date:20001226


That is weird, but if that's the case put the interface to the upstream in
passive mode and give it a try.  That way your providor won't see any
advertisements from you (Which they should ignore anyway).

Shawn

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Timothy Metz
Sent: Tuesday, December 26, 2000 3:56 AM
To: [EMAIL PROTECTED]
Subject: IGRP Propagation???

Here's a strange one... maybe someone can shed some light...

My home setup:

Access Layer: 2505
Distro Layer: 2501
Core Layer: Netgear RT314 (DSL Router)

Workstations on 8 port hub (built into the 2505)
Access to Distro: Frame Relay
Distro to Core (LAN side): Ethernet
Core to Cloud (WAN side): Seimans DSL Modem

I don't know alot about the telecom side of DSL but my ISP knows who I am
based on my login, I do not get authenticated when checking mail or news.

If I enable IGRP on the Cisco routers (The netgear is RIP only) then I get a
message saying that I am not authorized to access the mail or news server on
the ISP side. When I disable IGRP all is fine.


Any thoughts?


Thanks,

Tim


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Re: Confused (was Re: is this statement true ??)

2000-12-26 Thread Andy Walden



This is correct. You don't use full duplex if you are competing for
bandwidth, ie, plugged into a hub. But if you are plugged into a switch,
there is only one bandwidth domain between the device and switch and
with nothing competing for the bandwidth on that link so you can go full
duplex.

andy

On Tue, 26 Dec 2000, John lay wrote:

 Priscilla, everybody,
 
 I am confused. Ethernet and FastEthernet uses the CSMA/CD as a channel
 allocation techinque in a shared media access envoiroment.
 Here it comes the confusion, when you are saying that the Full-duplex does
 not support CSMA/CD because the transmit and receive are on different wires.
 This implies that in this case there is no shared media, how come if  you
 have two clients competing to talk to the  same server simultaneously!!
 
 Thanx 
 
 
 On Mon, 25 Dec 2000 16:36:11 -0800, Priscilla Oppenheimer wrote:
 
   It's true for Ethernet because Ethernet's CSMA/CD media access control 
   method has strict timing requirements, which result in strict length 
   restrictions. Half-duplex uses CSMA/CD. Full-duplex does not.
   
   I wouldn't say it's true in general, however.
   
   Priscilla
   
   At 05:32 PM 12/25/00, Li Song wrote:
   "full-duplex can be used over longer distance than
   half-duplex" ??
   what 's your opinion ??
   
   
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RE: Confused (was Re: is this statement true ??)

2000-12-26 Thread MCDONALD, ROMAN (SBCSI)

Remember - Full Duplex needs microsegmentation.

-Original Message-
From: Bowen, Shawn [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, December 26, 2000 8:30 AM
To: John lay; Priscilla Oppenheimer; [EMAIL PROTECTED]
Subject: RE: Confused (was Re: is this statement true ??)

Good Question Jon.  Full Duplex Ethernet cannot be performed except for on
an Ethernet Switch (AKA big multiport bridge, or a simple bridge) or on a
back to back connection between 2 machines.  So, as you can see, there can
NEVER be more than 2 stations on the same physical "topological" segment for
full duplex, therefore it is not a shared media from a "Collision" since,
but it is the same media from a "Broadcast" since.  I'm sure Priscilla can
put it in better words but that's the lowdown in mine:)

Shawn

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of John
lay
Sent: Tuesday, December 26, 2000 6:51 AM
To: Priscilla Oppenheimer; [EMAIL PROTECTED]
Subject: Confused (was Re: is this statement true ??)

Priscilla, everybody,

I am confused. Ethernet and FastEthernet uses the CSMA/CD as a channel
allocation techinque in a shared media access envoiroment.
Here it comes the confusion, when you are saying that the Full-duplex does
not support CSMA/CD because the transmit and receive are on different wires.
This implies that in this case there is no shared media, how come if  you
have two clients competing to talk to the  same server simultaneously!!

Thanx

On Mon, 25 Dec 2000 16:36:11 -0800, Priscilla Oppenheimer wrote:

  It's true for Ethernet because Ethernet's CSMA/CD media access control
  method has strict timing requirements, which result in strict length
  restrictions. Half-duplex uses CSMA/CD. Full-duplex does not.

  I wouldn't say it's true in general, however.

  Priscilla

  At 05:32 PM 12/25/00, Li Song wrote:
  "full-duplex can be used over longer distance than
  half-duplex" ??
  what 's your opinion ??

  _
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  Priscilla Oppenheimer
  http://www.priscilla.com

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RE: Difference between Directed Boradcast and Mulitcast

2000-12-26 Thread MCDONALD, ROMAN (SBCSI)


A directed broadcast hits (is processed by) EVERY host on the targeted
subnet while a
multicast is based on membership to a multicast group.  With multicast, you
can do things
such as block propagation on certain switch ports and forward on others even
though they are
in the same VLAN through the use of CGMP and the like.  The differences are
numerous and this
probably just scratches the surface.

Roman

-Original Message-
From: Hunt [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, December 26, 2000 8:21 AM
To: [EMAIL PROTECTED]
Subject: Difference between Directed Boradcast and Mulitcast


What is the difference between Directed Boradcast and Mulitcast?

Hunt   =^o^=


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CVOICE

2000-12-26 Thread Austin


Can anyone give me some recommended resources to use to prepare for the
CVOICE exam?
How are the Boson Practise Tests for this exam.
All comments appreciated.


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interface stats, physical problem or high utilization?

2000-12-26 Thread Kane, Christopher A.


I'm looking for some feedback to a discussion I had with a co-worker. I'm
not looking for troubleshooting assistance with this problem. Rather, I
would like to know if anyone else has experienced a similar situation in
which a utilization problem looks like a physical problem?

We had a customer with a 56k Frame ckt terminating into a Cisco 2524 with an
integrated 4-wire CSU/DSU. The end user was complaining of dropping when
trying to pull large files (3 meg).
The interface stats showed Input errors, CRCs and carrier transitions.
Myself and the telco were able to test end-to-end clean several times. We
then swapped the 2524 for fear that the integrated CSU/DSU was flaky. The
problem remained.

Then my co-worker made a statement that I am having a hard time agreeing
with. He stated that it must be heavy utilization by the end user that is
causing the problem. Could that be? A utilization problem that looks like a
physical problem according to the stats provided by the serial interface?

It's always fun to banter with co-workers. Round-table discussions in front
of the whiteboard are my favorite part of the job.

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Re: adv. of ATM over frame relay


You may also want to check out this presentation by the Frame Relay
Forum. 
http://www.frforum.com/4000/4014.html#frinterwork

D'souza Agnelo wrote:
 
 Hi,
 Could someone give me the advantages of ATM over frame
 relay.
 
 Agn
 
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Re: adv. of ATM over frame relay


You may also want to check out this presentation by the Frame Relay
Forum. 
http://www.frforum.com/4000/4014.html#frinterwork

D'souza Agnelo wrote:
 
 Hi,
 Could someone give me the advantages of ATM over frame
 relay.
 
 Agn
 
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Re: On RFC2328 - OSPF 2

2000-12-26 Thread Howard C. Berkowitz


First, from the certification perspective, you don't really need to 
know the details of the link state route computation algorithm.

Second, Jeff Doyle and Radia Perlman wrote fairly generic 
descriptions of what is happening, but not at a detail of precision 
that is needed to implement the code.  RFC2328, although no paragon 
of clear writing, is at that level.  John Moy's _OSPF: Anatomy of an 
IP Routing Protocol_ doesn't go into the computational details, 
although his new one, _OSPF Complete Implementation_, appears to do 
so (I just got it).

Third, there are differences in the conceptual algorithm and the way 
it is implemented. See http://www.nanog.org/mtg-0010/igp.html for a 
discussion of concerns before we can reach millisecond convergence in 
interior routing protocols.  Briefly, Dijkstra's algorithm is 40 
years old, and there are alternatives that produce the same output 
but much faster.

Fourth, route computation algorithms, in general, really are complex. 
You won't understand them thoroughly without a good knowledge of data 
structures and search algorithms, typically an upper undergraduate or 
graduate course in computer science.  Thorough understanding of 
finite state machines is essential. You will also need to track the 
IETF working groups to understand implementation issues.

Believe me, you don't necessarily need to get into all the details. 
I'm the routing software architect in my product development group, 
and on the one hand need to restrain my hardware colleagues into 
getting too deep into algorithms that will be in software, and on the 
other hand remember that I may not be the person to write the fastest 
code (any more...sigh).

"Katson PN Yeung" [EMAIL PROTECTED] said,

For me, I find Radia Pearlman one is easy to follow


"Jaeheon Yoo" [EMAIL PROTECTED] wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
  Hi,
  Merry Christmas and Happy New Year to All!

  I'm reading RFC 2328, fortunately most part of  it is understandable
  for me. But "16. Calculation of the routing table" part is extremely
  hard to follow. Although Jeff Doyle's explanation of Dijkstra's
  algorithm sounds easy and interesting, why is it so tough in original
  document? Is this essential or required for me to thoroughly
  understand it in its original terms? In that case, are there any plain
  language version of it out there?

   Thanks in advance

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RE: Case: SC-00907239 Exam Survey Inquiry


. I guess Cisco can't manage to hire skilled
people for jobs that require communicating with the public

Not just Cisco.  Granted we all need to be a bit more tolerant of typos in
e-mail, which has become more of a "chat" medium than a "written" medium.
But the fact is that at least in the US there are generations of people who
managed to survive our school system with little idea about how to construct
a sentence. Case agreement? Subject verb object? Plurals and singulars
mixed? Forget about factual content.

Someone who has written a very clear and understandable technical book once
said that the key, in her estimation, is to re-read everything you write.
Good advice, no matter how busy one is, or what the forum.

Chuck

-Original Message-
From:   [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of
Priscilla Oppenheimer
Sent:   Sunday, December 24, 2000 12:34 PM
To: Adam Quiggle; [EMAIL PROTECTED]
Subject:Re: Case: SC-00907239 Exam Survey Inquiry

At 08:55 PM 12/23/00, Adam Quiggle wrote:
Hmmm...based upon the entire paragraph I would agree that the
survey has no bearing on the actual exam.  However, a more
literal interpretation indicates that it DOES have bearing. ;-)


1st paragraph
---
***These surveys does reflect in any way on the exam.

Clearly he forgot a word, "not." The message that we need to get out is
that your answers to the survey DO NOT affect your test score. I'd like to
ask everyone to stop spreading that silly rumor.

At the very least, there are conflicting statements within
the entire message.


2nd paragraph
---
***The surveys again does not reflect on the exams.***


My guess is that the writer is kicking himself for such an
inconsistent email.  Doh!  I hate it when that happens! :-)


I doubt he is kicking himself. A lot of Cisco people don't have a clue how
to proof read. I don't think he even knows what awful writing that was,
(though I did respond and point it out, of course. ;-) There is a labor
shortage in Silicon Valley. I guess Cisco can't manage to hire skilled
people for jobs that require communicating with the public. Sorry, if that
sounds really cynical.

Priscilla


Happy Holidays to all,
AQ


At 02:07 PM 12/19/00, Priscilla Oppenheimer wrote:
 Well, here you have your answer, if you can parse it. It appears to be
 written by a non-native English speaker, as is probably the case with the
 survey instructions on the test.
 
 Priscilla
 
 At 09:13 AM 12/19/00, you wrote:
  Dear Customer,
  
  Thank you for contacting the Cisco Training.  In regards to your
question,
  the surveys given before the exam is for customer service evaluation
and
  statistics.  One is from Prometric, the testing vendor, is for customer
  service on the exam.  The other survey is from Cisco to see if a
candidate
  has any backgrounds in the networking industry.  These surveys does
  reflect in any way on the exam.
  If a candidate has no or little experience/backgrounds in the
networking
  industry and replys in the surveys with that answer, the exam(s) will
not
  be easier.  The surveys again does not reflect on the exams.
  
  If you have further questions, please feel free to contact us for
  assistance.
  
  Kind regards,
  The Cisco Career Certifications Team
 
 




Priscilla Oppenheimer
http://www.priscilla.com

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RE: On RFC2328 - OSPF 2


Reading RFC's is a wonderful way to prepare oneself for a good night's sleep
:-

That said, those I have read have taught me two things: 1) what's in them
and 2) there is nothing in them that isn't covered as well if not better in
some of the standard texts we are all reading.

RFC2328 does not strike me as particularly well organized, for example. On
the other hand, reading through it goes a long way towards showing me what
kinds of things are standard versus what kind of things are Cisco
proprietary. For example, the router priority and how that works. Means that
in theory, Cisco, Nortel, and Lucent are all interoperable in terms of how
the priority works, and therefore which router becomes the DR, for example.
Or that the RID determination is probably NOT standard. RFC2328 suggests
that the RID might, for example, be the LOWEST IP address on any interface.
But it DOES state that RID's must be unique within an AS, and that it
something I wondered about and was just about to do a QD lab to test.

As far as what one should walk away with after reading an RFC, my thought is
just an understanding of what is covered and how that relates to the way
Cisco does things. I'm sure not going to spend a lot of time figuring out
how to perform SPF calculations. People with PhD's in math spend years
figuring that kind of stuff out. This calculus flunky has better things to
do. :-

Chuck

-Original Message-
From:   [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of
Jaeheon Yoo
Sent:   Sunday, December 24, 2000 11:38 PM
To: [EMAIL PROTECTED]
Subject:On RFC2328 - OSPF 2

Hi,
Merry Christmas and Happy New Year to All!

I'm reading RFC 2328, fortunately most part of  it is understandable
for me. But "16. Calculation of the routing table" part is extremely
hard to follow. Although Jeff Doyle's explanation of Dijkstra's
algorithm sounds easy and interesting, why is it so tough in original
document? Is this essential or required for me to thoroughly
understand it in its original terms? In that case, are there any plain
language version of it out there?

Thanks in advance

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Re: About MPLS


Below are two cisco documents.

http://www.cisco.com/warp/public/cc/so/neso/vvda/ipatm/index.shtml

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120t/120t5/vpn.htm


Shabbir S. Talib
MCSE, CNE, CCNA

Tony wrote:
 
 Hi FOLKS,
 I want use MPLS to make a VPN for my client,is there anyone can
 recommand some material of MPLS to me?some samples is best.
  Thanks and Merry Christmas!
 
 --
  Yours sincerely
 Tony
 
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RE: ISL


Cisco is in business to make money. There is good solid history that
companies make more money by selling higher end things with higher margins.

No Cisco does not want to migrate a wealth of features to their lower end
equipment, because this will cannibalize their sales and their margins.

Yeah it ticks me off as well. I don't want to have to spend major bucks to
equip a study lab. But from a business standpoint, it makes perfect sense.
Besides which, as long as Cisco can do so, that means better job
opportunities for me and my employer.

Chuck

-Original Message-
From:   [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of Ben
Hockenhull
Sent:   Sunday, December 24, 2000 11:51 AM
To: Elias Aggelidis
Cc: [EMAIL PROTECTED]
Subject:Re: ISL

You know, this is one of those things that really annoys me.  The 1750
would be a *perfect* lab router if it could do 802.1q on the fast ethernet
interface.  Is this a hardware limitation or a software limitation?

Of course, add 802.1q to the 1700 and the capabilities of the 1700 begin to
encroach on 2600 territory, so I suspect that the lack of trunking is a
conscious decision intended to distinguish between models.

Ben

At 12:19 PM +0200 12/23/00, Elias Aggelidis wrote:
IT DOES NOT SUPPORT TRUNKS !
Only 26xx and 36xx can do it !


- Original Message -
From: "Mark Krysinski" [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Wednesday, December 20, 2000 3:58 PM
Subject: ISL


 Does anyone know if you can use a 1750 with a 10/100 port in place of a
2600
 series router for ISL?

 Thank you,

 Mark


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FW: Over the internet VPN class

2000-12-26 Thread Rik Guyler


Sorry Chuck, meant to send this to the whole list ;-}

Chuck, a little begging here, but would you mind sharing your sanitized PIX
config for this VPN setup with me?  I have been struggling with a 3-way VPN
setup (DES) and so far, have not been able to make it work.

What I'm trying to do is create a 3-way VPN between 3 PIXes.  I have used
the CCO sample configs, but they appear not to work.  A coworker of mine
also had a similar experience with the same config samples in a prior
attempt to do this.

If anybody has any suggestions on this topic, I'm all ears.  I've gone
through CCO pretty thoroughly (I believe) but haven't been able to find any
other truly revealing information.  My PIX OS is version 5.1(2)

Thanks,

Rik Guyler

-Original Message-
From: Chuck Larrieu [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, December 20, 2000 7:59 PM
To: Cisco Mail List
Subject: Over the internet VPN class


OK, I think I can try this one again.

Through the magic of the internet, I believe I have the means of setting up
my lab pod for some live VPN over the internet instruction.

Weds. December 27, 5:00 p.m. Pacific, 8:00 p.m. eastern. I believe that
comes out to 1:00 a.m. Thursday December 27 GMT ( we're off daylight
savings, aren't we? :- )

I have received tentative concurrence from Dale Holmes that it will be ok to
use the allnet chatsite as the means for running this informal class.
http://www.allnetllc.net/chat/ciscochat.htm

Essentially, I will have IPSec 56 bit DES configured. Folks should be able
to set up VPN tunnels to my routers, and potentially from there reach
eachother.

