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This article mainly introduces "what are the basic knowledge points of the router in the network construction". In the daily operation, I believe that many people have doubts about the basic knowledge points of the router in the network construction. The editor consulted all kinds of materials and sorted out the simple and easy-to-use operation methods. I hope it will be helpful for everyone to answer the doubts about "what are the basic knowledge points of the router in the network construction?" Next, please follow the editor to study!

So what is routing?

Routing is a message to the destination, which indicates the direction to the destination, just like navigation

We often hear a word in routers-routing table (Routing Information Base)

So what is a routing table?

The routing table is actually used by the router to store or store some information to the destination. In the process of data transmission, the router will find the destination path according to the information in the routing table. If this information does not exist in the routing table, the packet will be discarded.

We can view the current routing table on the router by show ip route

There are two types of routing:

1 > static routes-routes that are added or configured manually

2 > dynamic routing-routes learned dynamically through routing protocols

Note: there is also a route called default routing, which is a special mode of routing.

How static routes are configured

Ip route destnation_ip destnation_ip_netmask next-hop-ip/interface_name

Ip route 172.16.0.0 255.255.255.0 192.168.1.100

Ip route 172.16.0.0 255.255.255.0 s0/1

Configuration of default rout

Ip route 0.0.0.0 0.0.0.0 s0swab 1 (192.168.1.100)

What is a routing protocol

Routing protocols are classified in terms of scope of work

1 > the internal routing protocol IGP works in an autonomous system

2 > the external routing protocol EGP works outside the self-contained system

According to the working principle, it is divided into:

1 > distance vector protocol: such as RIP, this protocol looks for the best path to the target network by judging the distance. Every time a packet passes through a router, it is called a hop. The route that uses the least number of hops to reach the target network is considered to be the best route.

2 > Link-State Protocol OSPF IS-IS

3 > Hybrid protocol EIGRP

It can also be divided into

1 > classful protocol RIP-V1 IGRP advertises without mask and aggregates itself at the boundary of the main class, not manually

2 > classless Protocol RIP-V2 EIGRP OSPF (CIDR)

At this point, the study on "what are the basic knowledge points of routers in network construction" is over. I hope to be able to solve everyone's doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

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