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Cisco Bug: CSCvu05955 - N9k: PFC mode config wiped out from port-channel interface with no member ports after reload

Last Modified

Jun 22, 2020

Products (55)

  • Cisco Nexus 9000 Series Switches
  • Cisco Nexus 9516 Switch
  • Cisco Nexus 3548 Switch
  • Cisco Nexus 3548-X Switch
  • Cisco Nexus 9396PX Switch
  • Cisco Nexus 31108TC-V Switch
  • Cisco Nexus 92304QC Switch
  • Cisco Nexus 3548-XL Switch
  • Cisco Nexus 9396TX Switch
  • Cisco Nexus 93108TC-FX Switch
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Known Affected Releases

7.0(3)I7(6)

Description (partial)

Symptom:
Switch configured with the "priority-flow-control mode off" command on uplink port-channels. If the port-channel member ports are removed for some reason and switch is reloaded, the "priority-flow-control mode off" command gets wiped out from the port-channel but is still present on the physical port.
If you re-add the "priority-flow-control mode off" command to the port-channel, the CLI accepts the config but doesn't get applied without any error. The members can't be re-added back into the port-channel due to config incompatibility.

Conditions:
When the switch is reloaded with member ports removed from the port-channel.
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