
>  >seconds so we had them test it again.  Since the test, it has been error
>  >free but they claim not to have discovered any problems.
>  
>   From CSU/DSU or router interface statistics, can you plot any pattern 
>  from when you first get errors to when it goes red?

We haven't really noticed a pattern.  Although, this latest time the line
died, the amount of time between bounces almost seemed to decrease
logarithmically.  First it would bounce every couple of weeks, then every
few days, then every few hours, etc. until it was bouncing every 30-60
seconds.  At that point, I told them to do intrusive testing.  They claim
they didn't fix a thing but the line has been perfect ever since.

>  
>  >
>  >My only remaining guesses are these two:  bad csu/dsu that isn't bad all
the
>  >time, or intermittent problems at the location (we share it with a very
>  >large supermarket.)
>  
>  I can't resist.  Do you have a special problem with bean counters there?

Perhaps those are the cause of the AIS errors (Actuarial Interference of
Service) or the OOF errors (Overdose Of Fava).  





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Re: Slightly OT: Telco Line Problems

[Gabriel]

Or heat... intermittent failures can often be resolved to a heat-sensitive
connection somewhere along the way, especially if your problems show up in
the summer but not winter.

"Daniel Cotts" <[EMAIL PROTECTED]> wrote in message
303479FA060CD211B893F805A88A5E38CE@EXCHANGE1">news:303479FA060CD211B893F805A88A5E38CE@EXCHANGE1...
> Look for a corelation between outages and weather. High winds or rain.
> Many years ago I worked for NYTel. Fiber didn't exist then. Only copper
for
> T-1s. At one repeater location in a manhole there was a bad seal on the
can
> or the repeater folks wanted job security. Every time there was a major
rain
> we would start to loose spans. Same order every time as the can filled
with
> water.
>
> > -Original Message-
> > From: John Neiberger [mailto:[EMAIL PROTECTED]]
> > Sent: Tuesday, June 27, 2000 11:11 AM
> > To: [EMAIL PROTECTED]
> > Subject: Slightly OT: Telco Line Problems
> >
> >
> > We are having some odd line problems at one of our branches
> > that none of us
> > have been able to figure out so I thought I'd throw this one
> > out to the
> > group.
> >
> > From time to time, sometimes many weeks in between events, our csu/dsu
> > begins to report OOF and AIS (T1 yellow alarm) errors, but
> > the line will
> > stay up for a while.  Then, at some point, we'll get a T1 red
> > alarm and the
> > circuit will die.  We call USWest who then tests the line.
> > According to
> > them, they've replaced just about everything between the CO and our
> > location, and the line tests clean.  Friday it was bouncing
> > every 30-60
> > seconds so we had them test it again.  Since the test, it has
> > been error
> > free but they claim not to have discovered any problems.
> >
> > This is the endless cycle so far:  the line dies, they test,
> > they report no
> > problems, line mysteriously works fine after test for a
> > several weeks, the
> > line has problems, the line dies, they test...etc.
> >
> > My only remaining guesses are these two:  bad csu/dsu that
> > isn't bad all the
> > time, or intermittent problems at the location (we share it
> > with a very
> > large supermarket.)
> >
> > Any thoughts?
> >
> > TIA,
> > John Neiberger, CCNA/CCDA
> >
> >
> >
> >
> >
> > ___
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>
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CCNA v1 vs CCNA v2

[Joe Lin]

I am going to get my CCNA certification.  Cisco's website says CCNA v2 is
out..

Whats the difference between that and CCNA v1?  and what books cover the
CCNA v2?

I am currently reading the Sybex book.


Joe Lin
Network Engineer  
916.933.5412 x304
Electronic Freight Exchange, Corp.


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RE: Capturing IP Accounting information for billing.

[David LaPorte]

try NeTraMet
(http://www.auckland.ac.nz/net/Accounting/ntm.Release.note.html).  It uses
Netflow data to do accounting.

Dave LaPorte

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Paul Borghese
Sent: Tuesday, June 27, 2000 1:14 PM
To: [EMAIL PROTECTED]
Subject: Capturing IP Accounting information for billing.


Does anyone know of a program that will capture IP Accounting information
for billing purposes?

