12.6.5 Example For Configuring Inter-Chassis Ha Backup For Nat64 Services In Centralized Deployment Scenarios - Huawei NetEngine80E Configuration Manual - Reliability

HUAWEI NetEngine80E/40E Router
Configuration Guide - Reliability
ip address 10.0.0.2 255.255.255.0
vrrp vrid 10 virtual-ip 10.0.0.3
admin-vrrp vrid 10 ignore-if-down
vrrp vrid 10 priority 120
vrrp vrid 10 track service-location 21 reduced 50
#
service-location 21
location slot 2 engine 0
remote-backup interface GigabitEthernet3/1/7 peer 10.0.0.1
vrrp vrid 10 interface GigabitEthernet3/1/7
#
service-instance-group 21
service-location 21
#
ds-lite instance dslite1 id 21
port-range 4096
service-instance-group 21
ds-lite address-group group1 group-id 1
section 0 60.1.2.3 mask
ds-lite outbound any address-group group1
local-ipv6 240E:3:D000::12 prefix-length 128
remote-ipv6 240E:A3:D000:: prefix-length 41
ds-lite alg all
ds-lite filter mode full-cone
#
return
12.6.5 Example for Configuring Inter-chassis HA Backup for NAT64
Services in Centralized Deployment Scenarios
NAT64 applies at the late stage of IPv6 development. At this stage, terminals support only IPv6
access but IPv4 access is required. You can deploy NAT64 to provide IPv4 access. This section
provides an example for configuring inter-chassis HA backup for NAT64 services in centralized
deployment scenarios.
Networking Requirements
As shown in the following figure, in centralized deployment scenarios, CGN1 and CGN2 are
deployed around two CRs on the IP MAN. Configure the two CGNs to implement the following
requirements:
l
l
l
l
After the configuration is complete, service traffic switches to the backup CGN if the master
CGN fails, ensuring service continuity.
Issue 02 (2014-09-30)
The two CGNs establish a VRRP channel through GE interfaces.
The two CGNs work in master/backup mode and their master/backup status is determined
by VRRP.
HA is associated with VRRP.
Inter-chassis HA backup is provided for NAT64 services.
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