Brocade Communications Systems Layer 3 Routing Configuration ICX 6650 - Manual (Page 456)

438 Brocade ICX 6650 Layer 3 Routing Configuration Guide
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Additional VRRP and VRRP-E parameter configuration
Dead interval configuration
The dead interval is the number of seconds a Backup router waits for a Hello message from the
Master before determining that the Master is dead. When Backup routers determine that the
Master is dead, the Backup with the highest priority becomes the new Master.
If the value for the dead interval is not configured, then the current dead interval is equal to three
times the Hello interval plus the Skew time (where Skew time is equal to (256 - priority) divided by
256).
To change the dead interval on a Backup to 30 seconds, enter the following commands.
Brocade Router2(config)#interface ethernet 1/1/5
Brocade Router2(config-if-e10000-1/1/5)#ip vrrp vrid 1
Brocade Router2(config-if-e10000-1/1/5-vrid-1)#dead-interval 30
Syntax: dead-interval value
The value variable is from 1 through 84 seconds for VRRP v2 and VRRP-E v2. For other versions,
the value variable is from 100 through 8400 milliseconds. The default is 3600 milliseconds.
NOTE
If the dead-interval command is not configured on a VRRP v3 interface, then a zero value is
displayed in the output of the show ipv6 VRRP-Extended command.
Backup Hello message state and interval
NOTE
The advertise backup command is supported by IPv4 VRRP v2, and IPv6 VRRP v3 and IPv6 VRRP-E
v3.
By default, Backup routers do not send Hello messages to advertise themselves to the Master. You
can enable these messages if desired and also change the message interval.
To enable a Backup router to send Hello messages to the Master, enter the following commands.
Brocade(config)#router vrrp
Brocade(config)#interface ethernet 1/1/6
Brocade(config-if-e10000-1/1/6)#ip vrrp vrid 1
Brocade(config-if-e10000-1/1/6-vrid-1)#advertise backup
Syntax: [no] advertise backup
When you enable a Backup to send Hello messages, the Backup sends a Hello message to the
Master every 60 seconds by default. You can change the interval to be up to 3600 seconds. To
change the Hello message interval, enter the following commands.
Brocade(config)#router vrrp
Brocade(config)#interface ethernet 1/1/6
Brocade(config-if-e10000-1/1/6)#ip vrrp vrid 1
Brocade(config-if-e10000-1/1/6-vrid-1)#backup-hello-interval 180
Syntax: [no] backup-hello-interval num
The num variable specifies the message interval and can be from 60 through 3600 seconds. The
default is 60 seconds.
The syntax is the same for VRRP v2 and IPv6 VRRP v3, and VRRP-E v2 and IPv6 VRRP-E v3.