Newsgroups: comp.archives Path: utzoo!utgpu!news-server.csri.toronto.edu!ox.com!emv From: jain@erlang.enet.dec.com ("Raj Jain, DEC, 550 King St. LKG 1-2/A19, Littleton, MA 01460 01-Jan-1991 1607") Subject: [tcp-ip] New Technical Report on Congestion Available (DEC-TR-724) Message-ID: <1991Jan2.024154.12159@ox.com> Followup-To: comp.protocols.tcp-ip Sender: emv@ox.com (Edward Vielmetti) Reply-To: jain@erlang.enet.dec.com ("Raj Jain, DEC, 550 King St. LKG 1-2/A19, Littleton, MA 01460 01-Jan-1991 1607") Organization: The Internet References: <9101012107.AA24762@decpa.pa.dec.com> Date: Wed, 2 Jan 91 02:41:54 GMT Approved: emv@ox.com (Edward Vielmetti) X-Original-Newsgroups: comp.protocols.tcp-ip Archive-name: internet/research/jain-congestion-myths/1991-01-01 Archive: jain@erlang.enet.dec.com: a mailing label [mail] Original-posting-by: jain@erlang.enet.dec.com ("Raj Jain, DEC, 550 King St. LKG 1-2/A19, Littleton, MA 01460 01-Jan-1991 1607") Original-subject: New Technical Report on Congestion Available (DEC-TR-724) Reposted-by: emv@ox.com (Edward Vielmetti) The following DEC technical report is now available for external distribution. DEC-TR-724: Myths About Congestion Management in High-Speed Networks 10 pages. If you would like to receive a hard copy, please reply to this message with your address in a form suitable for direct application as a mailing label. Any other words or sentences in the reply will only delay the delivery. The abstract of the report is as follows: DEC-TR-724 Myths About Congestion Management in High-Speed Networks by Raj Jain Weaknesses in several recently proposed ideas about congestion control and avoidance in high-speed networks are identified. Both sides of the debate concerning prior-reservation of resources versus walk-in service, open-loop control versus feedback control, rate control versus window control, and router-based control versus source-based control are presented. The circumstances under which backpressure is useful or not useful are discussed, and it is argued that a single congestion scheme is not sufficient, but that a combination of several schemes is required for complete congestion management in a network.