星型拓扑和总线拓扑的区别

先决条件 – 网络拓扑类型

1.星形拓扑：
星型拓扑基本上用于局域网，其中所有节点都连接到称为集线器的中心点，中心点将它们连接到通信通道中。这种连接方式需要 n 根电线来连接 n 个终端设备或节点。流量由星形的中心枢纽产生。中心枢纽控制所有节点之间的通信，一个节点发送的消息首先到达枢纽，然后通过枢纽传送到接收节点。

2. 总线拓扑：
总线拓扑是一种网络拓扑，其中所有设备都连接在一根电缆上，称为网络的骨干。它在电缆的每一端都有一个终结器。网线负责之间的通信设备，当数据到达电缆末端时，它会被数据线的终结器移除。当设备以线性方式连接时，这是最简单的网络拓扑。

星型拓扑和总线拓扑的区别：

S.NO.	Star Topology	Bus Topology
1.	Star topology is a topology in which all devices are connected to a central hub.	Bus topology is a topology where each device is connected to a single cable which is known as the backbone.
2.	In star topology if central hub fails then whole network fails.	In Bus topology the failure of the network cable will cause the whole network to fail .
3.	Management of high traffic and performance of the network is highly dependent on the capacity of the central hub.	Bus topology can not effectively manage high amount of traffic as if there is high traffic then performance of the network is affected.
4.	Star topology does not have any terminator.	Bus topology has a terminators at both end of the network.
5.	Star topology has high implementation cost because of central hub and extra wires required for connection.	Bus topology is less expensive than star topology.
6.	Data transmission is faster in star topology.	In Bus topology the data is transmitted slower as compared to star topology.
7.	In star topology the communication between nodes are done through central hub, message from sender node reaches central hub first then it is transmitted to receiver node.	In Bus topology the data from sender device to receiver device is sent directly.