Configuring an OSPF Multi-Instance on the PE

Different services are configured in different instances and use different OSPF process IDs.

Perform the following steps on the PE that is accessed by the multi-instance CE.

Access the system view.
```
system-view
```
Configure an OSPF multi-instance.
```
ospf process-id [ router-id router-id ] vpn-instance vpn-instance-name
```
Different services have different OSPF process IDs. However, router IDs of different services do not necessarily differ.
Access the OSPF area view.
```
area
 area-id
```
Advertise the IP address of the interface connected to the multi-instance CE.
```
network ip-address wildcard-mask
```
Access the OSPF view.
```
quit
```
Import the BGP route.
```
import-route bgp
```
Return to the system view.
```
quit
```
Access the BGP view.
```
bgp { as-number-plain | as-number-dot }
```
Access the BGP-VPN instance IPv4 address family view.
```
ipv4-family vpn-instance vpn-instance-name
```
Import the OSPF multi-instance route.
```
import-route ospf process-id
```