Thanks,

Paul Borghese

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Re: Slightly OT: Telco Line Problems

[Howard C. Berkowitz]

>We are having some odd line problems at one of our branches that none of us
>have been able to figure out so I thought I'd throw this one out to the
>group.
>
>From time to time, sometimes many weeks in between events, our csu/dsu
>begins to report OOF and AIS (T1 yellow alarm) errors, but the line will
>stay up for a while.  Then, at some point, we'll get a T1 red alarm and the
>circuit will die.  We call USWest who then tests the line.  According to
>them, they've replaced just about everything between the CO and our
>location, and the line tests clean.  Friday it was bouncing every 30-60
>seconds so we had them test it again.  Since the test, it has been error
>free but they claim not to have discovered any problems.

 From CSU/DSU or router interface statistics, can you plot any pattern 
from when you first get errors to when it goes red?

>
>This is the endless cycle so far:  the line dies, they test, they report no
>problems, line mysteriously works fine after test for a several weeks, the
>line has problems, the line dies, they test...etc.

Is there any time pattern? Day of week, etc.?

>
>My only remaining guesses are these two:  bad csu/dsu that isn't bad all the
>time, or intermittent problems at the location (we share it with a very
>large supermarket.)

I can't resist.  Do you have a special problem with bean counters there?

>
>Any thoughts?
>
>TIA,
>John Neiberger, CCNA/CCDA

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Cisco 2501 Memory

[Tai Ngo]

I recently purchased a 2501 Router with IOS 12.0 and upgraded the memory to
16MB.  But when the router boots up, it shows 14,???K/2048K.  Is this what
it's suppose to show for 16MB.  The memory module I installed is a 16MB
Parity 70ns simm.  Just wondering if that's the way it shows 16MB of RAM.

When I install it on my Cisco 1000, I get 16MB upon bootup.  

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RE: Slightly OT: Telco Line Problems

[Rampley, Jim]

I have had the same thing.  Once I was having a timing problem and was
troubleshooting with the telco and finally convinced them to swap out some
equipment at the CO(a mux I believe).  The problem cleared up.  About 3
months later the circuit bounced and the same problem was back.  They had
tried to put that same equipment back in.  I called them within 15 min of
the problem starting and told them they must have put there broken equipment
back in.  The circuit bounced about 15 min later and was back up.
 
Jim
CCNP, CCDA, MCSE, HP OpenView
 
 -Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Dingeldey, Michael
Sent: Tuesday, June 27, 2000 11:54 AM
To: '[EMAIL PROTECTED]'
Cc: '[EMAIL PROTECTED]'
Subject: RE: Slightly OT: Telco Line Problems



Hmm and it's not the fault of USWorst? 

A couple of things come to mind - 
You may in fact have a bad CSU; can you replace it with another unit 
and see what happens? How far are you from your demarc (where the line 
enters the building)? And how is your line build-out set? Are you running
hot? 

BTW - what haven't they replaced? I have had arguments in the past 
with Telcos and providers who swear that their equipment is not at fault. 
Once they finally replace their equipment (usually their line interface), 
everything works fine. 

HTH - that's my $.02 

Mike Dingeldey 

-Original Message- 
From: John Neiberger [ mailto:[EMAIL PROTECTED]  ] 
Sent: Tuesday, June 27, 2000 12:11 PM 
To: [EMAIL PROTECTED] 
Subject: Slightly OT: Telco Line Problems 


We are having some odd line problems at one of our branches that none of us 
have been able to figure out so I thought I'd throw this one out to the 
group. 

>From time to time, sometimes many weeks in between events, our csu/dsu 
begins to report OOF and AIS (T1 yellow alarm) errors, but the line will 
stay up for a while.  Then, at some point, we'll get a T1 red alarm and the 
circuit will die.  We call USWest who then tests the line.  According to 
them, they've replaced just about everything between the CO and our 
location, and the line tests clean.  Friday it was bouncing every 30-60 
seconds so we had them test it again.  Since the test, it has been error 
free but they claim not to have discovered any problems. 

This is the endless cycle so far:  the line dies, they test, they report no 
problems, line mysteriously works fine after test for a several weeks, the 
line has problems, the line dies, they test...etc. 

My only remaining guesses are these two:  bad csu/dsu that isn't bad all the

time, or intermittent problems at the location (we share it with a very 
large supermarket.) 

Any thoughts? 

TIA, 
John Neiberger, CCNA/CCDA 





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Strange

[Chris Larson]

Why do my e-mails to the groupstudy not show up?? Is this a moderated forum?


