先决条件 – 网络拓扑
星形拓扑:
在星型拓扑中,节点连接到中央集线器或路由器,其中信息从中央集线器或路由器传播到所有节点。如果有n个节点,则星型拓扑中有n条链路。节点之间完全通过专用链路相互连接,其中信息从节点传输到节点。
图 –星型拓扑
网状拓扑:
在Mesh拓扑中,节点之间完全通过专用链路相互连接,其中信息从节点到节点传播,如果有N个节点,Mesh拓扑中有N(N-1)/2条链路。
图 –网状拓扑
星型拓扑和网状拓扑的区别:
S.NO | Star Topology | Mesh Topology |
---|---|---|
1. | In star topology, the nodes are connected to the central hub or router. | In mesh topology, the nodes are connected to each other completely via dedicated link. |
2. | There are N links in Star topology, if there are N nodes. | There are N(N-1)/2 links in Mesh topology, if there are N nodes. |
3. | The cost of Star topology is less. | The cost of Mesh topology is expensive. |
4. | The complexity of Star topology is quite simple. | The complexity of Mesh topology is complex. |
5. | In star topology, the information is travel from central hub or router to all the nodes. | In mesh topology, the information is travel from nodes to nodes. |
6. | Star topology is very good extensible. | Mesh topology is poor extensible. |
7. | In star topology, twisted pair cable is used for connection. | In mesh topology, twisted pair cable, coaxial cable and optical fiber cable are used for connection on the basis of type of networks. |
8. | Star topology is used in LAN as setup is easy. | Mesh topology is used in WAN. |