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

Claim 16:
17. A first site located 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 first site comprises a switch and a virtual machine;
the virtual machine is configured to send a first data packet to the switch; and
the switch is configured to: receive the first data packet, 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, the routing information indicating a bearer link for transmitting the first data packet, and send the first data packet to the second site based on the routing information, the first data packet being 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.