Re: slash 31 address

[Darren Ward]

Actually I thought the MAC address used by STP was using a well known
MAC but it wasn't actually a Multicast MAC?

Darren

Priscilla Oppenheimer wrote:
> 
> At 03:49 PM 1/24/01, Jim Dixon wrote:
> >Wouldn't that make it layer 2?
> >A bridge then?
> >Broadcast and don't care if I get a response?
> 
> Bridges don't broadcast. They send multicasts for the spanning-tree
> algorithm, but that's not relevant. They forward broadcasts (and other
> frames), but that's not relevant either. We're talking about a single
> subnet that has two devices. The two devices probably aren't bridges. What
> would be the point of connecting two bridges together in one subnet that
> allows only two devices?
> 
> Whether I get a response or not depends on what upper layer I'm using. For
> example, I could use ping to send a message from the first device
> (10.0.0.0/31) to the second device (10.0.0.1/31) on a point-to-point link.
> I should get a response (assuming the operating system would let me
> configure these addresses to start with.)
> 
> If it's two routers on the ends of this point-to-point link, they are
> mostly just forwarding traffic on behalf of other stations. The IP
> addresses of the routers themselves are irrelevant in that case. In fact, I
> could use ip unnumbered, but then I couldn't ping the point-to-point
> interfaces, which makes management a bit harder.
> 
> >Since I can't tell if anyone
> >is actually there, I just know that
> >someone is sending me broadcasts from somewhere on this link.
> 
> What does "somewhere on this link" mean? It's a point-to-point link.
> There's only one other thing besides myself on the link.
> 
> If I yell into a room that has only one person in it, "Hello, I'm trying to
> reach everyone in this room," won't I get an answer? Does it matter that I
> wasn't more precise? No...
> 
> >Correct me if my thinking is in
> >need of more coffee.
> 
> You need more coffee. (or maybe less??) &;-)
> 
> Priscilla
> 
> P.S. Please don't send messages directly to me. Please address them to the
> group. Thanks.
> 
> >Jim :)
> >
> >-Original Message-
> >From: Priscilla Oppenheimer [mailto:[EMAIL PROTECTED]]
> >Sent: Wednesday, January 24, 2001 3:17 PM
> >To: Jeff McCoy; [EMAIL PROTECTED]
> >Subject: Re: slash 31 address
> >
> >
> >Yes, but on a point-to-point link, so what if you use the network number
> >and broadcast address to identify the two nodes? If one station sends to
> >the broadcast address it's not a problem, there's only one other station
> >anyway! I think /31 should be allowed on point-to-point links.
> >
> >Priscilla
> >
> >At 08:22 AM 1/24/01, Jeff McCoy wrote:
> >
> > >Michael...
> > >/30 = 4 address (1st is network number, 2 & 3 host ip's, 4th is broadcast
> > >address)
> > >/31 = 2 address (1st is network number, 2nd is broadcast address)
> > >   no host ip's...this is not useful..
> > >/32 = 1 address (1 host address) i use this for loopbacks
> > >
> > >
> > >""Neil Schneider"" <[EMAIL PROTECTED]> wrote in message
> > >94mool$d33$[EMAIL PROTECTED]">news:94mool$d33$[EMAIL PROTECTED]...
> > > > AFAIK you can only go as far as /30.
> > > >
> > > > Neil Schneider
> > > >
> > > > <[EMAIL PROTECTED]> wrote in message
> > >[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> > > > >
> > > > >
> > > > > Hello good guys of the group, can anyone with the knowledge of ip/31,
> > >help
> > > > me?
> > > > > please.
> > > > >
> > > > > I need to know what it is use for, and how it works, pls.
> > > > >
> > > > > Thanks in advance,
> > > > >
> > > > > Michael Taiwo.
> > > > >
> 
> 
> 
> Priscilla Oppenheimer
> http://www.priscilla.com
> 
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Re: passed CCIE written with a little extra stress

[Darren Ward]

Same thing happened to me in Melbourne.

The test crashed on question 32 or something like that and so I panicked and went out 
to
the front desk and they came in, rebooted it and my test came up on q 32.

So like a fool i hit the previous button to make sure my answer was there and sure
enough it was so happier I hit next and ... crash # 2!

Slightly put off I went back out to the front desk and they rebooted it again but this
time they warned me not to use the previous button but use the marked questions at the
end of the exam to review.

Needless to say the couple of other people in the test room smirked a bit, but then
again they were only doing Microsoft exams so what do I care what they think :-P

Still I passed at the end of it but boy was that something I didn't need during the
written!

Darren Ward
PGradCS-CCNP-CCDP-MCP

Francisco Muniz wrote:

> It happened to me as well, back at Networkers. However they just
> ALT-CTRL-DEL'ed the machine and it came back with my half test to
> complete. I'd already passed away on the of the keyboard, and so
> couldn't finish it :-) just kidding, I did pass, and boy I'm happy!
>
> Frank.
>
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Re: CCIE TroubleShooting Part

[Darren Ward]

Actually there was an Interview with the head of the CCIE Program online at one of the
prep sites and he stated that you can expect one of two things:

1) Your existing Network has errors introduced into it.
2) A New broken Network has been downloaded onto you network

So both are possible, remember this portion of the test is for your ability to 
logically
troubleshoot pregressively and document your findings.

BTW none of this is against the NDA as I have said it because it's all available from
Cisco Releases or the CCIE Program  info itself

Darren

James Wilson wrote:

> Depends on your paper, and thats going a little beyond the NDA.
>
> At 11:45 PM 23/11/2000 -0800, ShahzaD Ali wrote:
> >Hi there,
> >
> >Is it true you need to troubleshoot entirely  a new scnerio when you are
> >trouble shooting in day 2? AnyOne knows about this?
> >
> >Regards,
> >
> >SchahzaD
>
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Re: Lab router management

[Darren Ward]

If this is a Remote Access Lab it's not a problem.

You'll be using a 2509/2511 or a modular router with an async card as a terminal server
and the students should only have user exec access to this box.

You'll also need an APC MasterSwitch.

Then simply run up a Linux/BSD box and have a perl script to telnet to the terminal
server, try for no password an if that fails tell the MasterSwitch to power cycle the
router and your expect script can continue with a password recovery, erase and reload
for each router/switch.

Of course the logical extension of this is to allow the script to then configure 
default
configs on the lab to save valuable access time.

Darren

Ben Hockenhull wrote:

> A student of mine just came into my office and posed this problem to me:
>
> Given a set of lab routers, where a student is allowed to do anything they
> wish to the router, how can things be set up so that the router is
> automatically restored to a known default configuration at the end of the
> student's session?
>
> My initial response is that there's really no good way to do this, short
> of special boot roms that would somehow intelligently tftpboot.
>
> boot net statements won't work, as the student can remove them.
> config register frobbing won't work, as the student can change the config
> register, and, indeed, might have to do so to practice password recovery.
>
> Given that the student can change config registers, write erase, set
> enable passwords, reload, etc, how do labs manage their routers in these
> situations?  He seemed to think that Cisco Academy has some kind of
> software that helps them with this problem, but I don't see how it's
> possible.
>
> Seems to me that all you can really do is have a staff of people to set
> things right all the time.
>
> Anyone have any ideas?
>
> Ben
>
> --
> Ben Hockenhull
> [EMAIL PROTECTED]
>
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Fast Ethernet MTU Size

[Darren Ward]

Hi All,

Is it at all possible to raise the MTU size on Fast Ethernet?

I'll give you all a scenario

ATM on one side with an MTU of 4470, fast ethernet connecting the two
routers, Gigabit Ethernet the other side with an MTU of 4470.

How can I raise the MTU of a Full Duplex Fast Ethernet Connection above
1500?

I assume it's not possible when going through switched as they will show
every packet as a giant but in a router to router cross-over connection
I was hoping there was some way to keep the MTU static across the path
rather than force the routers to fragment and re-assemble (of course the
destination re-assembles).

Darren Ward
CCNP, CCDP, CCIE Wannabee

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Re: FS: WAN Switching Manuals

[Darren Ward]

Forgive me but while I don't mind seeing course manuals being resold even though thats
against the resell, I think trying to sell photocopies of course manuals for $300 is
ridiculous let alone illegal.

Pretty silly thing to publicly advertise.

stan wrote:

> Hi
> I am selling these 5 WAN Switching manuals.
>
> 1. ICWS (Installing Cisco WAN Switches)
> Version 1.0, 1997
>
> 2. CWSC (Cisco WAN Switch Configuration)
> Version 1.0, 1997
>
> 3. BSSC (BPX Switch and Service Configuration)
> Version 2.0, 1998
>
> 4. MACC (MGX ATM Concentrator Configuration)
> Version 1.0, 1998
>
> 5. SVIO (Strata View plus installation and Operations)
> Version 2.0, 1998
>
> These are not original manuals, they are xerox copies
>
> $300 for all 5 manuals, shipping is included
>
> Thanks
>
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Re: Fast Ethernet MTU Size

[Darren Ward]

Hi Chuck,

I'm not a 100% sure myself but I believe the delineation is that layer 3
fragmentation is seperate from ATM SAR.

SAR simply takes the layer 3 packet and chops it into 48 byte payloads and
reassembles it at the other end of the ATM link, the actual content of the
payload, the packet itself is irrelevant to that level.

At any rate we have seen sinificant improvements in BGP using an MTU of 4470 on
Gig and OC3 ATM so I want to try and increase the MTU on the link between
another couple of routers.

Darren

Chuck Larrieu wrote:

> Not knowing the ethernet side of things, but I am curious - and MTU of 4470
> on ATM? 53 byte cell size?
>
> I did a cursory search of the IEEE web site but didn't find much.
>
> Chuck
>
> -Original Message-
> From:   [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of
> Darren Ward
> Sent:   Friday, December 01, 2000 7:02 PM
> To: [EMAIL PROTECTED]
> Subject:Fast Ethernet MTU Size
>
> Hi All,
>
> Is it at all possible to raise the MTU size on Fast Ethernet?
>
> I'll give you all a scenario
>
> ATM on one side with an MTU of 4470, fast ethernet connecting the two
> routers, Gigabit Ethernet the other side with an MTU of 4470.
>
> How can I raise the MTU of a Full Duplex Fast Ethernet Connection above
> 1500?
>
> I assume it's not possible when going through switched as they will show
> every packet as a giant but in a router to router cross-over connection
> I was hoping there was some way to keep the MTU static across the path
> rather than force the routers to fragment and re-assemble (of course the
> destination re-assembles).
>
> Darren Ward
> CCNP, CCDP, CCIE Wannabee
>
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MPOA - was Re: Ciscocontent removed from Written/Lab

[Darren Ward]

Correct.

MPOA uses LANE for Intra-ELAN communications therefore if LANE is removed by default
that means MPOA is removed.

