From: Muralidhar Devarasetty (dhar_murali@xxxxxxxxxxx)
Date: Fri Jul 09 1999 - 12:35:12 GMT-3
Hi,
here is what I understand about LES/BUS...
If multiple vlans are configured on lan,appropriate elans has to created on
ATM,for this U may configure multiple sub interfaces on the same physical
I/F,and associate each sub I?F to each elan.In that case U have to
configure LES/BUS pair for every elan.Thats why LES/BUS are configured on
sub I/F. But LECS is common for all so it is created on main I/F.
This I tried out with placing LES/BUS pair on ATM switch itself.As well as
LES/BUS on ATM edge device.But I remember when I tried to configure LECS on
main i/f I faced the problem.I was sucessfull by configuring LECS on virtual
I/F.
Murali
----Original Message Follows----
From: chris <cdavy@fenix2.dol-esa.gov>
Reply-To: chris <cdavy@fenix2.dol-esa.gov>
To: "ccielab@groupstudy.com" <ccielab@groupstudy.com>, "'Ron Trunk'"
<rtrunk@xatlantic.com>
Subject: RE: Where does the LES/BUS go?
Date: Wed, 7 Jul 1999 15:45:37 -0400
Place the LES on a subinterface and the LECS on the main interface. The
LECS must pe placed on the main interface. I suppose if the LECS is on
another switch you could place the LES/BUS on the main interface. I
typically use subinterfaces for the LEC and the LES/BUS, as I was shown in
the CATM course.
Hope that helped,
Chris Davy
CCNP +ATM, CCDA
----------
From: Ron Trunk[SMTP:rtrunk@xatlantic.com]
Reply To: Ron Trunk
Sent: Wednesday, July 07, 1999 2:49 PM
To: ccielab@groupstudy.com
Subject: ATM: Where does the LES/BUS go?
OK, all you ATM whizzes out there. Can you help me with this (simple)
configuration?
I've been reading the Catalyst configuration guide on setting up LANE and
although I've never done it, I think I can get through setting it up. I
have one question though.
Does the LES/BUS go on the physical interface or the subinterface? Most
things I've read seem to say the subinterface, but the configuration guide
is a little schizophrenic -- It shows it both ways. Which is correct? Or
does it matter?
I'm assuming that I'll be asked to create a elan using the switch as the
LECS/LES/BUS. My "model" configuration looks like this:
(global)
lane database mydb
name default server-atm-address <nsap>
default-name default
int atm0
atm pvc 1 0 5 qsaal
atm pvc 2 0 16 ilmi
! bind lecs to database
lane config auto-config-atm-address
lane config database mydb
int atm0.1 multipoint
! configure les/bus
lane server-bus ethernet default
! configure client
lane client ethernet
ip address 172.16.1.1 255.255.255.0
Does this config look OK?
Thanks in advance for your help!
Ron
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