Tunnel type selection method and apparatus
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United States of America Patent
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Oct 20, 2016
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Apr 21, 2014
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Abstract
A tunnel type selection method and apparatus, which relate to the field of information technologies, and can reduce data packet forwarding complexity. The method includes first, combining, by a controller, a code and a label value that are corresponding to a tunnel type supported by a next-hop switch, generating an OXM_OF_TUNNEL_ID match field, and sending a forwarding policy that carries the OXM_OF_TUNNEL_ID match field to a previous-hop OPENFLOW switch, then, extracting, by the previous-hop OPENFLOW switch, the code and the label value that are corresponding to the tunnel type, and encapsulating a data packet according to the code and the label value that are corresponding to the tunnel type, finally, sending, by the previous-hop OPENFLOW switch, the encapsulated data packet to the next-hop switch. The embodiments of the present disclosure are applicable to data packet forwarding in a hybrid networking environment of an OPENFLOW switch and a conventional switch.
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