Unverified50% confidenceFactExact time

电信运营商在自有封闭网络中的 IPTV 系统通常采用 IP 组播技术，依赖 IGMP 和 PIM-SM 等协议

1

Sources

50%

Confidence

Long-term

Relevance

7/22/2026

First Seen

Sources

iptv-org: The Open-Source Project with 130K Stars Aggregating Public IPTV Channels Worldwide

Related Claims

UnverifiedIPTV 分发存在单播（Unicast）与组播（Multicast）两种模式，运营商封闭网络常用组播节约骨干网带宽，而开放互联网因跨AS组播报文在ISP边界被丢弃几乎全部基于单播 HTTP/HTTPS 传输81% similar Unverified开放互联网天然不支持大规模组播路由，因此面向公众的互联网 IPTV 几乎全部基于单播 HTTP/HTTPS 传输70% similar

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