Dead Interval; Backup Hello Message State And Interval; Track Port - Dell PowerConnect B-RX Configuration Manual

Dead interval

The Dead interval is the number of seconds a Backup waits for a Hello message from the Master
before determining that the Master is dead. When Backups determine that the Master is dead, the
Backup with the highest priority becomes the new Master. The Dead interval can be from 1 – 84
seconds. The default is 3.5 seconds. This is three times the default Hello interval (1 second) plus
one-half second added by the router software. The software automatically adds one-half second to
the Dead interval value you enter.
To change the Dead interval on a Backup to 30 seconds, enter the following commands.
Router2(config)# inter e 1/5
Router2(config-if-e10000-1/5)# ip vrrp vrid 1
Router2(config-if-e10000-1/5-vrid-1)# dead-interval 30
Syntax: dead-interval <value>
The Dead interval can be from 1 – 84 seconds. The default is 3.5 seconds.
The syntax is the same for VRRP and VRRPE.

Backup hello message state and interval

By default, Backup 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 to send Hello messages to the Master, enter commands such as the following.
BigIron RX(config)# router vrrp
BigIron RX(config)# inter e 1/6
BigIron RX(config-if-e10000-1/6)# ip vrrp vrid 1
BigIron RX(config-if-e10000-1/6-vrid-1)# advertise backup
Syntax: [no] advertise backup
When you enable a Backup to send Hello messages, the Backup sends a Hello messages to the
Master every 60 seconds by default. You can change the interval to be up to 3600 seconds. To do
so, enter commands such as the following.
BigIron RX(config)# router vrrp
BigIron RX(config)# inter e 1/6
BigIron RX(config-if-e10000-1/6)# ip vrrp vrid 1
BigIron RX(config-if-e10000-1/6-vrid-1)# backup-hello-interval 180
Syntax: [no] backup-hello-interval <num>
The <num> parameter specifies the message interval and can be from 60 – 3600 seconds. The
default is 60 seconds.
The syntax is the same for VRRP and VRRPE.

Track port

You can configure the virtual router to track the link state of interfaces on the device. This
capability is quite useful for tracking the state of the exit interface for the path for which the virtual
router is providing redundancy. Refer to
BigIron RX Series Configuration Guide
53-1001810-01
Configuring additional VRRP and VRRPE parameters
"Track ports and track priority"
17
on page 442.
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