prioritization

Syntax

Hierarchy Level

Description

Prioritization in multipath BGP involves selecting and load-sharing traffic across multiple equal-cost BGP paths, including both EBGP and IBGP routes. Prioritization can be used to prioritize critical routes in BGP multipath computations with low-, medium-, and high-priority queues. Doing so reduces multipath-calculation latency for operator-prioritized routes in overall route convergence during high load. You can manage delayed Forwarding Information Base (FIB) convergence that results from frequent routing changes.

Note: The high-priority-inline does not serve as the default or recommended operational mode for multipath processing. Although high-priority-inline mode immediately recalculates ECMP for a subset of routes, high-priority-inline mode might increase system workload. The high-priority-inline mode also introduces extra churn in optimized routes and negatively affects overall routing performance. Inline computation might slow BGP convergence because the system does not defer the work to the job scheduler. Operators should enable high-priority-inline mode only for narrowly scoped prefixes that require highly responsive ECMP updates.

Options

high-priority-inline	Routes that have high priority, either from route prioritization, or overridden using multipath priority policy, will have their equal-cost multipath computed immediately rather than being subject queueing for service.
policy	A policy block is used to override the multipath priority queue behavior without affecting the existing route prioritization. If the policy does not have an explicit terminating action, the system defaults to using the medium priority level.

Required Privilege Level

routing—To view this statement in the configuration.

routing-control—To add this statement to the configuration.

Release Information

Statement introduced in Junos OS Release 25.2R1.

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