Route Distribution Within a Layer 3 VPN

Within a VPN, the distribution of VPN-IPv4 routes occurs between the PE and CE routers and between the PE routers (see Figure 12).

Figure 12: Route Distribution Within a VPN

This section discusses the following topics:

• Distribution of Routes from CE to PE Routers
• Distribution of Routes Between PE Routers
• Distribution of Routes from PE to CE Routers