Brocade Multi-Service IronWare Switching Configuration Guide (Supporting R05.6.00) - Manual (Page 607)

Multi-Service IronWare Switching Configuration Guide 577
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VSRP slow start
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Displaying ports that have VSRP fast start feature enabled
The show vsrp vrid command shows the ports on which the VSRP fast start feature is enabled.
The “Restart ports:” line lists the ports that have the VSRP fast start enabled, and the downtime for
each port. Refer to
Table 70 to interpret the remaining information on the display.
VSRP slow start
In a VSRP configuration, if a Master router goes down, the Backup router with the highest priority
takes over. When the Master comes back up again, it takes over from the Backup. By default, this
transition from Backup back to Master takes place immediately. You can configure the VSRP slow
start timer feature, which causes a specified amount of time to elapse between the time the
Master is restored and when it takes over from the Backup. (This range is currently set to between
1 to 600 ticks (1/10 second to 60 seconds). This interval allows time for VSRP convergence when
the Master is restored.
To set the VSRP slow start timer to 30 seconds, enter the following command.
Brocade(config)# router vsrp
Brocade(config-vsrp-router)# slow-start 300
Syntax: [no] slow-start ticks
The ticks parameter can range is from 1 to 600 ticks (1/10 second to 60 seconds).
When the VSRP slow start timer is enabled, if the Master goes down, the Backup takes over
immediately. If the Master subsequently comes back up again, the amount of time specified by the
VSRP slow start timer elapses (in this example, 30 seconds) before the Master takes over from the
Backup.
Brocade(config-vlan-100-vrid-100)#show vsrp vrid 100
VLAN 100
auth-type no authentication
VRID 100
========
State Administrative-status Advertise-backup Preempt-mode save-current
master enabled disabled true false
Parameter Configured Current Unit/Formula
priority 100 50 (100-0)*(2.0/4.0)
hello-interval 1 1 sec/1
dead-interval 3 3 sec/1
hold-interval 3 3 sec/1
initial-ttl 2 2 hops
next hello sent in 00:00:00.3
Member ports: ethe 2/5 to 2/8
Operational ports: ethe 2/5 ethe 2/8
Forwarding ports: ethe 2/5 ethe 2/8
Restart ports: 2/5(1) 2/6(1) 2/7(1) 2/8(1)