Path: utzoo!utgpu!news-server.csri.toronto.edu!bonnie.concordia.ca!uunet!samsung!zaphod.mps.ohio-state.edu!sdd.hp.com!apollo!mort From: mort@apollo.HP.COM (Stephen Moriarty) Newsgroups: comp.sys.apollo Subject: Re: Networking Apollo rings together with Cisco router boxes. Message-ID: <4fac2107.20b6d@apollo.HP.COM> Date: 7 Feb 91 14:08:00 GMT References: <1991Feb1.000434.244@zoot.avgrp.cr.rok.com> Sender: root@apollo.HP.COM Reply-To: mort@apollo.HP.COM (Stephen Moriarty) Distribution: comp.sys.apollo Organization: Hewlett-Packard Company, Apollo Division; Chelmsford, MA Lines: 21 In article <1991Feb1.000434.244@zoot.avgrp.cr.rok.com> jeff@satchmo (Jeff Detterman) writes: >Also is it possible to have two rings connected via ethernet >and token ring back each other up. In otherwords how do I make >the ethernet take over if the token ring fails. A lot of people ask for this. You can't do it. The reason is that the registries/naming servers are fixed, and can only be changed explicitly. What you're asking for is that the naming server be dynamic, trying different net.nodeid pairs upon failing to access on. The `node_data/hint_file comes into play, as well, since that's where you get your net.nodeid pair after accessing a node for the first time. If you consult Chapter 7 of, "Managing Domain/OS and Domain Routing in an Internet" for "How to move a node from one network ID to another", you'll see what needs to be done dynamically in more detail. mort ARPA: mort@apollo.hp.com UUCP: ...{decvax, umix, mit-eddie}!apollo!mort Apollo, a subsidiary of Hewlett Packard, 300 Apollo Drive, Chelmsford, MA. 01824 Argue for your limitations, and they are yours.