Darren Ward

arthurx4 wrote:

> MPOA relies on LANE I believe - from what I remember -- LANE has to be
> configured and operating properly for MPOA to work.
>
> Joe
>
> ""Louie Belt"" <[EMAIL PROTECTED]> wrote in message
> 000401c05b44$3f8f17e0$[EMAIL PROTECTED]">news:000401c05b44$3f8f17e0$[EMAIL PROTECTED]...
> | It is not removed from the written test, only the CCIE lab.  Additionally,
> | there are many other forms of ATM other than LANE.  Specifically, ATM
> PVC's,
> | SVC's, Classic IP (CLIP), and ATM MPOA are still possibilities on the lab,
> | LANE is the only ATM technology that has been removed from the lab.
> |
> | Hope this helps clear up the confusion.
> |
> | John Galt
> |
> |
> | -Original Message-
> | From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
> | Tony van Ree
> | Sent: Thursday, November 30, 2000 7:07 PM
> | To: Chris Larson; [EMAIL PROTECTED]
> | Subject: Re: Ciscocontent removed from Written/Lab
> |
> |
> | Where did this come from.
> |
> | I have just spent the last 48 or so hours beating my head up on the ATM
> LANE
> | stuff.  Maybe I should keep learning it for me.  In a presentation I
> | attended last Monday a Cisco Rep indicated that Cisco are starting to back
> | off on ATM.
> |
> | If I can give ATM the flick that's one less worry.
> |
> | Teunis
> | Hobart, Tasmania
> | Australia
> |
> | On Thursday, November 30, 2000 at 03:24:47 PM, Chris Larson wrote:
> |
> | > Exam Content
> | >
> | >
> | > The Routing and Switching Lab exam tests any feature that can be
> | configured on the equipment in the Equipment List, except as noted below.
> | >
> | > Effective immediately, the following topics have been removed from the
> lab
> | exam content:
> | >
> | >   a.. LAT
> | >   b.. DECnet
> | >   c.. Apollo
> | >   d.. Banyan VINES
> | >   e.. ISO CLNS
> | >   f.. XNS
> | >   g.. ATM LANE
> | >   h.. X.25
> | > Effective February 1, 2001, the following topic will be removed from the
> | lab exam content:
> | >
> | >
> | >   a.. Appletalk
> | >  NOTE: These changes only affect the Routing and Switching Lab exam.
> | Some of the test topics may continue to appear on the Routing and
> Switching
> | Written exam.  Readers are advised to consult the Content Blueprint for
> the
> | Routing and Switching Written exam for a detailed list of topics tested on
> | the written exam.
> | >
> | >
> | >
> | > From
> | >
> | > http://www.cisco.com/warp/public/625/ccie/certifications/routing.html#43
> | >
> | > Although most of you probably already knew that (I didn't)
> | >
> | >
> | >
> |
> |
> | --
> | www.tasmail.com
> |
> |
> | _
> | FAQ, list archives, and subscription info:
> | http://www.groupstudy.com/list/cisco.html
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> |
> | _
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> |
>
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Re: Fast Ethernet MTU Size

[Darren Ward]

I have noticed that on the 12008 I can set the MTU higher but not the 7206VXR?

Since I'm talking about going straight from a 7206VXR to a 12008GSR I assume then all I
should need to do is get a 2FE card for the 7200.

The switch issue doesn't come into this one as mentioned but is a point well taken of
course.

I think I'll try and find the card documentation on CCO and thanks for the reference.

Darren

Hugo _ wrote:

> You need the 2FE port to change the MTU size, but also in the Catalyst you
> need to have the version wich support the feature "jumbo packet" wich permit
> to pass packet greater than 1500.
>
> Hugo
>
> >From: Darren Ward <[EMAIL PROTECTED]>
> >Reply-To: Darren Ward <[EMAIL PROTECTED]>
> >To: [EMAIL PROTECTED]
> >Subject: Fast Ethernet MTU Size
> >Date: Sat, 02 Dec 2000 14:02:06 +1100
> >
> >Hi All,
> >
> >Is it at all possible to raise the MTU size on Fast Ethernet?
> >
> >I'll give you all a scenario
> >
> >ATM on one side with an MTU of 4470, fast ethernet connecting the two
> >routers, Gigabit Ethernet the other side with an MTU of 4470.
> >
> >How can I raise the MTU of a Full Duplex Fast Ethernet Connection above
> >1500?
> >
> >I assume it's not possible when going through switched as they will show
> >every packet as a giant but in a router to router cross-over connection
> >I was hoping there was some way to keep the MTU static across the path
> >rather than force the routers to fragment and re-assemble (of course the
> >destination re-assembles).
> >
> >Darren Ward
> >CCNP, CCDP, CCIE Wannabee
> >
> >_
> >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: Deciphering the default-metric command...

[Darren Ward]

This actually sets the default eigrp metrics to be used to redistribute the routes.

EIGRP needs this or it can't advertise any routes.

You can also however use a route-map to then modify the metrics on a route by route 
basis
if required.

Darren

Frank Wells wrote:

> Just did the Fatkid Basic BGP lab #320.  I am trying to understand why I
> needed the command default-metric 64000 2 225 1 1500 under the eigrp 1
> process on router 4.  I could not advertise the 10.0.0.0 network from
> router4 to the other members of AS 200 until I used it.  I just want to hear
> some explanantions as to why.  What default-metric did this command change ?
>
> Thanks a lot
>
> http://www.fatkid.com/html/320_basic_bgp.html
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Re: anyone has had any contacts with cisco R&D people?

[Darren Ward]

With the diversification of the CCIE Program they simply might be going to include a
CCIE - Campus in the future ;)

Priscilla Oppenheimer wrote:

> Cisco is agnostic with regards to technology and protocols. Cisco attempts
> to implement almost all viable protocols. That's their philosophy. So
> you'll see them implement solutions for customers who want ATM and
> solutions for customers who want SONET in the backbone.
>
> With that said, if your question is about ATM on a campus network, we heard
> recently that they are removing LAN Emulation (LANE) from the CCIE test, so
> that may say something about their direction, or I could be reading too
> much into that decision.
>
> Priscilla
>
> At 07:24 AM 12/2/00, cslx wrote:
> >anyone has had any contacts with cisco R&D people?
> >I want to know which field cisco want focus on in the next decade.
> >IP over ATM switch at the backbone
> >or IP over sonet at the backbone
> >that means for the man or campus network, which one is cisco's prefer choice
> >or has the priority?
> >any1 can foresee the furture of ATM in china, and will it be replaced by
> >using total ip switching over backbone sonet transwmission?
> >I am seriously asking this question.
> >
> >
> >_
> >FAQ, list archives, and subscription info:
> >http://www.groupstudy.com/list/cisco.html
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>
> 
>
> Priscilla Oppenheimer
> http://www.priscilla.com
>
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Re: Speed Tip

[Darren Ward]

Is there a copy of the Lab Rules outside of the Lab itself?

I'd like to read through them before taking it ;)

James Wilson wrote:

> Good tip... but be very very careful -- If you accidently saved this file
> somewhere you would be disqualified immediately as part of the CCIE lab
> rules.
>
> Cheers.
>
> On  0, Tony Olzak <[EMAIL PROTECTED]> wrote:
> > Hard to believe, but most people don't know you can use notepad in the lab. Here's 
>how I do a base config on all my routers:
> >
> > en
> > config t
> > ip classless
> > ip subnet-zero
> > no ip domain-lookup
> > alias exec cb clear ip bgp *
> > alias exec ci clear ip route *
> > alias exec cx clear ipx route *
> > alias exec i show ip route
> > alias exec ix show ipx route
> > alias exec si show ip interface brief
> > alias exec sx show ipx interface brief
> > enable secret cisco
> >
> > line con 0
> > exec-timeout 0 0
> > password cisco
> >
> > line aux 0
> > exec-timeout 0 0
> > password cisco
> >
> > line vty 0 4
> > exec-timeout 0 0
> > password cisco
> >
> > Then at the end just type "hostname " and you are done.
> >
> > Put all this in notepad, copy it, then paste to host while in the terminal program.
> >
> > I couldn't believe how many people tell me they type all this junk at every 
>router. This will save you probably 20 minutes.
> >
> > Tony
> >
>
> --
> [=[ www.cisco.com ]]
>  James Wilson   cisco Systems
>  Customer Service Engineer, I
>  Global On Site Services||||
> ||||
>  Phone : +61-2-8448-7919     
>  Pager : +61-2-9430-6381   ..:||:..:||:..
> [=[ USA +1-800-829-2447 ]=[ Aust 1800-121-531 ]]
>   "I am convinced that life is 10% what happens to me and 90% how I react"
>
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Re: Fast Ethernet MTU Size

[Darren Ward]

Ethernet can indeed run at a higher MTU as our discussion showed, in fact we are 
trying to get hold of some 2FE cards to do just that, we already run MTU4470 on our 
gig to gig links but remember these do not go through any switches but are router to 
router only so fixed MTU ports are avoided.

Now a giant is only detected if the packet was over 4470 not 1500 (Have tested that 
already).

However back to your point, you can't raise a normal ethernet or single port fast 
ethernet card to more than 1500 bytes and most switches don't like a higher MTU either.

Still it is possible, does work and changes the sizes of giants automatically as the 
MTU is modified.

Darren

Tony van Ree wrote:

> Hi all,
>
> I was under the impression that an ethernet frame had a maximum size of 1500 bytes.  
>This did not include the addresses or the FCS.  To increase the MTU beyond that size 
>would indeed create a giant on ethernet.  As it is you will find some devices give an 
>error message when including an ISL header.  (A gig port on a 2984 is a good example) 
> In the case of the 2984 the data still goes through ok but when you get a packet 
>over 1484 bytes an whack it through the port the error rate rises.   Anything small 
>is ok.
>
> It does seem to me that the basic ethernet standards define the max MTU pretty well.
>
> I could however have mis understood all these years.
>
> Thanks,
>
> Teunis,
> Hobart, Tasmania
> Australia.
>
> On Saturday, December 02, 2000 at 12:25:13 AM, Kevin Wigle wrote:
>
> > there is a "mtu" command.
> >
> > In a somewhat similar situation - I had built a circuit using lan emulation
> > that terminated on a bvi on a 7505.
> >
> > The bvi had an ip address and placed into an OSPF area.
> >
> > I'm not aware of the defaults with a router that has both ATM and ethernet
> > but I didn't take notice of the mtu that the bvi had - I assumed that it was
> > just like an ethernet interface
> >
> > On the distant end of the lan emulation was an ordinary router with an
> > ethernet interface and it was also configured into the OSPF area.
> >
> > However, OSPF didn't work.  debugging showed that an adjacency wasn't being
> > formed.
> >
> > Turning up yet more debugging - finally an error about "mtu size not equal"
> > was noticed.
> >
> > sure enough, the bvi had the ATM mtu of 4470..
> >
> > using the mtu command on the bvi interface "mtu 1500", the adjacency formed
> > immediately and all was well.
> >
> > so, my guess would be that a fast ethernet probably has the same "mtu"
> > command, try it out.
> >
> > Kevin Wigle
> >
> > - Original Message -
> > From: "Darren Ward" <[EMAIL PROTECTED]>
> > To: <[EMAIL PROTECTED]>
> > Sent: Friday, 01 December, 2000 22:02
> > Subject: Fast Ethernet MTU Size
> >
> >
> > > Hi All,
> > >
> > > Is it at all possible to raise the MTU size on Fast Ethernet?
> > >
> > > I'll give you all a scenario
> > >
> > > ATM on one side with an MTU of 4470, fast ethernet connecting the two
> > > routers, Gigabit Ethernet the other side with an MTU of 4470.
> > >
> > > How can I raise the MTU of a Full Duplex Fast Ethernet Connection above
> > > 1500?
> > >
> > > I assume it's not possible when going through switched as they will show
> > > every packet as a giant but in a router to router cross-over connection
> > > I was hoping there was some way to keep the MTU static across the path
> > > rather than force the routers to fragment and re-assemble (of course the
> > > destination re-assembles).
> > >
> > > Darren Ward
> > > CCNP, CCDP, CCIE Wannabee
> > >
> > > _
> > > FAQ, list archives, and subscription info:
> > http://www.groupstudy.com/list/cisco.html
> > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
> > >
> >
> > _
> > FAQ, list archives, and subscription info: 
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> >
> >
>
> --
> www.tasmail.com
>
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Re: Fast Ethernet MTU Size

[Darren Ward]

Priscilla Oppenheimer wrote:

> Some sort of maximum is necessary, of course, in order to assure fairness.
> The myths about the maximum having something to do with making CSMA/CD work
> correctly are inaccurate, (not that anyone said that in this thread). The
> myths are a mistake by analogy. The minimum size frame is necessary for
> CSMA/CD to work correctly.

