Symptom

Issuing on a port-channel interface doesn't remove the speed configuration in the running configuration. Example: 513E-A-17-N93180YC-FX-2(config-if)# show run int po1 membership !Command: show running-config interface port-channel1 membership !Running configuration last done at: Mon Apr 26 20:09:29 2021 !Time: Mon Apr 26 20:09:34 2021 version 9.3(7) Bios:version 05.43 interface port-channel1 speed 10000 interface Ethernet1/6 speed 10000 channel-group 1 mode active 513E-A-17-N93180YC-FX-2(config-if)# no speed 10000 513E-A-17-N93180YC-FX-2(config-if)# show run int po1 membership !Command: show running-config interface port-channel1 membership !Running configuration last done at: Mon Apr 26 20:09:46 2021 !Time: Mon Apr 26 20:09:48 2021 version 9.3(7) Bios:version 05.43 interface port-channel1 speed 10000 interface Ethernet1/6 speed 10000 channel-group 1 mode active

Conditions

This behavior only occurs on 10G Copper DAC cables. This condition occurs when the speed is statically set, followed with 'no duplex' then 'duplex full'. Once this is done, the duplex configuration can be removed but the speed configuration cannot.

Workaround

ascii reload will return the interface to a state in which the speed can be removed.

Further Problem Description