Sometimes when we purchase a L2 service from a service provider, we need to have our L2 protocols tunneled.

ASR920 platform gives the operator three option to choose from:

• l2protocol tunnel
• l2protool peer
• l2protocol forward

mac-address-table evc-xconnect l2pt-forward-all

https://www.cisco.com/c/en/us/td/docs/routers/asr920/configuration/guide/ce/b_ce_xe-313s-asr920-book/b_ce_xe-313s-asr920-book_chapter_01.html#concept_91BDC34D96D54C30984DD2EA2A916AF5

2020#show ethernet service instance id 200 inter gig 0/0/9 platform