Maipu Administration Guide

Configure VRRP Load Balance

Network Requirements

Device1 and Device2 belong to two VRRP groups at the same time; Device1 is Master in group1 and Backup in group2; Device2 is Backup in group1 and Master in group2.
PC1 forwards data via Device1 and PC2 forwards data via Device2, realizing the load balance.

Network Topology

VRRP load balance networking

Figure 5-7 VRRP load balance networking

Configuration Steps

Step 1: Configure VLAN and add the port to the corresponding VLAN.(Omitted)

Step 2: Configure the IP address of the interface.(Omitted)

Step 3: Create the VRRP group 1.

#Configure the VRRP group 1 on Device1; the virtual IP address is 10.1.1.3 and the priority is 110.

Device1#configure terminal
Device1(config)#interface vlan 2
Device1(config-if-vlan2)#vrrp 1 ip 10.1.1.3
Device1(config-if-vlan2)#vrrp 1 priority 110
Device1(config-if-vlan2)#exit

#Configure the VRRP group 1 on Device2; the virtual IP address is 10.1.1.3.

Device2#configure terminal
Device2(config)#interface vlan 2
Device2(config-if-vlan2)#vrrp 1 ip 10.1.1.3
Device2(config-if-vlan2)#exit

Step 4: Create VRRP group 2.

#Configure the virtual IP address of VRRP group2 as 10.1.1.4 on Device1.

Device1(config)#interface vlan 2
Device1(config-if-vlan2)#vrrp 2 ip 10.1.1.4
Device1(config-if-vlan2)#exit

#Configure the virtual IP address of VRRP group2 as 10.1.1.4 on Device2 and configure the priority as 110.

Device2(config)#interface vlan 2
Device2(config-if-vlan2)#vrrp 2 ip 10.1.1.4
Device2(config-if-vlan2)#vrrp 2 priority 110
Device2(config-if-vlan2)#exit

Step 5: Check the result.

#View the status of VRRP in group1 and group2 on Device1.

Device1#show vrrp
Interface vlan2 (Flags 0x1) 
  Pri-addr : 10.1.1.1 
  Vrf : 0 
  Virtual router : 1 
    Virtual IP address : 10.1.1.3 
    Virtual MAC address : 00-00-5e-00-01-01 , installed into HW 
    Depend prefix:10.1.1.1/24 
    State : Master 
    Normal priority : 110 
    Currnet priority : 110 
    Priority reduced : 0 
    Preempt-mode : YES 
    Advertise-interval : 1 
    Authentication Mode : None 
 
  Virtual router : 2 
    Virtual IP address : 10.1.1.4 
    Virtual MAC address : 00-00-5e-00-01-02 
    Depend prefix:10.1.1.1/24 
    State : Backup 
    Master addr : 10.1.1.2 
    Normal priority : 100 
    Currnet priority : 100 
    Priority reduced : 0 
    Preempt-mode : YES 
    Advertise-interval : 1
    Authentication Mode : None

#View the status of VRRP in group1 and group2 on Device2.

Device2#show vrrp
Interface vlan2 (Flags 0x1) 
  Pri-addr : 10.1.1.2 
  Vrf : 0 
  Virtual router : 1 
    Virtual IP address : 10.1.1.3 
    Virtual MAC address : 00-00-5e-00-01-01 
    Depend prefix:10.1.1.2/24 
    State : Backup 
    Master addr : 10.1.1.1 
    Normal priority : 100 
    Currnet priority : 100 
    Priority reduced : 0 
    Preempt-mode : YES 
    Advertise-interval : 1 
    Authentication Mode : None 
 
  Virtual router : 2 
    Virtual IP address : 10.1.1.4 
    Virtual MAC address : 00-00-5e-00-01-02 , installed into HW 
    Depend prefix:10.1.1.2/24 
    State : Master 
    Normal priority : 110 
    Currnet priority : 110 
    Priority reduced : 0 
    Preempt-mode : YES 
    Advertise-interval : 1 
    Authentication Mode : None

We can see that Device1 serves as Master of VRRP group1 and Backup of VRRP group2. In contrast with Device1, Device2 serves as Master of VRRP group 2 and Backup of VRRP group 1. When one device fails, two PCs forward data via the other device. This realizes the load balance and backup for each other.