aui ethernet

In this section to learn about the physical layer of Ethernet, the IEEE802.3 standard gives the physical layer structure of the Ethernet, as indicated in the red box shown.We can see that physics can be broadly divided into: gmii media independent interface, PCS physical coding sub-layer, PMA Physical media connection layer, PMD physical media related layer, MDI interface, Medium physical medium.From the bo

Ethernet Channel protocol is a link aggregation protocol developed by Cisco, which can bind multiple physical Ethernet links into a logical link, which can increase transmission bandwidth and improve link redundancy through multiple port bindings. Currently VNX supports the Ethernet channel protocol, where all ports are connected to the switch using the same IP a

Soldier Ethernet Tester is a test instrument based on PC Card. So how does a soldier Ethernet tester work? The main interface of the software is as follows: OK, let's take a look at each function point of the software together. A new or edited message In the list box on the right side of the software main interface, click the right button, according to the menu prompts, you can make a new me

Translated from: http://ricardo-dias.com/2010/11/20/arduino-wakes-my-pc/I've always dreamed of controlling something in my room through the Internet. Watch IPTV on the computer, turn on/off the lights, remote control peer download ... To do this, I need a server – my old desktop can do it. Of course, I didn't mean to hang it all day/week/month ... ^^I need to find a way to revive it whenever I want to. So I think I can use an Arduino and Ethernet boar

--Transmission Protocol/Network Protocol) is an industrial standard protocol set, including IP, TCP, UDP and other protocols to ensure the correct transmission of data on the network. TCP/IP protocol is the foundation of modern Internet. The TCP/IP protocol is a four-layer model: Application layer, Transport layer, network layer and data link layer. Each layer has a different function, and the layers and layers are logically independent of each other. Each layer corresponds to a number of sub

Because the single interface between Ethernet devices only provides one network segment, the transmission interface must be set as the receiving interface for OSPF, which prevents OSPF from sending a hello packet to the transmission interface. The two devices can reach each other through the hello packets sent to the receiving interface. To configure the OSPF ticket Ethernet interface, run the following co

Fluke Networks (Fluke Network) has launched an ethernet cable tester "DTX-1800", in addition to the widely used "5e" line, it can also be used to detect "6" and "7" lines with better transmission characteristics. You can check whether the cables used as the measurement object meet the corresponding specifications. The testing frequency is up to 900 MHz. Reduce the testing time of the "6" line to 12 seconds, less than 4300 of the latter, compared to ab

Yesterday accidentally deleted the Xamarin development environment of virtual device network equipment. The name is: vEthernet (internal Ethernet Port Windows Phone Emulator). The code that causes the original to run correctly cannot be edited, prompting for 12 errors, and it is not possible to navigate to a specific error. The relevant method cannot be found in the data. Later, when looking at the error, there was a cryptographic algorithm called FIP

Linked from http://www.2beanet.com/ How to drive attansic L2 100/100 Fast Ethernet under fc7 Summary: For personal use, I DIY a personal computer, the main board is from ASUS, integrated with attansic L2 10/200 fast Ethernet, the seller provided with the device drive for Windows series, but I want to install it with Linux which is fedore core 7, what a pity, the network card has not been supported be defau

The smart home gateway and peripheral single-chip microcomputer communication data prepared for the Guangdong Electronic Design Competition need to use TCP/IP communication, so the enc28j60 module is used. In embedded systems, Ethernet controllers are usually one of the hot topics of research. The enc28j60 of microchip has a high application value in embedded systems. The chip integrates Mac controller and PHY and uses the SPI interface, the

chain of information such as the transaction issued by the account, the transaction recipient account and the transaction hash code these three information to save. The chain is then not traversed from the entire etheric square, but is read from the local storage that holds the information and is traversed.This can save a lot of unnecessary time overhead, but it goes against the purpose of using the etheric square-to avoid the immutable nature of the information on the chain. Because the inform

Combined application of Ethernet minimum frame length and TCP/IP @ (computer network) Running the TCP/IP protocol on a fast Ethernet with an average round trip delay of RTT = 20ms, assuming TCP has a maximum window size of 64KB, ask at this time the maximum data transfer rate that the TCP protocol can support is approximately (C)A. 3.2mbit/sB. 12.8 Mbit/sC. 25.6mbit/sD. 51.2mbit/s Analysis: The problem o

With the development of the exchange industry in China, we have also promoted the update and upgrade of the exchange technology. Here we have analyzed the problem that Ethernet switches are slowing down for no reason. When the network scale is relatively large, the ethernet switch that handles network data forwarding, content filtering, and management control tasks will be overloaded. In addition, like a pe

SummaryThis paper analyzes the existing Ethernet link layer topology discovery algorithms, proposes improved algorithms, and provides the basic implementation methods of the algorithms. The new algorithm relaxed the conditions in the original algorithm, making the algorithm more widely used and adaptable. The new algorithm can discover devices that cannot be found by the original algorithm in the network. KeywordsLink Layer topology SNMP 1 Intr

Basic protocols running on Ethernet 1. Introduction A network listening tool was compiled some time ago. To analyze captured data packets, you must be familiar with various network protocols. I am suffering from the fact that there are few articles on the Internet that focus on this aspect, and most of the books are not carefully explained. A small number of books devoted to network protocols are too large to meet our requirements. Therefore, we will

In the past, on-site cabling was very simple. The sensor can be either power-supply or passive. The power supply type requires 2, 3, or 4 cables, and the passive type requires only 2 cables. At the same time, the sensors are both analog-type and support 12, 24, 36, 48VDC, or 110, 220VAC voltages. The field controller provides power for each sensor, and each sensor is connected to its related controller. Because the controllers are both analog-type, factory wiring is constantly increasing. When a

An Ethernet switch comes with a serial cable for switch management. First, insert one end of the serial port cable into the serial port on the back of the switch. remote management cannot be implemented. So which method you use depends on your security and manageability requirements. Currently, many household switches have reached 100 Mbps, which can meet the needs of most users. Currently, switches have quickly replaced hubs and become the preferred

An improper port connection between Ethernet switches in Ethernet may cause a network loop. If the related switch does not enable the STP function, such a loop will lead to endless data packet forwarding, forming a broadcast storm, this causes network faults. One day, we found a problem with a VLAN in the campus network performance monitoring platform-the connection between the access switch and the campus

Vro functions are more powerful than vswitches, but the speed is relatively slow and expensive. The ethernet switch has both the ability to forward packets at the wire speed and the good control function of the vro, therefore, it has been widely used by many enterprises. "Switch" is the most frequently used word on the network today. It can be applied on any occasions from the bridge to the ATM to the telephone system, so you cannot figure out what is