Configuring Multi-VPN-instance CE

Multi-VPN-instance CE is used in LANs. By configuring multiple OSPF instances on CEs, you can implement service isolation.

One OSPF process can belong to only one VPN instance; one VPN instance can run several OSPF processes.

Configuration Prerequisites

Before configuring multi-VPN-instance CE, complete these tasks:

• Configuring VPN instances
•  Configuring the link layer and network layer protocols on related interfaces to ensure IP connectivity.

Configuration Procedure

Multi-VPN-instance CE can be regarded as a networking solution for implementing service isolation by route isolation. There is no special configuration required for a multi-VPN-instance CE, except that you need to enable the multi-VPN-instance CE function.

After you enable multi-VPN-instance CE, routing loop detection on the PE is disabled for route calculating to avoid route loss, and BGP/OSPF interoperability is disabled to save system resources.

Follow these steps to configure multi-VPN-instance CE: