Operation Manual – IP Routing-GR Overview
H3C S5500-EI Series Ethernet Switches
Chapter 2 GR Overview
2-3
2)
GR Restarter restarting
Figure 2-2
Restarting process for the GR Restarter
As illustrated in
Figure 2-2
. The GR Helper detects that the GR Restarter has restarted
its routing protocol and assumes that it will recover within the GR Time. Before the GR
Time expires, the GR Helper will neither terminate the session with the GR Restarter
nor delete the topology or routing information of the latter.
3)
GR Restarter signaling to GR Helper
Figure 2-3
The GR Restarter signals to the GR Helper(s) after restart
As illustrated in
Figure 2-3
, after the GR Restarter has recovered, it will signal to all its
neighbors and will reestablish GR Session.
4)
The GR Restarter obtaining topology and routing information from the GR Helper