Awhuxlb.211 net.general utzoo!decvax!harpo!zeppo!whuxlb!ech Thu Apr 15 17:47:44 1982 IBM net IBM is hardly using the "most unreliable" method, nor is ANYBODY (including IBM!) likely to ram anything down anybody's throat. Rather, IBM is using a Ringnet-type LAN, such as have been running at a number of locations (e.g. Cambridge U.) for several years. The critical component in any LAN is the "dead-man switch" in the connection which insures that no individual component failure can bring down the net. Great care must be put into the design of that component REGARDLESS of the lowest-level protocol. If you want to continue this discussion, and aren't just anti-IBM for the sake of it, move this discussion to net.lan. =Ned Horvath=