Figure 81 shows the overview of a basic VPLS topology for the sample configurations in this chapter.
Figure 81: Basic VPLS Topology

In this sample, the PE routers use the same autonomous system (AS). Within the AS, routing information is communicated through an interior gateway protocol (IGP). Outside the AS, routing information is shared with other ASs through BGP. The PE routers must use the same signaling protocols to communicate.
On the CE device interface that faces the PE router, you must specify inet (for IPv4), and include the IP address.