R0106-HP MSR Router Series High Availability Configuration Guide(V7)

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Configuring IPv6 VRRP packet attributes

This section describes how to configure IPv6 VRRP packet attributes.

Configuration guidelines

• 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 VRRP advertisement from the master

before the timer (3 x recorded interval + Skew_Time) expires, it regards the master as failed and

takes over as the new master.

• A high volume of network traffic might cause a backup to fail to receive VRRP advertisements from

the master within the specified time, resulting in an unexpected master switchover. To solve this

problem, configure a larger interval.

Configuration procedure

To configure the IPv6 VRRP packet attribute:

Ste

Command

Remarks

1. Enter system view.

system-view N/A

2. Enter interface view.

interface interface-type

interface-number

N/A

3. Configure the IPv6 VRRP

advertisement interval.

vrrp ipv6 vrid virtual-router-id

timer advertise adver-interval

The default setting is 100

centiseconds.

To maintain system stability, HP

recommends that you set the

VRRP advertisement interval to

be greater than 100

centiseconds.

4. Return to system view.

quit N/A

5. Configure a DSCP value for IPv6

VRRP packets.

vrrp ipv6 dscp dscp-value

The DSCP value identifies the

packet priority during

transmission.

By default, the DSCP value for

IPv6 VRRP packets is 56.

Disabling an IPv6 VRRP group

You can temporarily disable an IPv6 VRRP group. After being disabled, the VRRP group stays in

initialized state, and its configurations remain unchanged. You can change the configuration of a VRRP

group when it is disabled. Your changes take effect when you enable the VRRP group again.

To disable an IPv6 VRRP group:

Ste