Method for changing IPTV playing address pool based on SDN technology

• Main Authors: CHEN XIN, MENG LUFENG, YU HAO, ZHANG WEIHUA, LU ZHE, ZHU YINGDE, TAN YI, LU XIAODAN
• Format: Patent
• Language: Chinese; English
• Published: 23.08.2019
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; PICTORIAL COMMUNICATION, e.g. TELEVISION; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

The invention discloses a method for changing an IPTV (Internet Protocol Television) playing address pool based on an SDN (Software Defined Network) technology. The method comprises the following steps of: adding SDN switching equipment and a multicast IP (Internet Protocol) address change server between a multicast source and a multicast transmission switching network; generating a multicast IP address pool change script according to a user-defined IP change rule, and setting an execution time rule of the script; enabling the multicast IP address change server to execute the script within thespecified time according to the execution time rule, and control the SDN switching equipment to modify the flow table so as to modify the multicast IP address pool; notifying the EPG server to updatemulticast IP addresses corresponding to the channel programs, and issuing a channel list to the set top box; and enabling the network set top box to receive the video signal according to the multicast IP address corresponding