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RE: Heartbeats (was RE: keepalives)
On Mon, 6 Dec 1999, Tero Kivinen wrote:
> Jan Vilhuber writes:
> > What about this: when sending a phase1-heartbeat (where we still need to
> > agree what this would look like) from host A to host B, why not include in it
> > all SPI's that host A shares with host B. If host B has a few SPI's that host
> > A didn't include in the heartbeat, then they are obviously deleted, and host
> > B should delete it's SPIS for those.
>
> That could be one way to do it, but it only allows machine to have
> 16376 SAs up at one time (64 kB packet limit at the UDP level). I
> have been doing testing with bigger number of SAs between hosts
> already now, and I wonder what amount of SAs we have in 5-10 years....
>
> Is that amount enough?
I hadn't thought of that. Good point.
A (shudder) 'more' bit? That would get unwieldly and complex with large
numbers.
jan
--
Jan Vilhuber vilhuber@cisco.com
Cisco Systems, San Jose (408) 527-0847
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