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Cisco Bug: CSCtc72553 - SIP-601 %MBUS_SYS-3-NOBUFFER & %FIB-2-FIBDISABLE: Fatal error

Last Modified

Jun 21, 2016

Products (1)

  • Cisco 12000 Series Routers

Known Affected Releases


Description (partial)

Symptoms: An E5 linecard on a Cisco 12000 crashes.

Conditions: This symptom occurs with high traffic on OC48, E5, and possibly 
corrupt packets (MPLS packets without an MPLS label) received on the linecard.

The logs show the following:
Sep 30 01:41:01.958 PRC: %MBUS_SYS-3-NOBUFFER: Message from slot 1 in stream 1
Sep 30 01:41:02.062 PRC: %FIB-2-FIBDISABLE: Fatal error, slot 1: IPC Failure:
Sep 30 01:41:02.062 PRC: %RP-4-RSTSLOT: Resetting the card in the slot:
 1,Event: CEF failure
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
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  • Related Community Discussions
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