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Cisco Bug: CSCur22743 - CB40-brk: FP-reg: Duplicate mcast traffic seen after vdc suspend

Last Modified

Jul 05, 2018

Products (1)

  • Cisco Nexus 7000 Series Switches

Known Affected Releases


Description (partial)

Duplicate traffic for VDC suspend trigger on routers in a LAN. This issue can be hit if a one of the switch has L3 multicast route oifs/oils with multiple owners and when the oif/oil is going away on non-DR.


(,, uptime: 01:01:23, pim mrib ip igmp
  Incoming interface: Null, RPF nbr:
  Outgoing interface list: (count: 1)
    Vlan101, uptime: 00:03:13, pim, mrib

This can happen on a stand alone IHR or LAN LHR switches which have PIM and IGMP ownership for the same route oif/oil and there is a delete happening for the oif.
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