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08-25-2018 06:58 AM - edited 03-05-2019 10:52 AM
Attemtping to put a port-channel into ports eth1/51-52 on a Nexus 93180 but receive the stated error.
I have tried numerous things and can't see to find out what is wrong. Any ideas?
Solved! Go to Solution.
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LAN Switching
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09-04-2021
07:28 AM
- last edited on
05-09-2023
03:46 AM
by
Translator
Bug ID : CSCvn01573
Switch# interface port-channel 10
Switch(config-if)# no switchport
Switch(config-if)# ip address 1.1.1.1/31
(config-if)#exit
Switch# interface Ethernet1/10
Switch(config-if)# no switchport
Switch(config-if)# logging event port link-status
Switch(config-if)# channel-group 10 mode active
command failed: port not compatible [Duplex Mode]
Solution/work around.... config the all physical member interfaces first and then at the end configure the port channel. Use below as a reference.
Switch# interface Ethernet1/10
Switch(config-if)# no switchport
Switch(config-if)# logging event port link-status
Switch(config-if)# channel-group 10 mode active
(config-if)#exit
Switch# interface port-channel 10
Switch(config-if)# no switchport
Switch(config-if)# ip address 1.1.1.1/31
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08-25-2018
11:10 AM
- last edited on
05-09-2023
03:45 AM
by
Translator
Paste the config here :
try adding command :
switchport trunk allowed vlan xxx ( xxx where your vlan number)
config t
interface eth1/51
switchport mode trunk
switchport trunk allowed vlan xxx
channel-group yyy mode active
add other config

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08-26-2018 12:30 AM
Hello,
in addition to the other post, check the hardware and software restrictions mentioned below for 100G ports:
• Port-channels are not supported on generation 1 100G line cards (N9K-X9408PC-CFP2) or generic
expansion modules (N9K-M4PC-CFP2).
• Port-channels are supported on devices with generation 2 (and later) 100G interfaces. (7.0(3)I3(1) and
later)
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08-26-2018 12:43 PM
Different question, so let's say I have 2x 9k nexus as core in vpc domain, and 2 pairs of 93k in vpc domains as access layer - so dual sided vpc topolgy. Should you track core links under vpc configs on access switches, then on core switches track edge router/out bound device links under vpc config? See attached doc for similar topology.
http://www.cisco.com/c/en/us/support/docs/switches/nexus-7000-series-switches/200996-vPC-Object-Tracking.html#anc3
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10-24-2019 05:33 PM
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10-25-2019 01:33 AM
Hello,
I seem to recall that you have to disable the port channel interface before adding a new member interface...
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09-04-2021
07:28 AM
- last edited on
05-09-2023
03:46 AM
by
Translator
Bug ID : CSCvn01573
Switch# interface port-channel 10
Switch(config-if)# no switchport
Switch(config-if)# ip address 1.1.1.1/31
(config-if)#exit
Switch# interface Ethernet1/10
Switch(config-if)# no switchport
Switch(config-if)# logging event port link-status
Switch(config-if)# channel-group 10 mode active
command failed: port not compatible [Duplex Mode]
Solution/work around.... config the all physical member interfaces first and then at the end configure the port channel. Use below as a reference.
Switch# interface Ethernet1/10
Switch(config-if)# no switchport
Switch(config-if)# logging event port link-status
Switch(config-if)# channel-group 10 mode active
(config-if)#exit
Switch# interface port-channel 10
Switch(config-if)# no switchport
Switch(config-if)# ip address 1.1.1.1/31
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09-15-2021 05:16 PM
Pretty old I figured it out long time ago but thanks
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03-26-2025 12:21 PM
Thank you @ashfaq82 that worked!
