LACP failing between 2 C9500-16X switches

[Damon2021]

Hi,

I have 2 C9500-16X with 2 cables connecting each other. I would like to configure the interlinks as port channel LACP. I am getting below error:

%ETC-5-L3DONTBNDL2: Te1/0/14 suspended: LACP currently not enabled on the remote port.

Here are the configs:

Cat9500-SW1:

!

interface Port-channel1
switchport trunk allowed vlan 10,20,30
switchport mode trunk
switchport nonegotiate
dampening
bandwidth 10000000
load-interval 30
carrier-delay msec 0
end

!

interface TenGigabitEthernet1/0/14
switchport trunk allowed vlan 10,20,30
switchport mode trunk
switchport nonegotiate
dampening
bandwidth 10000000
load-interval 30
carrier-delay msec 0
channel-protocol lacp
channel-group 1 mode active
end

interface TenGigabitEthernet1/0/15
switchport trunk allowed vlan 10,20,30
switchport mode trunk
switchport nonegotiate
dampening
bandwidth 10000000
load-interval 30
carrier-delay msec 0
channel-protocol lacp
channel-group 1 mode active
end




Cat9500-SW2:

!

interface Port-channel1
switchport trunk allowed vlan 10,20,30
switchport mode trunk
switchport nonegotiate
dampening
bandwidth 10000000
load-interval 30
carrier-delay msec 0
end

!
interface TenGigabitEthernet1/0/14
switchport trunk allowed vlan 10,20,30
switchport mode trunk
switchport nonegotiate
dampening
bandwidth 10000000
load-interval 30
carrier-delay msec 0
channel-protocol lacp
channel-group 1 mode active
end

!
interface TenGigabitEthernet1/0/15
switchport trunk allowed vlan 10,20,30
switchport mode trunk
switchport nonegotiate
dampening
bandwidth 10000000
load-interval 30
carrier-delay msec 0
channel-protocol lacp
channel-group 1 mode active
end

Thanks

[Damon2021]

Awesome! I knew a bug was involved as it was acting super weird. I will have to visit the site tomorrow and then try the solution. Is reloading and "Ctrl+Break" key work to get to the rommon?

[MHM Cisco World]

https://www.cisco.com/c/en/us/support/docs/switches/catalyst-9300-series-switches/216944-troubleshoot-bootloader-rommon-and-pas.html

[Damon2021]

That fixed it! The channel is up and in a bundle. Thanks all for the help!

[David Ruess]

Yup, and it looks like @MHM Cisco World beat me to it but that's definitely not right. MAC address should be unique and I believe is derived from the first interface bundles in the port-channel but not quite sure.

That's also another reason why I had you create the port channel in the actual interface rather than creating the port-channel separate and then adding interfaces. If the port channel is created without an interface to derive its MAC address then its blank...or all 0's like you have there sometimes. So I was on the right track, I just didn't communicate that as my intention. Funny enough I just learned about that a few weeks ago.

Hope that solves your issue.

-David