Maipu Administration Guide

Configure the Timer of the VRRP Load-Balance Protocol

In the VRRP load-balance protocol, perform the corresponding actions according to the corresponding timer, so as to maintain the relevant state.

Configuration Conditions

Before configuring the timer of the VRRP load-balance protocol, first complete the following tasks:

Switch the VRRP mode to the VRRP load-balance protocol mode
Enable the VRRP load-balance protocol group

Configure the Period Interval of the Hello Packet

The Hello packet is mainly responsible for announcing some information to the neighbors and maintaining the relationship between neighbors, so it is necessary to keep the sending periods of the Hello packets consistent among neighbors in the same group.

Table 8-6 Configure the period interval of the Hello packet

Step	Command	Description
Enter the global configuration mode	configure terminal	-
Enter the interface configuration mode	interface interface-name	Mandatory
Configure the period interval of the Hello packet of the VRRP load-balance protocol group	vrrp vrid timers hello Hello–time [ hold Hold–time [preserved Preserved–time [delay-vote Delay-vote–time]]]	Mandatory Configure the period interval of the Hello packet. Here, vrid is the VRRP group number; Hello–time specifies the sending period of the Hello packet of the VRRP group; Hold–time specifies the hold time of the VRRP group neighbor; Preserved–time specifies the reserve time of the virtual MAC of the VRRP group; Delay-vote–time specifies the delay election time of the VRRP group.

Configure the Period Interval of the Keep Packet

The Keep packet is responsible for advertising the virtual MAC address of the virtual router to the L2 switch, and refreshing the L2 MAC entries of the switch.

Table 8-7 Configure the period interval of the Keep packet

Step	Command	Description
Enter the global configuration mode	configure terminal	-
Enter the interface configuration mode	interface interface-name	Mandatory
Configure the period interval of the Keep packet of the VRRP load-balance protocol group	vrrp vrid timers keep keep-time	Mandatory Configure the period interval of the Keep packet. Here, vrid is the VRRP group number; Keep-time specifies the period of sending the Keep packet of the VRRP load-balance protocol group.

Configure the Zombie Timer of the Virtual MAC Address

After the owner of the virtual MAC fails, the virtual MAC will experience the reserved state, and reach the zombie state. The configuration of the zombie state needs the timer larger than the age time of the bottom terminal ARP.

Table 8-8 Configure the zombie timer of the virtual MAC address

Step	Command	Description
Enter the global configuration mode	configure terminal	-
Enter the interface configuration mode	interface interface-name	Mandatory
Configure the zombie time of the virtual MAC address of the VRRP load-balance protocol group	vrrp vrid timers zombie zombie-time	Mandatory Configure the zombie timer of the virtual MAC address. Here, vrid is the VRRP load-balance protocol group number, and Zombie-time specifies the zombie time of the virtual MAC of the VRRP load-balanceprotocol group.

Configure the Age Timer of the Forwarding Terminal

If the terminal is not online for a long time when managing the terminal at the forwarding layer, it will be aged to release the resources occupied by the terminal, thereby refreshing the terminal table items of the group.

Table 8-9 Configure the age timer of the terminal at the forwarding layer

Step	Command	Description
Enter the global configuration mode	configure terminal	-
Enter the interface configuration mode	interface interface-name	Mandatory
Configure the age timer of the forwarding terminal of the VRRP load-balance protocol group	vrrp vrid timers forwarding ageing forwarding-ageing-time	Mandatory Configure the age time of the terminal at the forwarding layer. Here, vrid is the VRRP group number, and forwarding-ageing-time specifies the age time of the terminal at the forwarding layer in the VRRP group.

Configure the Detection Timer of the Terminal at the Forwarding Layer

When managing the terminal at the forwarding layer, detect the online state of the terminal regularly, so as to update the state of the terminal at the local.

Table 8-10 Configure the detection timer of the terminal at the forwarding layer

Step	Command	Description
Enter the global configuration mode	configure terminal	-
Enter the interface configuration mode	interface interface-name	Mandatory
Configure the detection timer of the terminal at the forwarding layer in the VRRP load-balance protocol group	vrrp vrid timers forwarding dtct forwarding-dtct-time	Mandatory Configure the detection timer of the terminal at the forwarding layer. Here, vrid is the VRRP load-balance protocol group number, and forwarding-dtct-time specifies the detection time of the terminal at the forwarding layer in the VRRP load-balance protocol group.