I will be finishing up my study on this over the weekend, and will send out
another announcement. In the meantime, those who might be interested might
want to look at how you might connect.
I have 2501 routers running 12.1 or so with IPSec DES

Please do not e-mail me yet. All the details are not worked out. But mark
your calendars.

Chuck
--
I am Locutus, a CCIE Lab Proctor. Xx_Brain_dumps_xX are futile. Your life as
it has been is over ( if you hope to pass ) From this time forward, you will
study US!
( apologies to the folks at Star Trek TNG )

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RE: All-in-one CCIE Lab Study Guide where to get it from?

2000-12-26 Thread Westmoreland, Alexis

You may want to try www.addall.com

They will check over thirty sites for the best cost.

-Original Message-
From: Jonathan Hays [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, December 20, 2000 4:30 PM
To: Babar Hameed
Cc: Andrew Lennon; Tim Ross; [EMAIL PROTECTED]
Subject: Re: "All-in-one CCIE Lab Study Guide" where to get it from?

Here is one method of finding books:
1. www.amazon.com
2. Search  Books
3. ccie all-in-one

Babar Hameed wrote:

 Where do i get this "all in one ccie study guide"

 Babar Hameed

 -Original Message-
 From: Andrew Lennon [EMAIL PROTECTED]
 To: Tim Ross [EMAIL PROTECTED], [EMAIL PROTECTED]
 Date: Mon, 18 Dec 2000 15:28:59 -
 Subject: RE: All-in-one CCIE Lab Study Guide: Lab #4

  do you have ip classless enabled?

  Andy

  -Original Message-
  From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
  Tim Ross
  Sent: Monday, December 18, 2000 15:14
  To: [EMAIL PROTECTED]; GroupStudy LAB
  Subject: All-in-one CCIE Lab Study Guide: Lab #4

  I have started going through the labs in the All-in-one Study Guide and
  =
  have a problem with Lab #4. The lab is for an ISDN floating static =
  route. I am using 2 3104's and an AGS+ as a frame_switch. The ISDN port
  =
  can ping the other ISDN port. Both are on the same subnet, 196.1.1.1
  and =
  196.1.1.2. The ISDN line (using a Teltone simulator) dials fine, but
  the =
  Static route does not appear in the routing table. I am using IOS =
  version 11.2 Enterprise on both ISDN routers(3104's, upgraded to run
  IOS =
  11.2 Enterprise). I have entered the route several times and double =
  checked by entries: IP ROUTE 0.0.0.0 0.0.0.0 196.1.1.2 121 , but the =
  route will not appear in my routing table. Anyone ran across this =
  problem? I will probably see what I am overlooking soon, but insight is
  =
  appreciated.

  Thanks,
  Tim

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New York City Study Group

2000-12-26 Thread Rah Sta


To All,

Looking for a New York City study group. Looking for a group of future 
CCNA's, CCNP's and CCIE's who would like to set up a lab. Please let me 
know. PEACE



Raheem
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Re: Over the internet VPN class

2000-12-26 Thread Austin

Are you trying to have a PIX Hub configuration?
Make sure that you have an access list on the Hub that incorporates the
other 2 access lists. Also, use isakmp identity address and not host name.
And then you might want to take a look at your nat (0) statements on all 3
PIXes.

"Rik Guyler" [EMAIL PROTECTED] wrote in message
A15A8664DC88D41197820008C70D908787DA@SMSNTFS2">news:A15A8664DC88D41197820008C70D908787DA@SMSNTFS2...
Sorry Chuck, meant to send this to the whole list ;-}

Chuck, a little begging here, but would you mind sharing your sanitized
PIX
config for this VPN setup with me? I have been struggling with a 3-way
VPN
setup (DES) and so far, have not been able to make it work.

What I'm trying to do is create a 3-way VPN between 3 PIXes. I have used
the CCO sample configs, but they appear not to work. A coworker of mine
also had a similar experience with the same config samples in a prior
attempt to do this.

If anybody has any suggestions on this topic, I'm all ears. I've gone
through CCO pretty thoroughly (I believe) but haven't been able to find
any
other truly revealing information. My PIX OS is version 5.1(2)

Thanks,

Rik Guyler

-Original Message-
From: Chuck Larrieu [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, December 20, 2000 7:59 PM
To: Cisco Mail List
Subject: Over the internet VPN class

OK, I think I can try this one again.

Through the magic of the internet, I believe I have the means of setting
up
my lab pod for some live VPN over the internet instruction.

Weds. December 27, 5:00 p.m. Pacific, 8:00 p.m. eastern. I believe that
comes out to 1:00 a.m. Thursday December 27 GMT ( we're off daylight
savings, aren't we? :- )

I have received tentative concurrence from Dale Holmes that it will be ok
to
use the allnet chatsite as the means for running this informal class.
http://www.allnetllc.net/chat/ciscochat.htm

Essentially, I will have IPSec 56 bit DES configured. Folks should be able
to set up VPN tunnels to my routers, and potentially from there reach
eachother.

I will be finishing up my study on this over the weekend, and will send
out
another announcement. In the meantime, those who might be interested might
want to look at how you might connect.
I have 2501 routers running 12.1 or so with IPSec DES

Please do not e-mail me yet. All the details are not worked out. But mark
your calendars.

Chuck
--
I am Locutus, a CCIE Lab Proctor. Xx_Brain_dumps_xX are futile. Your life
as
it has been is over ( if you hope to pass ) From this time forward, you
will
study US!
( apologies to the folks at Star Trek TNG )

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Strange Dlsw+ behavior

2000-12-26 Thread John Neiberger


Our company purchased the Automated Teller Machine network from another
company and we currently connect to those ATMs using dlsw+.  The layout is
like this:

MyPeer--Myrouter--MyFW-- WAN --TheirFW--TheirRouter--TheirPeer

The remote ATM is connected to their peer router using SDLC.  The dlsw
traffic from that SNA device travels through the remote branch router,  
through the other companies backbone router, through their Checkpoint FW,
through our PIX FW, through our 2501, and then to our 7513 router,  which is
our local peer.

Their remote peers are running 12.0(5) and our 7513 is running 11.2(18).  At
the moment, we have no problems.  And now, the weirdness...

We upgraded our 7513 to 12.0(7)T.  After the upgrade, all of the SNA devices
in our network connected as usual.  However, our mainframe could not see any
of the other company's SNA devices, even though the dlsw peers showed
connected.  This seems really odd.  If the dlsw peers are connected, why
would end-to-end communication still be broken?

So, we downgraded back to 11.2(18) and all was well again.  Our first
thought was that this was some sort of IOS mismatch, so we loaded 12.0(5) on
one of our branch routers and then upgraded the 7513 temporarily for
testing.  This time, our branch machines connected as usual.  This seems to
eliminate the IOS mismatch problem, but not necessarily. 

Could it be that the implementation of dlsw+ in 12.0 establishes
communication differently that in 11.2, and this new process is broken
because of the two firewalls?  This is my only guess at this point, and I've
been reading on CCO all day with no further clues.  

Do any of you have any ideas?  We REALLY need to upgrade our backbone router
soon, but losing connectivity with about 45 automated teller machines is
just not an option.  :-)  That tends to make a lot of different people very
angry, and a few of them employ me.

Any thoughts/tips/educated guesses would be appreciated!

John





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Re: Or Nortel? Re: Easy ML? Re:MCSE OR CCNA

2000-12-26 Thread Raul F. Fernandez


Sammi,

I also have done extensive study of the CISCO IOS and I am studyng for =
the lab as we speak.
I work in an environment where not only do I troubleshoot CISCO( about =
90%) but the rest
is split up mostly by Bay and then a small amount of Motorola FRADS. =
Anyway, BAY at first
was a shock to the system since there IOS is a cross between DOS and MIB =
city. I have gotten
comfortable with MIBs on BAY now, specially doing stat caps, but I have =
also learned to use=20
site manager which is a good tool for Bays. In the process, I went ahead =
and  got the low level cert for=20
Bays(Certified Support Specialist). Basically, I first saw this as a =
curse because I had no interest in anything but CISCO IOS,
but in reality there are many large companies in perticular one =
automotive company
that use all BAY. This experience has gotten me into an environment of =
further learning and
of experimentation. Especially debugging OSPF problems between CISCO =
routers and
BAY. BAY products are good, but on CLI are not perticularly friendly =
unless you are=20
willing to spend time on it. Once you get to learning the CLI is is =
powerful. BAY
has some very good solutions out there. Do not abandon CISCO but
also stive to increase your knowledge of  NORTEL. Anyway, NORTEL does =
not
have all its eggs in routers. CISCO IOS is in my humble opinion =
superior. But NORTEL
has nice stuff cooking up. The person I replaced went to NORTEL and he =
was=20
CISCO savvy ...has passed the written and had extensive troubleshooting
skill being a member of the ATS group here where I work. But he got an
offer he could not refuse...off he went. I believe NORTEL right now is =
doing alot of this
and looking for CISCO folks who are good because they can figure they =
can retrain.
I have no interest myself in NORTEL at this time but after my CCIE is =
done
I dont rule it out. Its an excellent company to work for and an industry =
leader.
I am personally holding out for CISCOhahah will see. Anyway, good =
luck.
I know the guy I replaced, who works for NORTEL, is very happy there and =
he is getting
much training...take advantage of it.

Sincerely,

Raul

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RE: interface stats, physical problem or high utilization?

2000-12-26 Thread Urooj's Hi-speed Internet


You need to look into the following things in this particular scenario:

1.  The output queue drops on the serial interface and if they increase
during the file transfer.

2.  The queueing type configured on the interface such as WFQ, FIFO, etc.

3.  The "buffers" situation in terms of their depletion.

4.  The mix of applications that are being transported over the WAN link.

5.  A Sniffer WAN trace may also prove helpful in this situation.

6.  Observe the "5-minute traffic rate" on the serial interface during a
large file transfer and see if it peaks to 56 Kbps.

7.  Is something driving the interface into "process-switched mode" ?

8.  You can prioritize the application that is being impacted the most by
using any of the queueing mechanisms. However, this decision may have some
adverse effects if not properly researched.

Here I am assuming that the frame PVC has been provisioned correctly and
that it is delivering as per the rated CIR/EIR. This was just to trigger
your thought-process as you have not provided enough information to be able
to correctly pin-point the cause.

Aziz S. Islam

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Kane, Christopher A.
Sent: Tuesday, December 26, 2000 9:59 AM
To: '[EMAIL PROTECTED]'
Subject: interface stats, physical problem or high utilization?


I'm looking for some feedback to a discussion I had with a co-worker. I'm
not looking for troubleshooting assistance with this problem. Rather, I
would like to know if anyone else has experienced a similar situation in
which a utilization problem looks like a physical problem?

We had a customer with a 56k Frame ckt terminating into a Cisco 2524 with an
integrated 4-wire CSU/DSU. The end user was complaining of dropping when
trying to pull large files (3 meg).
The interface stats showed Input errors, CRCs and carrier transitions.
Myself and the telco were able to test end-to-end clean several times. We
then swapped the 2524 for fear that the integrated CSU/DSU was flaky. The
problem remained.

Then my co-worker made a statement that I am having a hard time agreeing
with. He stated that it must be heavy utilization by the end user that is
causing the problem. Could that be? A utilization problem that looks like a
physical problem according to the stats provided by the serial interface?

It's always fun to banter with co-workers. Round-table discussions in front
of the whiteboard are my favorite part of the job.

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RE: interface stats, physical problem or high utilization?

2000-12-26 Thread Urooj's Hi-speed Internet


You need to look into the following things in this particular scenario:

1.  The output queue drops on the serial interface and if they increase
during the file transfer.

2.  The queueing type configured on the interface such as WFQ, FIFO, etc.

3.  The "buffers" situation in terms of their depletion.

4.  The mix of applications that are being transported over the WAN link.

5.  A Sniffer WAN trace may also prove helpful in this situation.

6.  Observe the "5-minute traffic rate" on the serial interface during a
large file transfer and see if it peaks to 56 Kbps.

7.  Is something driving the interface into "process-switched mode" ?

8.  You can prioritize the application that is being impacted the most by
using any of the queueing mechanisms. However, this decision may have some
adverse effects if not properly researched.

Here I am assuming that the frame PVC has been provisioned correctly and
that it is delivering as per the rated CIR/EIR. This was just to trigger
your thought-process as you have not provided enough information to be able
to correctly pin-point the cause.

Aziz S. Islam

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Kane, Christopher A.
Sent: Tuesday, December 26, 2000 9:59 AM
To: '[EMAIL PROTECTED]'
Subject: interface stats, physical problem or high utilization?


I'm looking for some feedback to a discussion I had with a co-worker. I'm
not looking for troubleshooting assistance with this problem. Rather, I
would like to know if anyone else has experienced a similar situation in
which a utilization problem looks like a physical problem?

We had a customer with a 56k Frame ckt terminating into a Cisco 2524 with an
integrated 4-wire CSU/DSU. The end user was complaining of dropping when
trying to pull large files (3 meg).
The interface stats showed Input errors, CRCs and carrier transitions.
Myself and the telco were able to test end-to-end clean several times. We
then swapped the 2524 for fear that the integrated CSU/DSU was flaky. The
problem remained.

Then my co-worker made a statement that I am having a hard time agreeing
with. He stated that it must be heavy utilization by the end user that is
causing the problem. Could that be? A utilization problem that looks like a
physical problem according to the stats provided by the serial interface?

It's always fun to banter with co-workers. Round-table discussions in front
of the whiteboard are my favorite part of the job.

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Problem with Dialers+BRI

2000-12-26 Thread Javier Castillo Alcibar


Hello,

I have a strange problem with my DDR config:

albufera-int#sh users
Line   User   Host(s)  Idle   Location
*130 vty 0idle 00:00:00 190.191.0.1
  BR1/0:1 Sync PPP-   Bundle: Di1
  BR1/0:2 Sync PPP-   Bundle: Di1
  BR1/1:1 Sync PPP-   Bundle: Di1

notice that BRI1/1:2 is not connected because:

albufera-int#debug dialer events
Dial on demand events debugging is on
albufera-int#term monitor
albufera-int#
4d23h: BR1/1 DDR: has 2 ongoing call(s), maximum allowed call(s) 2 on =
pool
5, exceeded max! but only bri1/1:1 is connected =BF?=BF?


any ideas why the router believes that bri1/1.2 is connected too?

Cheers.


Javier Castillo Alc=EDbar - [EMAIL PROTECTED]
Alhambra Systems, S.A. - www.alhsys.com
c/Albasanz 14, 28037 Madrid
Tel.: +34 913041800
Fax.: +34 913273131




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RE: On RFC2328 - OSPF 2


Howard, what is it that folks like us SHOULD be getting out of RFC reading,
in your estimation?

Chuck

-Original Message-
From:   [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of
Howard C. Berkowitz
Sent:   Tuesday, December 26, 2000 7:56 AM
To: [EMAIL PROTECTED]
Subject:Re: On RFC2328 - OSPF 2

First, from the certification perspective, you don't really need to
know the details of the link state route computation algorithm.

Second, Jeff Doyle and Radia Perlman wrote fairly generic
descriptions of what is happening, but not at a detail of precision
that is needed to implement the code.  RFC2328, although no paragon
of clear writing, is at that level.  John Moy's _OSPF: Anatomy of an
IP Routing Protocol_ doesn't go into the computational details,
although his new one, _OSPF Complete Implementation_, appears to do
so (I just got it).

Third, there are differences in the conceptual algorithm and the way
it is implemented. See http://www.nanog.org/mtg-0010/igp.html for a
discussion of concerns before we can reach millisecond convergence in
interior routing protocols.  Briefly, Dijkstra's algorithm is 40
years old, and there are alternatives that produce the same output
but much faster.

Fourth, route computation algorithms, in general, really are complex.
You won't understand them thoroughly without a good knowledge of data
structures and search algorithms, typically an upper undergraduate or
graduate course in computer science.  Thorough understanding of
finite state machines is essential. You will also need to track the
IETF working groups to understand implementation issues.

Believe me, you don't necessarily need to get into all the details.
I'm the routing software architect in my product development group,
and on the one hand need to restrain my hardware colleagues into
getting too deep into algorithms that will be in software, and on the
other hand remember that I may not be the person to write the fastest
code (any more...sigh).

"Katson PN Yeung" [EMAIL PROTECTED] said,

For me, I find Radia Pearlman one is easy to follow


"Jaeheon Yoo" [EMAIL PROTECTED] wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
  Hi,
  Merry Christmas and Happy New Year to All!

  I'm reading RFC 2328, fortunately most part of  it is understandable
  for me. But "16. Calculation of the routing table" part is extremely
  hard to follow. Although Jeff Doyle's explanation of Dijkstra's
  algorithm sounds easy and interesting, why is it so tough in original
  document? Is this essential or required for me to thoroughly
  understand it in its original terms? In that case, are there any plain
  language version of it out there?

