multicast backbone

基本解釋

National natural science foundation of China network (NSFCNET) is the first high-speed computer network test bed providing native multicast service across its backbone .
“中國高速互聯研究試驗網”是我國第一個全網支持非隧道組播協(xié)議的下一代高速互聯網試驗床。
China Education and Research Network (CERNET) construct and realize the multicast based video conference system on CERNET backbone and make it the communication platform for CERNET nodes.
中國教育和科研計算機網（CERNET）在全國主干節(jié)點上構建和實現了組播視頻會議系統(tǒng)，成為全國教育網各節(jié)點的視頻會議交流平臺。