Huawei NetEngine80E Configuration Manual - Reliability page 461

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HUAWEI NetEngine80E/40E Router

Configuration Guide - Reliability

Issue 02 (2014-09-30)

When the GR Helpers find that the GR Restarter fails, they maintain the adjacency with

the GR Restarter and retain the routing information related to the GR Restarter before the

GR time times out.

After the SMB is started, the GR Restarter sends signals to the neighbors.

Figure 6-4 GR Restarter sending signals to the neighbors after the AMB/SMB switchover

Signals sent to estabilish a GR Session

The SMB of the GR Restarter is restarted to sends signals to the GR Helpers, and re-

establish sessions.

The GR Restarter obtains topology information from neighbors.

Figure 6-5 GR Restarter obtaining topology information from neighbors

GR restarter gets topology information

or routes from neighbors

After the GR Restarter obtains the topology information from its neighbors, it recalculates

the routing table and triggers the aging of the old routes.

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GR Restarter

GR Restarter

6 GR Configuration

Netengine40e