[nsp] ATM interface errors

[Dennis Peng]

It's possible the SAR crashed. Did you seen any ATMPA-3-SARCRASH
errors in the syslog/console? CSCea32118 allows us to recover
automatically if the SAR crashes. Any crashes should be reported to
TAC so we can identify and fix the problem.

Dennis

Charles Sprickman [spork at inch.com] wrote:
> Hi,
> 
> Perhaps someone here familiar with DSL agg. on a PA-A3 can help me out
> here.
> 
> I have a DS3 ATM backhaul to Covad for DSL.  Last night I saw it drop out
> from the customer end, so I dialed in and had a look at the atm interface
> while I was waiting on the Covad NOC to pick up the phone.
> 
> The interface was showing up/up, but zero input packets, zero CRC errors,
> zero input errors.  I could see a loop when Covad looped the BPX we're
> plugged into and vice-versa (DS3 is just a x-conn from our cabinet to
> theirs), but still no traffic.  Clients with OAM enabled were showing OAM
> cells out, but none in.
> 
> Looking more closely at the interface stats, I saw that the "ignored"
> count was incrementing rapidly.  I bounced my side and everything slowly
> came back to normal.  What does "ignored" indicate on this interface?  We
> double-checked we were both set to "cbitplcp" and had cell-scrambling
> enabled.  According to the NOC, no changes tonight, and all they saw was
> the circuit bounce up/down at about the time I noticed my line was dead.
> 
> Any ideas what may have happened?  The circuit was (by my account) running
> clean.  Covad has no idea of what may have caused this, nor what we can do
> to make sure it doesn't happen again...
> 
> Any input appreciated.
> 
> Thanks,
> 
> Charles
> 
> --
> Charles Sprickman
> spork at inch.com
> 
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