IPTV内部培训资料.ppt

IPTV内部培训 什么是IPTV IPTV－Internet Protocol of Television Not Cabled TV Not Digital TV Not Mobile TV IP based TV, just like, but not same as PPlive,PPstream etc. 什么是IPTV 什么是IPTV IPTV的业务传播方式 点播 组播 IPTV的协议 IPTV的监测产品 IPTV的监测产品 IPTV监测产品功能 End-to-end network performance (N-QoS) available bandwidth Delay/jitter Packet loss Congestion positioning End-to-end transport performance (T-QoS) MDI（RFC4445） RTP TS-PSI/SI TS-PCR jitter, shift, … TS-PID Channel switching Channel availability Contents quality(C-QoS) Audio: MOS Video: VQM Protocol analysis and call trace(P-QoS) HTTP/RTSP IGMP RTP/TS MPEG4/H264 * * IP TCP UDP RTSP RTP/RTCP SDP TS/ISMA App Control MPEG4/H264 Decoder IGMP Media Encoder PIM-SM/DM DSLAM R R R BAS zctt NP-IPQoS-TV NP-IPTV zctt DSLAM BAS NP-IPTV zctt NP-IPTV Solution DSLAM R R R BAS IPTV-PP NOC Switch IPTV-AP zctt zctt NP-IPQoS-TV NC-IPTV Solution IP/TCP/UDP MPEG4/H264 TS MDI Experience by end-users IGMP/RTSP/RTP T-QoS C-QoS N-QoS P-QoS