Configure a Routing Protocol between the Service Provider Routers

The service provider routers need to be able to exchange routing information. You can configure the following protocols for the virtual-router routing instance protocols statement configuration at the [routing-instances routing-instance-name] hierarchy level:

• BGP
• IS-IS
• LDP
• OSPF
• PIM
• RIP

You can also configure static routes.

IBGP route reflection is not supported for virtual-router routing instances.

If you configure LDP under a virtual-router instance, LDP routes are placed by default in the routing instance's inet.0 and inet.3 routing tables (for example, sample.inet.0 and sample.inet.3). To restrict LDP routes to only the routing instance's inet.3 table, include the no-forwarding statement:

no-forwarding;

You can include the no-forwarding statement at the following hierarchy levels:

• [edit routing-instances routing-instance-name protocols ldp]
• [edit logical-routers logical-router-name routing-instances routing-instance-name protocols ldp]

When you restrict the LDP routes to only the inet.3 routing table, the corresponding IGP route in the inet.0 routing table can be redistributed and advertised into other routing protocols.

For information on how to configure routing protocols, see the JUNOS Routing Protocols Configuration Guide.