   Thanks in advance

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RE: problems configuring a 5500 chasis please help

2000-12-26 Thread Mark Krysinski


Are you sure you can plug the RSM into slot #2.  I remember someone telling
me to have it in slot 12.  Please let me know if this is the case, our 5500
uses slot 2 for a back up sup III module and slot 12 for the RSM with Vip
module.

Hope this helps.

Mark

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
viathin
Sent: Wednesday, December 20, 2000 6:59 PM
To: [EMAIL PROTECTED]
Subject: Re: problems configuring a 5500 chasis please help


I tried plugging in an active switch into  vlan 100 and it still was saying
that the vlan was not active or at least it appeared that way and i couldn't
ping it.

""Brian Gleason"" [EMAIL PROTECTED] wrote in message
91qoiu$1kf$[EMAIL PROTECTED]">news:91qoiu$1kf$[EMAIL PROTECTED]...

 Try plugging in a client machine into each of your vlans.  I had this
 problem with a 6509 and once the client link state came up, the interface
 came up.


 ""viathin"" [EMAIL PROTECTED] wrote in message
 91plqc$2ti$[EMAIL PROTECTED]">news:91plqc$2ti$[EMAIL PROTECTED]...
  I'm having trouble configuring one router was wondering if you could
help
 
  We are configuring a 5500 Chassis with:
   
1) WS X5530 Supervisor Engine (Slot 1)
2) WS X5302 Route Switch Module (Slot 2)
3) WS 5224 Switch ports (24 copper ports)
   
A)
We have defined:
VLAN 100 on 3/1-4
VLAN 200 on 3/5-8
VLAN 300 on 3/9-12
VLAN 500 on 3/21-24
B)
We have created the interfaces on the RSM:
Config Terminal:
1) Interface vlan 100
ip address 192.170.1.1 255.255.255.0
2) Interface vlan 200
ip address 192.170.2.1 255.255.255.0
3) Interface vlan 300
ip address 192.170.3.1 255.255.255.0
5) Interface vlan 500
ip address 192.170.5.1 255.255.255.0
   
Performed a no shutdown command on all interfaces.
   
C)
We implemented "eigrp 1"  as the routing protocol using:
Interface vlan 100
router eigrp 1
network 192.170.1.0
network 192.170.2.0
network 192.170.3.0
network 192.170.5.0
The above was repeated for all vlans (100,200,300,500)
D)
1) Can not ping any vlan interfaces.
2) Performed a "Show Interface" and it shows all interfaces are
down.
   
   
Thanks for looking into this and we appreciate any insight on this
problem.
   
   Craig.
 
 
 
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RE: Over the internet VPN class

2000-12-26 Thread Rik Guyler


Yes, there is a hub involved here, although in my lab, it is just a 3524XL
switch, so I'm not clear on what you mean by "incorporates the other 2
access lists".  If this so called "hub" means something other than what we
would most commonly associate with the term "hub", please clue me in.

The sample config from CCO does indeed use the "isakmp identity address"
statement, so that's covered.  The "nat 0" statement is there with
"access-list 100", which all looks fine to me.  

Attached is one of the sample configs.  All 3 look pretty much the same,
just swap addresses where appropriate.

If you have any other hints or things to check, I appreciate everything!

Rik Guyler

-Original Message-
From: Austin [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, December 26, 2000 11:46 AM
To: [EMAIL PROTECTED]
Subject: Re: Over the internet VPN class


Are you trying to have a PIX Hub configuration?
Make sure that you have an access list on the Hub that incorporates the
other 2 access lists. Also, use isakmp identity address and not host name.
And then you might want to take a look at your nat (0) statements on all 3
PIXes.


"Rik Guyler" [EMAIL PROTECTED] wrote in message
A15A8664DC88D41197820008C70D908787DA@SMSNTFS2">news:A15A8664DC88D41197820008C70D908787DA@SMSNTFS2...
 Sorry Chuck, meant to send this to the whole list ;-}

 Chuck, a little begging here, but would you mind sharing your sanitized
PIX
 config for this VPN setup with me?  I have been struggling with a 3-way
VPN
 setup (DES) and so far, have not been able to make it work.

 What I'm trying to do is create a 3-way VPN between 3 PIXes.  I have used
 the CCO sample configs, but they appear not to work.  A coworker of mine
 also had a similar experience with the same config samples in a prior
 attempt to do this.

 If anybody has any suggestions on this topic, I'm all ears.  I've gone
 through CCO pretty thoroughly (I believe) but haven't been able to find
any
 other truly revealing information.  My PIX OS is version 5.1(2)

 Thanks,

 Rik Guyler

 -Original Message-
 From: Chuck Larrieu [mailto:[EMAIL PROTECTED]]
 Sent: Wednesday, December 20, 2000 7:59 PM
 To: Cisco Mail List
 Subject: Over the internet VPN class


 OK, I think I can try this one again.

 Through the magic of the internet, I believe I have the means of setting
up
 my lab pod for some live VPN over the internet instruction.

 Weds. December 27, 5:00 p.m. Pacific, 8:00 p.m. eastern. I believe that
 comes out to 1:00 a.m. Thursday December 27 GMT ( we're off daylight
 savings, aren't we? :- )

 I have received tentative concurrence from Dale Holmes that it will be ok
to
 use the allnet chatsite as the means for running this informal class.
 http://www.allnetllc.net/chat/ciscochat.htm

 Essentially, I will have IPSec 56 bit DES configured. Folks should be able
 to set up VPN tunnels to my routers, and potentially from there reach
 eachother.

 I will be finishing up my study on this over the weekend, and will send
out
 another announcement. In the meantime, those who might be interested might
 want to look at how you might connect.
 I have 2501 routers running 12.1 or so with IPSec DES

 Please do not e-mail me yet. All the details are not worked out. But mark
 your calendars.

 Chuck
 --
 I am Locutus, a CCIE Lab Proctor. Xx_Brain_dumps_xX are futile. Your life
as
 it has been is over ( if you hope to pass ) From this time forward, you
will
 study US!
 ( apologies to the folks at Star Trek TNG )

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Re: Or Nortel? Re: Easy ML? Re:MCSE OR CCNA

2000-12-26 Thread Kevin_Cullimore



to the extent that it counts, i'd have to vote that mastering
implementations of similar technologies by different vendors and
opportunities to explore interoperability rarely hurt one's opportunities
to begin grasping the miracle by which bit patterns emanating from one
digital computing device magically appear inbound on a remote digital
computing device.

as the most recent post pointed out, it's even easier to identify the
aspects of a routing protocol's behavior that are necessary for standards
conformance and distinguish them from vendor specific quirks. another
example would refer to the differences in both vendor's approach to
incrementing the metric between hops.

it used to be the case that bay was perceived as having a significant
hardware performance edge. it seems as if cisco has made steps towards
bridging that gap.

it used to be the case that cisco was perceived as having a significant
software usability edge. it seems as if cisco has made steps towards
bridging that gap.

in defense of the TI interface, although many cisco counterparts yield
better information, anyone not afraid of unixesque scripting may write 
implement their own commands on the RS platform. additionally, bay CLI
access provides snmp get  set commands.

i can say from experience that preparing for certification by each vendor
has led me to grapple with material to an extent not necessary to pass the
other vendor's tests.

a frustrating part of pursuing the nncse is that the quality of questions
range from thought-provoking and worth the effort to "give me my $1.28
back"

in terms of real-life benefit and the alleged honor and glory of
industry-specific letters by your name, the more vendors the better.

acapitally yours,









"Raul F. Fernandez" [EMAIL PROTECTED]@groupstudy.com on 12/26/2000
12:05:18 PM

Please respond to "Raul F. Fernandez" [EMAIL PROTECTED]

Sent by:  [EMAIL PROTECTED]

To:   [EMAIL PROTECTED]
cc:(bcc: Kevin Cullimore)
Subject:  Re: Or Nortel? Re: Easy ML? Re:MCSE OR CCNA


Sammi,

I also have done extensive study of the CISCO IOS and I am studyng for =
the lab as we speak.
I work in an environment where not only do I troubleshoot CISCO( about =
90%) but the rest
is split up mostly by Bay and then a small amount of Motorola FRADS. =
Anyway, BAY at first
was a shock to the system since there IOS is a cross between DOS and MIB =
city. I have gotten
comfortable with MIBs on BAY now, specially doing stat caps, but I have =
also learned to use=20
site manager which is a good tool for Bays. In the process, I went ahead =
and  got the low level cert for=20
Bays(Certified Support Specialist). Basically, I first saw this as a =
curse because I had no interest in anything but CISCO IOS,
but in reality there are many large companies in perticular one =
automotive company
that use all BAY. This experience has gotten me into an environment of =
further learning and
of experimentation. Especially debugging OSPF problems between CISCO =
routers and
BAY. BAY products are good, but on CLI are not perticularly friendly =
unless you are=20
willing to spend time on it. Once you get to learning the CLI is is =
powerful. BAY
has some very good solutions out there. Do not abandon CISCO but
also stive to increase your knowledge of  NORTEL. Anyway, NORTEL does =
not
have all its eggs in routers. CISCO IOS is in my humble opinion =
superior. But NORTEL
has nice stuff cooking up. The person I replaced went to NORTEL and he =
was=20
CISCO savvy ...has passed the written and had extensive troubleshooting
skill being a member of the ATS group here where I work. But he got an
offer he could not refuse...off he went. I believe NORTEL right now is =
doing alot of this
and looking for CISCO folks who are good because they can figure they =
can retrain.
I have no interest myself in NORTEL at this time but after my CCIE is =
done
I dont rule it out. Its an excellent company to work for and an industry =
leader.
I am personally holding out for CISCOhahah will see. Anyway, good =
luck.
I know the guy I replaced, who works for NORTEL, is very happy there and =
he is getting
much training...take advantage of it.

Sincerely,

Raul

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FAQ, list

Re: Over the internet VPN class

2000-12-26 Thread Austin

Rik,

By hub I meant a Central PIX that terminates the other 2 PIXes.
I did not see any config attached to the last post.

"Rik Guyler" [EMAIL PROTECTED] wrote in message
A15A8664DC88D41197820008C70D908787DC@SMSNTFS2">news:A15A8664DC88D41197820008C70D908787DC@SMSNTFS2...
Yes, there is a hub involved here, although in my lab, it is just a 3524XL
switch, so I'm not clear on what you mean by "incorporates the other 2
access lists". If this so called "hub" means something other than what we
would most commonly associate with the term "hub", please clue me in.

The sample config from CCO does indeed use the "isakmp identity address"
statement, so that's covered. The "nat 0" statement is there with
"access-list 100", which all looks fine to me.

Attached is one of the sample configs. All 3 look pretty much the same,
just swap addresses where appropriate.

If you have any other hints or things to check, I appreciate everything!

Rik Guyler

-Original Message-
From: Austin [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, December 26, 2000 11:46 AM
To: [EMAIL PROTECTED]
Subject: Re: Over the internet VPN class

What I'm trying to do is create a 3-way VPN between 3 PIXes. I have
used
the CCO sample configs, but they appear not to work. A coworker of mine
also had a similar experience with the same config samples in a prior
attempt to do this.

Thanks,

Rik Guyler

-Original Message-
From: Chuck Larrieu [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, December 20, 2000 7:59 PM
To: Cisco Mail List
Subject: Over the internet VPN class

OK, I think I can try this one again.

Through the magic of the internet, I believe I have the means of setting
up
my lab pod for some live VPN over the internet instruction.

Weds. December 27, 5:00 p.m. Pacific, 8:00 p.m. eastern. I believe that
comes out to 1:00 a.m. Thursday December 27 GMT ( we're off daylight
savings, aren't we? :- )

I have received tentative concurrence from Dale Holmes that it will be
ok
to
use the allnet chatsite as the means for running this informal class.
http://www.allnetllc.net/chat/ciscochat.htm

Essentially, I will have IPSec 56 bit DES configured. Folks should be
able
to set up VPN tunnels to my routers, and potentially from there reach
eachother.

I will be finishing up my study on this over the weekend, and will send
out
another announcement. In the meantime, those who might be interested
might
want to look at how you might connect.
I have 2501 routers running 12.1 or so with IPSec DES

Please do not e-mail me yet. All the details are not worked out. But
mark
your calendars.

Chuck
--
I am Locutus, a CCIE Lab Proctor. Xx_Brain_dumps_xX are futile. Your
life
as
it has been is over ( if you hope to pass ) From this time forward, you
will
study US!
( apologies to the folks at Star Trek TNG )

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good salary in london

2000-12-26 Thread steve billy


Hello friends,

Can I request UK professionals to tell me how much
money is enough to live in London? I am not asking for
luxury life. Just enough to live with a family + house
on rent. Will appreciate responses.

Steve.

__
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Yahoo! Shopping - Thousands of Stores. Millions of Products.
http://shopping.yahoo.com/

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Re: About MPLS

2000-12-26 Thread Kevin Welch


Cisco press also has a book out about MPLS VPNs Titled:
   MPLS and VPN Architectures
  ISBN 1-58705-002-1

Hope that helps

-- Kevin

- Original Message -
From: "Talib" [EMAIL PROTECTED]
Newsgroups: groupstudy.cisco
To: [EMAIL PROTECTED]; "Tony" [EMAIL PROTECTED]
Sent: Tuesday, December 26, 2000 8:24 AM
Subject: Re: About MPLS


 Below are two cisco documents.

 http://www.cisco.com/warp/public/cc/so/neso/vvda/ipatm/index.shtml


http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120
t/120t5/vpn.htm

 
 Shabbir S. Talib
 MCSE, CNE, CCNA

 Tony wrote:
 
  Hi FOLKS,
  I want use MPLS to make a VPN for my client,is there anyone can
  recommand some material of MPLS to me?some samples is best.
   Thanks and Merry Christmas!
 
  --
   Yours sincerely
  Tony
 
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RE: Over the internet VPN class


Can't help. I have no PIX'x involved in this one. Just some routers.

I guess I should have been more clear - router to router tunnels.

Chuck


-Original Message-
From:   [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of Rik
Guyler
Sent:   Tuesday, December 26, 2000 8:28 AM
To: Cisco Groupstudy (E-mail)
Subject:FW: Over the internet VPN class

Sorry Chuck, meant to send this to the whole list ;-}

Chuck, a little begging here, but would you mind sharing your sanitized PIX
config for this VPN setup with me?  I have been struggling with a 3-way VPN
setup (DES) and so far, have not been able to make it work.

What I'm trying to do is create a 3-way VPN between 3 PIXes.  I have used
the CCO sample configs, but they appear not to work.  A coworker of mine
also had a similar experience with the same config samples in a prior
attempt to do this.

If anybody has any suggestions on this topic, I'm all ears.  I've gone
through CCO pretty thoroughly (I believe) but haven't been able to find any
other truly revealing information.  My PIX OS is version 5.1(2)

Thanks,

Rik Guyler

-Original Message-
From: Chuck Larrieu [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, December 20, 2000 7:59 PM
To: Cisco Mail List
Subject: Over the internet VPN class


OK, I think I can try this one again.

Through the magic of the internet, I believe I have the means of setting up
my lab pod for some live VPN over the internet instruction.

Weds. December 27, 5:00 p.m. Pacific, 8:00 p.m. eastern. I believe that
comes out to 1:00 a.m. Thursday December 27 GMT ( we're off daylight
savings, aren't we? :- )

I have received tentative concurrence from Dale Holmes that it will be ok to
use the allnet chatsite as the means for running this informal class.
http://www.allnetllc.net/chat/ciscochat.htm

Essentially, I will have IPSec 56 bit DES configured. Folks should be able
to set up VPN tunnels to my routers, and potentially from there reach
eachother.

I will be finishing up my study on this over the weekend, and will send out
another announcement. In the meantime, those who might be interested might
want to look at how you might connect.
I have 2501 routers running 12.1 or so with IPSec DES

Please do not e-mail me yet. All the details are not worked out. But mark
your calendars.

Chuck
--
I am Locutus, a CCIE Lab Proctor. Xx_Brain_dumps_xX are futile. Your life as
it has been is over ( if you hope to pass ) From this time forward, you will
study US!
( apologies to the folks at Star Trek TNG )

_
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,

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RE: Over the internet VPN class

2000-12-26 Thread Mark Krysinski


We use a Pix 520 w/6 Ethernet interfaces and according to the information we
have received, clients can not pass information, via tunnel to tunnel, when
they terminate the tunnel at the same outside address.  You would have to
use another Pix interface to terminate one of the tunnels and then build the
corresponding statements.

Good luck,

Mark

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Austin
Sent: Tuesday, December 26, 2000 1:38 PM
To: [EMAIL PROTECTED]
Subject: Re: Over the internet VPN class


Rik,

By hub I meant a Central PIX that terminates the other 2 PIXes.
I did not see any config attached to the last post.


"Rik Guyler" [EMAIL PROTECTED] wrote in message
A15A8664DC88D41197820008C70D908787DC@SMSNTFS2">news:A15A8664DC88D41197820008C70D908787DC@SMSNTFS2...
 Yes, there is a hub involved here, although in my lab, it is just a 3524XL
 switch, so I'm not clear on what you mean by "incorporates the other 2
 access lists".  If this so called "hub" means something other than what we
 would most commonly associate with the term "hub", please clue me in.

