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LACP on VSS 6500

VSS1#sh etherchannel su

Group  Port-channel  Protocol    Ports
34     Po34(SD)        LACP      Gi1/1/1(I)     Gi2/1/1(I) 

 

VSS2#sh etherchannel su

Group  Port-channel  Protocol    Ports
34     Po34(SD)        LACP      Gi1/1/4(I)     Gi2/1/4(I) 

 

VSS1#sh int po34
Port-channel34 is down, line protocol is down (notconnect)

VSS1#sh int Gi1/1/1
GigabitEthernet1/1/1 is up, line protocol is up (connected)

VSS1#sh int Gi2/1/1
GigabitEthernet2/1/1 is up, line protocol is up (connected)

Why does not the LACP?

3 Replies 3

Mark Malone
VIP Alumni
VIP Alumni

are you trying to connecting lacp between the 2 6500s in the vss setup or are you connecting to another switch ?

If its between the 2 6500s in vss the port-channel needs to have switch virtual link set under it

can you post your configs of the ports that your trying to connect

the problem is solved!
it was the same switch virtual Domain, we get a same LACP sys-id

configure different switch virtual domain and everything works!

thank

 

Steve Fuller
Level 9
Level 9

Hi,

What does the port-channel 34 interface connect to? All the links are showing with an I (Individual) flag which is typically because the interface is not receiving LACPDU from the downstream device. You can verify this with the show lacp counters command.

This is normally a configuration error on the downstream device where it's not configured for active link aggregation. For example a Cisco switch with the command channel-group group mode on would give this error.

Regard

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