snmp input queue full on c4500

Unanswered Question
Oct 4th, 2007

Hi,

we upgraded the c4500 SUPIV to 12.2.37SG.

1-2 weeks later we sensed that some switch does not reply the snmp packets and send the following message when snmp packets receive.

SNMP-3-INPUT_QFULL-ERR: Packet dropped due to input queue full.

We tried some method but the boot helped only.

The BUG tool did not help.

Regards

I have this problem too.
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David Stanford Sat, 10/06/2007 - 17:39

What does the output of show snmp show for packets input over 10 second intervals? This message above usually means that the switch is overwhelmed with snmp polling.

This could also be related to polling of the CISCO-ENHANCED-MEMORY-POOL-MIB

Try the following commands and see if the errors go away:

snmp-server view public-view dod included

snmp-server view public-view ciscoMemoryPoolMIB excluded

snmp-server view public-view ciscoEnhancedMemPoolMIB excluded

Then apply the view to the RO comm string

KAROLY KOHEGYI Sun, 10/07/2007 - 22:46

Hi Davistan ,

Thanks your answer.

Unfortunetly it did not help.

This row gave bad oid message.

snmp-server view public-view ciscoEnhancedMemPoolMIB excluded

i try to get simple snmp query ( snmp location )but it has given same result.

The switch is not overhelmed with polling.

the snmp traffic >>>

Gyor_Teleki_Sw1#debug snmp packets

SNMP packet debugging is on

Gyor_Teleki_Sw1#term mon

Gyor_Teleki_Sw1#sho clo

Gyor_Teleki_Sw1#sho clock

08:40:24.882 MET Mon Oct 8 2007

Gyor_Teleki_Sw1#sho clock

08:44:07.152 MET Mon Oct 8 2007

Gyor_Teleki_Sw1#

Oct 8 08:44:19: SNMP: Packet received via UDP from 10.42.10.227 on FastEther

2/48

Oct 8 08:44:19: %SNMP-3-INPUT_QFULL_ERR: Packet dropped due to input

queue full

Oct 8 08:44:19: SNMP: Queuing packet to 10.42.10.140

Oct 8 08:44:19: SNMP: V1 Trap, ent ciscoSyslogMIB.2, addr 192.168.151.122, g

rap 6, spectrap 1

clogHistoryEntry.2.12185 = SNMP

clogHistoryEntry.3.12185 = 4

clogHistoryEntry.4.12185 = INPUT_QFULL_ERR

clogHistoryEntry.5.12185 = Packet dropped due to input

clogHistoryEntry.6.12185 = 528018004

Oct 8 08:44:19: SNMP: Queuing packet to 10.42.10.227

Oct 8 08:44:19: SNMP: V1 Trap, ent ciscoSyslogMIB.2, addr 192.168.151.122, g

rap 6, spectrap 1

clogHistoryEntry.2.12185 = SNMP

clogHistoryEntry.3.12185 = 4

clogHistoryEntry.4.12185 = INPUT_QFULL_ERR

clogHistoryEntry.5.12185 = Packet dropped due to input

clogHistoryEntry.6.12185 = 528018004

Oct 8 08:44:19: SNMP: Packet sent via UDP to 10.42.10.140

Oct 8 08:44:19: SNMP: Packet sent via UDP to 10.42.10.227

Regards

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