R3303-HP 6600/HSR6600 Routers High Availability Configuration Guide

ManualsBrandsHP ManualsNetwork HardwareHP HSR6602-XG Router

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Ste

Command

Remarks

3. Configure VF tracking.

• Configure the VF tracking

function to monitor a specified

track entry and specify the

value by which the weight

decreases:

vrrp vrid virtual-router-id weight

track track-entry-number

[ reduced weight-reduced ]

• Configure the VF tracking

function to monitor an AVF on a

specified router:

vrrp vrid virtual-router-id track

track-entry-number

forwarder-switchover

member-ip ip-address

Use either method.

The VF tracking function is not

configured by default.

Enabling ARP entry backup

After a master/backup switchover occurs in a VRRP group, the new master might need to learn ARP

entries of the hosts on the LAN, causing traffic interruption.

The ARP entry backup function enables the master to send the dynamic ARP entries of hosts through VRRP

advertisements to other VRRP group members. In this way, when a master/backup switchover occurs, the

new master does not need to learn the ARP entries again.

Configuration prerequisites

Before you enable the ARP entry backup function, create a VRRP group and configure a virtual IP address

for it.

Configuration guidelines

• The ARP entry backup function is supported on Layer 3 Ethernet interfaces or subinterfaces.

• You can enable the ARP entry backup function when VRRP operates in either standard mode or

load balancing mode. Only the master can initiate ARP entry backup.

• Enable ARP entry backup on all VRRP group members for the function to take effect correctly.

• ARP entry backup affects VRRP performance. HP recommends not enabling the ARP entry backup

function for multiple VRRP groups.

• A VRRP group member might need some time to back up ARP entries before it becomes the new

master. To reserve enough ARP entry backup time, configure a proper preemption delay for the

VRRP group based on the number of ARP entries.

Configuration procedure

To configure ARP entry backup:

Ste

Command

Remarks

1. Enter system view.

system-view N/A

2. Enter the specified interface

view.

interface interface-type

interface-number

N/A