Path: utzoo!attcan!uunet!wuarchive!decwrl!ucbvax!UDEL.EDU!Mills
From: Mills@UDEL.EDU
Newsgroups: comp.protocols.tcp-ip
Subject: Re:  routing protocols
Message-ID: <8911221152.aa24949@huey.udel.edu>
Date: 22 Nov 89 16:52:17 GMT
Sender: usenet@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 10

Scott nicely and compactly summarized the problems with delay wobble in the
NSFNET Phase-I network, now gone to heaven and reincarnated as a network
of precision clocks. However, the real problem with the net as victim of
congestion abuse was the link-level protocol (DDCMP) which was implemented
in the interface firmware and could not be turned off. Thus, buffer starvation
at one site would cause persistent retransmission and eventual stagflation
at upstream sites. The many lessons learned, retroactively obvious and otherwise,
are summarized in my paper "The Fuzzbll" appearing in SIGCOM 88 proceedings.

Dave