LAN switches are quite common. So I studied the main structure and technology of LAN switches and shared them here. I hope they will be useful to you. The superior performance of LAN switches comes from its unique internal technical structure. Different switching modes or different
layer-3 switching solution is a solution that supports dynamic integration at all levels of classification. Although such multi-layer dynamic integration can also be completed by a traditional router and a layer-2 switch, however, compared with the third-tier switch, this scheme requires more device configurations, larger space, more wiring, and higher costs, in addition, the data transmission performance is much worse, because in massive data transmission, the routers in the solution cannot ov
brewing in the process of changes, as shown in the following aspects.
Low-end switch: required control function
The peak of broadband network construction was once high, but it soon revealed that due to the imperfect existing technologies and equipment functions, the bandwidth network profit model was single and could not meet the needs of users at multiple levels and the price bearing capacity. To improve the profitability of a broadband network, the operation and management of the network are
activity. Note that the connected port and open port State not only mean that the cable is connected, but also indicate that the physical layer and the MAC layer are active.
1. None connected
2. None of the active (connected and open)
3 activity 0%
4 activity 50%
5 activity 100%
4. Frame/packet size
This is critical. Historically, two-layer and three-layer switches are tested through a series of frames/data packets of
switch, however, compared with the third-tier switch, this scheme requires more device configurations, larger space, more wiring, and higher costs, in addition, the data transmission performance is much worse, because in massive data transmission, the routers in the solution cannot overcome the transmission rate bottleneck.
Ii. Advantages of layer-3 switches
When talking with some friends, I often hear something similar to "Will a layer-3 Switch rep
Routers
Layer 2 exchange technology works at the data link layer. It forwards the MAC address of the received packet to the corresponding port in the internal address table, and records the MAC address and corresponding port of the packet in the internal address table, if the MAC address is not in the table, broadcast and wait for a response. Therefore, L2 switches have the MAC address learning function, which is transparent to the network layer or h
improving performance, this investment is worthwhile.
After deploying smart switches, all the network congestion problems that previously plagued the system have been solved?
Although smart switches can classify traffic at the edge of the network to give different priority levels and limit broadcast traffic, smart switches
Asymmetric switches are still commonly used, so I have studied how to use asymmetric switches to improve network performance. Here I will share with you, hoping to help you. Vswitches can be divided into two types based on the speed of each port of a vswitch. Symmetric switches and non-symmetric switches. Symmetric
investment is worthwhile.
After deploying smart switches, all the network congestion problems that previously plagued the system have been solved?
Although smart switches can classify traffic at the edge of the network to give different priority levels and limit broadcast traffic, smart switches are not a cure for all
performance, this investment is worthwhile.
After deploying smart switches, all the network congestion problems that previously plagued the system have been solved?
Although smart switches can classify traffic at the edge of the network to give different priority levels and limit broadcast traffic, smart switches are
Asymmetric switches are worth learning a lot. Here we mainly introduce how asymmetric switches improve network performance. According to the speed of each port of a switch, there are two types of switches. Symmetric switches and non-symmetric switches. Symmetric
-exchange matrix interconnection. Technically, a vswitch attaches each port to a backplane bus with a high bandwidth (at least one order of magnitude higher than the port bandwidth) and connects it to a vswitch, the encapsulated data packet that is lost from the port enters the switch through the backplane bus. You can use both forward-through and store-and-forward methods to exchange data.
In addition, vswitches are more cost-effective. In the past, the high price of domestic
different manufacturers use different ASIC, the product performance is directly affected. The above three points are also the main technical parameters used to judge the performance of Layer 2 and Layer 3 switches. Please pay attention to the comparison when considering device selection. Www.2cto.com (2) routing technology the router works on the layer 3 of the
Bridge (brouter) has the function of Network bridge and router.
5. In the network layer above the relay system, that is, gateways (Gateway).
When a relay system is a forwarder, it is generally not called a network interconnect, because it is simply a network extension, and this is still a network. High-level gateways are less used because they are more complex. Therefore, the general discussion of network interconnection refers to the use of switches
Bridge (brouter) has the function of Network bridge and router.
5. In the network layer above the relay system, that is, gateways (Gateway).
When a relay system is a forwarder, it is generally not called a network interconnect, because it is simply a network extension, and this is still a network. High-level gateways are less used because they are more complex. Therefore, the general discussion of network interconnection refers to the use of switches
are basically finalized. GE switches will develop in applications, and the cost will be further reduced to meet the needs of more and more users.
The development of technical products generally goes through a similar process: technological development, cost reduction, diversified products, and increasing application fields-reaching the peak stage. The current location of the Gigabit Switch is the peak, and it will take a long time to reach its peak.
Although smart switches can process different types of traffic, they can also limit the broadcast traffic. But objectively speaking, with the current technology, smart switches cannot meet the needs of all users. When smart switches gradually move towards the edge of the network, they are always faced with various ques
communication between soft switches, multiple operators, and different networks to implement traffic control and scheduling across the network; shared centralized database retrieval services across the network, shared business creation environment, and network management across the network.The core network of the Next Generation Network provides networking methods, routing policies, traffic control, networ
support for stream classification and QoS protection are also an important feature of backbone switches. The number of users connected to backbone switches is large, and the network requirements of users are also complicated. Therefore, the backbone switch should be able to provide QoS and Filter Based on stream classification for different users and
On seeing this topic, perhaps readers are dismissive: What are the networking options for the switch? It's all about connecting it to the user's computer. Of course, that is for switches in the entire network location, some high-level switches such as three-tier exchange, network management-type products, in the networking structure is not so simple.
Learn about the fresh features of the switch
Three-tier
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