Loop back testing for multi-protocol hybrid networks
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United States of America Patent
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Aug 30, 2005
Grant Date -
Oct 31, 2002
app pub date -
Apr 27, 2001
filing date -
Apr 27, 2001
priority date (Note) -
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Abstract
A hybrid network (100) includes a plurality of network elements (102, 106, 110, 114) that are coupled together by communication links (116, 118, 120, 122, 124). The network elements operate on different communications protocols. A loop back test message traverses a path (140) across network elements to test the integrity and quality of the path. Each network element that receives the loop back message modifies the message in a predetermined manner. The originator of the message verifies that the message was modified in an appropriate manner and in an appropriate time frame to determine integrity and quality.
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