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resolution

Syntax

resolution {rib routing-table-name {import [ policy-names ];resolution-ribs [ routing-table-names ];}}

Hierarchy Level

[edit logical-systems logical-system-name routing-instances routing-instance-name routing-options],[edit logical-systems logical-system-name routing-options],[edit routing-instances routing-instance-name routing-options],[edit routing-options]

Release Information

Statement introduced before Junos OS Release 7.4.

Statement introduced in Junos OS Release 9.0 for EX Series switches.

Statement introduced in Junos OS Release 11.3 for the QFX Series.

Description

Configure the router to perform custom route resolution on protocol next hops of routes in a certain routing table. The protocol next hop is used to determine the forwarding next-hop.

For example, you might want to direct inet.2 route resolution to use topology routing tables :red.inet.0 and :blue.inet.0 for protocol next-hop IP address lookups. Or you might want to direct bgp.l3vpn.0 to use the information in inet.0 to resolve routes, thus overriding the default behavior, which is to use inet.3.

You can specify up to two routing tables in the resolution-ribs statement. The route resolution scheme first checks the first-listed routing table for the protocol next-hop address. If the address is found, it uses this entry. If it is not found, the resolution scheme checks second-listed routing table. Hence, only one routing table is used for each protocol nexthop address. For example, if you configure resolution rib bgp.l3vpn.0 resolution-ribs [inet.0 inet.3], inet.0 is checked first and then inet.3 is checked.

Note: Customizing route resolution might cause the routing protocol process (rpd) to consume more memory resources than it ordinarily would. When you customize route resolution, we recommend that you check the memory resources by running the show system processes and the show task memory commands. For more information, see Routing Protocol Process Memory FAQs.

The remaining statements are explained separately.

Required Privilege Level

routing—To view this statement in the configuration.

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

 

Related Documentation

 

Published: 2013-01-17

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