Extreme Networks ExtremeWare XOS Command Reference Manual page 1624

ExtremeWare XOS 11.5 supports only the Summit X450 family of switches and the BlackDiamond 8800 series switch.
OSPFv3 Commands
packets. The shorter the hello interval, the earlier topological changes will be detected, but more routing
traffic will ensue.
The retransmit interval must be greater than the expected round trip delay between any two routers on
the attached network. The setting of this parameter must be conservative, or needless retransmission
will result.
NOTE
The wait interval for the interface is not separately configurable. It is always equal to the dead interval.
Example
The following command sets the timers in area 0.0.0.2:
configure ospfv3 area 0.0.0.2 timer 10 1 20 200
History
This command was first available in ExtremeWare XOS 11.2.
Platform Availability
This command is available on platforms with a Core or an Advanced Core license.
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ExtremeWare XOS 11.5 Command Reference Guide