VRRP Configuration Command Reference
428 Router Configuration Guide
priority
Syntax priority priority-level [{delta | explicit}]
no priority
Context config>vrrp>policy>priority-event>host-unreachable ip-addr
config>vrrp>policy>priority-event>lag-port-down lag-id>number-down number-of-lag-ports-
down
config>vrrp>policy>priority-event>port-down port-id[.channel-id]
config>vrrp>policy>priority-event>route-unknown prefix/mask-length
Description This command controls the effect the set event has on the virtual router instance in-use priority.
When the event is set, the priority-level is either subtracted from the base priority of each virtual router
instance or it defines the explicit in-use priority value of the virtual router instance depending on
whether the delta or explicit keywords are specified.
Multiple set events in the same policy have interaction constraints:
• If any set events have an explicit priority value, all the delta priority values are ignored.
• The set event with the lowest explicit priority value defines the in-use priority that are used
by all virtual router instances associated with the policy.
• If no set events have an explicit priority value, all the set events delta priority values are
added and subtracted from the base priority value defined on each virtual router instance
associated with the policy.
• If the delta priorities sum exceeds the delta-in-use-limit parameter, then the delta-in-use-
limit parameter is used as the value subtracted from the base priority value defined on each
virtual router instance associated with the policy.
If the priority command is not configured on the priority event, the priority-value defaults to 0 and the
qualifier keyword defaults to delta, thus, there is no impact on the in-use priority.
The no form of the command reverts to the default values.
Default 0 delta — The set event will subtract 0 from the base priority (no effect).
Parameters priority-level — The priority level adjustment value expressed as a decimal integer.
Values 0 to 254
delta | explicit — Configures what effect the priority-level will have on the base priority value.
When delta is specified, the priority-level value is subtracted from the associated virtual
router instance’s base priority when the event is set and no explicit events are set. The sum of
the priority event priority-level values on all set delta priority events are subtracted from the
virtual router base priority to derive the virtual router instance in-use priority value. If the
delta priority event is cleared, the priority-level is no longer used in the in-use priority
calculation.
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