![Huawei Quidway NetEngine40E Configuration Manual - Reliability Download Page 1424](http://html.mh-extra.com/html/huawei/quidway-netengine40e/quidway-netengine40e_configuration-manual-reliability_1694531424.webp)
# Configure a user-side unicast VRRP backup group for CGN2 and the switch.
[CGN2]
interface LoopBack1
[CGN2-LoopBack1]
ip address 8.8.8.1 255.255.255.0
[CGN2-LoopBack1]
vrrp vrid 1 peer-ip 8.1.1.1
[CGN2-LoopBack1]
vrrp vrid 1 priority 150
[CGN2-LoopBack1]
vrrp vrid 1 track interface GigabitEthernet3/0/0 reduced 60
[CGN2-LoopBack1]
vrrp vrid 1 track interface GigabitEthernet2/0/1.10 reduced 60
[CGN2-LoopBack1]
vrrp vrid 1 track service-location 1 reduced 60
[CGN2-LoopBack1]
quit
Step 9
Configure an HA group for the CGN, and bind the HA group to the user-side unicast VRRP
backup group.
# Bind the HA group on CGN1 to the user-side VRRP backup group.
[CGN1]
service-location 1
[CGN1-service-location-1]
vrrp vrid 1 interface LoopBack1
[CGN1-service-location-1]
quit
# Bind the HA group on CGN2 to the user-side VRRP backup group.
[CGN2]
service-location 1
[CGN2-service-location-1]
vrrp vrid 1 interface LoopBack1
[CGN2-service-location-1]
quit
Step 10
Configure an RBP on the CGN device.
# Configure an RBP on CGN1.
[CGN1]
remote-backup-profile natbras
[CGN1-rm-backup-prf-natbras]
service-type bras
[CGN1-rm-backup-prf-natbras]
backup-id 10 remote-backup-service natbras
[CGN1-rm-backup-prf-natbras]
peer-backup hot
[CGN1-rm-backup-prf-natbras]
vrrp-id 1 interface LoopBack1
[CGN1-rm-backup-prf-natbras]
quit
# Configure an RBP on CGN2.
[CGN2]
remote-backup-profile natbras
[CGN2-rm-backup-prf-natbras]
service-type bras
[CGN2-rm-backup-prf-natbras]
backup-id 10 remote-backup-service natbras
[CGN2-rm-backup-prf-natbras]
peer-backup hot
[CGN2-rm-backup-prf-natbras]
vrrp-id 1 interface LoopBack1
[CGN2-rm-backup-prf-natbras]
quit
NOTE
The same VRRP backup group must be specified in the remote-backup-profile view and the service-
location view.
Step 11
Configure a user-side sub-interface on the CGN device.
# Configure a user-side sub-interface on CGN1.
[CGN1]
interface GigabitEthernet2/0/1.10
[CGN1-GigabitEthernet2/0/0.10]
user-vlan 2010
[CGN1-GigabitEthernet2/0/0.10]
remote-backup-profile natbras
[CGN1-GigabitEthernet2/0/0.10]
bas
[CGN1-GigabitEthernet2/0/0.10-bas]
access-type layer2-subscriber default-domain
authentication natbras
[CGN1-GigabitEthernet2/0/0.10-bas]
authentication-method bind
[CGN1-GigabitEthernet2/0/0.10]
quit
# Configure a user-side sub-interface on CGN2.
[CGN2]
interface GigabitEthernet2/0/1.10
[CGN2-GigabitEthernet2/0/1.10]
user-vlan 2010
HUAWEI NetEngine80E/40E Router
Configuration Guide - Reliability
12 CGN Backing Up HA Configuration
Issue 02 (2014-09-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
1407