Does ISR4431 support port channels?

pkemp · ‎03-29-2020

I want to aggregate interfaces on my ISR4431 to a Cat9500 switches and run dot1q sub-interfaces in a 'router-on-a-stick' mode. Running IOS XE 15.5.

Peter

marce1000 · ‎03-30-2020

- Seems to do according to this article :

https://thenetworkstack.com/new-cisco-isr4000-series-routers/

M.

-- Each morning when I wake up and look into the mirror I always say ' Why am I so brilliant ? '
When the mirror will then always repond to me with ' The only thing that exceeds your brilliance is your beauty! '

Scott Leport · ‎03-31-2020

I believe the OP is asking about whether or not port-channel sub-interfaces are supported.

In my experience they can, but you can try it by attempting to create a new port-channel on your router (just create the interface then the sub-interface in the first instance).

For example, if using 802.1Q trunks between your switch and router:

int port-channel 1

!

int-port-channel 1.100

encapsulation dot1q 100

ip address 1.2.3.4 255.255.255.0

int port-channel 1.200

encapsulation dot1q 200

ip address 3.4.5.6 255.255.255.0

Then port-channel 1 would be tied to your physical interfaces.