Directed echo requests and reverse traceroute
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United States of America Patent
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Jun 29, 2010
Grant Date -
Apr 3, 2008
app pub date -
Sep 29, 2006
filing date -
Sep 29, 2006
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Abstract
In one embodiment, a first node may send an out-of-band message to a second node to request that the second node initiate an in-band echo request for a specified tunnel, e.g., toward one or more third nodes. Upon receiving the in-band echo request, one or more responding nodes (e.g., generally the third nodes) may send a response to the first node. This “directed echo request” technique may also be used in conjunction with a “reverse traceroute” technique.
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