4000 Router Series High Availability Command Reference

Use undo vrrp ipv6 vrid timer advertise to restore the default.

Syntax

vrrp ipv6 vrid virtual-router-id timer advertise adver-interval

undo vrrp ipv6 vrid virtual-router-id timer advertise

Default

The master in an IPv6 VRRP group sends VRRP advertisements at an interval of 100 centiseconds.

Views

Interface view

Predefined user roles

network-admin

Parameters

virtual-router-id: Specifies an IPv6 VRRP group by its virtual router ID in the range of 1 to 255.

adver-interval: Specifies an interval for the master in the specified IPv6 VRRP group to send VRRP

advertisements, in the range of 100 to 4095 centiseconds.

Usage guidelines

The master in an IPv6 VRRP group periodically sends VRRP advertisements to declare its presence. You

can use this command to configure the interval at which the master sends VRRP advertisements.

HP recommends that you set the VRRP advertisement interval to be greater than 100 centiseconds to

maintain system stability.

The routers in an IPv6 VRRP group can have different intervals for sending VRRP advertisements. The

master in the VRRP group sends VRRP advertisements at the specified interval and carries the interval

attribute in the advertisements. After a backup receives the advertisement, it records the interval in the

advertisement. If the backup does not receive a new VRRP advertisement from the master when the timer

(3 × VRRP advertisement sending interval + Skew_Time) expires, it regards the master as failed and takes

over as the master.

Large network traffic might disable a backup from receiving VRRP advertisements from the master within

the specified time and trigger an unexpected master switchover. To solve this problem, you can use this

command to configure a larger interval.

Examples

# Configure the master in IPv6 VRRP group 1 to send VRRP advertisements at an interval of 500

centiseconds.

<Sysname> system-view

[Sysname] interface ethernet 1/1

[Sysname-Ethernet1/1] vrrp ipv6 vrid 1 timer advertise 500

Related commands

display vrrp ipv6

vrrp ipv6 vrid track

Use vrrp ipv6 vrid track to associate an IPv6 VRRP group with a track entry and control master switchover

in the VRRP group in response to changes (such as uplink state changes) detected by the track entry.