METHOD, DEVICE AND SYSTEM FOR ESTABLISHING MULTI-CASCADE CHANNEL

摘要

Embodiments of the present invention disclose a method, an apparatus and a system for establishing a multi-cascade channel. The method includes: receiving a site code stream obtaining request, where the request includes at least one identifier of a site; receiving an address and a port that are corresponding to the identifier of a site according to encoding information of a stream of a site code identified by the identifier of a site, and the address and the port that are corresponding to the identifier of a site; establishing a multi-cascade channel used for transmitting the code stream of the site identified by the identifier of a site; and sending the code stream of the site identified by the identifier of a site through the multi-cascade channel. The present invention solves the problem in the prior art that not all site code streams expected to be obtained can be obtained when the number of multi-cascade channels required for code streams expected to be obtained exceeds the specified number of multi-cascade channels that must be specified before a conference, thereby achieving the purposes of dynamically establishing a multi-cascade channel as required and obtaining all site code streams expected to be obtained.