Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!uunet!husc6!cmcl2!rutgers!sri-spam!mordor!lll-tis!ames!ucbcad!ucbvax!park-street!brescia From: brescia@park-street (Mike Brescia) Newsgroups: comp.protocols.tcp-ip Subject: Re: TCP and Loss (inherently lossy nets) Message-ID: <8710051315.AA12684@ucbvax.Berkeley.EDU> Date: Mon, 5-Oct-87 09:15:40 EDT Article-I.D.: ucbvax.8710051315.AA12684 Posted: Mon Oct 5 09:15:40 1987 Date-Received: Thu, 8-Oct-87 01:48:23 EDT Sender: daemon@ucbvax.BERKELEY.EDU Distribution: world Organization: The ARPA Internet Lines: 15 Can anyone from Packet Radio or SURAN projects speak to the retransmission attempts done on single hops to improve reliability (and increase delay average and variance)? Is hop-by-hop retransmission better than end-to-end retransmission or not? Why? Should TCP rely on hop-by-hop reliability and never retransmit? (Before you answer that, recall that the vast majority of lost packets are dropped in gateways because of congestion.) Mike I'm interested in situations in which loss is inherent -- that is, you will get loss, no matter what your TCP does. Packet radios suffering from noise or jamming are good examples. Loss caused by congestion is a different problem.