MCE overview

The Multi-VPN Instance CE (MCE) feature allows you to create multiple VPN instances on a CE. The VPN instances each have an independent routing table and an address space to achieve service isolation.

As shown in Figure 78, the MCE exchanges private routes with VPN sites and PE 1, and adds the private routes to the routing tables of corresponding VPN instances.

Figure 78: Network diagram for the MCE feature

You can configure static routes, RIP, OSPF, IS-IS, EBGP, or IBGP between an MCE and a VPN site and between an MCE and a PE.


[NOTE: ]

NOTE:

To implement dynamic IP assignment for DHCP clients in private networks, you can configure DHCP server or DHCP relay agent on the MCE. When the MCE functions as the DHCP server, the IP addresses assigned to different private networks cannot overlap.