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service-ha delay-time 1
service-ha preempt-time 360
#
service-location 1
location slot 1 engine 0 backup slot 2 engine 0
#
service-instance-group slz
service-location 1
#
nat instance nat id 1
service-instance-group slz
#
return
12.6.2 Example for Configuring HA Backup Between Two CGN
Devices for the NAT Service (Centralized Deployment Mode)
This section provides an example for configuring HA backup between two CGN devices
deployed in centralized mode for the NAT service, including networking requirements,
networking diagrams, scenario requirements, configuration roadmap, data preparation,
configuration procedure, and configuration files.
Networking Requirements
In centralized deployment mode, independent CGN devices CGN1 and CGN2 are deployed near
two CRs on a MAN. A VRRP tunnel is established between GE interfaces on CGN1 and CGN2.
Users want to implement HA backup on CGN1 and CGN2 for the NAT service and use the
VRRP protocol to determine the active/standby relationship, and implement association between
HA and VRRP.
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.
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