switched ethernet vs dedicated ethernet

is used to describe the third-layer device of the data network, it also refers to a routing device. We often mention that an Ethernet switch is actually a multi-port L2 network device based on the bridge technology, it provides low-latency and Low-overhead channels for data frame forwarding from one port to another. It can be seen that the core of the switch should have an exchange matrix to provide a channel for communication between any two ports,

loops. Of course, this requires the switch to support the Spanning Tree.However, the Spanning Tree redundant connection works in the Stand By state, that is, except for one link, the other links are actually in the standby Stand By state, which obviously affects the transmission efficiency. Some of the latest technologies, such as FECFast Ethernet Channel), ALBAdvanced Load Balancing) and Port Trunking technology, allow each redundant connection link

ports, the price of the central memory will be very high, so the switch kernel becomes the bottleneck of performance implementation; the second is the cross-bus structure, it can establish direct point-to-point connections between ports, which is good for single-point transmission performance, but not suitable for multi-point transmission; The third is the hybrid cross-bus structure. This is a hybrid cross-bus implementation method. Its design idea is to divide the integrated cross-Bus Matrix i

central memory will be very high, so the switch kernel becomes the bottleneck of performance implementation; the other is the crossover bus structure, which can establish direct point-to-point connection between ports, which is good for single point transmission, but not suitable for multicast transmission; Three is a hybrid crossover bus structure, which is a hybrid crossover bus implementation, its design idea is to divide the whole crossover bus matrix into a small cross matrix, in the midd

When the number of ports that a single switch can provide is insufficient to meet the requirements of the network computer, more than two switches must provide the corresponding number of ports, which also involves the connection between switches. Basically, there are two ways to connect vswitches: Stack and cascade. 1. GBIC and SFP 1) GBIC Cisco GBICGigaStack Gigabit Interface Converter) is a common and low-cost Gigabit Ethernet stack module that pro

In a LAN, a switch is a very important network device that is responsible for quickly forwarding data frames between hosts. The difference between a switch and a hub is that the switch works at the data link layer and can be forwarded based on the MAC address in the data frame. This chapter introduces the difference between shared Ethernet and switched Ethernet,

Introduction With the gradual improvement of Ethernet stability, anti-interference and bandwidth problems, Ethernet is entering the industrial control field on a large scale. It is used in industrial process control, communication, spacecraft and navigation systems, and has extremely high requirements on the high speed of reliability and fault response. Currently, redundancy design has been widely used as

The principle of automatic Ethernet negotiation and related network test automatic negotiation are one of the most controversial concepts in Ethernet. Is it good or bad? This depends on the situation. When you use automatic negotiation, the supply, driver version, and administrator selection are all considerations. Www.2cto.comWhat is automatic negotiation? Article 802.3 of the 28th standard defines the aut

TCP/IPA protocol is a complex set of protocols. There are many professional books. Here, I will only introduce the layer structure of TCP/IP protocol and its message format that are closely related to programming. We know that TCP/IP uses a layered structure. The hierarchical model and Protocol are as follows: Application Layer(Application) HTTP, telnet, FTP, SMTP, SNMP Transmission Layer(Transport) TCP and UDP Inter-network layer(Internet) IP Address [ARP, R

individual business or even special tunnel transmission. In fact, all of these feature switches are not supported and are not supported by upgrades, while routers are basically supported. 　　(4) Comprehensive cost Some projects link using 10/100MB bare fiber to achieve vertical link, using switch networking. This reduces the cost of network equipment procurement, but the link cost than the ordinary 2MB line is too high, even if the operators because of promotions at a lower price, but the futu

Web3 Javascriptðappapi In order for your application to work on the etheric square, you can use the objects provided by the Web3.js library WEB3. At the bottom, it communicates with the local node through RPC calls. The web3.js works with any of the etheric square nodes that expose RPC layers. WEB3 contains ETH objects-Web3.eth (dedicated to the Ethernet block chain interaction) and Shh objects-web3.shh (f

Reprint please indicate the source of the article as a link, micropythonqq Exchange Group: 157816561, public number: Micropython playerhas always been about the temperature and humidity of the detection is uninterrupted, this time we continue to detect temperature and humidity, the same or use DHT11 to detect. But this time detected temperature and humidity does not show, also do not alarm, this time to the detected data through the Ethernet upload to

specified signals are used to send information about device capabilities. the auto-Negotiation Protocol contains rules for device configuration based on this information. this is how a hub and the device attached to that hub can be automatically negotiate and configureThemselves to use the highest performance mode of operation. The auto-negotiation feature is optional, and therefore the auto-negotiation protocol is designed to work with 100base-t interfaces that do not support fast link pulses

Preface This is a teaching article, mainly for understanding the Ethernet square and block chain technology used. It was a technical curiosity to write this article. Block-chain technology began to use virtual currency, in which Ben Cong started the bitcoin block chain in January 2009. Bitcoin was born, through several rising prices let block chain technology is famous. Block chain is a new application mode of computer technology such as distributed

If the server has 4 Gigabit Ethernet cards, how would you choose to design a virtual network of VMware platforms? First, let's look at this virtual network design diagram Production business network requires the use of independent network segment resources, design is very fixed, it is not discussed (production, vmotion and management networks can be isolated via VLANs (two tiers), or through routing isolation (layer three) Vmotion and management