Comprehensive comparison between static and dynamic route tables

A fixed route table is called a static route table, while a route table automatically adjusted by the router according to the running status of the network system is called a dynamic route table, the main task of a router is to find an optimal transmission path for each data frame passing through the router and transmit the data to the destination site effectively. It can be seen that the routing algorithm is the key to selecting the optimal path.

To do this, the route Table (Routing Table) is stored in the vro for route selection. For example, a route table is like a map we usually use. It identifies various routes. The route table contains the subnet information, the number of online routers, and the name of the next router. The static route table can be set by the system administrator or dynamically modified by the system. The router configuration can be automatically adjusted or controlled by the host.

1. Static route table

The system administrator sets a fixed route table in advance, which is called a static route table. Generally, it is set in advance according to the network configuration during system installation. It will not change as the network structure changes in the future.

2. Dynamic Route table

A dynamic route table is a route table that the router automatically adjusts according to the running status of the network system. The router selects the Routing Protocol) to automatically learn and remember the network running status, and automatically calculate the optimal path for data transmission as needed. A Router usually depends on the dynamic route table established and maintained to determine how to forward data. Dynamic Route table capability refers to the maximum number of route table entries in a route table. Because the number of routers that execute the BGP protocol on the Internet usually has hundreds of thousands of Route entries, this project is also an important embodiment of the router capability.

Static Routing

Static Routing refers to the routing information manually configured by the network administrator. When the network topology or link status changes, the network administrator needs to manually modify the Static Routing Information in the dynamic routing table. Static Routing information is private by default and will not be transmitted to other routers. Of course, network administrators can also make vrouters shared by setting them. Static Routing is generally applicable to a relatively simple network environment. In such an environment, the network administrator can easily understand the network topology and set the correct routing information.

Dynamic Routing

Dynamic Routing means that a vro can automatically create its own dynamic route table and adjust it according to actual changes. The operation of the dynamic routing mechanism depends on two basic functions of the router: maintenance of the route table; timely exchange of route information between routers.