This is sort of a test. I have never seen one of my replies in the list. I
want to see if this one makes it.

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RE: NT1 v TA

[Perusek, Rick]

The NT1 terminates the line coming from Telco (U interface) and converts
from a U interface (2 wire, RJ45) to an S/T interface (a 4 wire bus, also
RJ45.) It also provides Telco with a test point. The TA is a terminal
adapter, which converts the S/T interface into whatever interface your data
equipment requires, such as V.35. In practice, the two devices are often
combined in one box so the S/T interface is mainly a theoretical one. The
whole thing is roughly equivalent to a CSU/DSU for a T1, with the CSU
providing the necessary test point for Telco, and the DSU providing
interface conversion.

Hope this helps
-Original Message-
From: Montgomery, Robert WARCOM Contractor
[mailto:[EMAIL PROTECTED]]
Sent: Tuesday, June 27, 2000 11:58 AM
To: Cisco
Subject: NT1 v TA


What is the difference between an NT1 and a TA?  Not having used either, I
see the are both "defined" as equipment that converts non-ISDN-compliant
signals...  But I also see that the TA connects to the NT1.

Rob Montgomery CCNA MCP
IA Systems Analyst
Sytex, Inc./ Naval Special Warfare Command

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RE: Slightly OT: Telco Line Problems

[Rampley, Jim]

I had a problem circuit like this once.  The line would be good for a while
and would then go down for 8-10 hours sometimes longer and then come back
up.  The line would go down, I would call the telco(AT&T), they would run
some loopback tests.  Everything would be fine on the line.  They would say
they saw abnormal station code coming from my end.  I replaced everything
over a period of months.  Even though I had already swapped the CSU/DSU I
called Kentrox and talked to them to see if they had any further insight.  I
talked to great tech and he said, ask AT&T if they are doing a CSU loopback
or a DSU loopback.  He said a CSU loopback is basically a polarity reversal
and doesn't test data integrity.  Sure enough AT&T was only doing a CSU loop
and I ask them to do a DSU loop and they got nothing but trash.  We was then
able to narrow the problem to a bad punch down at the smart jack.  The punch
down was good enough to do the CSU polarity reversal, but would pass data
intermittently.

It turns out (at least to the AT&T guy I talked to) they only do CSU
loopbacks and hardly ever need to do a DSU loop.  It is definitely something
to add to your bag of tricks.

Jim
CCNP, CCDA, MCSE, HP OpenView

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
John Neiberger
Sent: Tuesday, June 27, 2000 11:11 AM
To: [EMAIL PROTECTED]
Subject: Slightly OT: Telco Line Problems


We are having some odd line problems at one of our branches that none of us
have been able to figure out so I thought I'd throw this one out to the
group.

>From time to time, sometimes many weeks in between events, our csu/dsu
begins to report OOF and AIS (T1 yellow alarm) errors, but the line will
stay up for a while.  Then, at some point, we'll get a T1 red alarm and the
circuit will die.  We call USWest who then tests the line.  According to
them, they've replaced just about everything between the CO and our
location, and the line tests clean.  Friday it was bouncing every 30-60
seconds so we had them test it again.  Since the test, it has been error
free but they claim not to have discovered any problems.

This is the endless cycle so far:  the line dies, they test, they report no
problems, line mysteriously works fine after test for a several weeks, the
line has problems, the line dies, they test...etc.

My only remaining guesses are these two:  bad csu/dsu that isn't bad all the
time, or intermittent problems at the location (we share it with a very
large supermarket.)

Any thoughts?

TIA,
John Neiberger, CCNA/CCDA





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Re: Review of Cisco Aironet

[Chris H]

The aironet device is slick.  I like what I've used so far, we are deploying 
it into all thousand of our remote sites.  It is pretty expensive though, 
and its supposed to move to 100 MB within 12 months, so the technology is 
still fairly new, and prices reflect.  The device is menu driven and easy to 
manage.

I was able to go outdoors with a laptop and walk 100 paces and still 
download files from the internet with the aironet device inside.  I would 
like one for my home...