Totally agree, you simply can't get around (nor should you want to get around) the
minimum packet size because of the whole collision detection (magic 32 bit
time/distance) issue.

But as I've seen the MTU can indeed be set much higher, but relatively few cards/ports
support it.

Gigabit ports and 2FE cards are the only exception I've found so far but the 
performance
boost this gives some router to router traffic such as BGP is quite significant.

We have iBGP between GSR's in one area and the convergence and transfer times are
phenomenal.

Darren

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Re: 2509 start-up message!! Still not working....

[Darren Ward]

That's just your bootstrap version possibly not able to understand your 12.1 config

Nothing to worry about.

You can always upgrade your boot flash chips but it's not worth it.

Darren

Ash Aslam wrote:

> Hi there,
>
> I have tried the recommendations made and it still doesn't work.  As
> mentioned previously I get the following error at start-up:
>
> > %SYS-4-CONFIG_NEWER: Configurations from version 12.0 may not be correctly
> > under stood.
>
> I have tried the "write mem" and "reload" commands after upgrading the
> image, but no joy!!  The registry key is set to 0x2102 which is ok.
>
> What is the remedy for the above warning message?
>
> Another problem is that the router tries to resolve the actual hostname
> after the boot/POST check:
>
> ===THE FOLLOWING IS AN OUTPUT DUMP OF WHEN I TURN THE 2509 ROUTER
> ON=
>
> System Bootstrap, Version 11.0(10c)XB2, PLATFORM SPECIFIC RELEASE SOFTWARE
> (fc1)
>
> Copyright (c) 1986-1998 by cisco Systems
> 2500 processor with 14336 Kbytes of main memory
>
> %SYS-4-CONFIG_NEWER: Configurations from version 12.1 may not be correctly
> under
> stood.
> F3: 15801604+290776+1074848 at 0x360
>
>   Restricted Rights Legend
>
> Use, duplication, or disclosure by the Government is
> subject to restrictions as set forth in subparagraph
> (c) of the Commercial Computer Software - Restricted
> Rights clause at FAR sec. 52.227-19 and subparagraph
> (c) (1) (ii) of the Rights in Technical Data and Computer
> Software clause at DFARS sec. 252.227-7013.
>
>cisco Systems, Inc.
>170 West Tasman Drive
>San Jose, California 95134-1706
>
> Cisco Internetwork Operating System Software
> IOS (tm) 2500 Software (C2500-JOS56I-L), Version 12.1(5), RELEASE SOFTWARE
> (fc1)
>
> Copyright (c) 1986-2000 by cisco Systems, Inc.
> Compiled Wed 25-Oct-00 01:49 by cmong
> Image text-base: 0x0307CABC, data-base: 0x1000
>
> cisco 2509 (68030) processor (revision L) with 14336K/2048K bytes of memory.
> Processor board ID 02783771, with hardware revision 
> Bridging software.
> X.25 software, Version 3.0.0.
> SuperLAT software (copyright 1990 by Meridian Technology Corp).
> TN3270 Emulation software.
> 1 Ethernet/IEEE 802.3 interface(s)
> 2 Serial network interface(s)
> 8 terminal line(s)
> 32K bytes of non-volatile configuration memory.
> 16384K bytes of processor board System flash (Read ONLY)
>
> 00:00:08: %LINK-3-UPDOWN: Interface Ethernet0, changed state to up
> 00:00:08: %LINK-3-UPDOWN: Interface Serial0, changed state to down
> 00:00:08: %LINK-3-UPDOWN: Interface Serial1, changed state to down
> 00:01:36: %LINEPROTO-5-UPDOWN: Line protocol on Interface Ethernet0, changed
> sta
> te to down
> 00:01:42: %LINK-5-CHANGED: Interface Serial1, changed state to
> administratively
> down
> 00:01:42: %SYS-5-CONFIG_I: Configured from memory by console
> 00:01:43: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0, changed
> state
>  to down
> 00:01:45: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial1, changed
> state
>  to down
> 00:01:48: %LINEPROTO-5-UPDOWN: Line protocol on Interface Ethernet0, changed
> sta
> te to up
> 00:02:26: %SYS-5-RESTART: System restarted --
> Cisco Internetwork Operating System Software
> IOS (tm) 2500 Software (C2500-JOS56I-L), Version 12.1(5), RELEASE SOFTWARE
> (fc1)
>
> Copyright (c) 1986-2000 by cisco Systems, Inc.
> Compiled Wed 25-Oct-00 01:49 by cmong
> Translating "RouterC_TermServ"
>
> ==END OF ROUTER OUTPUT DUMP=
>
> As you can see on the very last line the IOS is trying to resolve the actual
> hostname "RouterC_TermServ".  The router stops responding at this stage just
> before it gets to the user level (Router>) prompt.  I press the Return/Enter
> key several times but nothing happens.
>
> I found the only way around this is to physically re-boot the router, go
> into boot mode, change the registry from 0x2102 to 0x2142.
> Once the image is loaded, I go into privilege mode and change the registry
> key back to 0x2102.
> I issue the "no ip domain-lookup" command to stop the Router name from
> resolving, I then do "write mem", "reload".
>
> The router starts to work fine at this stage.
>
> But when I physically turn the Router off (or issue a reload command during
> the small lab exercises I do), it goes back to the same problem of trying to
> (Translating "RouterC_TermServ") just before it gets to the user level
> prompt.
>
> I have also changed the flash modules to see if that will make any change
> but still the same problem?
>
> Any hints on this issue to save me from going through all this each time I
> turn the Router on?
>
> Thxs again,
> Ash
>
> -Original Message-
> From: Kevin Wigle [mailto:[EMAIL PROTECTED]]
> Sent: Thursday, December 07, 2000 3:58 PM
> To: Sasa Milic; Ash Aslam
> Subject: Re: 2509 start-up message!!
>
> Ok, Leigh-Anne Chisholm gives a pretty good post in answer to this thread.
>
> I'm going to bounce one of 

FDDI NIF

[Darren Ward]

Hi All,

A question on FDDI Neighborhood Information Frame that are used for discovering 
Upstream
and Downstream Neighbors.

Does the station transmit this on both the Primary and Standby Rings so it goes in each
directions as I think or does it require interaction from receiving NSA's and some 
kinda
magic happens on large rings?

Darren

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Re: VTP clarify?

[Darren Ward]

Li Li Zhao wrote:

> Dear friends,
>
> Any one can help me to clearify the concept of VTP?
>
> It's Virtual Trunking Protocol? Or VLAN trunking
> Protocol? Or the two are actually same.
>

VLAN Trunking Protocol

>
> VTP support 3 modes: Server, Client, and
> Transparent.What does Transparent mean?
>

Transperant doesn't use the VTP information itself but it will pass it on to other
switches, hence being transperant to the VTP Domain.

This also means you have to create your VLAN's locally on a Transperant switch as it
won't get the details from VTP.

Darren

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Re: Route-maps and statics

[Darren Ward]

Yes you can,

In a route-map you can have different precedences and change the metrics according to
match statements that can refer to access-lists as I show below:

router eigrp 1
 redistribute static route-map into-eigrp
!
route-map into-eigrp permit 10
 match ip address into-eigrp-acl
 set metric 64000 200 255 255 1500
!
route-map into-eigrp permit 20
 match ip address into-eigrp-acl-2
 set metric 256000 200 255 255 1500
!

The precendence 10 entry uses 64Kbps on a 2000 microsecond delay path on a totally
reliable path with 1500 MTU.
The precedence 20 entry is the same but says the minimum bandwidth so far is 256Kbps.

Of course I didn't show the access-lists but you get the idea.

Does this answer what you meant?

Darren Ward

"Williamson, Paul" wrote:

> Hi
>
> Is there a way of redistributing a number of static routes into eigrp,
> whilst altering the cost of just one of them
> I thought i'd be able to do it with a route-map statement but i'm having a
> bit of trouble getting it to work
>
> Any help would be grateful
> Thanks
> -Paul
>
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AGS Upgarde

[Darren Ward]

Hi Guys,

What's involved upgrading an AGS router to Enterprise IOS 11 from 10.3 ?

What memory/flash etc?

Darren

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AGS+ Determination

[Darren Ward]

Hi All,

I foudn the CCO link but what i can't find is how to determine the
difference between the following:

AGS+/MGS/CGS 
AGS+/AGS/MGS/CGS(4)

The first support 11.0.22 Enterprise, the second only 10.0.3

How do I determine whether the AGS+ is of the first or second type?

Darren

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Token Ring Cards

[Darren Ward]

Hi All,

Does anyone have any surplus for sale Token Ring Cards for AGS+ or
2600/3600 series ?

These are not easy to find in Australia..

Please reply e-mail off-list.

Darren

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LLC Types

[Darren Ward]

Hi All,

LLC Type 1 = Unacknowledged Connectionless = TCP/IP, IPX, OSI, NetBIOS
over IP/IPX etc
LLC Type 2 = Connection Oriented = SNA, NetBIOS over NetBEUI

LLC Type 3 = Acknowledged Connectionless = ???

I can't find a specific example of a service using the Type 3 LLC...

Anyone help with an example where Type 3's are used?

Darren Ward

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Re: bandwidth loss!

[Darren Ward]

Depending on the router and IOS I'd use CAR to rate limit the ethernet
interface.

The bandwidth statement is only useful for SNMP and Routing Protocols.
It has no effect on the properties of the interface itself.

Darren Ward

stephano mwendo wrote:
> 
> Haloo guys,
> I have one problem here which is troubling me.
> I have one customer connected to ethernet interface of
> my router through a wireless link.
> The bandwidth at the router ethernet interface is
> configured at 128Kbps.To my suprise the output rate of
> the port reads at sometimes 330Kbps
> I have this problem because I want to connect other
> customers but my bandwidth seems to be full but I am
> loosing a lot of it this way.
> Can anyone have a solution please.
> 
> below is the interface description at "show int"
> 
> 
> Ethernet0 is up, line protocol is up
> Hardware is Lance, address is 00e0.1e42.bc84 (bia
> 00e0.1e42.bc84)
>   Internet address is 216.x.xx.xx 255.255.255.224
>   MTU 1500 bytes, BW 128 Kbit, DLY 1000 usec, rely
> 255/255, load 232/255
>   Encapsulation ARPA, loopback not set, keepalive set
> (10 sec)
>   ARP type: ARPA, ARP Timeout 4:00:00
>   Last input 0:00:00, output 0:00:00, output hang
> never
>   Last clearing of "show interface" counters never
>   Output queue 0/40, 0 drops; input queue 0/75, 0
> drops
>   5 minute input rate 106000 bits/sec, 115 packets/sec
>   5 minute output rate 338000 bits/sec, 116
> packets/sec
>  15399913 packets input, 1917488770 bytes, 0 no
> buffer
>  Received 125968 broadcasts, 0 runts, 0 giants
>  0 input errors, 0 CRC, 0 frame, 0 overrun, 0
> ignored, 0 abort
>  0 input packets with dribble condition detected
>  16692518 packets output, 2060062478 bytes, 0
> underruns
>  0 output errors, 169769 collisions, 1 interface
> resets, 0 restarts
>  0 output buffer failures, 0 output buffers
> swapped out
> __
> 
> NB:Please help me I need to fix this problem soon
> 
> =
> *
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> PO BOX 8806, DAR ES SALAAM, TANZANIA.
> TEL 255 22 2114053
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3600 Ethernet Question

[Darren Ward]

Hi All,

Here's a question for one and all.

