H3C Technologies H3C WX6000 Series Access Controllers - Manual (Page 212)

22-4
Figure 22-4 The GR Restarter obtains topology and routing information from the GR Helper
As illustrated in Figure 22-4 , the GR Restarter obtains the necessary topology and routing information
from all its neighbors through the GR sessions between them and calculates its own routing table based
on this information.
Graceful Restart Mechanism for Several Commonly Used Protocols
The device supports Graceful Restart based on Open Shortest Path First (OSPF).
For the implementation and configuration procedure of the Graceful Restart mechanism of the above
protocols, refer to OSPF Configuration in IPv4 Routing in H3C WX6103 Access Controller Switch
Interface Board Configuration Guide .