Chris


>From: "Collin Clark" <[EMAIL PROTECTED]>
>Reply-To: "Collin Clark" <[EMAIL PROTECTED]>
>To: [EMAIL PROTECTED]
>Subject: Review of Cisco Aironet
>Date: Tue, 27 Jun 2000 10:02:15 -0500
>
>Is anyone using/deployed Cisco's WLAN solution (Aironet)? Good Points and
>bad ones. Any other WLAN solution advice appreciated (Lucent, Breezecom). 
>Do
>you get a true 11Mbs?  What's the range of that 11Mbs? Ect, ect. Thanks in
>advance.
>
>Collin
>
>
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Re: Capturing IP Accounting information for billing.

[John Neiberger]

Hmmm  I wonder if IP accounting info is available through a MIB? I'll
have to check.  If so, you could write a script to capture the data using
snmp.  I'm not aware of a program out there already that does this, but if
snmp can grab the data from the routers it would be a fairly simple script
to set up.  I think... :-)  I'm not much of a script writer, myself.

>  Does anyone know of a program that will capture IP Accounting information
>  for billing purposes?
>  
>  Thanks,
>  
>  Paul Borghese
>  
>  ___
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RE: VLSM Question

[Padhu]

The 4 subnets belong to diff areas. The summarization would be per area. I
don't understand where area 23 came from ?!!! ( that is the process ID - Has
nothing to do with OSPF areas )
To the best of my knowledge on a ABR you would summarize per area in the
area range command. In this case i don't think you do much. ( If these 4
subnets were in the same area you accomplish that)

Cheers,Padhu

-Original Message-
From: sumthin sumthin [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, June 27, 2000 10:58 AM
To: [EMAIL PROTECTED]; [EMAIL PROTECTED]; [EMAIL PROTECTED]
Subject: Re: VLSM Question


Sorry for the imprecise answer and for getting back so late...just got back 
from vacation.

Actually, you are correct.  A 27-bit mask is what you need.
If you were to use the 28-bit mask that I suggested, it would have excluded 
the 172.16.10.16 range.

Good job!

>From: "Sriram Venkataramani" <[EMAIL PROTECTED]>
>Reply-To: "Sriram Venkataramani" <[EMAIL PROTECTED]>
>To: "sumthin sumthin" <[EMAIL PROTECTED]>, <[EMAIL PROTECTED]>
>Subject: Re: VLSM Question
>Date: Mon, 5 Jun 2000 14:00:25 -0700
>
>Hello,
>Your answer is'nt convincing to me. Please do not take it otherwise. Can 
>you
>explain your answer?
>
>Thanks
>- Original Message -
>From: sumthin sumthin <[EMAIL PROTECTED]>
>To: <[EMAIL PROTECTED]>
>Sent: Monday, June 05, 2000 9:34 AM
>Subject: VLSM Question
>
>
> > It should be:
> > area 23 range 172.16.10.0 255.255.255.240
> >
> > --
> >
> > Date: Fri, 02 Jun 2000 23:49:40 -0700
> > From: Kurt <[EMAIL PROTECTED]>
> > Subject: VLSM Question
> >
> > I have four different interfaces on a 2514 router (e0,e1,s0,s1), each
> > interface is on a different subnet, and the mask is 30 bits. Here's they
> > are:
> > int e0 = 172.16.10.4 /30
> > int e1 = 172.16.10.8 /30
> > int s0 = 172.16.10.12 /30
> > int s1 = 172.16.10.16 /30
> > ( I only want two addresses per subnet)
> > I'm running OSPF routing protocol on this router. Each route is
> > configured in a different area, so that makes this router an Area Border
> > Router.
> > here's the logic:
> > router ospf 23
> > route 172.16.10.4 0.0.0.0 area 1
> > route 172.16.10.8 0.0.0.0 area 2
> > route 172.16.10.12 0.0.0.0 area 3
> > route 172.16.10.16 0.0.0.0 area 4
> > I want to summarize the addresses into one route for the routing table.
> > Is this possible?
> > Here's the binaries on the last octet:
> > 4 = .0100
> > 8 = .1000
> > 12= .1100
> > 16= .0001
> > I came up with summary-address 172.16.10.0 255.255.255.224
> > (ABR script = --
> >
> > Date: Fri, 02 Jun 2000 23:49:40 -0700
> > From: Kurt <[EMAIL PROTECTED]>
> > Subject: VLSM Question
> >
> > I have four different interfaces on a 2514 router (e0,e1,s0,s1), each
> > interface is on a different subnet, and the mask is 30 bits. Here's they
> > are:
> > int e0 = 172.16.10.4 /30
> > int e1 = 172.16.10.8 /30
> > int s0 = 172.16.10.12 /30
> > int s1 = 172.16.10.16 /30
> > ( I only want two addresses per subnet)
> > I'm running OSPF routing protocol on this router. Each route is
> > configured in a different area, so that makes this router an Area Border
> > Router.
> > here's the logic:
> > router ospf 23
> > route 172.16.10.4 0.0.0.0 area 1
> > route 172.16.10.8 0.0.0.0 area 2
> > route 172.16.10.12 0.0.0.0 area 3
> > route 172.16.10.16 0.0.0.0 area 4
> > I want to summarize the addresses into one route for the routing table.
> > Is this possible?
> > Here's the binaries on the last octet:
> > 4 = .0100
> > 8 = .1000
> > 12= .1100
> > 16= .0001
> > I came up with summary-address 172.16.10.0 255.255.255.224
> > (ABR script = area 23 range 172.16.10.0 255.255.255.224)
> > Is this correct?)
> > Is this correct?
> > 
> > Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com
> >
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RE: Cisco Router for Frame Relay

