Recommended setting is LACP. On will work if LACP is not an option, but misconfigured PO can cause traffic blackhole.

HTH,

jerry

I'm very confused by jeye comments.

I know for a fact that WLC 5508 does not support " channel-group 1 mode active"

Bottom line, can you connect a WLC 5508 to a pair of Nexus 7000 using vPC ?

If yes, can I use the following command to setup vPC on each Nexus ?

interface Ethernet1/1
  switchport
  switchport mode trunk
  switchport trunk native vlan 100
  channel-group 1 mode on
  no shutdown
interface port-channel1
  switchport
  switchport mode trunk
  switchport trunk native vlan 100
  vpc 1

Thank you

That is fine on the Nexus side.

What I am saying is, WLC will not have the "vpc" command option. All you can do is regular port-channel.

HTH,

jerry

hi,

its absolutely possibe.

1. ensure you  enabled LAG on WLC

2. Assign 0 as vlan id on management interface (untagged), assuming u only hav management interaface.

if u have other AP manager interface then configure vlan id as 0 for those int also.

3.in both nexus,configure portchannel with vPC, assign it on physical interface(same as wht u hav mentioned above)

it should work if you follow the above procedure.

because i am having 2 no of 5508 and 2 no of nexus 7010, the above setup works fine.

Regards

Arun

+919900097880

But how do you enable port-channeling on the actual 5508?

Does it automatically bundle all uplink ports?

I know with the 7ks all configs have to match or else it won't bring up the port-channel.

Adam

I haven't worked with the WLC 5508 but from the configuration guide you need to enable LAG and reboot the device -

http://www.cisco.com/c/en/us/td/docs/wireless/controller/7-2/configuration/guide/cg/cg_ports_interfaces.html#wp1386054

Jon

Yeah I understand how to do that part and have it enabled already. I just thought there would be more to it on the 5508 since its an appliance. Even though its not a switch IOS persay I was thinking it would still port-channel the same as a switch.

Thanks