 The sample config from CCO does indeed use the "isakmp identity address"
 statement, so that's covered.  The "nat 0" statement is there with
 "access-list 100", which all looks fine to me.

 Attached is one of the sample configs.  All 3 look pretty much the same,
 just swap addresses where appropriate.

 If you have any other hints or things to check, I appreciate everything!

 Rik Guyler

 -Original Message-
 From: Austin [mailto:[EMAIL PROTECTED]]
 Sent: Tuesday, December 26, 2000 11:46 AM
 To: [EMAIL PROTECTED]
 Subject: Re: Over the internet VPN class


 Are you trying to have a PIX Hub configuration?
 Make sure that you have an access list on the Hub that incorporates the
 other 2 access lists. Also, use isakmp identity address and not host name.
 And then you might want to take a look at your nat (0) statements on all 3
 PIXes.


 "Rik Guyler" [EMAIL PROTECTED] wrote in message
 A15A8664DC88D41197820008C70D908787DA@SMSNTFS2">news:A15A8664DC88D41197820008C70D908787DA@SMSNTFS2...
  Sorry Chuck, meant to send this to the whole list ;-}
 
  Chuck, a little begging here, but would you mind sharing your sanitized
 PIX
  config for this VPN setup with me?  I have been struggling with a 3-way
 VPN
  setup (DES) and so far, have not been able to make it work.
 
  What I'm trying to do is create a 3-way VPN between 3 PIXes.  I have
used
  the CCO sample configs, but they appear not to work.  A coworker of mine
  also had a similar experience with the same config samples in a prior
  attempt to do this.
 
  If anybody has any suggestions on this topic, I'm all ears.  I've gone
  through CCO pretty thoroughly (I believe) but haven't been able to find
 any
  other truly revealing information.  My PIX OS is version 5.1(2)
 
  Thanks,
 
  Rik Guyler
 
  -Original Message-
  From: Chuck Larrieu [mailto:[EMAIL PROTECTED]]
  Sent: Wednesday, December 20, 2000 7:59 PM
  To: Cisco Mail List
  Subject: Over the internet VPN class
 
 
  OK, I think I can try this one again.
 
  Through the magic of the internet, I believe I have the means of setting
 up
  my lab pod for some live VPN over the internet instruction.
 
  Weds. December 27, 5:00 p.m. Pacific, 8:00 p.m. eastern. I believe that
  comes out to 1:00 a.m. Thursday December 27 GMT ( we're off daylight
  savings, aren't we? :- )
 
  I have received tentative concurrence from Dale Holmes that it will be
ok
 to
  use the allnet chatsite as the means for running this informal class.
  http://www.allnetllc.net/chat/ciscochat.htm
 
  Essentially, I will have IPSec 56 bit DES configured. Folks should be
able
  to set up VPN tunnels to my routers, and potentially from there reach
  eachother.
 
  I will be finishing up my study on this over the weekend, and will send
 out
  another announcement. In the meantime, those who might be interested
might
  want to look at how you might connect.
  I have 2501 routers running 12.1 or so with IPSec DES
 
  Please do not e-mail me yet. All the details are not worked out. But
mark
  your calendars.
 
  Chuck
  --
  I am Locutus, a CCIE Lab Proctor. Xx_Brain_dumps_xX are futile. Your
life
 as
  it has been is over ( if you hope to pass ) From this time forward, you
 will
  study US!
  ( apologies to the folks at Star Trek TNG )
 
  _
  FAQ, list archives, and subscription info:
  http://www.groupstudy.com/list/cisco.html
  Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
 
  ,
 
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Re: multicast and the BSCN - a match made in hell?


Here it is:
http://www.isi.edu/in-notes/iana/assignments/multicast-addresses

Dyland Desmarais wrote:
 
 Greetings all
 
 I am moving along nicely and am now beginning to learn about that wonderful
 protocol known as OSPF.
 My question is, the BSCN book from CiscoPress, when explaining OSPF, refers
 to multicast addresses such as 244.0.0.5 (ALLSPFRouter address)
 
 Does this book explain these addresses work, or at this point, should I just
 accept the fact that 244.0.0.5 is the ALLSPFRouter ip.
 
 Is their an online table I can find where the reserved multicast ip's are
 mapped to their function according to industry standard, or is this covered
 later in the CCNP course.
 
 Thanx in advance.
 
 Dyland
 
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-- 

Shabbir S. Talib
MCSE, CNE, CCNA

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CDP

2000-12-26 Thread Kevin Welch


I haven't had much of a chance to look at 2k server, but in my CIPT =
class we were seeing the Win2k Server as a CDP Neighbor on our 6509   =
Can someone confirm that win2k sends CDP packets?

-- Kevin

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Re: is this statement true ??


You mean 512 bits or 64 bytes. A single collision domain must be limited in 
size to make sure that a station sending a minimum-sized frame (512 bits) 
can detect a collision reflecting back from the opposite side of the 
network while the station is still sending a frame. The time is 51.2 
microseconds for 10-Mbps Ethernet and .512 microseconds for 100-Mbps Ethernet.

Priscilla


At 04:11 PM 12/26/00, leonz wrote:
or more precisely, it's the 52 bit-time rule. Where the maximum round-trip
time
in a segment can not exceed the time needed to transmit 52 bits. Ie, if it's
a 10M
network, it has to take less than 5.2 us, if it's 100Mb network, then it'll
be 0.52 us

Leon Chang
CCNP, CCDA


- Original Message -
From: "Priscilla Oppenheimer" [EMAIL PROTECTED]
To: "Bowen, Shawn" [EMAIL PROTECTED]; "Li Song" [EMAIL PROTECTED];
[EMAIL PROTECTED]
Sent: Tuesday, December 26, 2000 1:47 PM
Subject: RE: is this statement true ??


  At 01:07 PM 12/25/00, Bowen, Shawn wrote:
  According to IEEE NO, 100 Meters is the max cable distance for Half or
Full
  100MB Ethernet over TP.  In reality, Yes it will extend the range, The
  reason why is that at full duplex you can not have collisions, and
  collisions are the main reason for the distance limitation (Cross Talk
comes
  into play as well).  The reason behind this is that in the original IEEE
  spec the distance limitation was set so that a single 64Byte packet (the
  smallest) could be transmitted down the line and would collide with
another
  packet before the 64Byte packet header had been completely transmitted,
when
 
  Minor correction: The distance limitation is defined so that if a station
  is transmitting a minimum-size frame (64 bytes) and a collision occurs at
  the other end of the network, the collision will reflect back to the
sender
  while the sender is still sending. If this didn't happen, the sender would
  have stopped monitoring for a collision with its transmission, and would
  not automatically retry. An upper layer would have to retransmit, which
  takes a lot longer.
 
  this does not happen properly you see late collisions, these indicate a
  collision past the preamble header of the packet and indicate a cable
length
  that is to long.
 
  A late collision is one that happens past the preamble and past the first
  64 bytes of the frame. A collision within the first 64 bytes is legal,
  normal, and not late.
 
  Priscilla
 
  If you need to even go close to the 100 Meter mark you
  should consider 100BaseFX or similar.
  
  Shawn
  
  -Original Message-
  From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Li
  Song
  Sent: Monday, December 25, 2000 4:33 AM
  To: [EMAIL PROTECTED]
  Subject: is this statement true ??
  
  "full-duplex can be used over longer distance than
  half-duplex" ??
  what 's your opinion ??
  
  
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  Priscilla Oppenheimer
  http://www.priscilla.com
 
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Re: Confused (was Re: is this statement true ??)


I think what John is getting at is that there is still contention. In his 
example with two clients trying to reach one server, there's contention at 
the switch, and at the server possibly. There's no contention on the medium 
itself. There's only one device trying to send at any one time. The switch 
has its transmit pair and the server has its own transmit pair. If the 
switch has two frames to send to the server, the backup happens at the 
switch. Does that make sense?

Priscilla

At 08:33 AM 12/26/00, Andy Walden wrote:

This is correct. You don't use full duplex if you are competing for
bandwidth, ie, plugged into a hub. But if you are plugged into a switch,
there is only one bandwidth domain between the device and switch and
with nothing competing for the bandwidth on that link so you can go full
duplex.

andy

On Tue, 26 Dec 2000, John lay wrote:

  Priscilla, everybody,
 
  I am confused. Ethernet and FastEthernet uses the CSMA/CD as a channel
  allocation techinque in a shared media access envoiroment.
  Here it comes the confusion, when you are saying that the Full-duplex does
  not support CSMA/CD because the transmit and receive are on different 
 wires.
  This implies that in this case there is no shared media, how come if  you
  have two clients competing to talk to the  same server simultaneously!!
 
  Thanx
 
 
  On Mon, 25 Dec 2000 16:36:11 -0800, Priscilla Oppenheimer wrote:
 
It's true for Ethernet because Ethernet's CSMA/CD media access control
method has strict timing requirements, which result in strict length
restrictions. Half-duplex uses CSMA/CD. Full-duplex does not.
  
I wouldn't say it's true in general, however.
  
Priscilla
  
At 05:32 PM 12/25/00, Li Song wrote:
"full-duplex can be used over longer distance than
half-duplex" ??
what 's your opinion ??


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RE: problems configuring a 5500 chasis please help

2000-12-26 Thread Fugett, Brian K.


Our RSM's are in  slot 8. Check these things:

1: What are your interfaces showing. ie. DOWN DOWN; UP DOWN etc.
The fist and most important thing is to get your intefaces up.

2: You do not need an extra EIGRP process on all VLANS. You need to have
your EIGRP stated in your global config.

Config t
Router EIGRP 1
network 192.170.0.0

 -Original Message-
 From: Mark Krysinski [SMTP:[EMAIL PROTECTED]]
 Sent: Tuesday, December 26, 2000 1:27 PM
 To:   viathin; [EMAIL PROTECTED]
 Subject:  RE: problems configuring a 5500 chasis please help
 
 Are you sure you can plug the RSM into slot #2.  I remember someone
 telling
 me to have it in slot 12.  Please let me know if this is the case, our
 5500
 uses slot 2 for a back up sup III module and slot 12 for the RSM with Vip
 module.
 
 Hope this helps.
 
 Mark
 
 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
 viathin
 Sent: Wednesday, December 20, 2000 6:59 PM
 To: [EMAIL PROTECTED]
 Subject: Re: problems configuring a 5500 chasis please help
 
 
 I tried plugging in an active switch into  vlan 100 and it still was
 saying
 that the vlan was not active or at least it appeared that way and i
 couldn't
 ping it.
 
 ""Brian Gleason"" [EMAIL PROTECTED] wrote in message
 91qoiu$1kf$[EMAIL PROTECTED]">news:91qoiu$1kf$[EMAIL PROTECTED]...
 
  Try plugging in a client machine into each of your vlans.  I had this
  problem with a 6509 and once the client link state came up, the
 interface
  came up.
 
 
  ""viathin"" [EMAIL PROTECTED] wrote in message
  91plqc$2ti$[EMAIL PROTECTED]">news:91plqc$2ti$[EMAIL PROTECTED]...
   I'm having trouble configuring one router was wondering if you could
 help
  
   We are configuring a 5500 Chassis with:

 1) WS X5530 Supervisor Engine (Slot 1)
 2) WS X5302 Route Switch Module (Slot 2)
 3) WS 5224 Switch ports (24 copper ports)

 A)
 We have defined:
 VLAN 100 on 3/1-4
 VLAN 200 on 3/5-8
 VLAN 300 on 3/9-12
 VLAN 500 on 3/21-24
 B)
 We have created the interfaces on the RSM:
 Config Terminal:
 1) Interface vlan 100
 ip address 192.170.1.1 255.255.255.0
 2) Interface vlan 200
 ip address 192.170.2.1 255.255.255.0
 3) Interface vlan 300
 ip address 192.170.3.1 255.255.255.0
 5) Interface vlan 500
 ip address 192.170.5.1 255.255.255.0

 Performed a no shutdown command on all interfaces.

 C)
 We implemented "eigrp 1"  as the routing protocol using:
 Interface vlan 100
 router eigrp 1
 network 192.170.1.0
 network 192.170.2.0
 network 192.170.3.0
 network 192.170.5.0
 The above was repeated for all vlans (100,200,300,500)
 D)
 1) Can not ping any vlan interfaces.
 2) Performed a "Show Interface" and it shows all interfaces are
 down.


 Thanks for looking into this and we appreciate any insight on this
 problem.

Craig.
  
  
  
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Re: Cisco Certification Digest V2 #902

2000-12-26 Thread Daniel Keller


I will be on vacation until January 8 and out of pager and cell phone range.  For all 
network related issues please contact our Network Operations Center at 800-610-4684.

Dan Keller

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RE: problems configuring a 5500 chasis please help

2000-12-26 Thread Brant Stevens

I've always put the RSM in Slot 3...  leaves slot 2 open for a redundant
sup...

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Mark Krysinski
Sent: Tuesday, December 26, 2000 1:27 PM
To: viathin; [EMAIL PROTECTED]
Subject: RE: problems configuring a 5500 chasis please help

Are you sure you can plug the RSM into slot #2.  I remember someone telling
me to have it in slot 12.  Please let me know if this is the case, our 5500
uses slot 2 for a back up sup III module and slot 12 for the RSM with Vip
module.

Hope this helps.

Mark

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
viathin
Sent: Wednesday, December 20, 2000 6:59 PM
To: [EMAIL PROTECTED]
Subject: Re: problems configuring a 5500 chasis please help

I tried plugging in an active switch into  vlan 100 and it still was saying
that the vlan was not active or at least it appeared that way and i couldn't
ping it.

""Brian Gleason"" [EMAIL PROTECTED] wrote in message
91qoiu$1kf$[EMAIL PROTECTED]">news:91qoiu$1kf$[EMAIL PROTECTED]...

 Try plugging in a client machine into each of your vlans.  I had this
 problem with a 6509 and once the client link state came up, the interface
 came up.

 ""viathin"" [EMAIL PROTECTED] wrote in message
 91plqc$2ti$[EMAIL PROTECTED]">news:91plqc$2ti$[EMAIL PROTECTED]...
  I'm having trouble configuring one router was wondering if you could
help

  We are configuring a 5500 Chassis with:

1) WS X5530 Supervisor Engine (Slot 1)
2) WS X5302 Route Switch Module (Slot 2)
3) WS 5224 Switch ports (24 copper ports)

A)
We have defined:
VLAN 100 on 3/1-4
VLAN 200 on 3/5-8
VLAN 300 on 3/9-12
VLAN 500 on 3/21-24
B)
We have created the interfaces on the RSM:
Config Terminal:
1) Interface vlan 100
ip address 192.170.1.1 255.255.255.0
2) Interface vlan 200
ip address 192.170.2.1 255.255.255.0
3) Interface vlan 300
ip address 192.170.3.1 255.255.255.0
5) Interface vlan 500
ip address 192.170.5.1 255.255.255.0

Performed a no shutdown command on all interfaces.

C)
We implemented "eigrp 1"  as the routing protocol using:
Interface vlan 100
router eigrp 1
network 192.170.1.0
network 192.170.2.0
network 192.170.3.0
network 192.170.5.0
The above was repeated for all vlans (100,200,300,500)
D)
1) Can not ping any vlan interfaces.
2) Performed a "Show Interface" and it shows all interfaces are
down.

Thanks for looking into this and we appreciate any insight on this
problem.

   Craig.

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DHCP server and IP Nat On 2621

2000-12-26 Thread muhammad hafiz


Hi all,

Could any one send me the following configuration:

1)I want to make DHCP server on 2621.

2) I have 2621 router and I want to do the  IP Nating
on e0, the scenario is 


Switchrouter (2621)|switch router---Internet
My site   client site

2621 port e0 to client switch

public ip is 130.0.0.x
dhcp server ip 130.0.0.x
our ip 192.168.0.x

pl send me step by step configuration ASAP.

Rashid


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RE: CDP


A search of the RFC index came up with something interesting - RFC 2701 -
Nortel multilink and multinode of PPP. Don't have time to read to see if
this is something similar to CDP

Searches on CDP came up empty.

Searches on "Cisco" ( think that someone from Cisco would have written such
an RFC ) came up with nothing resembling CDP, but did reveal HSRP - RFC 2281

Some kind of CDP would certainly be useful in a multivendor environment.

Chuck

-Original Message-
From:   [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of
Kevin Welch
Sent:   Tuesday, December 26, 2000 11:02 AM
To: [EMAIL PROTECTED]
Subject:Re: CDP

Nevermind... I found it on cisco's web site.  Aparently Cisco created a =
CDP driver for Win2k and call managerI was really hoping that =
someone jumped on the CDP bandwagon...  I remember reading that cisco =
published a RFC or IETF draft on CDP trying make it an open standard, =
but I have not been able to locate such a document.

--- Kevin
  - Original Message -=20
  From: Kevin Welch=20
  To: [EMAIL PROTECTED]=20
  Sent: Tuesday, December 26, 2000 10:57 AM
  Subject: CDP


  I haven't had much of a chance to look at 2k server, but in my CIPT =
class we were seeing the Win2k Server as a CDP Neighbor on our 6509   =
Can someone confirm that win2k sends CDP packets?