[Chris Larson]

I would recommend something in the 2600 series as opposed to 2500. The 2500
are fixed and the 2600 are modular allowing for growth, ISDN backup
interfaces etc. Also, the 2500 run from flash meaning anytime you want to
upgrade the IOS the router has to come down. 2600's run form memory allowing
you to install a new IOS while the router is running and reload at your
convenience. Not to mention the fact that Cisco is not manufacturing 2500's
and the ones that are being sold our stock items from Cisco and various
other distributers.

-Original Message-
From: ElephantChild [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, June 27, 2000 7:35 AM
To: [EMAIL PROTECTED]
Cc: [EMAIL PROTECTED]
Subject: Re: Cisco Router for Frame Relay


On Tue, 27 Jun 2000 [EMAIL PROTECTED] wrote:

> I want to purchase a router to configure as a frame relay switch. Can
> anyone out there tell me which is the best option for this or can any
cisco
> 2500 series router can do the job.

Most 25xx routers have 2 serial ports, which may not be enough for you.
2509-RJ and 2511-RJ have only 1, so you can't use them no matter what.
2520-2523 routers may be best, as they have 4 (2520-2521) or 10
(2522-2523), provided you can live with some of those being low-speed.

-- 
Bungee jumping and skydiving are for wimps. If you want to experience
true gut-wrenching terror, have children. --Dusty Rhoades.

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FW: Slightly OT: Telco Line Problems

[David Toalson]

Intermittent problems are the worst.  I have had problems like this in
the past and have found two potential remedies.

1.  Make US West put their best technician on this issue and to have
them place a TBird type tester on site and at the CO to verify they are
getting to your CSU.  It may take quiet a while to catch the errors, but
should not interfere with you operations.

2.  If you have a spare, change out the CSU.  This will either fix the
problem or show that it is not in your equipment.

Two of the times we had this type of problem the Telco replaced their
newbridge switch at the CO and that corrected the problem.  It would
also help greatly for you to find out from their support group if there
are any other customers that are having the same type of problem.  That
is how we finally convinced the Telco it was their problem.  

I have also had several times that the Telco has "tested" a line and not
done anything, but fixed the problem.  

Good luck!

David Toalson
816-701-4142

> --
> From: John Neiberger[SMTP:[EMAIL PROTECTED]]
> Reply To: John Neiberger
> Sent: Tuesday, June 27, 2000 11:11 AM
> To:   [EMAIL PROTECTED]
> Subject:  Slightly OT:  Telco Line Problems
> 
> We are having some odd line problems at one of our branches that none
> of us
> have been able to figure out so I thought I'd throw this one out to
> the
> group.
> 
> From time to time, sometimes many weeks in between events, our csu/dsu
> begins to report OOF and AIS (T1 yellow alarm) errors, but the line
> will
> stay up for a while.  Then, at some point, we'll get a T1 red alarm
> and the
> circuit will die.  We call USWest who then tests the line.  According
> to
> them, they've replaced just about everything between the CO and our
> location, and the line tests clean.  Friday it was bouncing every
> 30-60
> seconds so we had them test it again.  Since the test, it has been
> error
> free but they claim not to have discovered any problems.
> 
> This is the endless cycle so far:  the line dies, they test, they
> report no
> problems, line mysteriously works fine after test for a several weeks,
> the
> line has problems, the line dies, they test...etc.
> 
> My only remaining guesses are these two:  bad csu/dsu that isn't bad
> all the
> time, or intermittent problems at the location (we share it with a
> very
> large supermarket.)
> 
> Any thoughts?
> 
> TIA,
> John Neiberger, CCNA/CCDA
> 
> 
> 
> 
> 
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Re: ISDN problem

[NoOneYouKnow]

The reason I asked is because the sh isdn output indicates 'spid1 NOT valid'
and 'spid2 NOT valid'. That would indicate to me a problem of some sort with
the spid configuration.

