Distribution Of Routes From Pe To Ce Routers - Juniper ACX1000 Configuration Manual

Distribution of Routes from PE to CE Routers

Copyright © 2017, Juniper Networks, Inc.
When the remote PE router receives routes advertised from another PE router (Routers
PE2 and PE3 in Figure 51 on page
If the route is accepted by the import policy on the IBGP session between the PE
1.
routers, the remote PE router places the route into its bgp.l3vpn.0 table.
The remote PE router checks the route's route target community against the VRF
2.
import policy for the VPN.
If it matches, the route distinguisher is removed from the route, and it is placed into
3.
the VRF table (the routing-instance-name.inet.0 table) in IPv4 format.
The remote PE router announces the routes in its VRF tables, which are in IPv4 format,
to its directly connected CE routers.
PE routers can communicate with CE routers using one of the following routing protocols:
OSPF
RIP
BGP
Static route
Figure 52 on page 826 illustrates how the three PE routers announce their routes to their
connected CE routers.
Chapter 26: Configuring Layer 3 VPNs
824), it uses the following procedure to process the route:
825