Users Guide

Table Of Contents
Layer 3 Routing Commands 1866
User Guidelines
The timers throttle command throttles the generation of link-state packets
(LSPs). Receipt of an LSP will initiate an SPF calculation in the router. LSP
throttling reduces route flapping and the load on other OSPF routers in the
network.
The initial wait interval is set to the value of spf-hold. If an SPF calculation is
not initiated during the current wait interval, the next SPF calculation is
scheduled
spf-start
milliseconds later. This wait interval is doubled on each
subsequent expiry if an SPF calculation is initiated during the interval.
Initiating an SPF calculation resets the wait interval to the value of
spf-hold
.
The wait interval is not allowed to exceed the value of
spf-maximum
.
Command History
Command introduced in version 6.5 firmware.
Example
console(config-router6)#timers throttle spf 3000 6000 18000