---JRE---



""Quadri, Habeeb"" <[EMAIL PROTECTED]> wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> I thought if  spids are not valid you don't have connectivity to the
> carriers switch and no layer 2 connectivity.
>
> > --
> > From: NoOneYouKnow[SMTP:[EMAIL PROTECTED]]
> > Reply To: NoOneYouKnow
> > Sent: Thursday, June 22, 2000 9:24 AM
> > To: [EMAIL PROTECTED]
> > Subject: Re: ISDN problem
> >
> > ""Ken Yeo"" <[EMAIL PROTECTED]> wrote in message
> > 8irilg$5v3$[EMAIL PROTECTED]">news:8irilg$5v3$[EMAIL PROTECTED]...
> > [snip]
> > > ISDN BRI0 interface
> > > dsl 0, interface ISDN Switchtype = basic-5ess
> > > Layer 1 Status:
> > > ACTIVE
> > > Layer 2 Status:
> > > TEI = 89, Ces = 1, SAPI = 0, State =
MULTIPLE_FRAME_ESTABLISHED
> > > I_Queue_Len 0, UI_Queue_Len 0
> > > Spid Status:
> > > TEI 89, ces = 1, state = 8(established)
> > > spid1 configured, spid1 NOT sent, spid1 NOT valid
> > > TEI Not Assigned, ces = 2, state = 1(terminal down)
> > > spid2 configured, spid2 NOT sent, spid2 NOT valid
> >
> > Maybe a dumb question, but could it be that your SPIDs are not valid?
> >
> > ---JRE---
> >
> >
> >
> >
> > ___
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> >
>
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RE: Slightly OT: Telco Line Problems

[Joseph J Szczepanski]

Also,
you may want to request that the local loops be put on monitoring for a
while.  This may help them to identify problems.

Joe

-Original Message-
From: Joseph J Szczepanski [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, June 27, 2000 11:54 AM
To: [EMAIL PROTECTED]
Subject: RE: Slightly OT: Telco Line Problems


I am assuming that you have also tried replacing your equipment.  If not
start there.  As far as the local telco saying they didn't do anything other
then test is typical.  I hear this excuse often.  Same type of scenerio.
Problem with line, escalate to local telco, they montior, problem goes away,
they claim they fixed nothing.  Actually, this happened to me yesterday.

Joe

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
John Neiberger
Sent: Tuesday, June 27, 2000 11:11 AM
To: [EMAIL PROTECTED]
Subject: Slightly OT: Telco Line Problems


We are having some odd line problems at one of our branches that none of us
have been able to figure out so I thought I'd throw this one out to the
group.

>From time to time, sometimes many weeks in between events, our csu/dsu
begins to report OOF and AIS (T1 yellow alarm) errors, but the line will
stay up for a while.  Then, at some point, we'll get a T1 red alarm and the
circuit will die.  We call USWest who then tests the line.  According to
them, they've replaced just about everything between the CO and our
location, and the line tests clean.  Friday it was bouncing every 30-60
seconds so we had them test it again.  Since the test, it has been error
free but they claim not to have discovered any problems.

This is the endless cycle so far:  the line dies, they test, they report no
problems, line mysteriously works fine after test for a several weeks, the
line has problems, the line dies, they test...etc.

My only remaining guesses are these two:  bad csu/dsu that isn't bad all the
time, or intermittent problems at the location (we share it with a very
large supermarket.)

Any thoughts?

