[svlug] Silicon Valley Wireless Linux Network
Seth David Schoen
schoen at uclink4.berkeley.edu
Thu Aug 20 13:04:44 PDT 1998
Nick Moffitt writes:
> On Thu, 20 Aug 1998, Nick Moffitt wrote:
> > On Thu, 20 Aug 1998 javilk at polly.mall-net.com wrote:
> > > Uh... isn't TCP/IP sort of a routing protocol in some respects?
> > > With no deterministic single delivery path?
> > :set pedantic
> > IP is a routing protocol. It determines where the packets
> > (made by TCP) will go. TCP is not a routing protocol in any respect.
> > Actually, there's no such thing as a "TCP/IP packet". A TCP packet
> > wrapped in an IP header is usually called a "frame" (correct me if I'm
> > wrong on this one, folks).
> > :set nopedantic
> Allow me to correct my previous statement. (this'll improve
> my rating on the list. I was #2 when last Rick forwarded it to me)
> IP is an addressing protocol, and routing is done via other means.
But you're correct that IP is _used for_ routing, where TCP is not.
Sometimes TCP and especially UDP are used on entirely unrouted networks, e.g.
private LANs or clusters. It's true that they run there on top of IP, which
has all kinds of addressing capabilities which make routing it easier, but
they could run on top of other things instead of IP.
Seth David Schoen L&S '01 (undeclared) / schoen at uclink4.berkeley.edu
Magna dis immortalibus habenda est atque huic ipsi Iovi Statori, antiquissimo
custodi huius urbis, gratia, quod hanc tam taetram, tam horribilem tamque
infestam rei publicae pestem totiens iam effugimus. -- Cicero, in Catilinam I
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