Brocade TurboIron 24X Series Configuration Guide - Manual (Page 910)

876 Brocade TurboIron 24X Series Configuration Guide
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Note regarding disabling VRRP or VRRPE
Configuration rules for VRRPE
• The interfaces of all routers in a VRID must be in the same IP subnet.
• The IP address associated with the VRID cannot be configured on any of the Layer 3 Switches.
• The Hello interval must be set to the same value on all the Layer 3 Switches.
• The Dead interval must be set to the same value on all the Layer 3 Switches.
• The track priority for a VRID must be lower than the VRRPE priority.
Note regarding disabling VRRP or VRRPE
If you disable VRRP or VRRPE, the Layer 3 Switch removes all the configuration information for the
disabled protocol from the running-config. 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.
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 (ex: 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 VRRPE configuration and are likely to disable and re-enable the
protocol, you might 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.
Configuring additional VRRP and VRRPE parameters
You can modify the following VRRP and VRRPE parameters on an individual VRID basis. These
parameters apply to both protocols:
• Authentication type (if the interfaces on which you configure the VRID use authentication)
• Router type (Owner or Backup)
NOTE
For VRRP, change the router type only if you have moved the real IP address from one router to
another or you accidentally configured the IP address Owner as a Backup.
For VRRPE, the router type is always Backup. You cannot change the type to Owner.
• Backup priority
• Suppression of RIP advertisements on Backup routes for the backed up interface
• Hello interval
• Dead interval