A 3640 with a 1E2W running Enterprise IOS 11.3.8 does not have the
full-duplex command available for the ethernet.

However a different 3640 with a 4E card running IP Plus IOS 12.0.7T does
support the full-duplex command on the ethernet ports.

The question I have since I can't find it with a search on CCO is if the
support for 'full-duplex' is based on the card or the IOS?

Darren Ward

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Re: 2900's

[Darren Ward]

There's a bug id I looked up  while ago that was in relation to the
conole port flow control causing a switch to reboot.

Try the bugtracker on CCO to find it.

Darren

"Gonzalo P." wrote:
> 
>  I've seen it happen also in the 3500'sXL.
> 
> I would be very careful with the console connection...  Sometimes they just
> reboot if you plug the cable... or if you change settings in the
> hyperterminal.
> 
> I have also seen them die quite a few times, so, I don't recommend them for
> any important datacenter stuff. Use them as workgroup switches.
> 
> G.
> 
> ""Jeff"" <[EMAIL PROTECTED]> wrote in message
> 94k8s3$hnp$[EMAIL PROTECTED]">news:94k8s3$hnp$[EMAIL PROTECTED]...
> > I just got some 2924-XL's in and I'm currently configuring them... one
> thing
> > I notice though is that every so often they automatically reboot! Any
> ideas?
> >
> > Jeff
> >
> >
> > _
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WCCP

[Darren Ward]

Hi All,

In the docs and CLI I have studied and successfully implemented WCCP v1
for web-cache to a Linux Server running Squid 2.4 with WCCP support
compiled in and it works great!

However this is just for web traffic and it refers to other possible
redirects that can be done which I assume to include FTP among other
possibles..

But I cannot find the numbers for the different WCCP redirects and
there's no nice helpful redirect ftp-cache :(

Can anyone help me with some common ones or better yet a decent URL on
CCO?
I've searched but to no avail, probably just bad search parameters

Darren

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Help Identifying a PIX

[Darren Ward]

Hi All,

If you can't see the PIX but have access how can you identify exactly
the real model number?

A show version on this one displays:
Hardware: VS440LX, 16MB RAM, CPU Pentium Pro 150MHz

I think it's a PIX 1 but I need to confirm for a DRAM Upgrade to
support PIX v5 Software

Last Question: Anyone know how to retrive the activation key from a PIX?

Darren

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AS5300, DNIS and Modem Profiles

[Darren Ward]

Hi All,

What I want to achieve is overlapping modem pools on a Cisco AS5300 with

DNIS support that when dialled will configure the modems appropriately.

i.e.
!
modem-pool v90
 pool-range 1
 called-number 5557000
!
modem-pool v34
 pool-range 1
 called-number 5557001
!

So when a user dials 5557000 is commands up the modem for a custom v90
init string and when 5557001 the modem i init'd for no v90 support

We've done this on Nortel 5399's but not the Cisco's.

All help and URL's greatly appreciated!

Darren

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Re: AS5300, DNIS and Modem Profiles

[Darren Ward]

A rotary group creates dialer profiles that can place physical interfaces into
multiple different profiles yes.
Rotary Groups primarily are used to create a Virtual Dialer Interface to dial
out multiple channels.

But I'm talking about dialing in, not out and in the ACRC notes and Cisco
Press Book there is absolutely no mention of DNIS support or Modem Scripts for
Initialisation based on DNIS.

Unfortunately still searching..

Darren

samli wrote:

> Check the ACRC manual, use the "rotary" command
>
> Sam Li
> - Original Message -
> From: "Darren Ward" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Sunday, November 05, 2000 9:11 PM
> Subject: AS5300, DNIS and Modem Profiles
>
> > Hi All,
> >
> > What I want to achieve is overlapping modem pools on a Cisco AS5300 with
> >
> > DNIS support that when dialled will configure the modems appropriately.
> >
> > i.e.
> > !
> > modem-pool v90
> >  pool-range 1
> >  called-number 5557000
> > !
> > modem-pool v34
> >  pool-range 1
> >  called-number 5557001
> > !
> >
> > So when a user dials 5557000 is commands up the modem for a custom v90
> > init string and when 5557001 the modem i init'd for no v90 support
> >
> > We've done this on Nortel 5399's but not the Cisco's.
> >
> > All help and URL's greatly appreciated!
> >
> > Darren
> >
> > _
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Re: TCP protocol behaviour - Ports above 1023

[Darren Ward]

While the port selection is random it does effectively make sure something isn't 
already

bound to that port and if it is it will select another random port until it finds a 
free

port.

Darren

Chuck Larrieu wrote:

> Got a question about this.
>
> Application wants to open a TCP connection to something - say http, so the
> application issues the request, TCP on the application side uses some random
> port number above 1023 as the source port number. The destination port is
> the well know port on the distant end.
>
> However, I see from the IANA port listings
> (http://www.isi.edu/in-notes/iana/assignments/port-numbers ) that there are
> any number of registered ports above 1023. For example L2TP uses port 1701,
> Groupwise uses port 1677, ands WINS uses port 1512. The IANA page itself
> calls ports 1024 through 49151 "registered" and further states that only
> ports 49152 and beyond are "dynamic and / or private"
>
> Anyone ever sniffed outbound traffic and seen apps using source ports in the
> 1024 through 49151 range?
>
> It just occurs to me that this has the potential of creating problems, if an
> application uses a port reserved for some other application. Since most of
> the ports in this "registered" range appear to be for obscure kinds of
> services or applications, perhaps this isn't really and issue.
>
> Comments?
>
> Chuck
>
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Marc Russel's Practice Labs

[Darren Ward]

Hi All,
A lot of discussion is made about Marc Russel's Lab Scenarios and I
have one simple question before buying them.
How similar (without breaking NDA) are the Lab scenarios to the real
format of the CCIE Lab?
You'll notice I didn't ask if these Lab Questions are the same just
about the format.
While I'm getting reasonably confident in my ability to have a good
go at the Lab IOS and CatOS wise,  I'd like to familiarise myself
in the way they present the Lab or ask questions (rather than the questions
themselves).
All I know so far, is the technologies, hardware and rough overview
of the format of the two days but nothing about how the questions are presented.
Look forward to some responses.
Darren

CCIE Lab available in Melbourne Australia [7:28034]

[Darren Ward]

Hi All,

Is anyone interested in buying into a shared CCIE Lab available over the
Net in Melbourne?

Lab is complete including Cat switches, ATM, VOIP, and lots of 3600 and
2500 routers.

Anyone interested and want diagrams etc email me off list.

Darren Ward
(PGradCS, CCIE #8245, MCP)




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Cisco WAN Certifications [7:28615]

[Darren Ward]

Hi All,

Has anyone heard what will replace the CCNAWS, CCNPWS with their expiry on
Dec 31st 2001?

I was just about to start my WAN studies when I read this on CCO:

http://www.cisco.com/warp/public/10/wwtraining/certprog/wan/WAN_retires_12-31-01.html

It mentions that there may be a specialist certification for WAN but I
can't find anything else out at all.

Darren Ward
(PGradCS, CCIE #8245, CCNP, CCDP, MCP)




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CISA [7:28617]

[Darren Ward]

Hi All,

Anyone have any materials from the course they are willing to swap/sell?

I'm interested in following up the Internet Solutions Architecture cert
for interests sake but there's no publications only the training courses
which are not available over here :-P

Darren Ward
(PGradCS, CCIE #8245, CCNP, CCDP, MCP)




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Re: In defence of Brad

[Darren Ward]

I'd like to add a couple of points that possibly have been overlooked.

The first one is that I don't believe I've seen Brad 'spam' the list for sales.

He only ever seems to reply to people who have posted looking for equipment to
study on.

Secondly, isn't that the point of this list as well?
To be able to get any and all assistance from a peer group studying for the
CCxx's?
This surely includes equipment and I know I wouldn't give my routers away for
free either.

I know I've got enough on my plate studying for my written soon instead of
debating a non-existant list ethics issue.

Darren Ward - PGradCS, CCNP, CCDP, MCP


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Re: KBPS

[Darren Ward]

Just confirming what has already been said that Kbps = Kilobits and KBps =
Kilobytes.

Darren - CCNP, CCDP

Cisco Study wrote:

> Hi,
>
> i have one basic question that 64 Kbps means 64 kilo
> bits per sec. or 64 kilo bytes per sec
>
> thanks in advance
>
> regards,
>
> __
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Re: 2 Cisco's Versus 3 Cisco's

[Darren Ward]

I'd have to say a lot.

A Cisco 4000 is a decent study device and can support most modules you'll need
such as ATM when you expand your lab later. I suppose though if given a choice
a 3640 would be a better option as you can also get Voice modules which is now
in the CCIE Lab!

If you had to sell anything though I'd still consider the 2509 as the most
expendable.

How much do you want for it ;-)

Seriously though consider three routers the minimum for even a basic lab if
you want to play with dynamic routing and tunnelling for example.

Darren

"Butler, Gary" wrote:

> I have a 2509, 2511 and a 4000 all tied together with back to back cables.
> I don't seem to be able to force myself to study - getting old and tired.
> If I sell the 4000 and keep the 25's what do I give up in terms of being
> able to simulate in case I do start  reapplying myself in the future.
> Thanks in advance.
>
> Gary Butler
>
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Re: A career decision

[Darren Ward]

I'd recommend you consider a design path then.

With a CCDA you will be qualified as a small networks designer and have
an understanding of the overall network design and reporting processes.

This can be used by a Manager to better understand those pesky design
doc's, tender reponses and even more basically to know what to ask for
in a tender request and spot companies that are more professional and
thorough with their responses!

I've come across a LOT of companies who would have simplified their
tender requests and therefore been given a correct response first time
if they had a CCDA in the chair!

Darren Ward - CCNP, CCDP, MCP

cisco wrote:

> Dear Friends,  I am in a delima on how I should plan my career .I am a
> MBA in Marketing , with great intrest in Networking.I secured the MCSE
> and CCNA certification.I have now come to a situation on How I should
> olan my career, since many people said that if I continue with my
> cisco certifications, I will be a full technical person and lose my
> management qualification advantage.Since there are many senior people
> in this list I am sure you can help me with some advise. I sure  enjoy
> studying  networking but do you think I  will not be considered for my
> MBA after some yrs in any organisation.  Thanks for the
> help.RegardsJacob Thomas

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CCIE Design Lab and NVT

[Darren Ward]

Hi All,

Does anyone know what software Cisco will be using in their CCIE Design
Lab that has been finally released?

