为了使Udp组播正常工作，路由器必须支持它吗? [英] In order for Udp multicast to work, router must support it?

问题描述

我想知道udp多播能否正常工作，路由器必须支持吗?

I am wondering for the udp multicast to work, router must support it?

推荐答案

多播基于动态生成的树，这些树可以(理论上)跨越整个Internet.这些多播树基于两种协议:

Multicast is based on dynamically generated trees that can (theoretically) span the entire internet. These multicast trees are based on two protocols:

• IGMP :Internet组管理协议.由像我和您这样的接收者和用户使用.
• PIM :协议无关的组播.路由器用来相应地复制和重新路由数据包.

• IGMP: Internet Group Management Protocol. Used by receivers and users like me and you.
• PIM: Protocol Independent Multicast. Used by routers to replicate and reroute the packets accordingly.

客户端必须与IGMP兼容，而路由器也必须与PIM兼容.

The client needs to be IGMP-compatible, and the routers need to be PIM-compatible.

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