12-31-2021 11:43 PM
Hi Everyone,
I wanna configure LACP etherchannel between 4500X and 6807 Catalyst switches. But it does not work. The etherchannel is L2 and has 4 10G ports. BTW mode on works successfuly. But it's not desired. both switches are VSS pair. I upgraded both switches to Cisco suggested IOS-XE version but the problem didn't solved.
I tried all order of configuraion:
In both cases the 'sh etherc su' command show me suspended state.
Any idea might help.
Tnx in advance
01-01-2022 12:13 AM
Hello,
most likely you are trying to build the port channel between non-compatible modules. What cards are you using for the port channel ?
You can also try:
VSS(config)# interface port-channel X
VSS(config-if)# no mls qos channel-consistency
01-01-2022 12:40 AM
the linecard of 6807 switch that I use for etherchannel is C6800-8P10G-XL
01-01-2022 12:51 AM
Hello,
the switch logs should tell you why the ports are not bundling. do you see anything in there ?
What if you configure:
no port-channel standalone-disable
Do all individual interfaces remain suspended ?
01-08-2022 12:35 AM
After this command the output of 'sh etherc su' indicates 'I' not suspended
01-01-2022 11:04 AM
Hello
Are these directly connected or interconnected via fibre risers?
Have you tried using statc PC or even PAGP instead of LACP
01-01-2022 11:08 PM
They are connected through LC-LC patch panel. Mode on (static) port-channel works without problem. B\the problem is with LACP and PAGP
01-01-2022 11:48 PM
Hello.
it probably has something to do with the switch virtual domain/switch virtual link config. What do you have configured under the port channel interfaces and the VSS member switches ?
01-08-2022 12:35 AM
They are all default configuration. Nothing special.
01-02-2022 03:26 AM
Hello @sinaa._.ak
I do remember having the same issue myself in which the PC didn’t come up when using link aggregation negotiation, I did manage to fix but I cannot think how!
Would you be able to share the PC configuration for both the 6500/4500 PC please, maybe that would jog my memory?
Just one thing, have you manually stipulated the LACP protocol on the physical interfaces?
int x/x
channel-protocol LACP
01-08-2022 12:36 AM
hi
'channel-protocl LACP' does not solved the issue.
01-08-2022 05:27 AM
Hello
Can you share your present interface and port-channel configuration also the output from the following:
show etherchannel detail
show etherchannel load-balance
show etherchannel port-channel
show lacp neighbor
show lacp sys-id
debug lacp
07-17-2023 06:11 AM
Please reply with the solution as I might be having this same problem
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