RE: Cell Mode MPLS - Simulate with L2 LS1010

From: Andrew Lissitz \(alissitz\) (alissitz@cisco.com)
Date: Thu Aug 25 2005 - 11:48:41 GMT-3

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Very cool Tom!!!! Thanks

Andrew

-----Original Message-----
From: Tom Lijnse [mailto:Tom.Lijnse@globalknowledge.nl]
Sent: Thursday, August 25, 2005 3:41 AM
To: Andrew Lissitz (alissitz); ccielab@groupstudy.com
Subject: RE: Cell Mode MPLS - Simulate with L2 LS1010

Hi Andrew,

I apologize for answering this two weeks after your initial email, but I
figured you might still benefit from it.

The answer is that (as far as I know) there's no way the LS1010 can
actually function as an LSR, as it lacks the L3 capability, but what you
can do is map a PVP through the LS1010 and then have the two routers use
cell-mode MPLS across the PVP.

At least this will give you an opportunity to play around with some of
the cell-mode MPLS commands.

I have it running in my lab as follows:

On the LS1010:

interface ATM0/1/0
 description "To router R4"
!
interface ATM0/1/1
 description "To router R5"
 atm pvp 37 interface ATM0/1/0 37

And then on the routers:

Router R4:

interface ATM2/0
 no ip address
 no atm ilmi-keepalive
!
interface ATM2/0.37 tag-switching
 ip address 10.4.5.4 255.255.255.0
 tag-switching atm control-vc 37 32
 tag-switching atm vpi 37 vci-range 33-65535 tag-switching ip

Router R5:

interface ATM2/0
 no ip address
 no atm ilmi-keepalive
!
interface ATM2/0.37 tag-switching
 ip address 10.4.5.5 255.255.255.0
 tag-switching atm control-vc 37 32
 tag-switching atm vpi 37 vci-range 33-65535 tag-switching ip

And of course you'll have to enable your favorite IGP on the ATM
sub-interfaces.

(By the way, in case you're wondering where the 37 in the configs came
from, that's just my default 'random number').

I hope this helps you getting at least some use out of the LS1010.

Regards,

Tom Lijnse

CCIE # 11031
Global Knowledge

-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Andrew Lissitz (alissitz)
Sent: woensdag 10 augustus 2005 3:40
To: ccielab@groupstudy.com; comserv@groupstudy.com
Subject: Cell Mode MPLS - Simulate with L2 LS1010

Does anyone know how to simulate cell mode with a LS1010 that does not
have a L3 module? I may be getting a LS1010 without a L3 module and
want to practice cell mode... I already have the ATM interfaces for my
other routers.

TIA

Andrew

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