All it says is :

"Upon completion of the design, a NVT (Network Verification Tool) will
be used to verify all design requirements are met."

I'd like to look a bit harder into it by trying to obtain a copy of the
software but when I had called our Cisco Rep he didn't know anything
about it.

Can anyone shed some light on it for me?

Darren

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Re: EIGRP network command

[Darren Ward]

Chuck Larrieu wrote:

> You may want to review the result of the network command under the EIGRP
> routing process. While I have not looked at this in IOS versions above 11.2,
> I do know that networks are placed into the process, not interfaces, in 11.2

Correct. The network statement in the EIGRP process specifies the interfaces
that will participate in EIGRP adjacencies with neighbours.

However remember that routing summaries for EIGRP can be placed under the
interface in the configuration.

>
> For EIGRP, there is no option for specifying a single address into the
> routing process. One can place network 10.1.1.1 into the EIGRP process, but
> doing a show run should yield network 10.0.0.0 in the running config.

That has changed in later releases of IOS 12 as you can now put an inverse mask
in just like OSPF.

Darren Ward - CCNP, CCDP, MCP

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Re: Cat 5000 Sup 1 and Sup 2 differences

[Darren Ward]

Well the advantage is that I saw was that some switching modules are supported
in 5.x that aren't supported in 4.x

I think it was the 36 port 10/100 switching modules from memory.

I think there might have also been something with NetFlow enhancements in 5.x
over 4.x?

Both do support ISL but remember Cisco themselves have stated that they will not
support ISL in the future and that VLAN's should use dot1q from now on.

In fact there are some 28xx and 29xx switches that now cannot support ISL!
I know the 2824G with new software cannot for sure!

Darren

Mark Holloway wrote:

> I know the Catalyst 5000 Supervisor 1 engine only supports LAN Switching IOS
> 4.x and lower due to the 16MB memory limit.  Some Sup 2 modules only support
> 4.x, some support 5.x, but are there really any advantages to running IOS
> 5.x versus 4.x?  If not, are there any advantages of 4.x on a Sup 2 versus a
> Sup 1?  Do they all support ISL?
>
> Thanks,
> Mark
>
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ISL Support [was Re: Cat 5000 Sup 1 and Sup 2 differences]

[Darren Ward]

Hi Flem,

I'm trying to find it.

I had a case logged regarding why there was no ISL of the new 2948G
switches we bought and the answer was that they now only support dot1q
trunking.

The link the case I opened is now no longer visible but I found the
following:

Features of 2948G, you'll notice only 802.1Q VLAN's and VTP Supported.
http://www.cisco.com/univercd/cc/td/doc/product/lan/cat2948/inst_gd/01intro.htm

Hmmm.. I can't find any references on any statements just yet, but from
the discussion I had with the TAC during the case they said that they
were moving away from proprietory protocols where an equivalent was
supported as in the case of ISL and 802.1Q

Like most things I think we'll see ISL still supported in most future
releases but it's interesting that the 2948G definately has no ISL
support at all.

Darren

Flem wrote:

> Hi Darren ,
>
> Do you have a reference on cco stating that cisco will
> no longer support ISL in the future ?
>
> thanks,
> flem
>
> --- Darren Ward <[EMAIL PROTECTED]> wrote:
> > Well the advantage is that I saw was that some
> > switching modules are supported
> > in 5.x that aren't supported in 4.x
> >
> > I think it was the 36 port 10/100 switching modules
> > from memory.
> >
> > I think there might have also been something with
> > NetFlow enhancements in 5.x
> > over 4.x?
> >
> > Both do support ISL but remember Cisco themselves
> > have stated that they will not
> > support ISL in the future and that VLAN's should use
> > dot1q from now on.
> >
> > In fact there are some 28xx and 29xx switches that
> > now cannot support ISL!
> > I know the 2824G with new software cannot for sure!
> >
> > Darren
> >
> > Mark Holloway wrote:
> >
> > > I know the Catalyst 5000 Supervisor 1 engine only
> > supports LAN Switching IOS
> > > 4.x and lower due to the 16MB memory limit.  Some
> > Sup 2 modules only support
> > > 4.x, some support 5.x, but are there really any
> > advantages to running IOS
> > > 5.x versus 4.x?  If not, are there any advantages
> > of 4.x on a Sup 2 versus a
> > > Sup 1?  Do they all support ISL?
> > >
> > > Thanks,
> > > Mark
> > >
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Re: Cat 5000 Sup 1 and Sup 2 differences

[Darren Ward]

Ok what I found is:

http://www.cisco.com/univercd/cc/td/doc/product/lan/cat5000/cnfg_nts/supvr/

Which can be summarised as:

Hardware:
Supervisor I is engine  for 2900
Supervisor II is engine for 2926
Any Supervisor can be used in a 500x series switch.
Only Supervisor II and Supervisor III can be using the 550x series switches.

Features:
Supervisor II and Supervisor III support redundant supervisor engine option
available in the 5500 and 5505.
Supervisor III boots differently from other Supervisors - has both a ROM
monitor and supervisor engine software

Questioned:
Supervisor III has Phoenix ASIC for using all three 1.2Gbps BUS's in a 550x
to full 3.6Gbps.

I say that last one is questioned because while a SupII can be used in a 550x I
remember from studying for my CLSC Exam that only the SupIII had the Phoenix
ASIC in it which made full use of the 3 bus's work.

Please correct me and provide a reference if I'm wrong.

Darren

Albert wrote:

> There is more than just memory difference between the two Sup.
> The major difference is the backplane.  The Sup 1 can only access one
> backplane (Cat 5000/5002).  Sup 2 can access three backplane (Cat 550Xs).
> For VLAN lab, Sup 1 with IOS 4.x is just fine.
>
> Albert
>
> ""Mark Holloway"" <[EMAIL PROTECTED]> wrote in message
> 007701bfc92a$1354d7c0$[EMAIL PROTECTED]">news:007701bfc92a$1354d7c0$[EMAIL PROTECTED]...
> > I know the Catalyst 5000 Supervisor 1 engine only supports LAN Switching
> IOS
> > 4.x and lower due to the 16MB memory limit.  Some Sup 2 modules only
> support
> > 4.x, some support 5.x, but are there really any advantages to running IOS
> > 5.x versus 4.x?  If not, are there any advantages of 4.x on a Sup 2 versus
> a
> > Sup 1?  Do they all support ISL?
> >
> > Thanks,
> > Mark
> >
> >
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Re: Source interface for ICMP

[Darren Ward]

Well Ii know there is no "ip icmp source-interface" command like there is
"ip ftp source-interface" etc...

I haven't looked hard at the SNMP MIB group but matbe it's possible to do
it that way?

Darren

Simon Hopkins wrote:

> Is there a way to get a Router to source icmp packets from a particular
> interface?
>
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Re: LANE help and a couple of other things.

[Darren Ward]

Joe,

Would there be any way to use ISDN sub-addressing to do this?

Sorry if this is silly.

In Australia none of the Telco ISDN Switches use SPID's so I haven't done much
work with them outside basic lab configs.

Darren

Joe Martin wrote:

> 2- NO
> ""Quinton Maynard"" <[EMAIL PROTECTED]> wrote in message
> [EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> >
>
> > #2   Is there any way to make the two spids of your isdn line talk to each
> > other using two isdn routers and NT1's and thereby avoid having to buy an
> > isdn simulator?
> >

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Catalyst 5x00 BUS's and ASIC's [was Re: Cat 5000 Sup 1 and Sup 2 differences]

[Darren Ward]

Ah!
I wondered as to the references to the SupII but the statements contradicting
that in the pertaining documents for the SupIII.
Thanks very much for clearing that up for me as I was _very_ misunderstood and
don't mind being shown the right answer.
After all how else am I going to learn but to open my big mouth and get shot
down ;-)
Besides it saves anyone else asking the stupid questions if I ask them all!

Tell me if I'm right about the following:

The 3 x 1.2Gbps BUS's on a 550x feed different card slots in the chassis.
In the top couple of slots BUS A, B and C are available, in other slots only 1
or 2 of the 3 BUS's link to them.
By repeating the frame onto all BUS's allows the SupII to communicate with
every card slot from 2-12.
However really it is only communicating at real throughput of 1.2Gbps but
across all 3 BUS's simultaneously.

The SupIII bridges the BUS's and so can select the BUS that will reach it's
correct destination card and use only it.

Last stupid question:

So I remember that the frame is actually copied to all ports and I think it's
EARL that decides which port will transmit the frame and all others drop it.
This must mean however that the frame is only copied to every port on that BUS
and not every port in the chassis?

Darren

PS Thanks for the update on the engine in the 2926G compared to the 2926, I
wish Cisco could update their pages.

Flem wrote:

> Darren ,
>
> SupII has repeaters between the three busses .
> SupIII has a bridge between the three busses , the
> bridging functionality is implemented using the
> Phoenix ASIC .
>
> Both supII and supIII has a connection to all busses .
>
> Also the 2926G is based on supIII .
>
> flem
> --- Darren Ward <[EMAIL PROTECTED]> wrote:
> > Ok what I found is:
> >
> >
> http://www.cisco.com/univercd/cc/td/doc/product/lan/cat5000/cnfg_nts/supvr/
> >
> > Which can be summarised as:
> >
> > Hardware:
> > Supervisor I is engine  for 2900
> > Supervisor II is engine for 2926
> > Any Supervisor can be used in a 500x series
> > switch.
> > Only Supervisor II and Supervisor III can be
> > using the 550x series switches.
> >
> > Features:
> > Supervisor II and Supervisor III support
> > redundant supervisor engine option
> > available in the 5500 and 5505.
> > Supervisor III boots differently from other
> > Supervisors - has both a ROM
> > monitor and supervisor engine software
> >
> > Questioned:
> > Supervisor III has Phoenix ASIC for using all
> > three 1.2Gbps BUS's in a 550x
> > to full 3.6Gbps.
> >
> > I say that last one is questioned because while a
> > SupII can be used in a 550x I
> > remember from studying for my CLSC Exam that only
> > the SupIII had the Phoenix
> > ASIC in it which made full use of the 3 bus's work.
> >
> > Please correct me and provide a reference if I'm
> > wrong.
> >
> > Darren
> >
> > Albert wrote:
> >
> > > There is more than just memory difference between
> > the two Sup.
> > > The major difference is the backplane.  The Sup 1
> > can only access one
> > > backplane (Cat 5000/5002).  Sup 2 can access three
> > backplane (Cat 550Xs).
> > > For VLAN lab, Sup 1 with IOS 4.x is just fine.
> > >
> > > Albert
> > >
> > > ""Mark Holloway"" <[EMAIL PROTECTED]> wrote in message
> > > 007701bfc92a$1354d7c0$[EMAIL PROTECTED]">news:007701bfc92a$1354d7c0$[EMAIL PROTECTED]...
> > > > I know the Catalyst 5000 Supervisor 1 engine
> > only supports LAN Switching
> > > IOS
> > > > 4.x and lower due to the 16MB memory limit.
> > Some Sup 2 modules only
> > > support
> > > > 4.x, some support 5.x, but are there really any
> > advantages to running IOS
> > > > 5.x versus 4.x?  If not, are there any
> > advantages of 4.x on a Sup 2 versus
> > > a
> > > > Sup 1?  Do they all support ISL?
> > > >
> > > > Thanks,
> > > > Mark
> > > >
> > > >
> > > > ___
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Cisco FTP? [was Re: Source interface for ICMP]

[Darren Ward]

Look up the exception dump command.

