[c-nsp] CRC16 in 'show cont fia' on GSR 12810

[Sascha E. Pollok]

Hello Drew,

> SLOT 1:Mar 27 08:00:03 EDT: %FIA-3-LOS: LOS for slot 21 was cleared. 
> SLOT 1:Mar 27 08:01:21 EDT: %FIA-3-LOS: LOS for slot 21 was detected.
> SLOT 1:Mar 27 08:01:25 EDT: %FIA-3-LOS: LOS for slot 21 was cleared.
> SLOT 1:Mar 27 08:01:43 EDT: %FIA-3-LOS: LOS for slot 21 was detected.
> SLOT 1:Mar 27 08:01:47 EDT: %FIA-3-LOS: LOS for slot 21 was cleared.
> SLOT 1:Mar 27 08:02:09 EDT: %FIA-3-LOS: LOS for slot 21 was detected.
> SLOT 1:Mar 27 08:02:15 EDT: %FIA-3-LOS: LOS for slot 21 was cleared.
> SLOT 1:Mar 27 08:05:24 EDT: %FIA-3-LOS: LOS for slot 21 was detected.
>
> So we shutdown slot 21 temporarily and we haven't seen that message again, so I can only deduce that possibly Slot 21 is bad and hopefully not SLOT 1 =)

was that "sh contr fia" you posted as seen from slot 1? i.e.
execute-on sl 1 sh contr fia ?

Sascha

> -Drew
>
>
> -----Original Message-----
> From: Sascha E. Pollok [mailto:nsp-list at pollok.net]
> Sent: Wednesday, March 31, 2010 1:31 PM
> To: Drew Weaver
> Cc: cisco-nsp at puck.nether.net
> Subject: Re: [c-nsp] CRC16 in 'show cont fia' on GSR 12810
>
> Hello Drew,
>
>> Slot:     18         19         20         21         22
>> Name:    sfc0       sfc1       sfc2       sfc3       sfc4
>>       --------   --------   --------   --------   --------
>> los    0          0          0          0          0
>> state  Off        Off        Off        Off        Off
>> crc16  2          2          2          0          2
>>
>> is it normal to see crc16s on the connection between the LCs and the SFCs?
>
> we have also seen those coming up from time to time. However,
> if those are not increasing, the cause might simply be a CSC
> failover, linecard insertion (don't know for sure) or whatever.
> 2 crc16 errors should not do harm. We saw those constantly increasing
> when we had a faulty CSC in a 12008.