Configuration procedure, Configuring ipv6 vrrp packet attributes, Configuration guidelines – H3C Technologies H3C MSR 5600 User Manual
Page 27: Configuring ipv6 vrrp packet, Attributes
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Configuration procedure
To configure VF tracking:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter interface view.
interface interface-type
interface-number
N/A
3.
Configure the VFs in a VRRP
group to monitor a track entry
and configure the reduced
weight.
vrrp ipv6 vrid virtual-router-id
weight track track-entry-number
[ reduced weight-reduced ]
By default, no track entry is
specified.
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 new VRRP advertisement from the
master when 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:
Step 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,
H3C recommends that you set
the VRRP advertisement interval
to be greater than 100
centiseconds.
4.
Exit system view.
quit
N/A
5.
Configure a DCSP value for IPv6
VRRP packets.
vrrp ipv6 dscp dscp-value
The DSCP value identifies the
packet priority during
transmission.
By default, the DCSP value for
IPv6 VRRP packets is 56.