How to configure ruijie EG backup redundancy?

Introduction of VRRP

VRRP (Virtual Router Redundancy Protocol, Virtual Router Redundancy Protocol) is designed in active-standby mode to ensure that when the main routing device fails, the backup routing device can perform function switching without affecting internal and external data communication, and does not need to be modified. Parameters of the internal network.

Applied scenarios

The enterprise has two gateway routers,one active and one standby. Redundant backup is required between the active and standby. Under normal circumstances, the Internet is accessed through the active gateway router. When the active gateway router fails, it can automatically switch to the backup gateway routers, you can enable the vrrp function on the two gateway routers to implement the redundant backup function.

Case of configuration

a) Requirement

1) There are two routers connected tothe egress device in the intranet

2) Two routers are required to do gateway backup, and only one gateway address is required to be set in the intranet

3) It is required that when the uplink interfaces or lines of the two routers are disconnected, the network can be automatically switched to ensure the smooth network.

b) Network Topology

c) Key configure points

1) EG basic network configuration(deployed according to the actual network design)

2) EG internal network portconfiguration VRRP

3) The client gateway address is configured with a virtual gateway

d) Configure steps

Configuration on EG1

Ruijie>enable

Ruijie#configure terminal

Ruijie(config)#interface GigabitEthernet0/0

Ruijie(config-if-GigabitEthernet 0/0)#ipaddress 192.168.1.1 255.255.255.0        //Configure the actual ip of the interface

Ruijie(config-if-GigabitEthernet0/0)#vrrp 1 ip 192.168.1.254       // configure vrrpvirtual address

Ruijie(config-if-GigabitEthernet0/0)#vrrp 1 priority 120        // configure the vrrp priority of the interface, the larger the priority, the default is 100

Ruijie(config-if-GigabitEthernet0/0)#vrrp 1 track GigabitEthernet 0/1 30        // After detecting that the uplink port f1/0 is down, the priority is reduced by 30, and it is switched to the standby gateway

Ruijie(config-if-GigabitEthernet0/0)#end

Ruijie#write

Configuration on EG2

Ruijie>enable

Ruijie#configure terminal

Ruijie(config)#interface GigabitEthernet0/0

Ruijie(config-if-GigabitEthernet 0/0)#ipaddress 192.168.1.2 255.255.255.0   

Ruijie(config-if-GigabitEthernet0/0)#vrrp 1 ip 192.168.1.254   

Ruijie(config-if-GigabitEthernet0/0)#end

Ruijie#write

Verification

Using 'sh vrrp brief' and 'show vrrp 1' command to check the VRRP negotiation status: