Automatic edge port and one way connectivity detection with rapid reconfiguration for shared media in spanning tree configured bridged Local Area Networks
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United States of America Patent
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Issued Date -
Jun 3, 2004
app pub date -
Aug 28, 2003
filing date -
Aug 29, 2002
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An improvement to the protocols used communication devices in data networks that require loop-free forwarding of data frames provides for rapid use of shared media links after changes in physical connectivity, for rapidly detecting the edge of the network so as to reduce interruptions of service by mechanisms that protect against loops, for preventing loops caused by one way connectivity, such as can occur if transmitter or receivers are broken or poorly connected to links, and for preventing loops caused by loop back. The improvement is applicable to the Bridged Local Area Networks and the spanning tree protocols specified in IEEE Standards 802.1D and 802.1Q and their amendments and revisions.
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