07-08-2019 01:06 PM
So I have been reconfiguring a 4500x pair into VSS today and I have seen some configurations where the virtual link 1 and 2 port channels are shared between ports on each switch.
So port 1 on sw 1 and port 1 on sw 2 is part of a port-channel assigned to virtual link 1
and port 2 on sw 1 and port 2 on sw 2 is part of port-channel assigned to virtual link 2
I configure it so that two ports on each switch belong to same port-channel? Both ways seem to be working, but which is the correct way?
07-08-2019 01:19 PM
As per cisco recomendation config - Switch 1 have a Virtual link 1, Switch 2 have a Virtual Link 2
07-08-2019 01:43 PM - edited 07-08-2019 01:45 PM
Hello
That seems to be correct-
Example:
SW1
switch virtual domain 12
switch 1
exit
interface range x/x x
channel-group 10 mode on
interface port-channel 10
switchport
switch virtual link 1
no shutdown
exit
SW2
switch virtual domain 12
switch 2
exit
interface range x/x x
channel-group 10 mode on
interface port-channel 10
switchport
switch virtual link 2
no shutdown
exit
07-08-2019 01:45 PM
07-08-2019 05:59 PM
Is is best practice to use a different Portchannel id per switch but it should not make a difference is you use the same id as Portchannel group numbers are locally significant.
HTH
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