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Cisco Bug: CSCun67554 - OSPF/OSPFv3 crash when executing "show tech-support ospf/ospfv3"

Last Modified

Aug 06, 2018

Products (1)

  • Cisco Nexus 7000 Series Switches

Known Affected Releases


Description (partial)

OSPFv2/OSPFv3 crashes with signal 11 on executing "show ip ospf internal forwarding-
address" or "show ospfv3 vrf all internal forwarding-address" respectively. 

A similar OSPFv2/OSPFv3 crash is also observed when executing "show tech-support 
ospf" or "show tech-support ospfv3" respectively as "show ip ospf internal 
forwarding-address" and show ospfv3 vrf all internal forwarding-address" are parts of 
the respective OSPF and OSPFv3 tech-supports.

The presence of external type-5 LSAs or NSSA external type-7 which have some forwarding 
address set on them may lead to a crash when the user may try to collect the OSPF/OSPFv3 
tech-support. The crash happens in scenarios when the forwarding address is set on these LSAs 
but the forwarding address is not reacheable via OSPFv2/OSPFv3.
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Bug Details Include

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