Alcatel-Lucent 7750 SR Manual page 936

IES Global Commands
priority
Syntax priority priority
no priority
Context config>service>ies>sub-if>grp-if>srrp
Description This command overrides the default base priority for the SRRP instance. The SRRP instance priority
is advertised by the SRRP instance to its neighbor router and is compared to the priority received
from the neighbor router. The router with the best (highest) priority enters the master state while the
other router enters the backup state. If the priority of each router is the same, the router with the
lowest source IP address in the SRRP advertisement message assumes the master state.
The base priority of an SRRP instance can be managed by VRRP policies. A VRRP policy defines a
set of connectivity or verification tests which, when they fail, may lower an SRRP instances base
priority (creating an in-use priority for the instance). Every time an SRRP instances in-use priority
changes when in master state, it sends an SRRP advertisement message with the new priority. If the
dynamic priority drops to zero or receives an SRRP Advertisement message with a better priority, the
SRRP instance transitions to the becoming backup state.
When the priority command is not specified, or the no priority command is executed, the system uses
a default base priority of 100. The priority command may be executed at anytime.
The no form of the command restores the default base priority to the SRRP instance. If a VRRP
policy is associated with the SRRP instance, it will use the default base priority as the basis for any
modifications to the SRRP instances in-use priority.
Parameters
priority — Specifies a base priority for the SRRP instance to override the default.
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Values 1 — 254
Default 100
7750 SR OS Services Guide