Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!seismo!ll-xn!cit-vax!amdahl!sjl From: sjl@amdahl.UUCP (Steve Langdon) Newsgroups: net.unix-wizards Subject: Re: simultaneous file transfer on ethernet (SUN's) Message-ID: <3596@amdahl.UUCP> Date: Fri, 29-Aug-86 23:50:17 EDT Article-I.D.: amdahl.3596 Posted: Fri Aug 29 23:50:17 1986 Date-Received: Sat, 30-Aug-86 04:54:38 EDT References: <6@cvbnet.uucp> <6527@sun.uucp> Reply-To: sjl@amdahl.UUCP (Steve Langdon) Organization: Amdahl Corp, Advanced Systems Planning Lines: 18 Keywords: multicast 802 LAN Summary: IEEE 802.1 is working on load protocols with multicast In article <6527@sun.uucp> guy@sun.uucp (Guy Harris) provides his normal clear explanation of many of the issues involved in trying to use multicast to distribute files. His explanatation focused on the issues involved when you tried to solve the problem above the Data Link Layer (or LLC in 802 terminology). A general architectural approach to multicast would be nice, but you might find something useful in the current IEEE 802.1 work on load protocols. It is limited to use on a single LAN and was (last time I checked) planned to support multicast. I cannot provide any further details on how they have designed the protocol because it has never been high on my priority list. If my suggestion leads you to a workable protocol, Guy is still right about the type of skills you will need to use it. Expect to learn more than you want to know about the messy details of the system, hardware, and LAN. -- Steve Langdon ...!{decwrl,sun,hplabs,ihnp4,cbosgd}!amdahl!sjl +1 408 746 6970 [I speak for myself not others.]