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| -rw-r--r-- | doc/ospf6d.texi | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/doc/ospf6d.texi b/doc/ospf6d.texi index 6667221c..c01c0510 100644 --- a/doc/ospf6d.texi +++ b/doc/ospf6d.texi @@ -28,6 +28,44 @@ Bind interface to specified area, and start sending OSPF packets. @var{area} ca be specified as 0. @end deffn +@deffn {OSPF6 Command} {timers throttle spf @var{delay} @var{initial-holdtime} @var{max-holdtime}} {} +@deffnx {OSPF6 Command} {no timers throttle spf} {} +This command sets the initial @var{delay}, the @var{initial-holdtime} +and the @var{maximum-holdtime} between when SPF is calculated and the +event which triggered the calculation. The times are specified in +milliseconds and must be in the range of 0 to 600000 milliseconds. + +The @var{delay} specifies the minimum amount of time to delay SPF +calculation (hence it affects how long SPF calculation is delayed after +an event which occurs outside of the holdtime of any previous SPF +calculation, and also serves as a minimum holdtime). + +Consecutive SPF calculations will always be seperated by at least +'hold-time' milliseconds. The hold-time is adaptive and initially is +set to the @var{initial-holdtime} configured with the above command. +Events which occur within the holdtime of the previous SPF calculation +will cause the holdtime to be increased by @var{initial-holdtime}, bounded +by the @var{maximum-holdtime} configured with this command. If the adaptive +hold-time elapses without any SPF-triggering event occuring then +the current holdtime is reset to the @var{initial-holdtime}. + +@example +@group +router ospf6 + timers throttle spf 200 400 10000 +@end group +@end example + +In this example, the @var{delay} is set to 200ms, the @var{initial +holdtime} is set to 400ms and the @var{maximum holdtime} to 10s. Hence +there will always be at least 200ms between an event which requires SPF +calculation and the actual SPF calculation. Further consecutive SPF +calculations will always be seperated by between 400ms to 10s, the +hold-time increasing by 400ms each time an SPF-triggering event occurs +within the hold-time of the previous SPF calculation. + +@end deffn + @node OSPF6 area @section OSPF6 area |