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Cisco Bug: CSCuq99943 - Watchdog Exception for hulc/sisf component

Last Modified

Feb 12, 2018

Products (1)

  • Cisco Catalyst 2960 Series Switches

Known Affected Releases

15.2(1)E

Description (partial)

Symptom:
Switch crashes with following symptoms:

in the crashinfo:
--------------------------------
External Interrupt Routine Interrupted by Watchdog Exception (0x2000)!


in the show version:
--------------------------------
System returned to ROM by watchdog timer expired
System image file is "flash:c2960s-universalk9-mz.152-1.E3.bin"
Last reload reason: Unknown reason

Crashinfo data need to be validated by TAC in order to confirm involved processes.

Conditions:
IOS: 15.2(1)E3, 
TRAFFIC: IPv6: DHCP or NDP traffic, 
FEATURES: DHCP guard configured
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
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  • Known Fixed Releases
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