What it does is on a crash, logs into an FTP server and uploads a core
dump for later debugging of the cause of the crash.
It can also use TFTP with no parameters set but is less secure so it is
recommended that in order to use it you also need to specify the source
interface to use so you can restrict access to your TFTP server.

Config portion:

ip ftp source-interface Loopback0
ip ftp username someusername
ip ftp password somepassword
exception protocol ftp
exception dump 303.234.181.223<-- Fake example IP ;-)

Important note:
The file size will be consistant with the processor memory so 16Meg
Process memory = 16 Meg File.

Darren

Justin Marcus wrote:

> hey :)
> whats the command in a router to ftp ?
>
> thanks :)

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Re: CLSC

[Darren Ward]

Remember that this is a VERY product specific exam.

Expect many questions of the Catalyst 5x00 platforms like ASIC and their
purposes, BUS speeds etc...
Also know your LANE and how it fits in with the 5500 platform (ASP etc)

Also a surprising amount on other Catalyst BUS speeds and interfaces such
as the old 3000 series and stack groups etc..

All in all some people find this the easiest but I came from a Telco/ISP
background and found the campus stuff especially such product specific
questions to be more difficult.

Then again I never did the CLSC course.

I used the Cisco Press CLSC Exam Guide to study and the Cisco Press CCIE
Lan Switching as a reference.
I also used the Boson tests for this one which while i found helpful are
really only a guide to what areas you need to study more on.

Darren

Laurent Lange wrote:

> Hello all,
>
> I'm going to begin to study for the CLSC exam, that I have to pass by
> end July. It will be my last exam in the CCDP track. Any advices?
>
> thanks
> Laurent
>
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Re: Network test and mesurment - All say

[Darren Ward]

We wrote custom SNMP scripts to grab what we wanted and shove it into an SQL
server.

>From there all we needed to do was create some CGI's and ASP's to retrieve and
present what we wanted.
After some work it was even easy for the Management Team to log onto the Web
Server and put the dates in for the summaries they wanted and it showed them a
lot of nice pretty graphs that they didn't understand but really liked the look
of ;-)

Long term storage this way is not an option so we created some static files
with summaries only once the data was 2 months old. Depends on the size of your
network and what data you need to get.

We found What's Up to be too chatty in a large Telco/ISP environment so we
dumped that quickly, once again depends on your needs etc...

There's also a commercial program out there called Concord Network Health that
you might want to check out.
Shows icmp tests which are true indicators since it uses the ICMP MIB on the
routers not from an NMS and also watches temperatures, CPU and Memory among
things.

Sorry don't have a URL for it

Darren

kaushik khakhar wrote:

> Hi group,
>
> Since last few days I have been looking around for some Network Assessment
> tools. I have got to know and work on 2 at this stage:-
> 1. Whats UP Gold ( Good for Network Monitoring)
> 2. MRTG( Serves  the purpose to some extent)
>
> I need to measure performance on LAN ports, and WAN ports and also log the
> availabilty staus. In this regard I got one reference of "Agilent Netmatrix
> Performance Centre Product Family(HP OV NetMatrix). I need to have more
> information on  this product.
>
> Also, do send me what softwares are used by you and ofcourse, your comments
> on that.
>
> Thanks,
>
> Kaushik
> 
> Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com
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Re: netbios over ddr

[Darren Ward]

Hi Chan,

Use the command "netbios nbf" in the ethernet and dialer/async at both ends
for this to work.
This enables NetBIOS Frames Protocol between the two interfaces.

The docs are at:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios111/mods/2/mod/2rbook/2rslip.htm

and show a sample config portion.

Note: I couldn't find this command in 12.0.9 IP Plus so it looks like it is
feature pack dependant.
It's probably in the Desktop feature pack.

This is especially important for the CMTD Exam but not for the BCRAN from
what I've seen.

Darren




Chancp wrote:

> hi all
>
> does anyone know if it is possible to configure a cisco to perform ddr to
> forward netbios packets
>
> rgds
> chan...;-)
>
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Re: frame relay newbie question

[Darren Ward]

Netware 5 can however use IPX and sadly there are some applications that can
only use IPX/SPX still so I don't think we'll see IPX dissappear for quite some
time if ever.

Netware 5 now has a true IP stack and that is the default method of networking
in a new environment but full support for IPX is still built in.

Darren

Richard Holland wrote:

> I wouldn't look to see IPX/SPX dissappearing anytime soon, It'll take a lot
> of time and money for a company or organization to convert their IPX network
> to IP, for example.  (If I remember correctly Netware 5.0 and beyond uses
> and will USE IP from now on, phasing IPX out, am I correct?)
>
> Richard Holland
> CCNP,MCSE
>
> - Original Message -
> From: "Chuck Larrieu" <[EMAIL PROTECTED]>
> To: "Dan West" <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>
> Sent: Tuesday, May 30, 2000 8:11 AM
> Subject: RE: frame relay newbie question
>
> Is it common/practical to run IP and IPX over the same
> frame relay subinterface?
>
> CL: Yes. Why not? ( he asked rhetorically, meaning he does not expect anyone
> to answer )
>
> I am only asking because in Lammle's CCNA prep book it
> is mentioned that one of the advantages of
> subinterfaces is that you can run IP on one and IPX on
> another. BUT, the example directly following that
> statement shows IP and IPX running on the same
> subinterfaces.
>
> CL: the lab is still down so I can't do a quick and dirty here. if we were
> running ip and ipx to the same location on different subinterfaces would we
> need two pvc's? can one configure the same dlci on two different
> subinterfaces if the other side is the same? pvc's cost money, normally. so
> why would one add expense for this sole reason? Cain't tell ya! but your
> question brings to mind a lab to try.
>
> More importantly, is IPX even going to be an issue
> much longer?
>
> CL: one can hope not, but then again, AppleTalk and Token ring are still
> around :->
>
> Thanks.
>
> __
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Re: NetWare 5.0 was RE: frame relay newbie question

[Darren Ward]

Hmmm, we've deployed Netware 5 with NDS in a pure IP environment across
a WAN and seen significant traffic reductions using periodic NDS
replication over the old IPX and bindary environment they used to have.

It was not completely painless though as new servers had to be built in
a Lab environment to act as masters for each site, run through rigorous
compatability testing then deployed onsite and tested yet again over a
weekend.

Then it was an easy matter to migrate the legacy servers one-by-one to
the new true IP environment.

It depends on the existing environment and whether you are free to
implement a proper NDS IP networking model.
The co-existance method using IPX-over-IP Tunnels inside the servers is
a bad idea, use tunnels on the routers with IPX EIGRP or NLSP as the WAN
protocol to cut down on RIP and SAP traffic levels.

In most cases SAP filters should be applied anyway to stop those chatty
printers and so on.
Even think of using static SAP entries if you can get away with it
combined with filters.

Darren

"Prather, Aaron" wrote:

>
>
> Yes, you are correct.  I am working on a large project for a county
> school system and they are currently upgrading all of their servers to
> NetWare 5.0  The funny part is that at first we were using IP/IPX in
> compatibility mode and then were going to phase out the IPX.  But it
> was so slow that it was impossible to administer with all of the SAP's
> and what not still crossing the WAN.  They ended up upgrading the WAN
> and not using compatibility mode and just using all of the SAP's for
> communication.  I'm not sure if after all of the boxes are upgraded to
> 5 if they will still use IPX or migrate to IP.  Novell has a ways to
> go in the IP world.  So, yes, still expect IPX/SPX to be out there for
> a while.
>
> Aaron
>
> -Original Message-
> From: Richard Holland
> To: Chuck Larrieu; Dan West; [EMAIL PROTECTED]
> Sent: 5/30/00 9:37 AM
> Subject: Re: frame relay newbie question
>
> I wouldn't look to see IPX/SPX dissappearing anytime soon, It'll take
> a
> lot
> of time and money for a company or organization to convert their IPX
> network
> to IP, for example.  (If I remember correctly Netware 5.0 and beyond
> uses
> and will USE IP from now on, phasing IPX out, am I correct?)
>
> Richard Holland
> CCNP,MCSE
>
> - Original Message -
> From: "Chuck Larrieu" <[EMAIL PROTECTED]>
> To: "Dan West" <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>
> Sent: Tuesday, May 30, 2000 8:11 AM
> Subject: RE: frame relay newbie question
>
>
> Is it common/practical to run IP and IPX over the same
> frame relay subinterface?
>
> CL: Yes. Why not? ( he asked rhetorically, meaning he does not expect
> anyone
> to answer )
>
> I am only asking because in Lammle's CCNA prep book it
> is mentioned that one of the advantages of
> subinterfaces is that you can run IP on one and IPX on
> another. BUT, the example directly following that
> statement shows IP and IPX running on the same
> subinterfaces.
>
> CL: the lab is still down so I can't do a quick and dirty here. if we
> were
> running ip and ipx to the same location on different subinterfaces
> would
> we
> need two pvc's? can one configure the same dlci on two different
> subinterfaces if the other side is the same? pvc's cost money,
> normally.
> so
> why would one add expense for this sole reason? Cain't tell ya! but
> your
> question brings to mind a lab to try.
>
> More importantly, is IPX even going to be an issue
> much longer?
>
> CL: one can hope not, but then again, AppleTalk and Token ring are
> still
> around :->
>
> Thanks.
>
> __
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> Kick off your party with Yahoo! Invites.
> http://invites.yahoo.com/
>
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CCIE Lab Study Guide and SNA

[Darren Ward]

Hi All,

Does anyone find it strange that this guide has no SNA Labs at all, not
even DLSW+?

Is this a hint or an exclusion?

I realise that Voice was announced while it was going to print but SNA
has been a requirement for a while I thought.

Does anyone have any references to some SNA Practice Labs and Scenarios?

Darren

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Router Leasing

[Darren Ward]

Hi All,

Anyone aware of any Australian companies that lease routers/switches?

Darren

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Re: CCIE ExamCram

[Darren Ward]

Nope, just looked on Amazon and it's due for release on August 7th, there's
also 2 other book due for release in December 2000 and January 2001
respectively.

Darren

William E Gragido wrote:

> Are talking about the Routing and Switching EXAM CRAM for the CCNA?  If so,
> its been out for months my friend!  Another good one to pick up by Coriolis
> is the Little Black Book for IP Routing for Cisco Routers.  Its the same
> price and is an invaluable tool.
>
> Regards,
>
> Will
>
> > -Original Message-
> > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
> > Kevin L. Kultgen
> > Sent: Wednesday, May 31, 2000 9:53 AM
> > To: [EMAIL PROTECTED]
> > Subject: CCIE ExamCram
> >
> >
> > Well, it's finally here.
> >
> > > V. Book of the Month
> > >
> > > Title: CCIE Routing and Switching Exam Cram
> > > Publisher: The Coriolis Group
> > > Author(s): Henry Benjamin and Tom Thomas
> > > ISBN: 1-57610-433-8
> > > Price: $29.99
> > > Available: 8/00
> >
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CCIE Study Group In Melbourne,Australia

[Darren Ward]

Hi All,

Anyone looking to form a CCIE Study Group in Melbourne?

