先决条件——计算机网络|切换技巧
电路交换和消息交换都是用于将不同设备相互连接的方法。电路交换和消息交换之间的主要区别在于,电路交换是通过在两个系统之间设置物理路径来完成的,而消息交换则采用存储转发方法。
在消息交换中,数据首先由一个节点存储,然后转发到另一个节点以将数据传输到另一个系统。
电路交换和消息交换的区别:
S.NO | Circuit Switching | Message Switching |
---|---|---|
1. | Circuit Switching is done by setting a physical path between two systems. | In message Switching, data is first stored by one node then forward to another node to transfer the data to another system. |
2. | In circuit switching, data is not stored. | In message Switching, data is first stored, then forwarded to the next node. |
3. | Circuit Switching needs a dedicated physical path that’s why the messages need not be addressed. | Message switching does not need a dedicated physical path and on Message switching, The messages are addressed independently. |
4. | Circuit Switching is Geographical addressing. | Message Switching is Hierarchical addressing. |
5. | Circuit Switching is costlier than message Switching. | The cost of message switching is less than circuit switching. |
6. | Circuit switching routing is manual type routing. | Message Switching routing is not manual type routing, here route is selected during call setup. |
7. | Circuit switching reserves the full bandwidth in advance. because of that, there is a lot of wastage of bandwidth | Message Switching does not reserve the entire bandwidth in advance. and that’s why bandwidth is used to its maximum extent. |
8. | In-circuit switching, the charge depends on time and distance. | In message switching, the charge is based on the number of bytes and distance. |
9. | Congestion occurs per minute in circuit switching. | In message switching, no congestion or very little congestion occurs. |
10. | Circuit switching uses Analog and digital media on a variety of platforms. | Whereas Message switching uses digital media on a variety of platforms. |
11. | In-circuit switching there is no propagation delay. | While In Message switching there is a propagation delay. |
12. | The transmission capacity of circuit switching is very low. | while the transmission capacity of message switching is high. |