From: Niall (niallr@xxxxxxx)
Date: Sun Aug 01 1999 - 16:05:37 GMT-3
Not knowing just what ATM hardware is going to be in the lab, I'd also suggest
making sure you know the differences between the LANE module and the ATM Fabric
Integration module. Minor syntax differences in the configuration of the LANE
database is probably the primary distinction, aside from the obvious need for a
n
external connection for the LANE module. I discovered this because I thought I
could simply cut and paste my config from one to the other. NOPE. I suspect the
LANE module to be more likely since it supports token ring...
Over the past couple weeks I've been fortunate enough to set up 10 lightstreams
and 5500s with a mix of TR and ethernet. If anyone is interested, I logged a lo
t
of command output and configuration info to text files. After I delete
confidential info, I'd be willing to share them. Not a substitute for hands-on
time, but better than nothing :-)
Niall
Chuah Eng Wee wrote:
> Hi Derek,
>
> THe most common problem I encountered during work is that
> the LEC is not up.
>
> A few possible problems :
> - LEC cannot find LECS. So check to make sure that the LECS address is
> correct.
> Make sure u have the two commands in your LECS major interface,
> lane config auto-config-atm-address
> lane config database DATABASE_NAME
> assuming u use cisco automatic addressing
>
> - LEC cannot find LES. Have u configured the appropriate LES/BUS in the
> correct sub-interface ?? Is the LES/BUS ATM address in your LECS database
> ?? The proctor might change the LES address in the LECS database, then your
> LEC will not be up.
>
> - for SUP I, the ESI portion of the ATM address is tied to the sup engine,
> so if u change the sup engine, and u have a LES/BUS defined there, then
> your ATM address will change as well. If this is not updated into the LECS
> database, then your LEC won't be able to join as well.
>
> - Are the necessary pvcs setup ?? The proctor might remove those necessary
> pvcs so u don't get desired address when u do a show lane default. So
> remember thos pvcs. Can't remember off hand, I think is
> 1 0 5 for qsaal
> 1 0 16 for ilmi
>
> - if we are asked to configure SSRP, they might change the sequence of the
> LES address in the LECS database so that our config doesn't work as
> expected. The same for redundant LECS as well.
>
> HTH
> Eng Wee
>
> At 08:38 PM 7/31/99 +0100, Derek Fage wrote:
> >Hi there,
> >
> >I think I'm just about OK with ATM LANE on routers and Cat 5K ATM blades.
> >What I was wondering was what sort of problems I should look out for if I
> >find it in the lab.
> >
> >When troubleshooting ATM (other than physical cable connections), what steps
> >should I go through ?
> >
> >Derek...
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