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Cisco Bug: CSCvu00825 - N7K - M2 - LACP PDUs classified in default queue when received on L3 port-channel

Last Modified

Oct 16, 2020

Products (9)

  • CiscoPro Workgroup EtherSwitch Software
  • Cisco Nexus 7000 10-Slot Switch
  • Cisco Nexus 7000 4-Slot Switch
  • Cisco Nexus 7700 6-Slot Switch
  • Cisco Nexus 7700 18-Slot Switch
  • Cisco Nexus 7000 18-Slot Switch
  • Cisco Nexus 7000 9-Slot Switch
  • Cisco Nexus 7700 2-Slot Switch
  • Cisco Nexus 7700 10-Slot Switch

Known Affected Releases


Description (partial)

A Nexus 7000 Series Switch with M2 Line Cards will not place received LACP PDUs into the strict priority queue when the ingress port channel is L3.  The PDUs will instead be placed in the default queue.  Under heavy congestion scenarios, this could lead to LACP PDU loss on ingress ports.

Nexus 7000 Series Switch
M2 Line Card
L3 Port-Channel with LACP
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