13.15 PE-CE Configuration

In order for routes to be exchanged between the PE routers and CE routers, there must be some kind of routing protocol configured. The options available include RIP, OSPF, or BGP. Static routes are also supported, but IS-IS is not. This protocol is configured with the routing-instance and is only used with that individual instance.

13.15.1 OSPF

 [edit routing-instances VPN-Red]  lab@Chicago# set protocols ospf area 0 interface fe-1/0/3 

This command enables OSPF as the routing protocol that will be used between the CE router and the PE router. Note that the only interface configured for OSPF is the Fast Ethernet interface connected to the CE router.

13.15.2 BGP

 [edit protocols bgp]  lab@Chicago# set group  group name  type [internalexternal] [edit protocols bgp group internal] lab @Chicago# set neighbor  address  

The set group command under [edit protocols bgp] is used to create a BGP peer group. Configuring peers or neighbors is done with the set neighbor command.

13.15.3 Static Routes

The following example lists the configuration statements for static routes:

 [edit routing-options]  set static route  destination  next-hop  value