VRRP Interface Tracking
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Alcatel-Lucent
Beta Beta
OmniAccess 5740 Unified Services Gateway CLI Configuration Guide
WHEN TRACK INTERFACE COMES UP
The following section details the process followed by the Master and Backup
routers when the track-interface comes up.
R
OUTER IN MASTER STATE
• If the router is the address owner, then the router will set its operational priority to
255. Track interface is not supported if the router is the address owner.
• If the router is not the address owner, then the router will set its operational priority
to the configured priority.
R
OUTER IN BACKUP STATE
The router in backup state will take the following actions when the track interface
comes up.
Router is not the Address Owner:
The router will take the following action when it is not the address owner, and the
track interface comes up.
• Sets the priority of the router to the configured value and stays as backup.
• Any state changes that may need to happen will happen when the next
advertisement packet is received or when the master down timer fires.
E
NTERING MASTER STATE
The following actions are taken before entering the master state, when the track
interface is enabled:
• If the track interface is down, the router will decrement the priority of the VRRP
group from the configured VRRP priority.
• The router will send an advertisement with priority based on the decrement value
configured.
• The router will switch to backup state if a router with the next highest priority
overrides it. Else, the router will remain in master state to provide some minimal
set of services.
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