I'm currently looking into leasing a decent amount of equipment and
putting into a Lab since the only hands on practice lab here is in
Sydney.

Anyone interested please reply off-list.

Darren

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Re: FastEtherChannel!

[Darren Ward]

The big difference is that EtherChannel uses a source/destination translation to
decide on which port in the EtherChannel Group to use for each
source/destination pairing in a frame. It doesn't use round-robin or destination
hashing or fragmentation or anything like that.

If you have a 2 port EtherChannel Group an XOR on the last bit in the frames
source and destination MAC's is done to select the channel(port) to transmit the
frame on.

e.g.src mac = xxx0, dst mac = xxx1 then channel 1 of the
EtherChannel Group is used.
  src mac = 0, dst mac = xxx0 then channel 0 of the
EtherChannel Group is used.

For a 4 port EtherChannel Group the last two bits of both the src and dst MAC's
is used to select the channel(port) to transmit on.

e.g.src mac = xx10, dst mac = xx00 then channel 2 of the
EtherChannel Group is used.
  src mac = xx10, dst mac = xx11 then channel 1 of the
EtherChannel Group is used. (Remember XOR not OR)

There are other rules to EtherChannel groups.

All ports must be contiguous and on the same card (Except for the 6000's)
Only 2 port and 4 port EtherChannel Groups can be used, no 3 channel groups or
larger than 4 (Except for 6000's)
All ports either must be on same VLAN or they all must be Trunks.
If they are Trunks they must allow the same VLAN's.

Which brings us to link resiliency.

I know that in a 2 port group when one link fails all traffic simply goes across
the other link as EARL learns the MAC's on each side of the link.

However for a 4 port group it is written that traffic that was supposed to go
across the failed link is "migrated to the neighboring segment". My question is
whixh side is the neighbor? e.g. port 2 fails, does it use port 1 or port 3?

Hope this helps.

Darren

Albert Ip wrote:

> Cristina,
>
> When you have more than one port connect to another switch, spanning tree
> will disable all but one of the port.  If that port (live) connection is
> cut, spanning tree will enable one of the other port to transfer data.  This
> process waste ports that's disable.  When you use Fast EtherChannel, the
> switch will use all the ports to move data. Better use of ports.  When you
> set up the EtherChannel, the switch will decide that these MAC address will
> use this port and these MAC address will use that port (I don't know the
> math for this).  If one of the port goes down, it will automatically use the
> other port(s) to forward the data.  This is the same as using two routers to
> load balance and backup.
>
> Albert
>
> -Original Message-
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
> Cristina Hoselins
> Sent: Wednesday, May 31, 2000 11:37 AM
> To: [EMAIL PROTECTED]
> Subject: FastEtherChannel!
>
> All,
> Fast Ether Channel is a trunking technology based on grouping together up to
> 4 full duplex 802.3 Fast Ethernets to provide fault-tolerant high-speed
> links between switches, routers, and servers...My questions to you are:
> How does it work? Which channel out of the four(2) channels is the default
> one? Does it look at the MAC address in order to foward packets!!
>
> Thank you all.
> Cristina
>
> 
> Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com
>
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Re: CCDA

[Darren Ward]

The ones at www.boson.com were good enough to give you a feel for the
exam.

Once again though, don't expect the practice exam to be a dump of the
Cisco test.
Expect to go through the objectives on CCO one-by-one until your are
confidant in them yourself.

I was surprised in the breadth that the real test asked but since I had
studied to the CCO objectives anyway it wasn't too bad.

Darren

Steven Smith wrote:

> Does anyone know of any practice exams or simulators for the CCDA?
>
> Thanks,
>
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Re: Fiber questions...

[Darren Ward]

I guess one thing to remember is that Multimode uses a LED as a light source
and Singlemode uses a Laser.

Since the laser provides a more focused and coherent pulse of light it can
travel through fibre over longer distances.

The multimode cable also has a larger core and does not require as high a
specification grade as single mode.
Single mode is usually of a much higher manufacturing quality and clarity as
well over multimode.

So in a laymans nutshell multimode uses a LED to communicate via a larger
core fibre over short distances (Up to 2km).
Single mode uses a Laser to communicate and can travel much longer distances
(90km without regeneration using LX)

I'm no optical engineer either so these are just the basics I've picked up
from study and experience so far.

Darren

"Andrew C. Ohnstad" wrote:

> Pardon the slightly off topicness of this but...
>
> I'm reading up on FDDI and GigE.  All this talk of multi-mode and
> single-mode fiber has my head spinning.
>
> Does anyone know of a site that lists in non-electrical engineering terms
> the differences between the two?  I've found a distance chart, so I know
> how far I can run each one, but I'm more interested in the 'why' without
> having to do 2 pages of higher math to understand the answer.
>
> Thanks!
>
> =-=Andrew C. Ohnstad, CCNA
> "Traveling At The Speed of Thought" --- Teenage FanClub
>
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SNA Device Types

[Darren Ward]

Question for all:

In the SNA hierarchy there are defined types 5,4,2 and 1 nodes.

>From what I've read so far I've assembled the following:

Type 5IBM Mainframe (Runs VTAM) SSCP
& PU5
Type 43705/3725/3745/3746 FEP/Communications ControllersPU4
Type 23174 Cluster Controller   PU2
Type 2Token Ring SNA GatewayPU2
Type 1Token Ring Device LU
Type 1TN3270 Terminals  SLU

Type 5 & 2Cisco Router acting as DSPU Concentrator  PU5
& PU2

Is this anywhere near close?

Does an ethernet client running a TN3270 session also appear as an SLU
or LU?

Sorry if this is basic but SNA is the area that I am definately weakest
and while I can configure up basic DLSW+ services I prefer to understand
the underlying principles.

Darren

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Re: BGP question

[Darren Ward]

Not at all.

In BGP both connections are considered active.

BGP as mentioned earlier is a distance vector EGP and so a best path based on
the AS path length is the default method for a BGP router to decide which
link it will use to send packets out of.

If the route to "Desination Network A" has a shorter path via ISP A than ISP
B then your router will send packets to ISP A.

However "Destination Network B" might have a shorter path via ISP B and so
that link will be used to send packets to that destination.

If one link fails then of course all destinations paths are shortest through
the remaining link and that's hw you achieve the circuit resiliency or
redundancy that you mentioned.

Darren

jeongwoo park wrote:

> Hellow group!!
> According to cisco press book, when company has two connections active to
> two different ISPs, BGP should be used.
> Could anybody tell me what is the result of connecting two active
> connections to two different ISPs?
> I know that one connection should be used as a backup line only while the
> other is active in order not to use BGP.
> Thanks in advance.
>
> 
> iWon.com   http://www.iwon.com why wouldn't you?
> 
>
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Errata for Giles Book, 1st Edition

[Darren Ward]

Hello All,

Does anyone have the URL for the errata for this book, I had it a long
time ago but have lost the bookmarks.

Cisco CCIE Study Guide by Roosevelt Giles.

Darren

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IOS 12.1 Dialer Weirdness

[Darren Ward]

Hi All,

Has anyone had problems with 12.1.2T and ISDN multilink using a dialer
profile?

I upgraded a 3640 from 12.0.4.T to 12.1.2.T and while everything else
worked the multilink PPP did not.

I'll elaborate, the dialer brought up BRI3/0 and BRI3/1 and made the 4
calls one after the other like it should and bound them into a virtual
interface but then the dialer started reporting errors saying LCP not
open when all 4 channels did successfully negotiate LCP and both they
and the virtual bundle showed LCP open. The Dialer showed spoofing.

The end result no pings or traffic was working across the link.

Downgraded the IOS and it all started miraculously working again!

Only difference is IP Plus to IP Plus Firewall.

Any thoughts?

Darren



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Re: BGP question

[Darren Ward]

Their ISP may also have used BGP Confederations at the edge to those
customers?

Darren

Brad Ellis wrote:

> Sounds like you guys were doing IBGP...
>
> -B
> "Dan West" <[EMAIL PROTECTED]> wrote in message
> [EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> > My former employer (an ISP) had BGP peering with our
> > upstream provider(Telco). As I understand it so far,
> > BGP4 is used to advertise routes between autonomous
> > systems. One day I ran a web-based traceroute to my
> > old haunt and it showed them having the same
> > autonomous system number as our bandwidth provider.
> > Were we unnecessarily using BGP? I don't understand
> > why our telco and we (the ISP) had the same AS number.
> >
> >
> > Am I misunderstanding the purpose of the AS number in
> > BGP?
> >
> > Many thanks.
> >
> > __
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> >
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Re: SLARP (Serial Line Address Resulation Protocol)

[Darren Ward]

It's probably important to note that this only works if the remote is
configured for HDLC serial encapsulation I believe?

Darren

John Swartz wrote:

> SLARP - Serial Line Address Resolution Protocol.
>
> SLARP is most commonly used with auto-install.
> Please note: the documentation and how it actually behaves, seems quite
> different.
>
> 1.  A router without a configuration boots
> 2.  Router determines the is no config, and attempts to enable all
> interfaces.
> 3.  Attempts to find an IP addresss
> A.  On LAN interfaces it sends a BOOTP request
> B.  On Serial Interface it sends out a SLARP Request
>
> A SLARP request is asking for the IP address of the device on the other end
> of a point-to-point link.
> The other device replies with it's own IP address.
> The Appendix of the ICRC books states:
> "The device will take the first available IP address on the subnet."
> In reality, it seems to work best if you have the IP address at the other
> end of .1 or .2
> If the existing device is .1, the new router with choose .2 and visa versa.
>
> 4.  Auto-install continues find network-confg file, determine router
> name, find routername-confg file, etc...
>
> John Swartz
> ccie, ccnp, ccdp, mcse+i, mcsd, cne
> Boson Software and Training
>
> ""Paree-huff, Andre"" <[EMAIL PROTECTED]> wrote in message
> 29CE62ADC71CD211A4EC00104B72113807DC8945@ALFEXC2">news:29CE62ADC71CD211A4EC00104B72113807DC8945@ALFEXC2...
> > Can someone please help me
> >
> > I'm trying to find a good explanation of SLARP. I have searched Cisco and
> > the web plus looked in several books. The most I can find is a line here
> or
> > there but nothing actually defining or explaining SLARP.
> >
> > Please reply directly to me as I don't always get a chance to read the
> group
> > during the week and need this info quickly.
> >
> > Thank you in advance for your help.
> >
> >
> > Thoughts to ponder:
> > If you're too big to be willing to do little things, you are probably too
> > little to be trusted with big things
> >
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Re: Frame Relay Switching

[Darren Ward]

If you want DLCI 16 on one interface to switch to DLCI 16 on the other AND
DLCI 18 on one interface to switch to DLCI 18 on the other then the config
below will do it for you.

Darren

!
frame-relay switching
!
interface serial 0
 encapsulation frame-relay
 frame-relay intf-type dce
 clock rate ?
 frame-relay route 16 interface serial 1 16
 frame-relay route 18 interface serial 1 18
!
interface serial 1
 encapsulation frame-relay
 frame-relay intf-type dce
 clock rate ?
 frame-relay route 16 interface serial 0 16
 frame-relay route 18 interface serial 0 18
!



