Nsf Helper - NETGEAR M6100 Series Reference Manual

initiate failover command), the grace LSAs are sent prior to restarting the
management unit, whereas for unplanned restarts, they are sent after reboot begins.
The grace period must be set long enough to allow the restarting router to reestablish all of its
adjacencies and complete a full database exchange with each of those neighbors. The value
for the seconds argument can be from 1–1800 seconds.
Default 120 seconds
Format
nsf [ietf] restart-interval seconds
Modes OSPF Router Configuration
Parameter Description
ietf This keyword is accepted but not required.
seconds The number of seconds that the restarting router asks its neighbors to wait before exiting helper
mode. The range is from 1 to 1800 seconds.
no nsfrestart-interval
Use this command to revert the grace period to its default value.
Format
no [ietf] nsf restart-interval
Modes OSPF Router Configuration

nsf helper

Use this command to enable helpful neighbor functionality for the OSPF protocol. You can
enable this functionality for planned or unplanned restarts, or both.
Default OSPF may act as a helpful neighbor for both planned and unplanned restarts
Format
nsf helper [planned-only]
Modes OSPF Router Configuration
Parameter Description
planned-only This optional keyword indicates that OSPF should only help a restarting router performing a planned
restart.
no nsf helper
Use this command to disable helpful neighbor functionality for OSPF.
Format
no nsf helper
Modes OSPF Router Configuration
M6100 Series Switches
Routing Commands
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