Cisco ASR 9000 Series Configuration Guidelines

Figure above depicts the configuration for L2PT in reverse mode:
At R1:
!
interface GigabitEthernet0/1/0/1
negotiation auto
!
interface GigabitEthernet0/1/0/1.1 l2transport
encapsulation untagged
rewrite ingress tag push dot1q 100 symmetric
ethernet egress-filter strict
!
interface GigabitEthernet0/1/0/2
negotiation auto
!
interface GigabitEthernet0/1/0/2.1 l2transport
encapsulation untagged
rewrite ingress tag push dot1q 200 symmetric
ethernet egress-filter strict
!
interface GigabitEthernet0/1/0/3
negotiation auto
!
interface GigabitEthernet0/1/0/3.1 l2transport
encapsulation dot1q 500
rewrite ingress tag pop 1 symmetric
l2protocol cpsv reverse-tunnel
ethernet egress-filter strict
!
l2vpn
bridge group examples
bridge-domain r1-bridge
interface GigabitEthernet0/1/0/1.1
!
interface GigabitEthernet0/1/0/2.1
!
interface GigabitEthernet0/1/0/3.1
!
!
!
!
At R2:
!
interface GigabitEthernet0/5/0/4
negotiation auto
!
interface GigabitEthernet0/5/0/4.1 l2transport
encapsulation dot1q 500
rewrite ingress tag pop 1 symmetric
l2protocol cpsv reverse-tunnel
ethernet egress-filter strict
!
interface GigabitEthernet0/5/0/5
negotiation auto
!
interface GigabitEthernet0/5/0/5.1 l2transport
encapsulation untagged
rewrite ingress tag push dot1q 100 symmetric
ethernet egress-filter strict
!
interface GigabitEthernet0/5/0/6
L2VPN and Ethernet Services Configuration Guide for Cisco ASR 9000 Series Routers, IOS XR Release 6.3.x
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Ethernet Features
L2PT in the Reverse Mode with Protocol Frame Tagging

Cisco ASR 9000 Series Specifications

General

Series	ASR 9000
Category	Network Router
Modular Design	Yes
Redundancy	Yes (Hardware and Software)
Operating System	Cisco IOS XR
Interfaces/Ports	10G, 40G, 100G, 400G Ethernet
Expansion Slots	Varies by model
Routing Protocol	BGP, OSPF, IS-IS, EIGRP
Management	CLI, SNMP, NETCONF
Power Supply	Redundant
Port Density	Varies by model
Power Supply Options	AC, DC
Memory	Varies by model
Storage	Varies by model
Dimensions	Varies by model
Weight	Varies by model