D-Link DGS-6608 — настройка OSPF Restart Helper для маршрутизаторов [541/1106]

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DGS-6600 Series Switch m ospf restart helper

CLI Reference Guide

531

ospf restart helper

To enable nonstop forwarding (NSF) helper mode on a router that is running

Open Shortest Path First (OSPF), use the ospf restart helper command in the

router configuration mode. To disable NSF helper mode for OSPF, use the no

form of this command.

ospf restart helper [restart time SECONDS]

no ospf restart helper

Default By default, will operate OSPF restart helper mode and restart time is infinite (i.e.

never time out).

Command Mode Router configuration.

Usage Guideline When a router in an OSPF process has NSF enabled, the router is said to be

NSF-capable and will operate in graceful restart mode-the OSPF router process

performs nonstop forwarding recovery due to a Route Processor (RP)

switchover. By default, the neighboring routers of the NSF-capable router will be

NSF-aware and will operate in NSF helper mode. When the NSF-capable router

is performing graceful restart, the helper routers assist in the nonstop forwarding

recovery process. If you do not want the router to help the restarting neighbor

with nonstop forwarding recovery, enter the no form of this command.

Examples The ospf grace restart helper is set to never to act as helper in the following

example.

Syntax Description

restart-time

SECONDS

(Optional) Help the peer OSPF restart as only if the received restart period time

is less than this value. If no option is specified, a default restart time will be

applied for helper mode. The configurable range of values are from 1 to 1800

seconds.

Switch#configure terminal

Switch#(config)#router ospf

Switch#(config-router)#ospf restart helper