国家重点实验室 多播和单播 ●● ●●● ●●●● Receiving devices Sending Device A Multicast “ Some of the coGroup State Key Lab on ISN, Xidian University
2021/2/11 State Key Lab. on ISN,Xidian University 19 Multicast “Some of the Group” Sending Device A Receiving Devices 多播和单播
国家重点实验室 多播和单播 ●● ●●● ●●●● Receiving devices Sending Device A Unicast 2021/2/11 State Key Lab on ISN, Xidian University
2021/2/11 State Key Lab. on ISN,Xidian University 20 Unicast Sending Device A Receiving Devices 多播和单播
国家重点实验室 多播和单播 ●● ●●● ●●●● Receiving devices Sending Device A Unicast “ Just one” 2021/2/11 State Key Lab on ISN, Xidian University
2021/2/11 State Key Lab. on ISN,Xidian University 21 Unicast “Just One” Sending Device A Receiving Devices 多播和单播
国家重点实验室 ●● ●尺度: ●●● Storage area network。° <1m Interprocessor Processors Example distance located in same 1 m Square meter Personal area network 10m Room 100m Building Local area network 1 km Campus 10 km City Metropolitan area network 100km Country Wide area network 1000km Continent 10000km Planet The Interne 2021/2/11 State Key Lab on ISN, Xidian University
2021/2/11 State Key Lab. on ISN,Xidian University 22 ⚫ 尺度： < 1m Storage area network
￥1.21局域网( Local area networks) ●● ●●● ●●●● ●特点:公司或校园,低迟延,便于部署和管理 传输速率:10to0 D Mbps,1Gbps,10Gbps 拓扑:总线、环、星型 mputer 中 - Cable () Fig. 1-3. Two broadcast networks. (a) Bus. (b)Ring 2021/2/11 Slate ey Lau OI, Ndlani UinversIty
2021/2/11 State Key Lab. on ISN,Xidian University 23 1.2.1 局域网 （Local area networks） ⚫ 特点: 公司或校园,低迟延, 便于部署和管理 ⚫ 传输速率: 10 to 100 Mbps, 1Gbps, 10Gbps ⚫ 拓扑: 总线、环、星型