Brocade FastIron Ethernet Switch Layer 3 Routing Configuration Guide - Manual (Page 598)

VRRP and VRRP-E parameters (Continued) TABLE 125
Parameter Description Default
Backup preempt
mode Prevents a Backup with a higher VRRP priority from taking control
of the VRID from another Backup that has a lower priority but has
already assumed control of the VRID. Enabled
Timer scale Adjusts the timers for the Hello interval, Dead interval, Backup Hello
interval, and Hold-down interval.
NOTE
The timer scale is not supported for IPv6 VRRP v3.
1
VRRP-E slow start
timer Causes a specified amount of time to elapse between the time the
original Master is restored and when it takes over from the Backup.
This interval allows time for OSPF convergence when the Master is
restored. For VRRP-E only. Disabled
Short-path
forwarding Enables VRRP-E extension for server virtualization. If enabled, the
traffic that is destined to the clients travels through the short-path
forwarding path to reach the client. With Short-Path-Fowarding
enabled, a Brocade device bypasess the VRRP-E Master router
and directly forward packets to their destinations through interfaces
on the Backup router if it is the shortest path to the destination. Disabled
Note regarding disabling VRRP or VRRP-E
NOTE
Disabling VRRP or VRRP-E is supported by IPv4 VRRP v2, and IPv6 VRRP and IPv6 VRRP-E v3.
If you disable VRRP or VRRP-E, the Layer 3 switch removes all the configuration information for the
disabled protocol from the running-config file. Moreover, when you save the configuration to the
startup-config file after disabling one of these protocols, all the configuration information for the
disabled protocol is removed from the startup-config file.
The CLI displays a warning message such as the following.
Brocade Router1(config-vrrp-router)#no router vrrp
router vrrp mode now disabled. All vrrp config data will be lost when writing to
flash!
If you have disabled the protocol but have not yet saved the configuration to the startup-config file and
reloaded the software, you can restore the configuration information by re-entering the command to
enable the protocol (for example, router vrrp ). If you have already saved the configuration to the
startup-config file and reloaded the software, the information is gone.
If you are testing a VRRP or VRRP-E configuration and are likely to disable and re-enable the
protocol, you may want to make a backup copy of the startup-config file containing the protocol
configuration information. This way, if you remove the configuration information by saving the
configuration after disabling the protocol, you can restore the configuration by copying the backup
copy of the startup-config file onto the flash memory.
Note regarding disabling VRRP or VRRP-E
598 FastIron Ethernet Switch Layer 3 Routing Configuration Guide
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