TIA,
John Neiberger, CCNA/CCDA





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Re: Dial up usinng Asyn interface

[News Cisco]

yes...
u r rite...
u cant dial out using a serial/synch port as an asynch as wid ur 2501
try the aux port, configure an asych interface (u'll only get one asynch
option since 1 aux port), search for a sample config at Cisco site "Dial Out
through AUX"
'Bliss'


"Tan Choh oon" <[EMAIL PROTECTED]> wrote in message
002901bfd42f$9ab3f6a0$[EMAIL PROTECTED]">news:002901bfd42f$9ab3f6a0$[EMAIL PROTECTED]...
Hi,

I had 2501 router, 1 Ethernet , 2 Syn port and 1 Aux port.
I like to coonect the 56k dial up modem to serial 0 , and configure it to
DDR to ISP.
My question is how do i configure the serial 0 ( syn interface)  to dial out
?

As far as i knew only asyn serial, Aux port and syn/async serial is capable
to do dial up.
Can Sync serial port do dial out ?? If can please give sample config.

Thanks.

C.K.Tan


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RE: Slightly OT: Telco Line Problems

[Daniel Cotts]

Look for a corelation between outages and weather. High winds or rain. 
Many years ago I worked for NYTel. Fiber didn't exist then. Only copper for
T-1s. At one repeater location in a manhole there was a bad seal on the can
or the repeater folks wanted job security. Every time there was a major rain
we would start to loose spans. Same order every time as the can filled with
water.

> -Original Message-
> From: John Neiberger [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, June 27, 2000 11:11 AM
> To: [EMAIL PROTECTED]
> Subject: Slightly OT: Telco Line Problems
> 
> 
> We are having some odd line problems at one of our branches 
> that none of us
> have been able to figure out so I thought I'd throw this one 
> out to the
> group.
> 
> From time to time, sometimes many weeks in between events, our csu/dsu
> begins to report OOF and AIS (T1 yellow alarm) errors, but 
> the line will
> stay up for a while.  Then, at some point, we'll get a T1 red 
> alarm and the
> circuit will die.  We call USWest who then tests the line.  
> According to
> them, they've replaced just about everything between the CO and our
> location, and the line tests clean.  Friday it was bouncing 
> every 30-60
> seconds so we had them test it again.  Since the test, it has 
> been error
> free but they claim not to have discovered any problems.
> 
> This is the endless cycle so far:  the line dies, they test, 
> they report no
> problems, line mysteriously works fine after test for a 
> several weeks, the
> line has problems, the line dies, they test...etc.
> 
> My only remaining guesses are these two:  bad csu/dsu that 
> isn't bad all the
> time, or intermittent problems at the location (we share it 
> with a very
> large supermarket.)
> 
> Any thoughts?
> 
> TIA,
> John Neiberger, CCNA/CCDA
> 
> 
> 
> 
> 
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Capturing IP Accounting information for billing.

[Paul Borghese]

Does anyone know of a program that will capture IP Accounting information
for billing purposes?

Thanks,

Paul Borghese

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RE: Test

[Miller, Brent (NAO)]

This is a test



This email may contain material that is confidential, privileged and/or
attorney work product for the sole use of the intended recipient.  Any
review, reliance or distribution by others or forwarding without express
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Problems with Sendmail

[Paul Borghese]

Hi everyone,
 
Sendmail seems to be a little unstable these last few days. Last night 
I stopped everything, cleared the queue and restarted.  That seems to have 
fixed the problem (for now).  But you may not receive all of the messages 
from the list. 
 
All messages may be found on the Newsfeed.
 
Let's hope it is now more stable.  Sorry!
 
Paul

RE: Review of Cisco Aironet

[Irwin Lazar]

We're using 802.11b in our office and we love it.  We use the Apple AirPort
base station, which is made by Lucent but sells for only $299.  It supports
up to 10 users but you need a Macintosh to configure it (or a freeware Java
app).  As far as NICs, we're using Lucent PCMCIA cards.  We're getting true
11Mbps at distances of roughly 30-50 meters.

The Lucent & Aironet basestations are considerably more expensive, but offer
more features and functionality.  The airport offers pretty good access
control as well.  I plan on buying an Airport for the house in a few weeks.

Irwin

-Original Message-
From: Collin Clark [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, June 27, 2000 11:02 AM
To: [EMAIL PROTECTED]
Subject: Review of Cisco Aironet


Is anyone using/deployed Cisco's WLAN solution (Aironet)? Good Points and
bad ones. Any other WLAN solution advice appreciated (Lucent, Breezecom). Do
you get a true 11Mbs?  What's the range of that 11Mbs? Ect, ect. Thanks in
advance.

Collin


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Re: Token ring question - Solved!

