Metro ethernet on cisco ASR 1001-x

[paul amaral]

Currently we have metro ethernet termination on a cisco 6500 using the following config

gig0/1

switcport

switchport mode trunk

switchport trunk encapsulation dot1q

This terminates multiple customer's metro lines on the a trunk that is supplied to us by the provider as an NNI.

We then have SVI vlans for each customer.

When looking at the ASR 1001-x, yes i know its not a switch, there is no way to create a trunk interface but is there another way to terminate an NNI which will handle multiple customer metro-e lines ? The only thing i see is to create a service instance and enable sub dot1q interfaces. Since i cannot test this right now i have no idea if this will work. 

on the ASR:

!
interface GigabitEthernet0/0/3
no ip address
negotiation auto
service instance 10 ethernet
!
!
interface GigabitEthernet0/0/3.303
encapsulation dot1Q 303

ip addr x.x.x.x
!

Can anyone confirm if this is possible or if there is another way to configure metro ethernet NNI trunks on an ASR?

thanks Paul

[balaji.bandi]

As per your description that should work. here is reference guide and examples :

https://www.cisco.com/c/en/us/td/docs/interfaces_modules/shared_port_adapters/configuration/ASR1000/fixed_ethernet_linecard/b_asrfelcconf/b_asrfelcconf_chapter_011.html#task_1233716

[paul amaral]

link not working.

[xAdventix]

Subinterfaces with the dot1q tag are how I've always terminated this scenario. Should work like a treat :) 

[paul amaral]

so this is possible on an ASR? do you have config examples.