What exactly does the so called switch and router debugging refer to?

Yes, routers generally integrate a 4-port switch and support cascading.

1. Switches are generally used in LAN (Layer 3 switches are not considered here).

Because the switch can only recognize MAC addresses, it does not have a routing function and is generally only used in the local area network. However, it has a very important feature, that is, regardless of the data traffic, the data traffic of each port is the same, and the data transmission of other ports will not be affected because of the large data traffic of one port.

2. The router has a routing function, which gives it the ability to exchange data with the metropolitan area network and the wide area network, because it works in the third layer and can identify the IP address. However, routers cannot be offload like switches, but a large amount of data traffic on one port will affect the data exchange of other ports.

3. Therefore, the router can replace the switch (theoretically), but the speed will be greatly reduced, which will bring great trouble to the LAN data exchange, so in reality, the router will not replace the switch.

4. General home users, small organizations (6-8 people) composed of this kind of small and micro LAN, the data traffic itself is not very large, so the contrast between using routers and switches to do LAN transmission is not obvious, when you use routers instead of switches in large organizations, the bottleneck will soon be highlighted.

Ordinary routers have a switch function.

Routers generally have WAN ports, LAN ports, console ports, etc. The LAN port is a common switch function.

Yes, the router can be used as a switch, and the signal loss is less than that of the switch.

The LAN part of an ordinary home router is a switch.

The router can be used as a switch, but the interface is missing

There are a few differences:

First, the layers are different: the router is in the third layer of the OSI - the network layer, while the switch is in the second layer - the data link layer;

The second is that the table is different: the router has a router table, while the switch has a bridge table;

Third, the functions are different: the router is a connection device between different network segments, mainly with routing selection, congestion control, and storage functions; The switch only has the effect of extending the same network to more terminals.

Fourth, the protocols are different: the protocols used by routers are mostly related to software, and the protocols used by switches are mostly related to hardware interfaces.

Fifth, the address is different: the address targeted by the router is an IP address, which can be allocated statically and dynamically, and is changing; The address of the switch is the MAC address, which is solidified in the device when the equipment manufacturer leaves the factory, and can only have one and cannot be changed.

The switch is a layer 2 device, the routing is layer 3, the switch is based on the MAC address table**, the route is based on the routing table, the switch hardware**, the routing is software, the switch is used for Ethernet, which can be understood as the local area network, and the routing is used for the Internet The backplane matrix of the switch makes the communication between each two ports reach line speed, and a variety of routing protocols can be run on the route, so that the route can choose the optimal path, in short, it is almost

The switch can isolate the collision domain and the broadcast domain can not isolate the broadcast domain, and the router can isolate the conflict domain and the broadcast domain to reduce unnecessary bandwidth waste.

The switch is responsible for the distribution of traffic, and the routing is for photoelectric conversion.

Switch: A switch that has a software system that connects network terminals and is capable of breaking the collision domain, but cannot split the broadcast domain.

Both are internet-connected devices, and the main difference between them is that a switch takes place at the second layer of the network, the data link layer, while a router takes place at the third layer of the network. This distinction is a fundamental difference in the way the two work.

Refers to different routers: Buried in the forest is a hardware device that connects two or more networks, acts as a gateway between the networks, and is a dedicated intelligent network device that reads the address in each packet and then decides how to transmit it. Switches:

It is a network device used for electrical (optical) signals**.

Discuss in detail how routers and switches work and differ from computer networks, which are often interconnected by many different types of networks. If several computer networks are only physically connected together and do not communicate with each other, then such interconnection is of little practical significance.

In general, the main differences between routers and switches are reflected in the following lease aspects: (1) Different working levels: The original switch works at the data link layer of the OSI RM open architecture, that is, the second layer, while the router is designed to work at the network layer of the OSI model from the beginning.

The working level is different: the switch works at the data link layer of the OSI open system interconnection model, that is, the second layer; Routers, on the other hand, work at the network layer of the OSI model, i.e., Layer 3. The principle of a relative switch is simpler than that of a router.

Summary. A switch can be connected to a PC with Internet access for other PCs to share the Internet, but one PC must be set as the host, and the other PCs can only access the Internet when the host is turned on.

The router has the function of switch and host, which can be connected to a dedicated line or moden that can access the Internet through the WAN port, and the other LAN port can form a LAN to share the Internet with other PCs through the network cable. The advantage is that you don't need to occupy a PC as the host, as long as the network is turned on by the router, you can access the Internet at any time.

Let's put it simply!!

Routing can automatically assign IP addresses to your LAN computer! Implement virtual dialing.

Switches can only be used to distribute network data! In layman's terms, it is said that a network cable is divided into several followers!!

The most essential difference between a router and a switch:

Unlike switches, routers must perform a certain () in order to pick up people in the network and work properly.

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The switch can be connected to a PC with Internet access for other PCs to share the Internet, but more than one PC must be set as the host, and other PCs can only access the Internet when the host is turned on. The router has the function of switch and host, which can be connected to a dedicated line or moden that can access the Internet through the WAN port, and the other LAN port can form a LAN to share the Internet with other PCs through the network cable. The advantage is that Zhuchang does not need to occupy a PC as a host, as long as the network is turned on by the router, you can access the Internet at any time.

Let's talk about it briefly!! Routing can automatically assign IP addresses to your LAN computer! Implementing a virtual dial-up switch can only be used to distribute network data!

In layman's terms, it is said that a network cable is divided into several followers!! The most essential difference between a router and a switch: a router:

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