Overlay switch
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United States of America Patent
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Jan 9, 2018
Issued Date -
N/A
app pub date -
Jun 16, 2015
filing date -
Jun 27, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention discloses an overlay switch (OSW) and a method used by the same. A received unicast packet needs to pass a waypoint chain including a number of waypoints. A network address of a first waypoint of the waypoint chain and an underlay network address of a second OSW connected to the first waypoint are obtained. In response to a determination that the second OSW is not the first OSW the unicast packet is encapsulated into a first underlay network packet according to a specification of an overlay network. A field of a destination header of the first underlay network packet includes the underlay network address of the second OSW. The first underlay network packet is sent to the second OSW.
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