Cisco ASR 903 Guide

Layer 2 Solution
▀ Ethernet Virtual Circuit using Regular EFPs
▄ Cisco ASR 903 Router Design and Deployment Guide
10
OL-30526-01
Figure 1. Ethernet Virtual Circuit with Regular EFPs
ASR903-PE2
Gi0/1/2 Gi0/1/2
Gi0/1/0 Gi0/1/2Gi0/1/0Gi0/1/1
ASR903-PE1ASR903-CE1
Customer A
Site 1
ASR903-CE2
172.16.11.0/24 - SubnetB
172.16.11.0/24 – SubnetB
Customer A
Site 2
10 10 10
20 11
15 15
11 20 11
10
11 16 16
172.16.10.0/24 - SubnetA
172.16.10.0/24 – SubnetA
ASR903-CE1 Configuration
bridge-domain 10
member GigabitEthernet0/1/1 service-instance 10
!
bridge-domain 11
member GigabitEthernet0/1/1 service-instance 11
!
interface GigabitEthernet0/1/1
no ip address
negotiation auto
service instance 10 ethernet ! create service instance
encapsulation dot1q 10
rewrite ingress tag pop 1 symmetric ! to use BDI, pop is required.
! ! otherwise rewrite may not be needed.
service instance 11 ethernet
encapsulation dot1q 11
rewrite ingress tag pop 1 symmetric
!
interface BDI10 ! subnet A
ip address 172.16.10.1 255.255.255.0
!
interface BDI11 ! subnet B
ip address 172.16.11.1 255.255.255.0
ASR903-PE1 Configuration
bridge-domain 10 ! bridge-domain 10
member GigabitEthernet0/1/0 service-instance 10 ! vlan tag 10 for CE subnet A
member GigabitEthernet0/1/2 service-instance 10
!
bridge-domain 11
member GigabitEthernet0/1/0 service-instance 11 ! vlan tag 11 for CE1 subnet B
member GigabitEthernet0/1/2 service-instance 11
!
interface GigabitEthernet0/1/0
description interface to CE1
no ip address
negotiation auto
service instance 10 ethernet

Cisco ASR 903 Specifications

General

Brand	Cisco
Model	ASR 903
Category	Network Router
Language	English