Messages in this thread |  | | | Date | Wed, 18 Oct 2000 22:13:04 +0200 | | From | Andi Kleen <> | | Subject | Re: why would you want /proc/sys/net/ipv4/route/min_delay to not be zero? |
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On Wed, Oct 18, 2000 at 03:55:41PM -0400, Johannes Erdfelt wrote: > On Wed, Oct 18, 2000, Andi Kleen <ak@suse.de> wrote: > > On Wed, Oct 18, 2000 at 03:35:46PM -0400, Christopher Friesen wrote: > > > Now what I'm trying to figure out is why anyone would want this value to > > > NOT be set to zero. When would you not want route flushes and route > > > changes to take immediate effect? > > > > Mostly to avoid total breakdown of a BGP4 router when routes are flapping. > > Isn't that what route dampening is for? The routing daemon would handle > this situation to avoid the total breakdown.
The routing subsystem is designed to handle multiple routing daemons. A flush operation is relatively costly, so it is a good idea to do it in longer intervals no matter how the routes are changed (and using an user mode daemon for that would be overkill)
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