Huawei NetEngine80E Configuration Manual - Reliability page 460

HUAWEI NetEngine80E/40E Router
Configuration Guide - Reliability
1.
2.
Issue 02 (2014-09-30)
The GR Restarter and the GR Helper negotiate the GR capability and establish a session.
Figure 6-2 Setting up sessions between the GR Helper and the GR Restarter
RouterD
RouterA
RouterB
GR Helper
Session with GR capability
Router A serves as the GR Restarter. Router B, Router C and Router D are GR Helpers
responding to Router A. A session with the GR capability is established between the GR
Restarter and each GR Helper.
The GR Restarter performs the AMB/SMB switchover.
Figure 6-3 AMB/SMB switchover of the GR Restarter
RouterD
RouterA
RouterB
GR
Helper
Session with GR capability
The administrator restarts the GR
restarter,or the GR restarter itself fails
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GR Helper
GR Restarter
RouterC
GR Helper
GR
Helper
GR
Restarter
RouterC
GR
Helper
6 GR Configuration
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