  -- Kevin

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Re: DHCP server and IP Nat On 2621

2000-12-26 Thread Greg Reaume


No offense intended, but whatever happened to good old fashioned RTFM.  :)

When I had to implement a config such as you state, it took me approx. 5
minutes to find an information source on CCO and about 1 hour to get it
setup and to work out my mistakes.

I think that the lessons learned by going through the steps and thinking for
yourself are much more valueable than getting a "quick fix" from a
newsgroup.  What if you have problems and nobody will troubleshoot them for
you?  You will not truly understand the technology or it's implementation,
and you will be dead in the water.  You'll just end up having to go through
the same steps after to learn about it as you should've in the first place.

Try starting with a search for EasyIP (Phase 2), DHCP Server, or NAT on CCO.

Good luck, happy hunting.

Greg


"muhammad hafiz" [EMAIL PROTECTED] wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
 Hi all,

 Could any one send me the following configuration:

 1)I want to make DHCP server on 2621.

 2) I have 2621 router and I want to do the  IP Nating
 on e0, the scenario is


 Switchrouter (2621)|switch router---Internet
 My site   client site

 2621 port e0 to client switch

 public ip is 130.0.0.x
 dhcp server ip 130.0.0.x
 our ip 192.168.0.x

 pl send me step by step configuration ASAP.

 Rashid


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Re: Or Nortel? Re: Easy ML? Re:MCSE OR CCNA

2000-12-26 Thread Bradley J. Wilson


Keep in mind that Nortel actually has *two* CLIs on their routers: the TI
(the traditional CLI) and now the BCC (Bay Command Console, or Blatant Cisco
Copy if you prefer, although it's quite a misnomer).  The BCC was developed
for two reasons: one, to make Cisco people more comfy with Bay routers; and
two, because their GUI, Site Manager (or Site Mangler, which is *not* a
misnomer) stinks.  As far as I'm concerned, the BCC is a few steps ahead of
Cisco's CLI.  It's much more user-friendly, and offers a more logical view
of the elements of the router's configuration.  It's only available with
BayRS 12.00 and above, but if you're ever in a Bay environment, check it out
(type "bcc" at the TI prompt).



- Original Message -
From: [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Tuesday, December 26, 2000 1:11 PM
Subject: Re: Or Nortel? Re: Easy ML? Re:MCSE OR CCNA

snip

in defense of the TI interface, although many cisco counterparts yield
better information, anyone not afraid of unixesque scripting may write 
implement their own commands on the RS platform. additionally, bay CLI
access provides snmp get  set commands.



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OSPF Virtual Link.

2000-12-26 Thread Manishkumar Patel


SEE attached Figure

Consider the above OSPF network. You have configured a virtual path to co=
nnect
Area 3 with Area 0. What is your assessment of this network? =


 1.The network will work. However, you must configure a second virtual li=
nk
through router B to ensure there are no routing loops. =


2.The network will not work. Area 3 must be directly connected to Area 0.=
 =


3. The network will work properly with no redundant hops. =


4. network will work. However, it contains sub-optimal routing as packets=
 from
router D to router C must transit router A =


5. network will not work. A routing loop exists as packets destined for r=
outer
C from router D must pass through router C twice.
 =

 =

 =

 =

Thanks in advance.
Regards
MK
 =



Get free email and a permanent address at http://www.netaddress.com/?N=3D=
1

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Re: BCRAN COLT Question

2000-12-26 Thread Jim Erickson


Remember that the COLT questions are ones that didn't make the final cut on
the actual exams. Either because they were wrong, worded funny, too
difficult, or whatever. I personally wouldn't use the COLT exams as
indicators of my level of knowledge for a particular exam, but instead as a
general guide to the types of questions, and the manner in which they are
asked - "Cisco-speak", if you will. If you want something to measure your
knowledge level, and to point out areas in which you need futher study, grab
the Boson tests.

---JRE---

[EMAIL PROTECTED] wrote in message
news:[EMAIL PROTECTED]
.net...
 I'm preparing for the BCRAN exam that I plan on taking
 at the end of the month. I've run across a question in
 Cisco's COLT that has an answer--according to COLT--
 that I don't agree with.  Before the replies fly about
 the quality of the COLT, I did see the thread a while
 back about the quality of the questions.  I've found
 some of their questions to be useful as long as I verify
 the answer ( the question) in the official Cisco press
 book or at CCO.  Here's the question:

 Question 16 of 44.
 Which of the following is considered the primary part of
 the dialer profile?

 A. dialer pool

 B. dialer interface

 C. physical interface

 D. mapclass

 COLT's answer was A.  In reading the Cisco press book,
 there is nothing that would lead me to a direct answer.
 However, I propose that it is B simply because it's what
 defines all of the configuration characteristics
 specific to a destination (page 240 of my book).  Any
 thoughts on this?

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FW: Over the internet VPN class

2000-12-26 Thread Rik Guyler


Whoops...feel like a "rookie" now!  ;-}

PS Watch the word wrap on the text file.  It has some rather long
statements.

Thanks!

Rik

-Original Message-
From: Rik Guyler 
Sent: Tuesday, December 26, 2000 1:21 PM
To: Cisco Groupstudy (E-mail)
Cc: '[EMAIL PROTECTED]'
Subject: RE: Over the internet VPN class


Yes, there is a hub involved here, although in my lab, it is just a 3524XL
switch, so I'm not clear on what you mean by "incorporates the other 2
access lists".  If this so called "hub" means something other than what we
would most commonly associate with the term "hub", please clue me in.

The sample config from CCO does indeed use the "isakmp identity address"
statement, so that's covered.  The "nat 0" statement is there with
"access-list 100", which all looks fine to me.  

Attached is one of the sample configs.  All 3 look pretty much the same,
just swap addresses where appropriate.

If you have any other hints or things to check, I appreciate everything!

Rik Guyler

-Original Message-
From: Austin [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, December 26, 2000 11:46 AM
To: [EMAIL PROTECTED]
Subject: Re: Over the internet VPN class


Are you trying to have a PIX Hub configuration?
Make sure that you have an access list on the Hub that incorporates the
other 2 access lists. Also, use isakmp identity address and not host name.
And then you might want to take a look at your nat (0) statements on all 3
PIXes.


"Rik Guyler" [EMAIL PROTECTED] wrote in message
A15A8664DC88D41197820008C70D908787DA@SMSNTFS2">news:A15A8664DC88D41197820008C70D908787DA@SMSNTFS2...
 Sorry Chuck, meant to send this to the whole list ;-}

 Chuck, a little begging here, but would you mind sharing your sanitized
PIX
 config for this VPN setup with me?  I have been struggling with a 3-way
VPN
 setup (DES) and so far, have not been able to make it work.

 What I'm trying to do is create a 3-way VPN between 3 PIXes.  I have used
 the CCO sample configs, but they appear not to work.  A coworker of mine
 also had a similar experience with the same config samples in a prior
 attempt to do this.

 If anybody has any suggestions on this topic, I'm all ears.  I've gone
 through CCO pretty thoroughly (I believe) but haven't been able to find
any
 other truly revealing information.  My PIX OS is version 5.1(2)

 Thanks,

 Rik Guyler

 -Original Message-
 From: Chuck Larrieu [mailto:[EMAIL PROTECTED]]
 Sent: Wednesday, December 20, 2000 7:59 PM
 To: Cisco Mail List
 Subject: Over the internet VPN class


 OK, I think I can try this one again.

 Through the magic of the internet, I believe I have the means of setting
up
 my lab pod for some live VPN over the internet instruction.

 Weds. December 27, 5:00 p.m. Pacific, 8:00 p.m. eastern. I believe that
 comes out to 1:00 a.m. Thursday December 27 GMT ( we're off daylight
 savings, aren't we? :- )

 I have received tentative concurrence from Dale Holmes that it will be ok
to
 use the allnet chatsite as the means for running this informal class.
 http://www.allnetllc.net/chat/ciscochat.htm

 Essentially, I will have IPSec 56 bit DES configured. Folks should be able
 to set up VPN tunnels to my routers, and potentially from there reach
 eachother.

 I will be finishing up my study on this over the weekend, and will send
out
 another announcement. In the meantime, those who might be interested might
 want to look at how you might connect.
 I have 2501 routers running 12.1 or so with IPSec DES

 Please do not e-mail me yet. All the details are not worked out. But mark
 your calendars.

 Chuck
 --
 I am Locutus, a CCIE Lab Proctor. Xx_Brain_dumps_xX are futile. Your life
as
 it has been is over ( if you hope to pass ) From this time forward, you
will
 study US!
 ( apologies to the folks at Star Trek TNG )

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Re: CDP

2000-12-26 Thread Jim Erickson


I believe HP ProCurve 4000/8000 switches support CDP.

Its a start at least.

---JRE---

""Chuck Larrieu"" [EMAIL PROTECTED] wrote in message
000f01c06f71$4408f840$[EMAIL PROTECTED]">news:000f01c06f71$4408f840$[EMAIL PROTECTED]...
 A search of the RFC index came up with something interesting - RFC 2701 -
 Nortel multilink and multinode of PPP. Don't have time to read to see if
 this is something similar to CDP

 Searches on CDP came up empty.

 Searches on "Cisco" ( think that someone from Cisco would have written
such
 an RFC ) came up with nothing resembling CDP, but did reveal HSRP - RFC
2281

 Some kind of CDP would certainly be useful in a multivendor environment.

 Chuck

 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of
 Kevin Welch
 Sent: Tuesday, December 26, 2000 11:02 AM
 To: [EMAIL PROTECTED]
 Subject: Re: CDP

 Nevermind... I found it on cisco's web site.  Aparently Cisco created a =
 CDP driver for Win2k and call managerI was really hoping that =
 someone jumped on the CDP bandwagon...  I remember reading that cisco =
 published a RFC or IETF draft on CDP trying make it an open standard, =
 but I have not been able to locate such a document.

 --- Kevin
   - Original Message -=20
   From: Kevin Welch=20
   To: [EMAIL PROTECTED]=20
   Sent: Tuesday, December 26, 2000 10:57 AM
   Subject: CDP


   I haven't had much of a chance to look at 2k server, but in my CIPT =
 class we were seeing the Win2k Server as a CDP Neighbor on our 6509   =
 Can someone confirm that win2k sends CDP packets?

   -- Kevin

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RE: is this statement true ??

2000-12-26 Thread Howard C. Berkowitz


The title of this thread has been driving me crazy.  Let me offer an 
alternative statement to be evaluated:

"I am lying."

Returning to rationality...

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RE: problems configuring a 5500 chasis please help

2000-12-26 Thread Tony van Ree


Hi,

I thouight a similar one came up a few days ago.

Look at if the WS-X5224 can support etherchannel.  I think you will find "NO" is the 
answer.  This will probably cause the ports not to come up as you might expect.

Go to the www.cisco.com and do a search on the WS-X5224 and check on what it supports. 
 I think it was about the eighth or so paper down in the choices.

Teunis,
Hobart, Tasmania
Australia



On Tuesday, December 26, 2000 at 01:10:49 PM, Fugett. Brian K. wrote:

 Our RSM's are in  slot 8. Check these things:
 
 1: What are your interfaces showing. ie. DOWN DOWN; UP DOWN etc.
 The fist and most important thing is to get your intefaces up.
 
 2: You do not need an extra EIGRP process on all VLANS. You need to have
 your EIGRP stated in your global config.
 
 Config t
 Router EIGRP 1
 network 192.170.0.0
 
  -Original Message-
  From:   Mark Krysinski [SMTP:[EMAIL PROTECTED]]
  Sent:   Tuesday, December 26, 2000 1:27 PM
  To: viathin; [EMAIL PROTECTED]
  Subject:RE: problems configuring a 5500 chasis please help
  
  Are you sure you can plug the RSM into slot #2.  I remember someone
  telling
  me to have it in slot 12.  Please let me know if this is the case, our
  5500
  uses slot 2 for a back up sup III module and slot 12 for the RSM with Vip
  module.
  
  Hope this helps.
  
  Mark
  
  -Original Message-
  From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
  viathin
  Sent: Wednesday, December 20, 2000 6:59 PM
  To: [EMAIL PROTECTED]
  Subject: Re: problems configuring a 5500 chasis please help
  
  
  I tried plugging in an active switch into  vlan 100 and it still was
  saying
  that the vlan was not active or at least it appeared that way and i
  couldn't
  ping it.
  
  ""Brian Gleason"" [EMAIL PROTECTED] wrote in message
  91qoiu$1kf$[EMAIL PROTECTED]">news:91qoiu$1kf$[EMAIL PROTECTED]...
  
   Try plugging in a client machine into each of your vlans.  I had this
   problem with a 6509 and once the client link state came up, the
  interface
   came up.
  
  
   ""viathin"" [EMAIL PROTECTED] wrote in message
   91plqc$2ti$[EMAIL PROTECTED]">news:91plqc$2ti$[EMAIL PROTECTED]...
I'm having trouble configuring one router was wondering if you could
  help
   
We are configuring a 5500 Chassis with:
 
  1) WS X5530 Supervisor Engine (Slot 1)
  2) WS X5302 Route Switch Module (Slot 2)
  3) WS 5224 Switch ports (24 copper ports)
 
  A)
  We have defined:
  VLAN 100 on 3/1-4
  VLAN 200 on 3/5-8
  VLAN 300 on 3/9-12
  VLAN 500 on 3/21-24
  B)
  We have created the interfaces on the RSM:
  Config Terminal:
  1) Interface vlan 100
  ip address 192.170.1.1 255.255.255.0
  2) Interface vlan 200
  ip address 192.170.2.1 255.255.255.0
  3) Interface vlan 300
  ip address 192.170.3.1 255.255.255.0
  5) Interface vlan 500
  ip address 192.170.5.1 255.255.255.0
 
  Performed a no shutdown command on all interfaces.
 
  C)
  We implemented "eigrp 1"  as the routing protocol using:
  Interface vlan 100
  router eigrp 1
  network 192.170.1.0
  network 192.170.2.0
  network 192.170.3.0
  network 192.170.5.0
  The above was repeated for all vlans (100,200,300,500)
  D)
  1) Can not ping any vlan interfaces.
  2) Performed a "Show Interface" and it shows all interfaces are
  down.
 
 
  Thanks for looking into this and we appreciate any insight on this
  problem.
 
 Craig.
   
   
   
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Re: Or Nortel? Re: Easy ML? Re:MCSE OR CCNA

2000-12-26 Thread Kevin_Cullimore



thanks for the insight.

unfortunately, i'm in an environment where all kinds of anguish, fear.
uncertainty and doubt (not to mention resistance, fits and threats) were
raised when Y2K bullies "forced" an upgrade to RS 11.03/9 last year, so i'm
pretty far from offering a perspective on bcc.

i'm glad that vendors are attempting to stay competitive, even if not
economically.

i've heard people claim that one advantage of mastering the IOS cli is that
it makes it easier to work with equipment from smaller vendors since many
of them are either outright copying a cisco cli look and feel or hoping to
get bought by them.

do others on the list agree?








"Bradley J. Wilson" [EMAIL PROTECTED]@groupstudy.com on
12/26/2000 03:02:06 PM

Please respond to "Bradley J. Wilson" [EMAIL PROTECTED]

Sent by:  [EMAIL PROTECTED]

To:   "cisco" [EMAIL PROTECTED]
cc:(bcc: Kevin Cullimore)
Subject:  Re: Or Nortel? Re: Easy ML? Re:MCSE OR CCNA


Keep in mind that Nortel actually has *two* CLIs on their routers: the TI
(the traditional CLI) and now the BCC (Bay Command Console, or Blatant
Cisco
Copy if you prefer, although it's quite a misnomer).  The BCC was developed
for two reasons: one, to make Cisco people more comfy with Bay routers; and
two, because their GUI, Site Manager (or Site Mangler, which is *not* a
misnomer) stinks.  As far as I'm concerned, the BCC is a few steps ahead of
Cisco's CLI.  It's much more user-friendly, and offers a more logical view
of the elements of the router's configuration.  It's only available with
BayRS 12.00 and above, but if you're ever in a Bay environment, check it
out
(type "bcc" at the TI prompt).



- Original Message -
From: [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Tuesday, December 26, 2000 1:11 PM
Subject: Re: Or Nortel? Re: Easy ML? Re:MCSE OR CCNA

snip

in defense of the TI interface, although many cisco counterparts yield
better information, anyone not afraid of unixesque scripting may write 
implement their own commands on the RS platform. additionally, bay CLI
access provides snmp get  set commands.



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| This message may contain confidential and/or privileged |
| information.  If you are not the addressee or authorized to |
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| disclose or take any action based on this message or any|
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Re: is this statement true ??

2000-12-26 Thread Jim Erickson


I personally prefer: "This statement is false."

--
---JRE---

""Howard C. Berkowitz"" [EMAIL PROTECTED] wrote in message
news:p05001900b66eb91b9df9@[63.216.127.98]...
 The title of this thread has been driving me crazy.  Let me offer an
 alternative statement to be evaluated:

 "I am lying."

 Returning to rationality...

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Re: OSPF Virtual Link.

2000-12-26 Thread NeoLink2000


What attached figure? Forget something??