So effectively you have two PVC's on each

Olden Pieterse wrote:

>
>
> Interface serial 0
> Frame-relay route 18 interface serial 1 16
>
> Interface serial1
> Frame-relay route 18 interface serial 0 16
>
> Thx
>
>   Olden Pieterse
>MCP , CCNA , BCMSN , BSCN , BCRAN
> Brainbench Certified CISCO Network Implementation Specialist
>   Technical Consultant
> Mobile : +27 82 410 8621
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Route Redistribution

[Darren Ward]

Hi All,

I have a question with using multiple redistrutions into a routing
process such as EIGRP.

Consider that you want to redistribute static routes into EIGRP and yet
you want more control than simply defining a default-metric for the
redistribution to get more atomic control.

Lets say in fact that some static routes that go via a 2Meg E1, another
few via a 10Meg Ethernet and yet some more via 100Meg FDDI from the same
router.

Now I know I can specify a route-map to match for a redistribution rule
via 'redistribute static metric x x x x x route-map x' command to
redistribute for example the FDDI routes but I don't seem able to input
more than one redistribute static metric command and so the routes via
the Ethernet and E1 would in fact seem not to be redistributed at all.

So the question remains, how can I redistribute static routes (or any
route really) and be able to define the different metrics at my whim?

Just to clarify: I know I can simply include these networks in my EIGRP
process but that's not the pupose of this exercise which is to push the
limits of route redistribution as part of my CCIE studies.

Darren (CCIE Wannabee)

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Re: admin distance question [7:47147]

[Darren Ward]

There is of course an exception to this rule :)

BGP Backdoor makes an external route go to an admin distance of 200 so IGP
routes take precedence without having to change the eBGP distance.

Case Study at:
http://www.cisco.com/warp/customer/459/14.html#A14.0

Darren Ward
(PGradCS, CCIE #8245, CCNP, CCDP, MCP)


On Sun, 23 Jun 2002, Dain Deutschman wrote:

> If the intent is to route the packets to the external AS, then the eBGP
> route would be the most favorable because more likely than not...eBGP is
the
> routing protocol between autonomous systems. In other words/for
example...if
> there is more than 1 route to 10.0.0.0/16, which is a network in an
external
> AS, then the eBGP route should be the prefered route ( since it is an
> external AS ). If the network were in the same AS, then an IGP route should
> be used but...it wouldn't be in the same AS if it was learned via eBGP. Am
I
> making sense? Someone please jump in or correct me if I am wrong.
> Thanks...Dain.
> ""bergenpeak""  wrote in message
> [EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> > Looking at the administrative distance values for the different
> > routing mechanisms.
> >
> > Why would eBGP have a lower admin distance for a route than
> > if learned via an IGP (like OSPF or ISIS)?  Why wouldn't
> > the default behavior be to prefer routes learned from the local
> > IGP rather than via eBGP?
> >
> > THanks




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Re: IP IRDP Feature? [7:56063]

[Darren Ward]

A number of operating systems support this including Microsoft and Sun for
finding a router.

Darren Ward
(PGradCS, CCIE #8245, SCSA, CCDP, MCP)


On Tue, 22 Oct 2002, Robert Massiache wrote:

> Hi,
> I do not understand where exactly and in what context do we enable this
> service on the interfaces. Could someone explain me...
>
> I would appreciate you help.
>
> thanks
>
> _
> Unlimited Internet access for only $21.95/month.  Try MSN!
> http://resourcecenter.msn.com/access/plans/2monthsfree.asp




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Re: 2610 801.Q Trunks [7:54481]

[Darren Ward]

Only ISL is unsupported, for that you require a fast ether interface.

Darren

Firesox wrote:

>I thought 802.1Q trunking is only supported on FastEthernet interfaces, not
>Ehternet interfaces.
>I was able to create 802.1Q trunks on 2610 router with ethernet interface.
>Does someone  know exactlly what version of IOS support 802.1Q trunks on
>2610 routers?
>
>Thanks
-- 
Darren Ward
(PGradCS, CCIE#8245, CCDP, SCSA, MCP)




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Re: Cisco 2000 Problems [7:59338]

[Darren Ward]

Campus Manager relies on CDP to search out and populate.

Can all switches see each other using CDP from your seed device?

Darren Ward
(PGradCS, CCIE #8245, SCSA, CCDP, MCP)


On Tue, 17 Dec 2002, Han Chuan Alex Ang wrote:

> I have some problems with the Cisco 2000,
>
> here is the scenario, I have add in all the necessary Cisco device and
> checked their attributes to be correct
>
> however , when I try a topology services in Campus Manager , I am only able
> to see the cisco 6006 and cisco 3548 switches , not a single 3524 and 3512
> switches that are supposed to be detected , any patches need to done ? and
> how do I go about doing it . thank




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Re: ISL & 802.1q in one switch [7:59512]

[Darren Ward]

I've done exactly this on the 2900 and 4000 platforms but as discussed
only certain cards for the 4000 support ISL.

The reason i used it was ISL to the routers and dot1q to clients.

This is because on a router sub-interface SNMP ID's are only created for
ISL so in order to monitor individual subints on the router it had to be
ISL.

Otherwise everywhere else we use standards dot1q.

Darren Ward
(PGradCS, CCIE #8245, SCSA, CCDP, MCP)


On Sun, 22 Dec 2002, Mark Johnson wrote:

> Yes, it is possible...  It is dependant upon the type of switch you are
> using...  If it is a 3550, 2950, 4000, etc... You would do
>
> switchport mode trunk
> switchport trunk encapsulation (dot1q or isl)
>
> This is off the top of my head, so verify the exact syntax...
>
> Not all switches support both so you will need to check your hardware and
> software...
>
> Mark
> ---Original Message---
> From: "[EMAIL PROTECTED]"
> Sent: 12/19/02 04:09 AM
> To: [EMAIL PROTECTED]
> Subject: ISL & 802.1q in one switch [7:59512]
>
> >
> > Hi folks,
>
> Does anybody have experience with using ISL en 802.1q within the same
> switch. I have ISL trunk between my access and distribution layer. Now I
> want to connect a firewall on my access switch with 802.1q trunking
> protocol. Is it possible? if the answer is YES, should I change anything
> in
> my configuration? My firewall talks 802.1q with the access switch and the
> vlan's should go from access to distribution switch which talk ISL.
>
> thanks,
> Mehrdad




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Re: RSVP [7:48456]

[Darren Ward]

Yes, 10ms is the target for sample interval for assessing voip and
real-time traffic.

No the RSVP value is independant of the FRTS values but YOU want to make
sure you have a match so you don't reserve more than you can provide or
under reserve for your requirements ;)

The golden formulae for FRTS is Tc=Bc/CIR
this gives 10msec = 8000 / 80 for the CCO example

That gives time interval only, you then specify Be for that time interval
as well as the mincir you would adaptive shape down to.

RSVP is based on reserving a 'guaranteed' amount of bandwidth and in the
example an RSVP statement exists for each subinterface which the sum
appears on the physical interface.

You might also want to specify RSVP priority queue for voice.

Darren Ward
(PGradCS, CCIE #8245, CCNP, CCDP, MCP)


On Wed, 10 Jul 2002, Luciano Borges Moraes wrote:

> Hi There.
>
> I've read the doc from
>
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/fqos_c/fqcprt5/qcfrsvfr.htm#xtocid20
>
> that try to explain how to configura RSVP on Frame-Relay multipoint
> sub-interfaces.
>
> My first question is, based on the example provided by that doc, what is
> the calculation that has to be made to get the correct values for "ip
> rsvp bandwidht" command on hub and spokes routers?
>
> The second question is about FRTS. I usually calculate the values for
> FRTS like the following:
> CIR=whole interface BW
> minCIR=CIR provided by ISP/TELCO/etc
> BC=minCIR/8
> BE=EIR/8
> EIR=(CIR-minCIR)
> TC=1/8s
>
> On the example provided by
>
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/fqos_c/fqcprt5/qcfrsvfr.htm#xtocid20,
> these values are calculated in a different manner.
> look the note bellow:
> Note   When FRTS is enabled, the Frame Relay Committed Burst (Bc) value
> (in bits) should be configured to a maximum of 1/100th of the CIR value
> (in bits per second). This configuration ensures that the FRTS token
> bucket interval (Bc/CIR) does not exceed 10 Ms, and that voice packets
> are serviced promptly.
>
> Is that info correct?
>
> Luciano.




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Re: OSPF problem [7:48463]

[Darren Ward]

For a start it appears you do not have a common subnet on the link between
the two devices so it'll complain about that.

Make the Router A interface 10.1.1.1/255.255.255.252 and Router B
10.1.1.2/255.255.255.252 then add

router ospf 1
 network 10.1.1.0 0.0.0.3 area 0

Every OSPF network must have a backbone or area 0.

The 'router ospf x' where x is simply a number you assign to identify that
routers OSPF process ID, it can even be different on different routers!

The shared areas though MUST match between routers.

Really I should just say RTFM but I won't ;o)
http://www.cisco.com/warp/public/104/1.html

Darren Ward
(PGradCS, CCIE #8245, SCSA, CCNP, CCDP, MCP)


On Wed, 10 Jul 2002, John Brandis wrote:

> I have the following error whilst playing with OSPF
>
> 12:52:40: %OSPF-4-ERRRCV: Received invalid packet: mismatch area ID, from
> backbone area must be virtual-link but not found from 10.1.4.20, Ethernet0
>
> I have 2 routers, Router A and Router B, back to back. Able to get the 2
> connected, however when I
> (Router A)
> router ospf 20
> network 10.1.10.0 0.0.0.0 area 20
>
> (RouterB)
> router ospf 20
> network 192.168.1.0 0.0.0.0 area 20
>
> Should I define different areas ?
>
> Thanks for your time
>
> John
>
>
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Re: CCIE lab w/Voice [7:52696]

[Darren Ward]

A couple of FXS cards and if you want an FXO card would see you through.

Darren Ward
(PGradCS, CCIE #8245, SCSA, CCDP, MCP)


On Wed, 4 Sep 2002, Ben W wrote:

> If I were to put together a lab for CCIE R&S, what would you recommend to
> get to cover the voice portion?  Any specific voice cards?  VWIC-xMFT-E1?




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Re: 1750 and MPLS [7:54016]

[Darren Ward]

Can't find it for any 1700 platforms.

IOS Feature Navigoator:
http://www.cisco.com/go/fn/

Darren Ward
(PGradCS, CCIE #8245, SCSA, CCDP, MCP)


On Wed, 25 Sep 2002, Jim Tickle wrote:

> We've pretty much exhausted the possibility that MPLS can run on a 2500
> series, but I've got a couple of 1750's, and perhaps they can help fill in.
> Does anybody know if there is a version of IOS for the 1750-2v's that will
> do MPLS (and perhaps voice with the same code)?
>
> The Tickler
>
>
>
>
>
> -
> Do you Yahoo!?
> New DSL Internet Access from SBC & Yahoo!




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Re: VPN Client [7:74205]

[Darren Ward]

Yes, the 3DES client will negotiate DES with a DES only router or pix.

It comes down to crypto policy configuration, it can only negotiate what's
on offer from the VPN gateway.

Darren

On Tue, 19 Aug 2003, Tunde Kalejaiye wrote:

> hi guys,
>
> will a vpn client that can run 3DES connect to a router running DES? if no
is
> it still possible to get the DES version? cant seem to find it on cisco
> website.
>
> regards,
>
> Tunde
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