Operation Manual – IP Routing-GR Overview
H3C S5500-EI Series Ethernet Switches
Chapter 2 GR Overview
2-4
Figure 2-4
The GR Restarter obtains topology and routing information from the GR
Helper
As illustrated in
Figure 2-4
, 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.
2.4 Graceful Restart Mechanism for Several Commonly Used
Protocols
The switch supports Graceful Restart based on Boarder Gateway Protocol (BGP),
Open Shortest Path First (OSPF), and Intermediate System to Intermediate System
(IS-IS).
For the implementation and configuration procedure of the Graceful Restart
mechanism of the above protocols, refer to
BGP Configuration
,
OSPF Configuration
,
and
IS-IS Configuration
in
IPv4 Routing Configuration
.