Mark Zabludovsky ~ CCNA, CCDA, 1/2-NP
A HREF="mailto: [EMAIL PROTECTED]"[EMAIL PROTECTED]/A

 "Even if I knew I had only 1 more week to live, I would still schedule 
my CCIE lab. I would just have to work a little harder I guess. After all, 
without any goals in life, I'm dead already."
   ~Mark Zabludovsky~

In a message dated 12/26/00 3:17:25 PM Eastern Standard Time, 
[EMAIL PROTECTED] writes:


 SEE attached Figure
 
 Consider the above OSPF network. You have configured a virtual path to co=
 nnect
 Area 3 with Area 0. What is your assessment of this network? =
 
 
 1.The network will work. However, you must configure a second virtual li=
 nk
 through router B to ensure there are no routing loops. =
 
 
 2.The network will not work. Area 3 must be directly connected to Area 0.=
 =
 
 
 3. The network will work properly with no redundant hops. =
 
 
 4. network will work. However, it contains sub-optimal routing as packets=
 from
 router D to router C must transit router A =
 
 
 5. network will not work. A routing loop exists as packets destined for r=
 outer
 C from router D must pass through router C twice.
 =
 
 =
 
 =
 
 =
 
 Thanks in advance.
 Regards
 MK
 



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RE: CID Beta

2000-12-26 Thread Lou Nelson

I took it on the 13th... I commented on 5 questions and remember that 3 had
bad questions...  One had 3 correct answers and they only wanted two...

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Stull, Cory
Sent: Friday, December 15, 2000 1:38 PM
To: 'Patrick Murphy'; Shane Stockman; [EMAIL PROTECTED]
Subject: RE: CID Beta

I took it this morning.  I was happy with it.  I only got 1 question that
was really bad but for the most part I thought it was almost too easy.  It
was just very very broad range of coverage from VPN, VOICE, to OSPF  EIGRP.

Many topics.  184 questions to sit through is a killer too.  I am pretty
sure I passed it.  If I didn't then I will repost with a different opinion
of the exam. :)

Cory

-Original Message-
From: Patrick Murphy [mailto:[EMAIL PROTECTED]]
Sent: Friday, December 15, 2000 1:14 PM
To: Shane Stockman; [EMAIL PROTECTED]
Subject: Re: CID Beta

I took it a few days back. I didn't study for it much.

I just finished the CCIE written a month or so ago and I relied on much of
the study from that, as well as the fact that I am a Network Designer all
day long...

It was very strange indeed but I was pleased with it, I think I may even
pass it!!

Cisco/Sylvan should hire a proof reader? It's pretty bad when you can't even
get the title right.

Patrick
- Original Message -
From: "Shane Stockman" [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Friday, December 15, 2000 6:45 PM
Subject: CID Beta

 Well I wrote the CID Beta exam earlier today and damn was it crap.My exam
 said Cisco Secure VPN on the top.It seemed like it was a test that was
made
 up of alot of different tests.I did'nt know that Voice and VPN and
numerous
 other non related design topics were part of the new CID.I used the Sybex
 CID book and it barely was enough.I felt more like it was a nail the
sucker
 who thought he was going to save some money on a Beta Exam.

 Any comments from others who have taken this exam
 _
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OSPF virtual link question

2000-12-26 Thread Manish Patel





Consider the above OSPF network. You have configured a virtual path to
connect Area 3 with Area 0. What is your assessment of this network?

 1.   The network will work. However, you must configure a second
virtual link through router B to ensure there are no routing loops.

2. The network will not work. Area 3 must be directly connected to
Area 0.

3.The network will work properly with no redundant hops.

4.network will work. However, it contains sub-optimal routing as
packets from router D to router C must transit router A

5.network will not work. A routing loop exists as packets destined
for router C from router D must pass through router C twice.




Thanks in advance.
Regards
MK




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Re: Cisco Certification Digest V2 #903

2000-12-26 Thread Daniel Keller


I will be on vacation until January 8 and out of pager and cell phone range.  For all 
network related issues please contact our Network Operations Center at 800-610-4684.

Dan Keller

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RE: OSPF virtual link question

Well, it would help immensely if there were a diagram involved. :-

-Original Message-
From:   [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of
Manish Patel
Sent:   Tuesday, December 26, 2000 2:58 PM
To: [EMAIL PROTECTED]
Cc: [EMAIL PROTECTED]
Subject:OSPF virtual link question

Consider the above OSPF network. You have configured a virtual path to
connect Area 3 with Area 0. What is your assessment of this network?

 1.   The network will work. However, you must configure a second
virtual link through router B to ensure there are no routing loops.

2. The network will not work. Area 3 must be directly connected to
Area 0.

3.The network will work properly with no redundant hops.

4.network will work. However, it contains sub-optimal routing as
packets from router D to router C must transit router A

5.network will not work. A routing loop exists as packets destined
for router C from router D must pass through router C twice.

Thanks in advance.
Regards
MK

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RE: CID passed with 839, CCDP complete, details inside

2000-12-26 Thread Robert Padjen


I've commented to Cisco on every single test, going as
far as to include my eMail information in the comment.
Priscilla has tried to contact Cisco as well, and
without success as I understand it. It is unfortunate
that Cisco does not seek out a few of the more active
members of this board to provide Alpha information on
the test and, better yet, acknowledge the fact that
people care enough to comment on the examination. My
fear is that they feel the don't have to, can now
charge for the betas, and still maintain demand in the
industry. I, for one, have seen a definate waining
from enterprise customers for certifications - in
fact, one of my smaller customers wrote a description
stating "No CCIEs" recently under the guise that they
wanted a junior operations person.

Congrats on passing.


--- Lou Nelson [EMAIL PROTECTED] wrote:
 No I have NEVER gotten feedback... Never
 And I have commented on all my CCNA, DA, NP, and DP
 test...  I have pointed
 out a few glaring incorrect answers/questions and a
 few I am pretty sure...
 I also asked on a few questions why ask this... is
 there a point to a CCxx
 knowing how to spell this?
 In the end it is not the contact I want but knowing
 that my comment was read
 and if I was right... the problem addressed.
 
 -Original Message-
 From: [EMAIL PROTECTED]
 [mailto:[EMAIL PROTECTED]]On Behalf Of
 Chuck Larrieu
 Sent: Thursday, December 21, 2000 6:02 PM
 To: Kevin Wigle; Robert Padjen; Scott Brenner;
 Andre' Paree-Huff;
 Cisco@Groupstudy. Com
 Subject: RE: CID passed with 839, CCDP complete,
 details inside
 
 
 I failed the CID first time through, passed it
 second time. On both tests
 there was a particular question, which fell into a
 "security" category ( in
 my mind anyway )  There were 3 wrong answers and one
 right answer. I will go
 to my grave convinced that  there is an error on the
 test, and the real
 question is "which of these is NOT" rather than
 "which of these IS"
 
 BTW - anyone EVER gotten any feedback from Cisco on
 comments made during the
 test on test questions? I didn't think so.
 
 Chuck
 
 
 -Original Message-
 From: [EMAIL PROTECTED]
 [mailto:[EMAIL PROTECTED]] On Behalf Of
 Kevin Wigle
 Sent: Thursday, December 21, 2000 2:51 PM
 To:   Robert Padjen; Scott Brenner; Andre' Paree-Huff;
 Cisco@Groupstudy. Com
 Subject:  Re: CID passed with 839, CCDP complete,
 details inside
 
 Congratulations, another set of initials always
 feels good!
 
 I also believe it is a single question.  I barely
 passed the CID when I took
 it but I got the security question correct.
 
 Couldn't say what it was though many have
 commented on the famous
 security question but no one seems to remember it. 
 I believe it might not
 really be security related but labeled that way.
 
 anyway - congrats!
 
 Kevin Wigle
 
 - Original Message -
 From: "Robert Padjen" [EMAIL PROTECTED]
 To: "Scott Brenner" [EMAIL PROTECTED]; "Andre'
 Paree-Huff"
 [EMAIL PROTECTED]; "Cisco@Groupstudy. Com"
 [EMAIL PROTECTED]
 Sent: Thursday, 21 December, 2000 13:11
 Subject: RE: CID passed with 839, CCDP complete,
 details inside
 
 
  Its a single question, and, I believe, it is not
 the
  one that it would appear to be. By unofficial
 polling
  I'd say 70+% get it 'wrong.'
 
  Congrats.
 
 
  --- Scott Brenner [EMAIL PROTECTED] wrote:
   I took the CID on 12/15 and I received 100% on
 the
   Security section. I have
   been
   trying to remember what question(s) were on
   security, but I can't figure it
   out...
  
  
   Scott Brenner
   CCNP/CCDP
  
  
   -Original Message-
   From: [EMAIL PROTECTED]
   [mailto:[EMAIL PROTECTED]]On Behalf Of
   Andre' Paree-Huff
   Sent: Thursday, December 21, 2000 9:10 AM
   To: Cisco@Groupstudy. Com
   Subject: Re: CID passed with 839, CCDP complete,
   details inside
  
  
   Neal,
  
   I took the CID exam last week and faild by 21
   points. I too received a =
   ZERO on the security and have talked to at least
 5
   people that have =
   taken the cert, some passed some failed but
 everyone
   one of them got a =
   ZERO for security issues.  I agree I wonder if
 this
   was a misprint.
  
   "Neal Rauhauser" [EMAIL PROTECTED] wrote in
   message
   [EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
100 questions, took me 32 of 120 minutes
   allowed, and I walked out
with an 839 and my spiffy new CCDP :-)
   
The exam has the following sections and I've
   listed my scores
   
1 Intro to Internetwork Design62%
2 Campus LAN design62%
3 TCP/IP network design88%
4 desktop protocol design   
 80%
5 WAN design
   76%
6 SNA design
   71%
7 security issues
   0% (!)(more on
this below)
   
   
  
  
  
   Andr=E9 Paree-Huff
   A+, ASE, CCDA, CCNP
   MCSE+I, NET+, I-NET+
   [EMAIL PROTECTED]
   [EMAIL PROTECTED]
   AOL AIM: pareehuff
 
 
 _
 FAQ, list archives,

Re: MCSE OR CCNA

2000-12-26 Thread Rob


ML,
  Your point is well stated, but a little misplaced.  A CCNA is the bottom level cert.
You are comparing it with MCSE and a higher Unix cert.  That is not a fair comparison.
You should compare the MCSE with a CCNP and in the case of the Unix Guru, probably a
CCIE.

  But with that said, I think you have the correct idea by saying that the knowledge of
the server part of the equation will make a network engineer much more valuable.


Rob

ML wrote:

 I would like to reply to this, I have a very good friend that is a UNIX
 guru, makes a ton of cash and is very respected in the industry. Recently he
 did some studying and took the CCNA and passed.  He does not need the cert
 to earn more, mainly because it does not make a difference.  But he did tell
 me that it gave a different perspective on how the network runs and how his
 piece of the pie is affected. I do think that someone that has knowledge of
 servers and admin to include networking even at the basic level makes a
 better technician.  CCNA is a nice deal but not really that great a cert, I
 know plenty of folks that make a much better living as a server tech than a
 CCNA, the CCNA is only one part of a larger picture.  I would easily hire
 someone that has a very good overall knowledge of the network, servers and
 other devices.  Granted that sometimes a specialist is what you want but
 lets face it, folks that can do many things are a better bet.

 My Rant.

 ML
 Manny Akintayo [EMAIL PROTECTED] wrote in message
 [EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
  one has very little to do with the other.
  I would recommend that you try to obtain your CCNA.
  Best of luck
 
  Jide Akintayo
  Adedapo Omisore wrote:
 
   Please I need the advice of somebody in the house.
   I want to start my cisco certification next year, must I have my MCSE
 first
   before moving in to CCNA ? or I can do it directly without bothering
 myself
   with MCSE first.
   Any little advice will be appreciated.
  
   Thank you.
  
 _
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 http://www.hotmail.com.
  
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RE: OSPF virtual link question

2000-12-26 Thread Jason Baker

ummm i think something is missing ? Which above OSP network ?

-Original Message-
From: Manish Patel [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, December 27, 2000 9:58 AM
To: [EMAIL PROTECTED]
Cc: [EMAIL PROTECTED]
Subject: OSPF virtual link question

Consider the above OSPF network. You have configured a virtual path to
connect Area 3 with Area 0. What is your assessment of this network?

 1.   The network will work. However, you must configure a second
virtual link through router B to ensure there are no routing loops.

2. The network will not work. Area 3 must be directly connected to
Area 0.

3.The network will work properly with no redundant hops.

4.network will work. However, it contains sub-optimal routing as
packets from router D to router C must transit router A

5.network will not work. A routing loop exists as packets destined
for router C from router D must pass through router C twice.

Thanks in advance.
Regards
MK

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Re: CCDA exam

2000-12-26 Thread Rob


CCDA: Cisco Certified Design Associate Study Guide -- Todd Lammle(Contributor), et al;

Top-Down Network Design -- Priscilla Oppenheimer;

The Top-Down book is a must.  I suggest anyone who wants to understand the analysis
behind the designing of a network give this book a read.


Rob

Hunt wrote:

 Does anyone knows what books I should get for CCDA exam? Thanks so much
 for your help in advance, and have a happy Merry Christmas!!!

 Hunt   =^o^=

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Re: Easy ML? Re:MCSE OR CCNA

2000-12-26 Thread ML


OK, I did not mean to say that configuring routers and switches is easy in
the literal sense, but I have on many occasions put someone on one, showed
them a book and the help menu and sent them on their way.  True advanced
configs are difficult sometimes.  I guess my real point was that the network
is there to support the devices that run on it.  If you as a Network
engineer have a better understanding of those devices and how they are used,
then I believe that you will become a better network engineer and technical
person.

ML
"Brian Lodwick" [EMAIL PROTECTED] wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
 ML,
   Wait a minute did I read that right? "Configuring routers and switches
are
 easy" I have been reading alot of books that don't seem overly "easy" to
 comprehend on configuring routers and switches. If it was so easy how come
 so many trees have met their doom to Jeff Doyle?
 Maybe easy for you ML, not me buddy.
   I do agree though, it is alot harder to get those flakey Microsoft
 products to work correctly. Make sure you integrate into your learning
how
 to apply patches Adedapo.
   My suggestion is go Network+, Solaris, and Cisco. That would be a nice
 combination. A firm foundation knowledge of networking, a stable server
OS,
 and Cisco of course.

 Brian



 From: "ML" [EMAIL PROTECTED]
 Reply-To: "ML" [EMAIL PROTECTED]
 To: [EMAIL PROTECTED]
 Subject: Re: MCSE OR CCNA
 Date: Thu, 21 Dec 2000 17:24:53 -0700
 
 I would agree with Howard.  It depends on what you want to do, but unless
 your sa easoned Unix dude then you may want to do both.  I think the
 overall
 training the MCSE gives is very helpful in actually designing networks.
 Configuring routers and switches  are easy but knowing where to put them
 and
 how best to place the servers is really the important part.  Don't get me
 wrong,  knowing how to configure and maintain is important for all
network
 devices but knowing the big picture will tend to get you more offers.
This
 is of course only my opinion but this is what I have seen lately and one
of
 my methods for hiring.  I think it is important to know how to do
something
 but I think a good network engineer or designer knows how all the pieces
 fit.  Also the new MCSE is no longer a cake walk, and I have to say after
 taking CCNA, Routing and Switching exams, the SMS 1.2 was the hardest of
 all.
 
 Hope this helps and good luck.
 
 ML
 "Adedapo Omisore" [EMAIL PROTECTED] wrote in message
 [EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
   Please I need the advice of somebody in the house.
   I want to start my cisco certification next year, must I have my MCSE
 first
   before moving in to CCNA ? or I can do it directly without bothering
 myself
   with MCSE first.
   Any little advice will be appreciated.
  
   Thank you.
  
 _
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 http://www.hotmail.com.
  
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how many question on CIT

2000-12-26 Thread Greg Owens





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RE: Confused (was Re: is this statement true ??)


Yup, makes sense.  I can only speak for 3Com on this one, but I believe
Cisco implements similar features.  On a 3Com Corebuilder (as well as their
Workgroup Switches) they use fake collisions as a flow control mechanism.
In other words if there was contention at the server or switch and they
couldn't handle the load then a collision (a JAM) will be sent.  Now, that
said after we all just agreed that collisions can not happen on a full
duplex Ethernet segment:)  If you notice in Cisco texts that Collision
Detection is disabled on full duplex links, this is not true.  Collision
detection is still there, at least on a 5000 and can be simulated by loading
up a server at 10MB FD with a few 100MB FD clients on the other end of the
Cat, you will see this in action.  3Com does the same thing, I thought this
was kinda interesting.

Shawn


-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Priscilla Oppenheimer
Sent: Tuesday, December 26, 2000 2:06 PM
To: Andy Walden; John lay
Cc: [EMAIL PROTECTED]
Subject: Re: Confused (was Re: is this statement true ??)

I think what John is getting at is that there is still contention. In his
example with two clients trying to reach one server, there's contention at
the switch, and at the server possibly. There's no contention on the medium
itself. There's only one device trying to send at any one time. The switch
has its transmit pair and the server has its own transmit pair. If the
switch has two frames to send to the server, the backup happens at the
switch. Does that make sense?

