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Cisco Bug: CSCuj82708 - vPC+ : Clipper sets ftag=0 for multicast pkt

Last Modified

Feb 13, 2018

Products (5)

  • Cisco Nexus 7000 Series Switches
  • Cisco Nexus 7000 10-Slot Switch
  • Cisco Nexus 7000 4-Slot Switch
  • Cisco Nexus 7000 18-Slot Switch
  • Cisco Nexus 7000 9-Slot Switch

Known Affected Releases


Description (partial)

multicast packets from CE to FP may get ftag=0 set, which brings about unpredictable forwarding at the next FP switch. Some packets are flooded while some packets are discarded at the next switch.

Have peer-link and vpc legs in different modules
Shut peer-link
then shut keepalive link
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