[Beowulf] SCTP

Donald Becker becker at scyld.com
Mon Mar 8 20:44:52 EST 2004


On Mon, 8 Mar 2004, Nathan Littlepage wrote:

> Has anyone looked into incorporating SCTP in the cluster environment?

What advantage would it provide for a SAN- or LAN-based cluster?

Not that TCP is especially light-weight.  TCP implementations are
WAN-oriented and have increasingly costly features (look at the CPU cost
of iptables/ipchains) and defenses against spoofing (TCP stream start-up
is much more costly than the early BSD implementations).  The only
reason SCTP would be a better cluster protocol is that it hasn't yet
accumulated the cruft ("features") of a typical TCP stack.  But if it
became popular, that would change pretty much instantly.

-- 
Donald Becker				becker at scyld.com
Scyld Computing Corporation		http://www.scyld.com
914 Bay Ridge Road, Suite 220		Scyld Beowulf cluster systems
Annapolis MD 21403			410-990-9993

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