[c-nsp] 12810 oddness for halloween =)

[Antonio Soares]

Check this bug:

++++++++++++++++++++++++++++
CSCtd90953 Bug Details 

[FIA-3-PAKERR] E5 suffers ping delay after CSC Switchover  

Symptom:
Ping delay for E5 interfaces see

Conditions:
Seen after performing CSC Switchover

Workaround:
Reload the Linecard
++++++++++++++++++++++++++++

I saw this problem a few days ago. We had to reload the router.

Regards,

Antonio Soares, CCIE #18473 (R&S/SP)
amsoares at netcabo.pt

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Drew Weaver
Sent: sábado, 30 de Outubro de 2010 17:57
To: cisco-nsp
Subject: [c-nsp] 12810 oddness for halloween =)

So,

Oct 30 11:29:55 EDT: %MBUS-6-FABANALYZED: Switch card in slot 17 analyzed
Oct 30 11:29:55 EDT: %MBUS-6-FABCONFIG: Switch Cards 0x7F (bitmask)
Primary Clock is CSC_0
Fabric Clock is Redundant
Bandwidth Mode : 40Gbps Bandwidth
Oct 30 11:29:55 EDT: %FABRIC-3-ERR_HANDLE: Force CSC switchover on error FIA
HALT from slot 8
Oct 30 11:29:55 EDT: %FABRIC-3-ERR_HANDLE: Primary CSC switched over to slot
16

Didn't look like it was traffic impacting, and that is great news!

The not so great news is, after this happened if I send SNMP requests to the
router:

[root at d3 ~]# /usr/local/nagios/libexec/check_ifstatus -C comm -H
lo0.ip.add.ress
ERROR: No snmp response from lo0.ip.add.ress (alarm timeout)

[root at d3 ~]# /usr/local/nagios/libexec/check_ifstatus -C comm -H
other.interface.ip.address
OK: host 'other.interface.ip.address', interfaces up: 7, down: 0, dormant:
0, excluded: 0, unused: 0 |up=7,down=0,dormant=0,excluded=0,unused=0

The SNMP requests to the lo0 ip address don't always time out but if they do
work they are always about 10 seconds slower than the ones to the normal
interfaces.

Prior to this CSC switchover, this nagios plugin and everything worked fine.

My concern is not so much that I can't send SNMP requests to the loopback IP
on the router, but what other traffic could be similarly impacted in it's
current state.

I'm running ver: 12.0(33)S5 which isn't super old but should be stable.

Has anyone seen anything like this before or am I "just lucky?"

-Drew

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