R3204P16-HP Load Balancing Module High Availability Configuration Guide-6PW101

Packet Types

VRRP standard protocol mode defines only VRRP advertisement. Only the master in a VRRP group sends

VRRP advertisements periodically, and the backups do not send VRRP advertisements.

To realize load balancing, VRRP load balancing mode defines the following types of packets:

• Advertisement—VRRP uses the advertisements to notify the VRRP group state on the local router and

the information of the VF that is in the active state. Both the master and the backups send VRRP

advertisements periodically.

• Request—If a backup router is not the VF owner, it sends a request to ask the master for virtual MAC

address.

• Reply—After receiving a request, the master sends a reply to the backup router to allocate a virtual

MAC address. Upon receiving the reply, the backup router creates a VF corresponding to the virtual

MAC address, and then the backup router becomes the owner of this VF.

• Release—After a VF owner failed for a specified time, the router that takes over its responsibility will

send a release to notify the other routers in the VRRP group to delete the VF of the failed VF owner.

NOTE:

The format of the above four types of packets is similar to that of the advertisement in the VRRP standard

protocol mode. The difference is that a packet used in the load balancin

mode is appended with option

fields, which carry information for load balancing.

Configuring VRRP in the web interface

Configuration task list

Table 4 VRRP configuration task list

Task Remarks

Creating a VRRP group

Required

Create a VRRP group on a VRRP interface and configure the virtual IP address.

TIP:

Before creating a VRRP group on an interface, you must configure an IP address for

the interface and ensure that the virtual IP address to be configured is in the same

network segment as the IP address of the interface.

Configuring a VRRP group

Optional

Configure router priority, preemption mode, authentication mode, packet

attributes, and tracking function of the VRRP group.

Creating a VRRP group

Select High Availability > VRRP from the navigation tree to enter the VRRP interfaces page, as shown

in Figure 8. C

lick the icon corresponding to the interface to be configured to enter the VRRP

Configuration on Interface page, as shown in Figure 9. C

lick Add to enter the Create VRRP Group page.