Distribution of Routes from PE to CE Routers

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 13 illustrates how the three PE routers announce their routes to their connected CE routers.

Figure 13: Distribution of Routes from PE Routers to CE Routers