Creating A Sham Link - H3C LS-3100-52P-OVS-H3 Operation Manual

To do...
Enter BGP VPN instance view
Inject direct routes, that is,
loopback host routes
For BGP VPN information, refer to MCE Configuration in the IP Routing Volume.

Creating a Sham Link

Follow these steps to create a sham link:
To do...
Enter system view
Enter OSPF view
Configure the route tag
Enter OSPF area view
Configure a sham link
If you start OSPF but do not configure the router ID, the system will automatically elect one.
However, the same election rules produce the same router ID. Therefore, you are recommended to
configure the router ID when starting an OSPF process. For the election rules, refer to OSPF
Configuration in the IP Routing Volume.
If you configure multiple OSPF VPN instances but do not configure the route tag, the system will
automatically create one based on the AS number configured. If you do not configure BGP, the tag
will be 0.
Use the command...
ipv4-family vpn-instance
vpn-instance-name
import-route direct
Use the command...
system-view
ospf [ process-id | router-id router-id |
vpn-instance vpn-instance-name ] *
route-tag tag-value
area area-id
sham-link source-ip-address
destination-ip-address [ cost cost | dead
dead-interval | hello hello-interval | retransmit
retrans-interval | trans-delay delay | simple
[ cipher | plain ] password | { md5 | hmac-md5 }
key-id [ cipher | plain ] password ]*
1-42
Remarks
Required
Required
Remarks
—
—
Required
Required
Required
By default, no
sham link is
configured.