04-24-2016
02:56 AM
- last edited on
03-25-2019
04:38 PM
by
ciscomoderator
When reading documentation about how to configure port-channel interfaces with the role of virtual switch link among two VSS enabled chassis, I couldn't find any reference about specifically configure the VSL port-channels as "switchport" o "no switchport". According to what I understand configuring these two port channels as "no switchport" is the right approach. However, I would be grateful if somebody could confirm it. Would there be any impact if they were configured as "switchports"? I tested this last "switchport" config in the lab and everything seemed to work right, too. I mean the ordinary config:
interface port-channel 1
switch virtual link 1
no shutdown
vs this alternate one with the port-channel configured as a "switchport" that it seems to work too
interface port-channel 1
switchport
switch virtual link 1
no shutdown
Thanks in advance
Kind regards
Octavio
Solved! Go to Solution.
04-24-2016 08:49 AM
What platform are you using? It appears there are 2 versions of this. The 4500x works as switch port and the 6800 works only as no switch port.
BTW, it used to be all switch ports for all platforms.
HTH
04-24-2016 10:14 AM
Hi,
Yes, if its switch port than it needs to be trunked.
Your config should look like this (per interface). Most of these commands are added by default when you convert the interface to VSL I am not sure about "switchport mode trunk" if this command is not added by default, you can add it to the Portchannel and the physical interfaces should inherit that.
interface TenGigabitEthernetx/x/x
description VSL Link Member
switchport mode trunk
no lldp transmit
no lldp receive
no cdp enable
channel-group 16 mode on
service-policy output VSL-Queuing-Policy
HTH
04-24-2016 08:49 AM
What platform are you using? It appears there are 2 versions of this. The 4500x works as switch port and the 6800 works only as no switch port.
BTW, it used to be all switch ports for all platforms.
HTH
04-24-2016 09:41 AM
Thank's a lot, Reza. That's the explanación. It's a 4500X. If configured as switchports, do I hace to worry about the allowed VLANS on the VSL port-channels? Do I have to allow every configured VLAN on the switch?
Thanks in advance
Octavio
04-24-2016 10:14 AM
Hi,
Yes, if its switch port than it needs to be trunked.
Your config should look like this (per interface). Most of these commands are added by default when you convert the interface to VSL I am not sure about "switchport mode trunk" if this command is not added by default, you can add it to the Portchannel and the physical interfaces should inherit that.
interface TenGigabitEthernetx/x/x
description VSL Link Member
switchport mode trunk
no lldp transmit
no lldp receive
no cdp enable
channel-group 16 mode on
service-policy output VSL-Queuing-Policy
HTH
04-24-2016 01:36 PM
Thank you, Reza. I've just tested it and it works fine. Every defined VLAN is sent over the trunk of the VSL port channel.
Thanks a lot for your help
Octavio
04-24-2016 03:32 PM
Glad to help and thanks for the rating!
Good Luck
Reza
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide