Инструкции По Установке для 3com S7906E

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Configuring OSPFv3 GR

You cannot configure OSPFv3 GR after configuring OSPFv3 virtual links, becase they are not

supported at the same time.

To prevent service interruption after a master/backup switchover, a GR Restarter running OSPFv3 must

complete the following tasks:

Keep the GR Restarter forwarding entries stable during reboot.

Establish all adjacencieis and obtain complete topology information after reboot.

After the master/backup switchover, the GR Restarter sends a Grace-LSA to tell its neighbors that it

performs a GR. Upon receiving the Grace-LSA, the neighbors with the GR Helper capability enter the

helper mode (and are thus called GR Helpers). Then, the GR Restarter retrieves its adjacencies and

LSDB with the help of the GR Helpers. Thus, the normal data forwarding is ensured.

Configuring GR Restarter

You can configure the GR Restarter capability on a GR Restarter.

Follow these steps to configure GR Restarter:

To do…

Use the command…

Remarks

Enter system view

system-view

—

Enter OSPFv3 view

ospfv3 [ process-id ]

—

Enable the GR capability

graceful-restart enable

Required

Disabled by default.

Configure the GR interval

graceful-restart interval
interval-value

Optional

120 seconds by default.

Configuring GR Helper

You can configure the GR Helper capability on a GR Helper.

Follow these steps to configure GR Helper