Steffen Weiberle writes:
> On 06/23/09 11:08, Sebastien Roy wrote:
> > Given two equivalent routes for a given destination, the route chosen
> > for a given packet to that destination is not deterministic.  The
> > current implementation tries to be clever and alternate which default
> > route is used when communicating with a new destination, and again, this
> > is unrelated to the source address used to communicate with that
> > destination.
> 
> For a given destination, what is the 'timeout' value, and does it change 
> based on initial creation, or last use timeout? I'd ask on James' great 
> blog, however comments are closed :)

;-}

The timeout is really an implementation detail.  It's currently based
on the use of cache IRE entries, and is controlled by
ip_ire_arp_interval, but can change faster if TCP issues negative
advice to IP (which it does on a retransmit).

I expect those details to change substantially in the future with the
IP Datapath Refactoring project.

-- 
James Carlson         42.703N 71.076W         <[email protected]>
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