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Cisco Bug: CSCtc43521 - During soft link recovery, PIM flaps seen with other PIM neighbors

Last Modified

Feb 15, 2018

Products (6)

  • Cisco IOS
  • Cisco Catalyst 6500 Series Virtual Switching Supervisor Engine 720 with 10GE uplinks
  • Cisco ME 6524-GS Ethernet Switch
  • Cisco Catalyst 6500 Series Supervisor Engine 32 / MSFC2A
  • Cisco ME 6524-GT Ethernet Switch
  • Cisco Catalyst 6500 Series Supervisor Engine 720 / MSFC3

Known Affected Releases


Description (partial)

Symptoms: During soft link recovery, PIM is found to be flapping on other links. 
 Conditions: The symptom is observed on a Cisco WS-6509-E that is running Cisco
 IOS Release 12.2(33)SXI2a. The flaps are seen frequently with default OSPF and
 BGP timers while rarely with OSPF hello-interval 1s and BGP keepalive of 4. It
 can also be seen with Cisco IOS release 12.2(33)SXI1.
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Bug Details Include

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