Patent ID: 11870701
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 8:
9. A switch located at a first site in a data center, wherein the data center further comprises a second site, at least two links are established between the first site and the second site, each link corresponds to at least one service type, the switch comprises at least one memory and at least one processor,
the at least one memory is configured to store computer program instructions that, when executed by the at least one processor, cause the switch to:
obtain a first data packet sent by a virtual machine, wherein the switch and the virtual machine are located at the first site;
identify a service type of the first data packet;
determine routing information of the first data packet based on the service type of the first data packet, wherein the routing information indicates a bearer link for transmitting the first data packet;
send the first data packet to the second site based on the routing information, wherein the first data packet is transmitted to the second site through the bearer link;
obtain a second data packet of the virtual machine, wherein the second data packet and the first data packet have a same service type and a same destination address;
determine differential data between the first data packet and the second data packet; and
send the differential data based on the routing information, wherein the differential data is transmitted to the second site through the bearer link.