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Danh mục sản phẩm

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.