[NoOneYouKnow]

""Edward Solomon"" <[EMAIL PROTECTED]> wrote in message
8jabbo$1uf$[EMAIL PROTECTED]">news:8jabbo$1uf$[EMAIL PROTECTED]...
> "Dale Cantrell" <[EMAIL PROTECTED]> wrote:
>
> > I'm gonna have to disagree with that statement. At least in part. The
MAU
> > that I have, STAR-TEK, ( I can't even find out how old it is, no Url.)
> > 828AT, has 1-8 ports and a Ri and a Ro also. Tell me if yours is
> > the same way?
>
> We have to qualify this statement:
>
> > Ports 1 and 8 on a MAU are reserved for ring in and ring out for daisy
> > chaining MAU's.  You cannot use them for stations.
>
> This applies specifically to the IBM 8228 Token Ring MAU, which is the
> device referred to in the original post.

IBM 8228s have 8 station ports (labled 1 through 8) plus a seperate RI on
the left and RO on the right (10 total ports).

---JRE---


>
>
> Edward Solomon
> CCNA, CCSI
> Senior I/T Specialist
> Networking Solutions
> IBM Canada Ltd. - Learning Services
> Tel.: (905) 316-3241  Fax: (905) 316-3101
> E-mail: [EMAIL PROTECTED]
> Internet: http://www.can.ibm.com/services/learning/net_internet.html
>
>
>
>
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RE: Slightly OT: Telco Line Problems

[John Neiberger]

My guess is that yest, it is the fault of USWorst, but proving it is
difficult in this case.  :-(

The demarc is on the second floor of a supermarket on one side of the
building, while the extended demarc is on the bottom floor, opposite side of
the building.  LBO is set to 0db.  Perhaps I should change this?  That is
one option that hadn't occured to me yet.  If that were the case, though,
wouldn't be experience problems all the time?  Hmm...if the signal is
getting dangerously low, I suppose if there were some sort of intermittent
interference in the building, that might cause the symptoms we're
experiencing.  Food for thought!

Thanks for the tips!

John Neiberger, CCNA/CCDA

>  Hmm and it's not the fault of USWorst?
>  
>  A couple of things come to mind - 
>  You may in fact have a bad CSU; can you replace it with another unit
>  and see what happens? How far are you from your demarc (where the line
>  enters the building)? And how is your line build-out set? Are you running
>  hot?
>  
>  BTW - what haven't they replaced? I have had arguments in the past
>  with Telcos and providers who swear that their equipment is not at fault.

>  Once they finally replace their equipment (usually their line interface),
>  everything works fine. 
>  
>  HTH - that's my $.02
>  
>  Mike Dingeldey
>  
>  -Original Message-
>  From: John Neiberger [mailto:[EMAIL PROTECTED]]
>  Sent: Tuesday, June 27, 2000 12:11 PM
>  To: [EMAIL PROTECTED]
>  Subject: Slightly OT: Telco Line Problems
>  
>  
>  We are having some odd line problems at one of our branches that none of
us
>  have been able to figure out so I thought I'd throw this one out to the
>  group.
>  
>  From time to time, sometimes many weeks in between events, our csu/dsu
>  begins to report OOF and AIS (T1 yellow alarm) errors, but the line will
>  stay up for a while.  Then, at some point, we'll get a T1 red alarm and
the
>  circuit will die.  We call USWest who then tests the line.  According to
>  them, they've replaced just about everything between the CO and our
>  location, and the line tests clean.  Friday it was bouncing every 30-60
>  seconds so we had them test it again.  Since the test, it has been error
>  free but they claim not to have discovered any problems.
>  
>  This is the endless cycle so far:  the line dies, they test, they report
no
>  problems, line mysteriously works fine after test for a several weeks,
the
>  line has problems, the line dies, they test...etc.
>  
>  My only remaining guesses are these two:  bad csu/dsu that isn't bad all
the
>  time, or intermittent problems at the location (we share it with a very
>  large supermarket.)
>  
>  Any thoughts?
>  
>  TIA,
>  John Neiberger, CCNA/CCDA
>  
>  
>  
>  
>  
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Would you recommend a good CCNP training in Seattle ?

[Billy Monroe]

Hello:

I am about to spend some money on BCSN. Could you please let me know if you
have taken a CCNP course
in Seattle, WA and let me know if it was worthed.

Thanks,

Billy
BSEE, CCNA, Compaq ASE


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