先决条件 – 网络拓扑类型
1. 网状拓扑：
网状拓扑是一种网络拓扑，其中每个节点都通过网络中的专用链路完全连接到其他每个节点。在网状拓扑中，连接的方式是对于 n 个节点，需要 n(n-1)/2 条链路。由于布线成本高，网状拓扑非常昂贵。
2.树拓扑：
树拓扑是一种网络拓扑，其中节点在树的设计中被组织。树形拓扑由分支电缆起始的根节点和分支电缆以分层方式将根节点与所有其他节点连接起来。树形拓扑比网状拓扑便宜。
Mesh Topology和Tree Topology的区别如下：
| S.No. | Mesh Topology | Tree Topology |
|---|---|---|
| 1. | In Mesh topology, each node is connected to every other node fully through dedicated link. | In tree topology, the nodes are organized in the design of a tree. |
| 2. | Mesh topology is also known as mesh network. | Tree topology is also called as hierarchical topology. |
| 3. | In Mesh topology, data is transmitted through two techniques i.e., routing and flooding. | In tree topology, data is transmitted through branching cable having no loops. |
| 4. | The amount of cable needed in mesh topology is very high. | The amount of cable needed in tree topology is less than the mesh topology. |
| 5. | Security is very high in mesh topology. | Security is high in tree topology but less than mesh topology. |
| 6 | Mesh topology is very expensive as cable used is more. | Cost of tree topology is less as compared to mesh topology. |