Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!mdisea!jackb From: jackb@MDI.COM (Jack Brindle) Newsgroups: comp.sys.mac.comm Subject: Re: Apple's FCC request Message-ID: <1991Apr17.234623.7251@MDI.COM> Date: 17 Apr 91 23:46:23 GMT References: <1991Apr11.140850@ap.co.umist.ac.uk> <14937@life.ai.mit.edu> <1991Apr17.202011.20724@cs.uoregon.edu> Sender: news@MDI.COM Organization: Motorola, Mobile Data Division - Seattle, WA Lines: 18 In article <1991Apr17.202011.20724@cs.uoregon.edu> chris@idiotix.cs.uoregon.edu (chris hecht) writes: >Just a thought on radio based networks: What is to stop someone from >walking into a building with a radio net and hiding a little xmitter >which puts out a Chernoble(sp?) packet every half hour or so. > >The network would grind to a halt, then be shut down and powered up >again, just in time for another packet o' death. This depends entirely on the protocol in use. If properly designed, the biggest effect would be to cause a retransmission. It indeed should NOT shut down. Remember, even though the network might be ethernet compatible, it probably is not using ethernet as a link layer protocol over the air. Thus the "packet o' death" would have to be sent within the (probably) proprietary protocol. Makes things a bit difficult. This actually seems like a remote scenerio... (Which thus makes it quite likely to happen :-). Jack Brindle ham radio: wa4fib/7