[governance] Feld on network management
Karl Auerbach
karl at cavebear.com
Fri Jan 11 20:41:49 EST 2008
Dan Krimm wrote:
> If anyone has to do it (and for Feld that's still a *big* "if"), the proper
> way is to empower users to do it.
Path control from the edges is somewhat akin to using a limp rope to
push a heavy spherical stone up a steep mountain. Hard, but, in theory,
not impossible. And the idea of clueless user fingers reaching into the
delicate innards of carrier networks is something that providers,
rightfully, have reason to fear.
Not trying to proselytize but merely to illustrate one method (of many):
I have a product, via my company, InterWorking Labs, that is designed
to, well, to "empower users", at least to a limited extent and with
reasonably fair minded providers along the data path.
What we do is give the user the means to shape outgoing traffic (and
very, very indirectly shape incoming traffic) according to one of
several different typical usage "profiles". (We call it "Speedbump"
because the main idea is to slow non-critical things down a bit so that
congestion of the critical flows can be avoided.)
One of the hard things is that there are piles of queues in typical
consumer gear. So one of the things we try to do is to slightly
underrun the actual outgoing bandwidth so that the queues build up where
the user can control 'em rather than in some, usually provider provided,
opaque box.
Way back when, as a result of my work in the late 1990's creating IP/TV,
I proposed a protocol to help measure and ascertain path conditions so
that the binding of clients to servers, path selection, and path
management could be done intelligently. See
http://www.cavebear.com/cbblog-archives/000151.html and
http://www.cavebear.com/archive/fpcp/fpcp-sept-19-2000.html
That, incomplete, protocol, however, wasn't the kind of thing that could
be done from the edges - it needed hooks in the routers along the path.
(I was in the Cisco's CTO's Advanced Internet Architectures group at
that time, so the notion of getting it into a large number of internet
routers wasn't as wild as it might otherwise have been.)
--karl--
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