The PE Services Routers and provider Services Routers must be able to exchange routing information. To enable this exchange, you must configure either an IGP such as OSPF or static routes on these routers. You must configure the IGP at the [edit protocols] level, not within the routing instance at the [edit routing-instances] level.
You can use LDP or RSVP between PE routers and between PE routers and provider routers, but not for interfaces between PE routers and CE routers. LDP routes traffic using IGP metrics. RSVP has traffic engineering that lets you override IGP metrics as needed. For more information about these protocols, see Signaling Protocols Overview.
Each PE Services Router's loopback address must appear as a separate route. Do not configure any summarization of the PE Services Router's loopback addresses at the area boundary.
For more information about configuring IGPs and static routes, see Configuring an OSPF Network, Configuring Static Routes, and the JUNOS Routing Protocols Configuration Guide.
Configure the appropriate signaling protocol for your VPN: