| CPC H04L 45/74 (2013.01) [H04L 12/4633 (2013.01); H04L 12/4641 (2013.01); H04L 61/103 (2013.01)] | 20 Claims | 

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               1. A packet transmission method implemented by a first virtual extensible local area network tunnel endpoint (VTEP), wherein the method comprises: 
            receiving a first packet from a first host, wherein the first host is multi-homed to the first VTEP and a second VTEP; 
                encapsulating a header into the first packet to obtain a second packet; 
                sending, based on a first Internet Protocol (IP) address corresponding to the first host, the second packet to a third VTEP; and 
                continuing, when a quantity of VTEPs to which the first host is multi-homed changes from a first quantity to a second quantity, sending packets for the first host using the first IP address. 
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