IP组播是面向组接收者的有效数据通信方式，利用一种协议将IP数据包从一个源传送到多个目的地，将信息的拷贝发送到一组地址，到达所有想要接收它的接收者处。
It's an efficient way to deliver IP data package from one source to more destination, send the copy of information to a group of address, to all the recipients at the same time.
MVPN是以新的IP隧道技术为基础构建起来的，该技术将组播组地址用作隧道目的地址。
MVPN is built upon a new IP tunneling technology that USES multicast group addresses as tunnel destination addresses.
MVPN是以新的IP隧道技术为基础构建起来的，该技术将组播组地址用作隧道目的地址。
MVPN is built upon a new IP tunneling technology that USES multicast group addresses as tunnel destination addresses.
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