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Cisco Bug: CSCuo24944 - N7K: after configuring FEX port, the port unusable as a standard port

Last Modified

Nov 27, 2020

Products (8)

  • 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 10-Slot Switch

Known Affected Releases

6.2(10)FM(0.24) 6.2(6a) 6.2(8) 6.2(8)S26 7.1(0)D1(0.130)

Description (partial)

Some traffic like CDP, LACP, UDLD, etc... won't be handled by CPU.
Only receiving traffic is affected. CPU transmits those PDU without any problem even during the issue.

A port previously configured as a FEX fabric port won't work properly after configured as a normal port.
No need to connect FEX to this port. Only configuring and no shut as a FEX fabric port is enough to see this issue.

This issue is line card independent.
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Bug Details Include

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