Implementing a transition protocol in which a first rule set for routing packets received by a group of switches during a first time period is updated to a second rule set
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United States of America Patent
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Aug 29, 2017
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app pub date -
Jul 31, 2012
filing date -
Jul 31, 2012
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Abstract
A transition protocol is provided herein in which a first rule set for routing packets received by a group of switches during a first time period is to be updated to a second rule set. During a transition period, at least some switches in the group of switches route packets to a controller, while other switches in the group of switches route packets to a next hop that is unchanged by the change in the rule set. The controller forwards packets that are received from at least some of the switches in the group to a destination node each of the packets, as determined from the updated rule set.
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