PLACEMENT OF SERVERS IN AN IP TELEVISION NETWORK

摘要

According to one example embodiment the placement of video distribution servers and acquisition servers in a live television IPTV network is considered to be a separate process This process may be based, for example, on historical data, number of subscribers, subscribers service quality, some video distribution servers may be selectively placed closer to the subscribers, i e, at some central offices or intermediate offices, instead of at the video hub office These local video distribution servers (those video distribution servers not located at video hub office) may selectively receive popular TV channel streams just like regular video subscribers based on the multicasting protocol from the acquisition server Whenever a subscriber wants to switch to a channel (or recover packet loss for an on¬ going channel), if the channel is on the popular channel list, the service may be accomplished by the local video distribution servers.