False Loop Detection in the IEEE 1394 Tree Identify Phase |
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Authors: | Judi Romijn |
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Affiliation: | (1) Computing Science Institute, University of Nijmegen, Nijmegen, The Netherlands, NL;(2) Computing Science Department, Eindhoven University of Technology, Eindhoven, The Netherlands, NL |
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Abstract: | The physical layer of the IEEE 1394 (FireWire, i-Link) architecture contains a protocol for spanning a tree in the network
topology, which fails if the topology contains a loop. We show that the timing requirements for both the 1394-1995 and 1394a-2000
standards are too lenient: these allow for scenarios in which there is no loop in the topology, but the tree-spanning protocol
does detect one. The scenarios are found by the model checker UPPAAL.
Received August 2001/Accepted in revised form August 2001
Correspondence and offprint requests to: J. M. T. Romijn, Computing Science Department, Eindhoven University of Technology, PO Box 513, 5600 MB Eindhoven, The Netherlands.
Email: J.M.T.Romijn@tue.nl |
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Keywords: | : Algorithm Dynamic network Loop detection Protocol Real-time Timed automata Spanning tree Verification |
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