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Cisco Bug: CSCur24930 - SNMP process hungs on mixed 3750 stack

Last Modified

Sep 14, 2019

Products (171)

  • Cisco IOS
  • Cisco Catalyst 3560-12PC-S Compact Switch
  • Cisco Catalyst 2960S-F48FPS-L Switch
  • Cisco Catalyst 3560E-24TD-S Switch
  • Cisco Catalyst 3560X-48P-S Switch
  • Cisco ME 3400EG-2CS-A Switch
  • Cisco Catalyst 2960-24TC-L Switch
  • Cisco Catalyst 2960S-24PD-L Switch
  • Cisco Catalyst 2960-48TT-S Switch
  • Cisco Catalyst 3560E-48PD-SF Switch
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Known Affected Releases

12.2(55)SE5 15.0(2)SE

Description (partial)

Symptom:
- SNMP process hungs on mixed 3750 stack. All incoming SNMP packets are dropped and following log observed:
"SNMP-3-INPUT_QFULL_ERR: Packet dropped due to input queue full"

- console/vty lines hung upon execution of interface related commands and cannot be cleared,
- it's impossible to change port configurations,
- ports in "admin down" state cannot be brought up

Conditions:
- mixed 3750 stack - eg. composed of 3750E, 3750G and 3750V2 switches,
- stack is polled for statistics via SNMP

Related Community Discussions

3750G-12S Stack Error: <key>CSCur24930</key>
Error: <key>CSCur24930</key> This errors description matches my issues exactly. 4x 3750G-12S stack, IOS 12.2(55)SE11 Been having this issue for some time now.  Months ago I concluded it was the snmp-server ifindex persist command, so removed that.  After about six weeks the issue showed up again. Have to manually reload stack to temporarily clear up issue, and then remove SNMP.  I have re-added SNMP now and from Solarwinds removed the EnergyWise and any other non important SNMP polls. Waiting to see if the ...
Latest activity: Mar 26, 2019
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