1084 CHAPTER 87: VRRP CONFIGURATION
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■ You may configure different authentication modes and authentication keys for
the standby groups on an interface. However, the members of the same
standby group must use the same authentication mode and authentication key.
■ Factors like excessive traffic or different timer setting on switches can cause the
Backup timer to time-out abnormally and trigger a change of the state. To
solve this problem, you can prolong the time interval to send VRRP packets and
configure a preemption delay.
Displaying and
Maintaining VRRP for
IPv4
Configuring VRRP for
IPv6
VRRP for IPv6
Configuration Task List
Complete these tasks to configure VRRP for IPv6:
To do… Use the command… Remarks
Enter system view system-view -
Enter the specified interface
view
interface interface-type
interface-number
-
Configure the authentication
mode and authentication key
when the standby groups
send and receive VRRP
packets
vrrp vrid virtual-router-id
authentication-mode { md5
| simple } key
Optional
Authentication is not
performed by default
Configure the time interval for
the Master in the standby
group to send VRRP
advertisement
vrrp vrid virtual-router-id
timer advertise
adver-interval
Optional
1 second by default
Disable TTL check on VRRP
packets
vrrp un-check ttl Optional
Enabled by default
Do not create a standby
group before executing this
command.
To do… Use the command… Remarks
Display VRRP status display vrrp [ verbose ]
[ interface interface-type
interface-number [ vrid
virtual-router-id ]]
Available in any view
Display VRRP statistics display vrrp statistics
[ interface interface-type
interface-number [ vrid
virtual-router-id ]]
Available in any view
Remove VRRP statistics reset vrrp statistics
[ interface interface-type
interface-number [ vrid
virtual-router-id ]]
Available in user view
Task Remarks
“Enabling Users to Ping Virtual IPv6 Addresses” on page 1085 Optional
“Configuring the Association Between Virtual IPv6 Address and MAC Address” on
page 1085
Optional
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