Priority-based data transmission method and device

Abstract

The invention discloses a priority-based data transmission method and a device. The method comprises the following steps: an ED (edge device) acquires priority, bandwidth and MAC address corresponding to other EDs connected with servers; ED records the corresponding relations among the MAC address, the priority and the bandwidth in a priority information table, and records the used bandwidth in the corresponding relations as a designated value; ED acquires the target MAC address of data, and acquires the corresponding priority, the bandwidth and the used bandwidth according to the target MAC address matched with the MAC address recorded in the priority information table; and when the acquired used bandwidth is smaller than the acquired bandwidth, ED sets the priority as the acquired priority in an IP message header packaging the data, and transmits the packaged data. In the embodiment of the invention, the flow of an important server can be forwarded in time.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of communications, and in particular, to a priority-based data transmission method and device. Background technique [0002] With the rapid development of the Internet, the geographical span of the network is getting wider and wider. In order to provide better services, users usually deploy data centers in different places, and virtual machines can be freely migrated between these data centers to achieve load sharing and high-speed Reliability: Since the virtual machine migration process is transparent to users and the IP address cannot be changed, it is required to implement Layer 2 network interconnection between data centers in different places. For this reason, the EVI (Ethernet Virtualization Interconnection) network is proposed. [0003] Such as figure 1 As shown, it is a schematic diagram of the EVI network network. By dividing the overall network into a core network (public...

AI Technical Summary

Problems solved by technology

[0005] In the prior art, since the EVI network is deployed in different places in the data center, the servers in the data center have the same priority, that is, the traffic transmitted by all servers on the public network has the same priority, so once data congestion occurs, the traffic of important servers It will not be guaranteed first. In the case of traffic attacks, the traffic of important servers cannot be forwarded in time, which will lead to unstable operation of the data center

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