Apparatus and method for transferring frames through aggregated communication links
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United States of America Patent
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Jan 3, 2012
Grant Date -
Sep 10, 2009
app pub date -
Dec 23, 2008
filing date -
Mar 5, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
A communication apparatus that performs instant switchover from working links to backup links. The communication apparatus has a plurality of output interfaces each comprising a set of physical links constituting a different portion of a logical link. Aggregate destination management data is provided to define which physical links to use to forward frames. Upon receipt of a frame, a frame distributor consults the aggregate destination management data to select an output interface and its physical links for use in transmitting the received frame, from among the physical links constituting the logical link. When a switchover command is received, the frame distributor performs switchover from the current physical links to other physical links belonging to another output interface.
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