Priscilla

At 08:33 AM 12/26/00, Andy Walden wrote:

This is correct. You don't use full duplex if you are competing for
bandwidth, ie, plugged into a hub. But if you are plugged into a switch,
there is only one bandwidth domain between the device and switch and
with nothing competing for the bandwidth on that link so you can go full
duplex.

andy

On Tue, 26 Dec 2000, John lay wrote:

  Priscilla, everybody,
 
  I am confused. Ethernet and FastEthernet uses the CSMA/CD as a channel
  allocation techinque in a shared media access envoiroment.
  Here it comes the confusion, when you are saying that the Full-duplex
does
  not support CSMA/CD because the transmit and receive are on different
 wires.
  This implies that in this case there is no shared media, how come if
you
  have two clients competing to talk to the  same server
simultaneously!!
 
  Thanx
 
 
  On Mon, 25 Dec 2000 16:36:11 -0800, Priscilla Oppenheimer wrote:
 
It's true for Ethernet because Ethernet's CSMA/CD media access
control
method has strict timing requirements, which result in strict length
restrictions. Half-duplex uses CSMA/CD. Full-duplex does not.
  
I wouldn't say it's true in general, however.
  
Priscilla
  
At 05:32 PM 12/25/00, Li Song wrote:
"full-duplex can be used over longer distance than
half-duplex" ??
what 's your opinion ??


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Re: good salary in london

2000-12-26 Thread netlinesys


It depends how big is the house ,  and location also

about £ 900.00 at least for 2 - 3 bed + bills on top ( this is not in the
center ) . check a site called loot.com for more details .

Good luck


"steve billy" [EMAIL PROTECTED] wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
 Hello friends,

 Can I request UK professionals to tell me how much
 money is enough to live in London? I am not asking for
 luxury life. Just enough to live with a family + house
 on rent. Will appreciate responses.

 Steve.

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 Yahoo! Shopping - Thousands of Stores. Millions of Products.
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Re: good salary in london

2000-12-26 Thread netlinesys


Sorry forgot 2 add to my previous reply , to be in the safe side , u r
talking between £ 2000 - £ 25000 ( this is with the rent )


""netlinesys"" [EMAIL PROTECTED] wrote in message
92bhht$a58$[EMAIL PROTECTED]">news:92bhht$a58$[EMAIL PROTECTED]...
 It depends how big is the house ,  and location also

 about £ 900.00 at least for 2 - 3 bed + bills on top ( this is not in the
 center ) . check a site called loot.com for more details .

 Good luck


 "steve billy" [EMAIL PROTECTED] wrote in message
 [EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
  Hello friends,
 
  Can I request UK professionals to tell me how much
  money is enough to live in London? I am not asking for
  luxury life. Just enough to live with a family + house
  on rent. Will appreciate responses.
 
  Steve.
 
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Just passed CCIE written!

2000-12-26 Thread Scott McClure


Just passed the CCIE written a little while ago.  I was suprised at the lack
of depth on subject.  Of course, there was great breadth of information
covered, but just didn't seem to go into very much detail.  My biggest tip
would be to take your time and read each question carefully.  It really
wasn't all that bad.

Thanks to all who post here.  I haven't been subscribing long, and haven't
really posted a lot of questions, but found the ones that were posted (and
answered) very helpful in the quest for the gold.

Well, a little breather, a couple of beers and start ramping up for the
lab


Scott McClure, MCNE, CCDA, CCNP (+Written)


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Ethernet scaling rules, new title for Howard! ;-)


Ooops, I meant 5.12 microseconds for 100-Mbps. I was rushing off to go 
skiing! This has been a good discursion. Thanks to everyone who 
participated. I don't think Cisco spends enough time teaching people the 
basics of Ethernet. I'm glad to see people are still interested (well, sort 
of interested, anyway.)

Priscilla

At 10:55 AM 12/26/00, Priscilla Oppenheimer wrote:
You mean 512 bits or 64 bytes. A single collision domain must be limited in
size to make sure that a station sending a minimum-sized frame (512 bits)
can detect a collision reflecting back from the opposite side of the
network while the station is still sending a frame. The time is 51.2
microseconds for 10-Mbps Ethernet and .512 microseconds for 100-Mbps Ethernet.

Priscilla


At 04:11 PM 12/26/00, leonz wrote:
 or more precisely, it's the 52 bit-time rule. Where the maximum round-trip
 time
 in a segment can not exceed the time needed to transmit 52 bits. Ie, if it's
 a 10M
 network, it has to take less than 5.2 us, if it's 100Mb network, then it'll
 be 0.52 us
 
 Leon Chang
 CCNP, CCDA
 
 
 - Original Message -
 From: "Priscilla Oppenheimer" [EMAIL PROTECTED]
 To: "Bowen, Shawn" [EMAIL PROTECTED]; "Li Song" [EMAIL PROTECTED];
 [EMAIL PROTECTED]
 Sent: Tuesday, December 26, 2000 1:47 PM
 Subject: RE: is this statement true ??
 
 
   At 01:07 PM 12/25/00, Bowen, Shawn wrote:
   According to IEEE NO, 100 Meters is the max cable distance for Half or
 Full
   100MB Ethernet over TP.  In reality, Yes it will extend the range, The
   reason why is that at full duplex you can not have collisions, and
   collisions are the main reason for the distance limitation (Cross Talk
 comes
   into play as well).  The reason behind this is that in the original IEEE
   spec the distance limitation was set so that a single 64Byte packet (the
   smallest) could be transmitted down the line and would collide with
 another
   packet before the 64Byte packet header had been completely transmitted,
 when
  
   Minor correction: The distance limitation is defined so that if a station
   is transmitting a minimum-size frame (64 bytes) and a collision occurs at
   the other end of the network, the collision will reflect back to the
 sender
   while the sender is still sending. If this didn't happen, the sender 
 would
   have stopped monitoring for a collision with its transmission, and would
   not automatically retry. An upper layer would have to retransmit, which
   takes a lot longer.
  
   this does not happen properly you see late collisions, these indicate a
   collision past the preamble header of the packet and indicate a cable
 length
   that is to long.
  
   A late collision is one that happens past the preamble and past the first
   64 bytes of the frame. A collision within the first 64 bytes is legal,
   normal, and not late.
  
   Priscilla
  
   If you need to even go close to the 100 Meter mark you
   should consider 100BaseFX or similar.
   
   Shawn
   
   -Original Message-
   From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf 
 Of Li
   Song
   Sent: Monday, December 25, 2000 4:33 AM
   To: [EMAIL PROTECTED]
   Subject: is this statement true ??
   
   "full-duplex can be used over longer distance than
   half-duplex" ??
   what 's your opinion ??
   
   
   _
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Re: Strange Dlsw+ behavior

2000-12-26 Thread Kevin Wigle


Just for interest, what is it in 12.0(7)T that you're looking for?

I have noticed, while testing the "T" series that certain other commands -
like ttcp -  are no longer there as compared to a GD version.

While 12.0(5) isn't GD it is also not a "T"

In fact the 12.0(7)T is a Early Deployment Release.

Your previous 11.2(18) was a GD, the "safest" release to run.

So, in my mind, you have moved from GD to ED plus that ED is usually
associated with voice capabilities (T)

I probably would look at 12.0(10) as it is a very stable GD.  However, GD
goes up to 12.0(14)

just wondering...

Kevin


- Original Message -
From: "John Neiberger" [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Tuesday, 26 December, 2000 12:02
Subject: Strange Dlsw+ behavior


 Our company purchased the Automated Teller Machine network from another
 company and we currently connect to those ATMs using dlsw+.  The layout is
 like this:

 MyPeer--Myrouter--MyFW-- WAN --TheirFW--TheirRouter--TheirPeer

 The remote ATM is connected to their peer router using SDLC.  The dlsw
 traffic from that SNA device travels through the remote branch router,
 through the other companies backbone router, through their Checkpoint FW,
 through our PIX FW, through our 2501, and then to our 7513 router,  which
is
 our local peer.

 Their remote peers are running 12.0(5) and our 7513 is running 11.2(18).
At
 the moment, we have no problems.  And now, the weirdness...

 We upgraded our 7513 to 12.0(7)T.  After the upgrade, all of the SNA
devices
 in our network connected as usual.  However, our mainframe could not see
any
 of the other company's SNA devices, even though the dlsw peers showed
 connected.  This seems really odd.  If the dlsw peers are connected, why
 would end-to-end communication still be broken?

 So, we downgraded back to 11.2(18) and all was well again.  Our first
 thought was that this was some sort of IOS mismatch, so we loaded 12.0(5)
on
 one of our branch routers and then upgraded the 7513 temporarily for
 testing.  This time, our branch machines connected as usual.  This seems
to
 eliminate the IOS mismatch problem, but not necessarily.

 Could it be that the implementation of dlsw+ in 12.0 establishes
 communication differently that in 11.2, and this new process is broken
 because of the two firewalls?  This is my only guess at this point, and
I've
 been reading on CCO all day with no further clues.

 Do any of you have any ideas?  We REALLY need to upgrade our backbone
router
 soon, but losing connectivity with about 45 automated teller machines is
 just not an option.  :-)  That tends to make a lot of different people
very
 angry, and a few of them employ me.

 Any thoughts/tips/educated guesses would be appreciated!

 John





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RE: OSPF virtual link question

2000-12-26 Thread Brant Stevens


The network diagram isn't attached, but...  It's 4, in my opinion... (from
brainbench, right?  :)



-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Manish Patel
Sent: Tuesday, December 26, 2000 5:58 PM
To: [EMAIL PROTECTED]
Cc: [EMAIL PROTECTED]
Subject: OSPF virtual link question





Consider the above OSPF network. You have configured a virtual path to
connect Area 3 with Area 0. What is your assessment of this network?

 1.   The network will work. However, you must configure a second
virtual link through router B to ensure there are no routing loops.

2. The network will not work. Area 3 must be directly connected to
Area 0.

3.The network will work properly with no redundant hops.

4.network will work. However, it contains sub-optimal routing as
packets from router D to router C must transit router A

5.network will not work. A routing loop exists as packets destined
for router C from router D must pass through router C twice.




Thanks in advance.
Regards
MK




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Re: CVOICE


"Integrating Voice and Data Networks" by Scott Keagy, Cisco Press, 2000.

At 09:55 AM 12/26/00, Austin wrote:
Can anyone give me some recommended resources to use to prepare for the
CVOICE exam?
How are the Boson Practise Tests for this exam.
All comments appreciated.


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Re: interface stats, physical problem or high utilization?


At 09:59 AM 12/26/00, Kane, Christopher A. wrote:
I'm looking for some feedback to a discussion I had with a co-worker. I'm
not looking for troubleshooting assistance with this problem. Rather, I
would like to know if anyone else has experienced a similar situation in
which a utilization problem looks like a physical problem?

Input errors, CRC errors, and carrier transitions on a WAN link seem like a 
physical problem, and not a utilization problem. Dropped frames would 
indicate a utilization problem.

Since I have Ethernet on the brain, I'm wondering if your co-worker who 
said that high utilization can look like a physical problem was 
over-generalizing? On shared Ethernet, high utilization can indeed look 
like a physical problem. Collisions result in frames with bad CRCs. You 
need to do more analysis to isolate whether the CRCs are a result of high 
utilization or noise, cross-talk, or other physical problems. Do the CRCs 
only occur in runts (64 bytes), for example, which are usually the result 
of a collision?

But on a WAN? I think high utilization versus a physical-layer problem 
would manifest itself differently. On the other hand, high utilization 
could trigger a bug in carrier or your own equipment which trashes frames, 
resulting in CRCs.

What is your utilization, by the way? Is it high when that user is 
downloading large files?

You said you weren't asking for troubleshooting tips, but please do let us 
know if you solved the problem and what the cause turned out to be. Thanks.

Priscilla


We had a customer with a 56k Frame ckt terminating into a Cisco 2524 with an
integrated 4-wire CSU/DSU. The end user was complaining of dropping when
trying to pull large files (3 meg).
The interface stats showed Input errors, CRCs and carrier transitions.
Myself and the telco were able to test end-to-end clean several times. We
then swapped the 2524 for fear that the integrated CSU/DSU was flaky. The
problem remained.

Then my co-worker made a statement that I am having a hard time agreeing
with. He stated that it must be heavy utilization by the end user that is
causing the problem. Could that be? A utilization problem that looks like a
physical problem according to the stats provided by the serial interface?

It's always fun to banter with co-workers. Round-table discussions in front
of the whiteboard are my favorite part of the job.

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User Interfaces (was): Or Nortel? Re: Easy ML? Re:MCSE OR CCNA

2000-12-26 Thread Howard C. Berkowitz


There's an unfortunate tendency for the industry, as a whole, to 
demand Cisco CLI compatibility when it doesn't even make sense: what 
does compatibility to show cache mean when the platform doesn't use a 
cache?

I hate menu-based interfaces, especially "GUI's" that are text menu 
interfaces masquerading as graphic models. I freely admit Site 
Mangler is a not-wonderful example here. Interfaces that have an 
underlying object model can be either textual or graphic.

There are places for both, and there is need for research in many 
aspects.  One thing that the human factors people are discovering is 
there are several distinct requirements for user interfaces. 
High-level interfaces for service provisioning (i.e., across multiple 
devices) make a good deal of sense.  The ITU TMN and IETF POLICY 
initiatives have this notion of service definition as distinct from 
individual element (e.g., router) management.

Another need is for network policy interfaces, which will be expert 
friendly rather than "user" friendly.  These will add productivity 
for thoroughly clueful people doing such things as BGP peering, 
directory-based networking, etc.

Classical CLI's are useful in element provisioning and 
troubleshooting.  If they are fairly line-at-a-time oriented, such as 
IOS, they may be harder to script than more structured languages such 
as JunOS or the GateD configuration language.  The Bay Technician 
Interface is really more of a scripting language than a direct user 
interface, but it does have the advantage of operating on the 
underlying object model in the MIBs.

With the caveat that my orientation is to carriers, there is a 
significant qualitative difference in the kind of interfaces (plural) 
needed to manage thousands of enterprise connections and a relatively 
few desktops.

"Bradley J. Wilson" [EMAIL PROTECTED]  wrote,



Keep in mind that Nortel actually has *two* CLIs on their routers: the TI
(the traditional CLI) and now the BCC (Bay Command Console, or Blatant Cisco
Copy if you prefer, although it's quite a misnomer).  The BCC was developed
for two reasons: one, to make Cisco people more comfy with Bay routers; and
two, because their GUI, Site Manager (or Site Mangler, which is *not* a
misnomer) stinks.  As far as I'm concerned, the BCC is a few steps ahead of
Cisco's CLI.  It's much more user-friendly, and offers a more logical view
of the elements of the router's configuration.  It's only available with
BayRS 12.00 and above, but if you're ever in a Bay environment, check it out
(type "bcc" at the TI prompt).



- Original Message -
From: [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Tuesday, December 26, 2000 1:11 PM
Subject: Re: Or Nortel? Re: Easy ML? Re:MCSE OR CCNA

snip

in defense of the TI interface, although many cisco counterparts yield
better information, anyone not afraid of unixesque scripting may write 
implement their own commands on the RS platform. additionally, bay CLI
access provides snmp get  set commands.

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Re: Just Passed CCIE Written

2000-12-26 Thread Bruce Williams


What did you do to prepare for the CCIE written? Certification Zone, Boson
Tests, etc.


Bruce Williams
[EMAIL PROTECTED]




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gibberish


IEkgc2VlICJiZ3AgY29uZmVkZXJhdGlvbiBwZWVycyAoZGVmaW5lIGFsbCB0aGUgb3RoZXIgYXV0
b25vbW91cyBzeXN0ZW1zIGluIHRoZSBjb25mZWRlcmF0aW9uKSINCiBpbiB0aGUgY2lzY28gZG9j
Lg0KQnV0IEkgdGhpbmsgY29uZmlnIHRoZSBuZWlnaGJvciBhdXRvbm9tb3VzIHdpbGwgd29yayB0
b28uDQpTbyBXaGljaCBvbmUgaXMgYmVzdCBpbiB0aGUgbGFiPw0KDQp6amd1DQoNCg==





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Re: gibberish

2000-12-26 Thread ML


Looks like a Checkpoint license, after three months of waiting for it.

HA HA
Holiday Humor

ML
"Chuck Larrieu" [EMAIL PROTECTED] wrote in message
92btrp$upr$[EMAIL PROTECTED]">news:92btrp$upr$[EMAIL PROTECTED]...

IEkgc2VlICJiZ3AgY29uZmVkZXJhdGlvbiBwZWVycyAoZGVmaW5lIGFsbCB0aGUgb3RoZXIgYXV0

b25vbW91cyBzeXN0ZW1zIGluIHRoZSBjb25mZWRlcmF0aW9uKSINCiBpbiB0aGUgY2lzY28gZG9j

Lg0KQnV0IEkgdGhpbmsgY29uZmlnIHRoZSBuZWlnaGJvciBhdXRvbm9tb3VzIHdpbGwgd29yayB0
 b28uDQpTbyBXaGljaCBvbmUgaXMgYmVzdCBpbiB0aGUgbGFiPw0KDQp6amd1DQoNCg==





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Re: Confused (was Re: is this statement true ??)

