Data transmission method, related device and communication system

Abstract

The embodiment of the invention discloses a data transmission method, a related device and a communication system. A data transmission method may include: a first network element receives a first application layer data packet from a user terminal, an application layer header of the first application layer data packet carries identification information of a destination Internet data center, and the first network element is an acceleration A network element in the network; according to the identification information of the destination Internet data center carried in the application layer header of the first application layer data packet, determine the first network element in the routing path for transmitting the first application layer data packet to the destination Internet data center The communication address of the next-hop network element; forwarding the received first application layer data packet to the next-hop network element based on the determined communication address of the next-hop network element. The technical solutions provided by the embodiments of the present invention are beneficial to improving the flexibility of routing processing of user data packets by data transfer network elements, thereby improving the reachability of user terminals to access the destination IDC.

Description

Technical field [0001] The present invention relates to the field of network technology, and specifically mainly relates to a data transmission method, related devices and communication systems. Background technique [0002] With the rapid development of Internet technology and terminal technology, many Internet services (such as WeChat services, etc.) involve network data transmission and data interaction. Speeding up data transmission between network nodes is an important means to improve service quality and enhance user experience. [0003] The following scenarios exist in the prior art. Local users can access the destination Internet Data Center (IDC, Internet Data Center) through the accelerated network by accessing the access network element in the local accelerated network. However, after the user roams to other areas, the user usually cannot successfully access the destination Internet data center through the accelerated network by accessing the access network element in t...

AI Technical Summary

Problems solved by technology

However, when the user roams to other areas, the user usually cannot access the destination Internet data center through the acceleration network by accessing the access network element in the local acceleration network.

[0004] In the process of research and practice, the inventors of the present invention found that the prior art has at least the following technical problems: in the prior art, when a certain access network element in the acceleration network receives a data packet from a certain user terminal, the The access network element directly forwards the received data packet to a specific IDC regardless of where the data packet comes from. However, when the user terminal is in the roaming state, the specific IDC that the data packet sent by the access network element may not The IDC that the user terminal actually wants to access

Images