DISCOVERY METHOD, DEVICE AND SYSTEM FOR APPLICATION-LAYER TRAFFIC OPTIMIZATION SERVER

摘要

Disclosed are a discovery method, device and system for an application-layer traffic optimization server, which relate to the field of communications, reduce the cross-domain traffic and meet the demand of network optimization of an ISP of a network as an Internet access point. The discovery method for an application-layer traffic optimization server relates to one side of a terminal, and comprises: obtaining the domain name of a proxy server of a terminal data layer which accesses the Internet; according to a query name which is constructed using the domain name of the proxy server, obtaining the address of an application-layer traffic optimization (ALTO) server related to the proxy server from a domain name server (DNS); and according to the address of the ALTO server, communicating with the ALTO server. The embodiments of the present invention are mainly used for the communication between a terminal and an ALTO server.