Our company is an ADSL routing switch network structure

Use another gateway.

All set to a static IP address, and then control from the gateway which computers can connect to the Internet.

Automatically obtaining IP addresses will cause IP conflicts, but the switch is better and will have certain anti-collision functions.

Check the virus to see if there is an ARP attack. If not, change the route.

1. A router is a device used to expand network data concurrency.

2. The switch is a device used to connect PCs in parallel, which is equivalent to a power socket.

3. The current market router can be used when the switch is not configured with WAN port.

4. The switch cannot be used as a router.

It is not unreasonable to talk upstairs, from the previous theory, one is a layer two equipment and the other is a layer three equipment, but now the functions of switches and routers are becoming more and more powerful, beyond some previous understandings.

The switch does not have a routing function, and the router can be used as a switch with routing.

Clause.

1. The use of switches to access the Internet is to dial separately, and each uses its own broadband account, and everyone does not affect each other's Internet access. The router shares a broadband account, and everyone will influence each other when surfing the Internet.

Clause. 2. The switch works at the trunk layer, and the switch addresses according to the MAC address. Routers work at the network layer and are addressed based on IP addresses. Clause.

Third, the switch can make a plurality of computers connected to it form a local area network, if there is a ** server, it can also realize the function of Internet access at the same time, but the switch does not have the function of automatic identification of data packet sending and arrival address of the router.

Clause. Fourth, the router provides firewall services. The router only transmits packets at a specific address and does not transmit packets that do not support routing protocols.

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.

1. The functions are different.

The switch is equivalent to an additional network interface, just like a network of ten people, there is no enough interface, at this time you can plug in the switch, but if you want to surf the Internet, you must use a router at this time. In other words, the switch needs to dial separately for Internet access, and the router can share a broadband.

2. Different addressing methods.

The switch addresses based on the MAC address. Routers work at the network layer and are addressed based on IP addresses.

3. The number of connected networks is different.

The switch can be connected to multiple computers to form a local area network, and the switch does not have the function of automatic identification of data sending and arriving addresses by the router.

4. Firewall services are different.

The router is able to provide a firewall server, and the router can only send specific packets.

Answer]: The main function of a router is to do datagram**, and the interface of the router is one of the main objects to consider in the configuration of dust defense routers. Each interface has its own name and number, and the full name of the interface is composed of its type identifier or at least one number, starting with 0.

There are roughly two kinds of router design, one is modular design, a router is composed of multiple modules with different functions, of which the interface module is one of the important modules. The other is cured design.

The interface types of routers are generally divided into two types: LAN interfaces and WAN interfaces.

LAN Interface:

AUI: The AUI port is an interface used to connect to the coaxial cable.

RJ-45 interface: This is our most common port, and it is a common twisted pair Ethernet port.

SC interface: optical fiber port. In general, this fiber interface is connected to a switch with fiber ports through fiber optics.

WAN interface:

RJ-45: Can also be used for WAN connections.

AUI interface: Same as above, connected by thick coaxial cable.

High-speed synchronous serial port: This port is mainly used to connect to DNN, frame relay, and other networks.

Configuration interface: Console port: Same as the switch.

AUX interface: An asynchronous port that is mainly used for remote configuration. Can be connected to the modem faction.

Differences between switches and routers.

The switch sets up an intranet LAN, and the internal network is fast.

The router is the connection between the internal and external networks, and it is mainly a routing protocol, which is convenient for finding the route.

The router works in three layers, the network layer. It is used for the connection between the Internet public network and the intranet, and supports the WAN port protocol function.

The concept of packet rate for switches and routers.

The switch works at the Layer 2 data link layer, and there is also Layer 3 storage**, which is faster than the router.

The router works in three layers, the network layer. It is used for the connection between the Internet public network and the intranet, and supports the WAN port protocol function.

1.The packet rate of the switch.

The packet rate of the switch indicates the size of the packet capability of the switch. The unit is generally pps (packets per second), and the packet rate of the general switch ranges from tens of kpps to hundreds of mpps. Packet rate refers to the number of millions of packets per second (mpps) that the switch can have, that is, the number of packets that the switch can have at the same time.

The packet ratio is measured in packets, which reflects the switching capability of the switch. In fact, an important indicator that determines the packet rate is the backplane bandwidth of the switch, which indicates the total data exchange capacity of the switch. The higher the bandwidth of a switch's backplane, the stronger the ability to process data, that is, the higher the packet rate.

2.The packet rate of the router.

The packet rate of a router, also known as port throughput, refers to the packet capacity of a router on a port, and is usually measured in pps (packets per second). Generally speaking, the packet rate of low-end routers is only a few ks to tens of kpps, while high-end routers can reach tens of mpps (millions of packets per second) or even hundreds of mpps. If it is used in a small office, you can buy a low-end router with a low rate, and if it is a large and medium-sized enterprise department application, it is necessary to strictly enforce this indicator, and it is recommended that the higher the performance, the better.

To put it simply, the switch is mainly responsible for data exchange, and the main function of the router is data addressing and **.

A little more detail is:

In the local area network, there is generally a need for fast data exchange to reduce the latency of the network, after all, the data between the local area network is much larger than the data from the local area network to the Internet. Ordinary switches usually refer to Layer 2 switches, which do not have routing functions.

In the WAN, that is, the Internet, we usually use routers to address and ** data. The router has its powerful routing function, as well as a powerful data filtering function, we can do a lot of data traffic control rules, routing rules, etc. on the router to achieve a more secure and reliable connection to the LAN.

Although there are now three-layer switches, this kind of switch can provide routing functions, but the reason why it is still not possible to replace the router, the most important thing is that we usually require the LAN has a large amount of data traffic, and the use of switches can realize the data exchange function to a large extent, if the LAN spends a lot of time to process the ** addressing of data, this will lead to a great reduction in the performance of the LAN. However, at the network boundary, because the amount of data is much less than that of the local area network, it is more important to consider the data and the processing of all aspects of security, which is irreplaceable by the switch.

The switch now has an optical switch, which is very different from the router, an optical fiber is connected in, and the coaxial cable (ordinary network cable) comes out, and the router is connected to the network cable in and out of the network cable, which looks similar in function.

What is a switch and how is it different from a router? Take you to an in-depth look at both.