2000-12-26 Thread Jeff Kell


"Bowen, Shawn" wrote:
 
 Yup, makes sense.  I can only speak for 3Com on this one, but I believe
 Cisco implements similar features.  On a 3Com Corebuilder (as well as their
 Workgroup Switches) they use fake collisions as a flow control mechanism.
 In other words if there was contention at the server or switch and they
 couldn't handle the load then a collision (a JAM) will be sent.  Now, that
 said after we all just agreed that collisions can not happen on a full
 duplex Ethernet segment:)  If you notice in Cisco texts that Collision
 Detection is disabled on full duplex links, this is not true.  Collision
 detection is still there, at least on a 5000 and can be simulated by loading
 up a server at 10MB FD with a few 100MB FD clients on the other end of the
 Cat, you will see this in action.  3Com does the same thing, I thought this
 was kinda interesting.

If collisions are reported on the Cisco 5000 then forget my following 
diatribe as I don't have time to simulate it (and no testbed 5000, it 
would be the production switch).

You stated (let me repeat it for emphasis)...

 Collision detection is still there, at least on a 5000 and can be
 simulated by loading up a server at 10MB FD with a few 100MB FD
  ^^^
 clients on the other end of the Cat, you will see this in action.

Older switches implement flow control in one of two ways:
* Simulated collisions (not terribly efficient), or
* Extended carrier to indicate busy (assert carrier beyond the length
  of the packet).

With 100Mbps we have varying implementations of the 802.something 
method of the "pause" indicator in the header, and/or the "throttle"
mechanism (in Cisco terminology).  But your example specifically 
indicates 10Mb, which has another variable.

In 10Mb ethernet, many NICs are setup to detect "jabber" -- asserting
carrier longer than the max packet length.  If this is detected, the 
transmit circuit is turned off (ref Siefert, _Gigabit Ethernet_).  

All of the flow controls, as well as the "jabber" detection, can 
result in a variety of line errors.  Only in the "throttle" case does
a Cisco switch continue without logging errors other than throttle
packet counts.  Throttling or pausing is undefined for 10Mb which may
be the corner case you are presenting, depending upon the intelligence
of the NIC in the server.

In a normal case, I would expect discards if you were throwing many
100Mb clients at a 10Mb server connection, after all flow control and
switch store-and-forward buffers had been exhausted.  You can overload
some of the older Catalyst switches (2926 for example) which has 24
ports at 100Mb and 2 uplinks at 100Mb but only 1.2Gb backplane.  If we
ignore the potential overloading of the uplink(s), the switch cannot 
handle the potential load.  The newer 2924XL/3524XLs are more in line
with a 3Gbps backplane and could handle a full (distributed) load, but
still suffer from uplink congestion which is dependent on the buffer
space.  This is less of an issue with a 1000xX uplink but you can 
still, in theory, overload the bandwidth of the switch.  But this is 
true of any vendor's switch, if you oversubscribe the uplink, you can
overload the switch, regardless of flow control, buffer size, etc.

Bottom line, in southern terminology, there ain't no collisions on a 
full-duplex link :-)

Jeff Kell [EMAIL PROTECTED]
Systems/Network Administrator
University of Tennessee at Chattanooga

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Re: Which exam first for CCNP


MO, I took: switching, routing, remote and have support left. Many do routing first, 
but
many say to take the one you are most comfortable with first

M MO wrote:

 Please advice I want to study for my CCNP, Which exam should I do first or
 in which order should the exams be taken.

 MO
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Re: On RFC2328 - OSPF 2

2000-12-26 Thread Peter Van Oene


As Howard might say "what problem are you trying to solve?" 

If you are looking at this for certification purposes, I would say glide lightly over 
areas of a granular nature such as the performance of an SPF algorithm.  For these 
purposes, Jeff or Radia's coverage (more so Jeff's in the case of Cisco) address the 
topic in as much or more detail than required for you to be successful.  However, if 
you truly want to further a deeper understanding of the protocol, I would spend more 
time with documents of this nature and look to some of the references that Howard 
pointed out in a followup msg (particularily John Moy's new title and the IETF-wg 
mailing lists)

Pete


*** REPLY SEPARATOR  ***

On 12/25/2000 at 4:37 PM Jaeheon Yoo wrote:

Hi, 
Merry Christmas and Happy New Year to All!

I'm reading RFC 2328, fortunately most part of  it is understandable
for me. But "16. Calculation of the routing table" part is extremely
hard to follow. Although Jeff Doyle's explanation of Dijkstra's
algorithm sounds easy and interesting, why is it so tough in original
document? Is this essential or required for me to thoroughly
understand it in its original terms? In that case, are there any plain
language version of it out there?

Thanks in advance

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RE: 7505 Reboots randomly Please HELP

2000-12-26 Thread Desai, Inamul


Hello everyone:

Thanks everyone for reply this post.
Cisco tells us it's solid IOS we are running so it's
not IOS issue. They also sent RSP card and flash card
but did not help at all. This is what I get after every 
reboot.
Thank you..

Inamul

7505-Ashow ver
Cisco Internetwork Operating System Software
IOS (tm) RSP Software (RSP-JSV-M), Version 12.0(7)T,  RELEASE SOFTWARE (fc2)
Copyright (c) 1986-1999 by cisco Systems, Inc.
Compiled Mon 06-Dec-99 19:40 by phanguye
Image text-base: 0x60010908, data-base: 0x61356000

ROM: System Bootstrap, Version 5.3.2(3.2) [kmac 3.2], MAINTENANCE INTERIM
SOFTWA
RE
BOOTFLASH: GS Software (RSP-BOOT-M), Version 11.1(10)CA, EARLY DEPLOYMENT
RELEAS
E SOFTWARE (fc1)

7505-A uptime is 2 minutes
System returned to ROM by error - a Software forced crash, PC 0x602DE884
System image file is "slot0:image.new"

cisco RSP1 (R4700) processor with 32768K/2072K bytes of memory.
R4700 CPU at 100Mhz, Implementation 33, Rev 1.0
Last reset from power-on
G.703/E1 software, Version 1.0.
G.703/JT2 software, Version 1.0.
X.25 software, Version 3.0.0.
SuperLAT software (copyright 1990 by Meridian Technology Corp).
Bridging software.
TN3270 Emulation software.
Primary Rate ISDN software, Version 1.1.
Chassis Interface.
1 MIP controller (2 T1).
1 VIP2 controller (1 FastEthernet).
1 FastEthernet/IEEE 802.3 interface(s)
24 Serial network interface(s)
2 Channelized T1/PRI port(s)
125K bytes of non-volatile configuration memory.

20480K bytes of Flash PCMCIA card at slot 0 (Sector size 128K).
16384K bytes of Flash PCMCIA card at slot 1 (Sector size 128K).
8192K bytes of Flash internal SIMM (Sector size 256K).
Configuration register is 0x102
-Original Message-
From: Pradeep Kumar [mailto:[EMAIL PROTECTED]]
Sent: Monday, December 25, 2000 4:21 AM
To: [EMAIL PROTECTED]; [EMAIL PROTECTED]
Cc: [EMAIL PROTECTED]
Subject: Re: 7505 Reboots randomly Please HELP


Looks more like a Software issue / memory issue. 
-Pradeep



-Original Message-
From:Anil Yadav [EMAIL PROTECTED]
Sent:Sat, 23 Dec 2000 09:37:22 +0500 (GMT+0500)
To:  [EMAIL PROTECTED]
CC:  [EMAIL PROTECTED]
Subject: Re: 7505 Reboots randomly Please HELP



this is what I got on cisco site..




Error Message
%DBUS-3-SW_NOTRDY: DBUS software not ready after [chars], elapsed [int],
status
0x[hex]

ExplanationAn interface processor failed to come online after being
reset. A software or hardware error occurred.

Recommended ActionCopy the error message exactly as it appears on the
console or in the system log. Issue the
show tech-support command to gather data that may provide information to
determine the nature of the error. If
you cannot determine the nature of the error from the error message text
or from the show tech-support output, call
your Cisco technical support representative and provide the representative
with the gathered information.



HTH
Anil Yadav



On Thu, 21 Dec 2000, Desai, Inamul wrote:

 
 We got 7505 router reboots randomly twice a week or 
 when you write to config file. We gone thru changing 
 VIP card, resetting all cards, resetting mem modules, swapping
 mem modules on VIP card, powering up and down and talked to Cisco. 
 It's running IOS 12.0(7)T with RSM, VIP2 and one PRI module. 
 No matter how many times you cold boot it, it brings all
 enable LEDs except one on fastEthenet card. It does help 
 some time when I reset FLASH cards.
 D u think it's flash cards ?
 
 here is startup info:
 System Bootstrap, Version 5.3.2(3.2) [kmac 3.2], MAINTENANCE INTERIM
 SOFTWARE
 Copyright (c) 1994 by cisco Systems, Inc.
 RSP processor with 131072 Kbytes of main memory


 
 Creading the file into memory...
 Self decompressing the image :
 #


 
 ### [OK]
 %DBUS-3-SW_NOTRDY: DBUS software not ready after HARD RESET, elapsed
12032,
 stat
 us 0x0
 -Traceback= 60192B5C 60195A84 60195B3C 6015444C 601546C8 60128990 600109B0
 %DBUS-3-SW_NOTRDY: DBUS software not ready after HARD_RESET, elapsed
12032,
 stat
 us 0x0
 -Traceback= 60192B5C 60194BA0 60195008 6019845C 600F4E64 600F4ECC 600E9090
 600E9
 298 600EA3B0 600EA39C
 %DBUS-3-SW_NOTRDY: DBUS software not ready after RESET, elapsed 12032,
 status 0x
 40
 -Traceback= 60192B5C 60194EC0 60191AF4 60195054 6019845C 600F4E64 600F4ECC
 600E9
 090 600E9298 600EA3B0 600EA39C
 System Bootstrap, Version 5.3.2(3.2) [kmac 3.2], MAINTENANCE INTERIM
 SOFTWARE
 Copyright (c) 1994 by cisco Systems, Inc.
 RSP processor with 131072 Kbytes of main memory


 
 Creading the file into memory...
 Self decompressing the image :

Re: CIT test


692 to pass and 60 to 70 questions , check out www.brainbuzz.net

[EMAIL PROTECTED] wrote:

 How many questions and time for the CIT test

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Re: Passed CCIE written.


Cingratulation$ Drew, now on to Palo Alto ..

"Maness, Drew" wrote:

 Thanks to the group I finally passed the CCIE written test.  76% is not
 great but it is better than failing.

 Thanks for everyone on this list.

 Regards

 Drew

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Re: CIT test


692 to pass and 60 to 70 questions, 75 minutes , check out www.brainbuzz.net

[EMAIL PROTECTED] wrote:

 How many questions and time for the CIT test

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Re: problems configuring a 5500 chasis please help

2000-12-26 Thread Jeff Kell


Somewhere back in this thread somebody wrote:

   Are you sure you can plug the RSM into slot #2.  I remember 
   someone telling me to have it in slot 12.  Please let me know if 
   this is the case, our 5500 uses slot 2 for a back up sup III 
   module and slot 12 for the RSM with Vip module.

Let's get really hardware geeky for a minute...

The 5500 has three 1.2 (or thereabouts) Gbps backplane buses.  Slots 1-5
can access all three backplanes by themselves *IF* the blade in question
can access all three backplanes.  The 5000 had only one bus and the
blades it supports can go in any slot, but use only one bus.  Only the
newer blades can access multiple buses at the same time.  

The "specialty" of the "bottom" slots (10 or 11 to 13) was for ATM
originally, as they access a separate bus on the backplane dedicated for
ATM.  If you have ATM blades, they go in the bottom.  Period.

As for the RSM, I *think* it can go in any slot.  The maximum bandwidth
supported between the RSM and the Cat is 400Mbps - so that 
in effect it has a "virtual" 4-line fast etherchannel link with the
switch.  But that is it, no faster (for the RSM, newer blades
excluded).  So it can quite comfortably fit on one bus.

The "big five" slots (1-5) should be used for supervisors (the SUP3 and
beyond can hit all three buses) and newer blades like the ones with the
"R" suffix and beyond, which can hit multiple buses.

Jeff Kell [EMAIL PROTECTED]

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Re: About MPLS

2000-12-26 Thread Peter Van Oene


I would add to that RFC 2547 and the more recent modification 2547bis.  

*** REPLY SEPARATOR  ***

On 12/26/2000 at 11:24 AM Talib wrote:

Below are two cisco documents.

http://www.cisco.com/warp/public/cc/so/neso/vvda/ipatm/index.shtml

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120t/120t5/vpn.htm


Shabbir S. Talib
MCSE, CNE, CCNA

Tony wrote:
 
 Hi FOLKS,
 I want use MPLS to make a VPN for my client,is there anyone can
 recommand some material of MPLS to me?some samples is best.
  Thanks and Merry Christmas!
 
 --
  Yours sincerely
 Tony
 
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RE: Confused (was Re: is this statement true ??)


I believe we are saying mostly the same thing.  Your "* Extended carrier to
indicate busy (assert carrier beyond the length of the packet)." Is an
Ethernet JAM signal.  That's the same thing I was saying, though I was
putting it in more layman's terms, it's also what is immediately transmitted
onto the segment after a collision is detected to start the back off
routine.  Cat's will see collisions in this configuration.  I wasn't trying
to start a huge issue over this, merely pointing out to someone something
that I found interesting.
The only reason I took it to any depth was the fact that other than duplex
mismatches a lot of people getting into this field (reading these posts)
haven't ever been exposed to such nuances.  And I also guess I wanted to
point out that the Cisco documentation is not "always" 100% accurate in the
real world. 

Shawn

-Original Message-
From: Jeff Kell [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, December 27, 2000 12:16 AM
To: Bowen, Shawn
Cc: Priscilla Oppenheimer; Andy Walden; John lay; [EMAIL PROTECTED]
Subject: Re: Confused (was Re: is this statement true ??)

"Bowen, Shawn" wrote:

 Yup, makes sense.  I can only speak for 3Com on this one, but I believe
 Cisco implements similar features.  On a 3Com Corebuilder (as well as
their
 Workgroup Switches) they use fake collisions as a flow control mechanism.
 In other words if there was contention at the server or switch and they
 couldn't handle the load then a collision (a JAM) will be sent.  Now, that
 said after we all just agreed that collisions can not happen on a full
 duplex Ethernet segment:)  If you notice in Cisco texts that Collision
 Detection is disabled on full duplex links, this is not true.  Collision
 detection is still there, at least on a 5000 and can be simulated by
loading
 up a server at 10MB FD with a few 100MB FD clients on the other end of the
 Cat, you will see this in action.  3Com does the same thing, I thought
this
 was kinda interesting.

If collisions are reported on the Cisco 5000 then forget my following
diatribe as I don't have time to simulate it (and no testbed 5000, it
would be the production switch).

You stated (let me repeat it for emphasis)...

 Collision detection is still there, at least on a 5000 and can be
 simulated by loading up a server at 10MB FD with a few 100MB FD
  ^^^
 clients on the other end of the Cat, you will see this in action.

Older switches implement flow control in one of two ways:
* Simulated collisions (not terribly efficient), or
* Extended carrier to indicate busy (assert carrier beyond the length
  of the packet).

With 100Mbps we have varying implementations of the 802.something
method of the "pause" indicator in the header, and/or the "throttle"
mechanism (in Cisco terminology).  But your example specifically
indicates 10Mb, which has another variable.

In 10Mb ethernet, many NICs are setup to detect "jabber" -- asserting
carrier longer than the max packet length.  If this is detected, the
transmit circuit is turned off (ref Siefert, _Gigabit Ethernet_). 

All of the flow controls, as well as the "jabber" detection, can
result in a variety of line errors.  Only in the "throttle" case does
a Cisco switch continue without logging errors other than throttle
packet counts.  Throttling or pausing is undefined for 10Mb which may
be the corner case you are presenting, depending upon the intelligence
of the NIC in the server.

In a normal case, I would expect discards if you were throwing many
100Mb clients at a 10Mb server connection, after all flow control and
switch store-and-forward buffers had been exhausted.  You can overload
some of the older Catalyst switches (2926 for example) which has 24
ports at 100Mb and 2 uplinks at 100Mb but only 1.2Gb backplane.  If we
ignore the potential overloading of the uplink(s), the switch cannot
handle the potential load.  The newer 2924XL/3524XLs are more in line
with a 3Gbps backplane and could handle a full (distributed) load, but
still suffer from uplink congestion which is dependent on the buffer
space.  This is less of an issue with a 1000xX uplink but you can
still, in theory, overload the bandwidth of the switch.  But this is
true of any vendor's switch, if you oversubscribe the uplink, you can
overload the switch, regardless of flow control, buffer size, etc.

Bottom line, in southern terminology, there ain't no collisions on a
full-duplex link :-)

Jeff Kell [EMAIL PROTECTED]
Systems/Network Administrator
University of Tennessee at Chattanooga

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RE: Confused (was Re: is this statement true ??)