beaglebone ethernet

Ethernet switch technology development trend in recent years, with the rapid development of enterprise data communication services and related fusion services, Ethernet switches, as an indispensable key equipment, have not only greatly increased the number, in addition, it is constantly improved in terms of quality and performance. Enterprise information applications are moving towards broadband and converg

different port that is forwarded to that port and terminated on that port. Up MEP and down MEP also have other names in different places, such as outgoing and inward MEP: is up MEP, sending a paper to relay entity, also called an introverted MEP. Is the down MEP, which sends the PDU to the network direction--------------------------------------------------------------------------------------------------------------- -------Ethernet (

Ethernet switches are still commonly used. So I have studied the concept and principle of the data network Ethernet switch. I will share it with you here, hoping it will be useful to you. Switching) refers to the technology collectively used to send the information to be transmitted to the corresponding route that meets the requirements according to the needs of transmitting information at both ends of the

CCNA Study Notes 2 --- EthernetEthernet ◆ type: 1, EthernetII; 2, 100 standard Ethernet (10 Mbps) Fast Ethernet (1000 Mbps 10 Gbps 40 Gbps, using CSMA/CD access control, all are in line with 802.3 ◆ L2 network Classification 1, point-to-point: WAN network serial port 2, multi-point} ---- Ethernet broadcast} ---- Frame Relay does not support broadcast ◆ collision

Q: How to implement a single chipEthernetMicrocontroller?A: The trick is to connect the microcontroller and Ethernet Media to the Controller (MacAnd physical interface transceiver (Phy) Integrated into the same chip, which can remove many external components. This solution enables good matching between MAC and PHY, and reduces the number of pins and chip area. The Single-Chip Ethernet microcontroller also r

Unlike office and home Ethernet, which has long been well known, industrial Ethernet requires more professional knowledge and practical experience. If you are installing or using an industrial Ethernet, you must understand the Five Points of cabling, signal quality, grounding circuit, switch, and communication. Wiring problems Like all networks, the advantages an

Ethernet switches are still commonly used. So I studied whether SPOH technology has triggered the Ethernet switch revolution. I would like to share it with you here, hoping it will be useful to you. The rapidly expanding "Network Society" poses severe challenges to Ethernet switches serving as data processing centers. First, in the face of overload data transmiss

Vamei Source: Http://www.cnblogs.com/vamei Welcome reprint, Please also keep this statement. Thank you!"The trumpet starts to broadcast", if you know this, you must be the older generation. "Little Horn" is a radio program for children from the 50 's to the 80 's. At the beginning of the program, there will be a kind of broadcast: "Children, small speakers began to broadcast!" "Hearing here, the children in front of the radio get excited and ready to listen to the program: This issue is the

Three-dimensional out of the new At present, more and more manufacturers to enter the Ethernet market, new brands and new products continue to emerge, it seems that there has been a trend of homogenization of competition. However, it is worth mentioning that the Ethernet switch in the market number of expansion, while the quality requirements are also constantly improving. Just to meet the simple connectio

The main network elements in the Ethernet network include switches, routers, firewalls, servers, and clients. By testing the Ethernet network elements and the network itself, the network structure can be optimized, the network fault is eliminated and the network performance is mastered. Ethernet testing is also rule-based, such as the well-known rfc2544/rfc1242,

These things will not be confused, because they are not a level of East, now think about the early I feel some do not understand because the agreement is in the abstraction layer is not clear, the knowledge should be from the bottom solid walk.First, the agreement is not big, the agreement is the two sides agreed to abide by the norms, only that. The data transmission between the Internet is on the Ethernet, and it needs to do some processing before i

Generally, the Integrated Wiring System is updated every seven years. It takes five years to replace the three-category system with the Five-category system. It takes only three years, cat6 systems are mature and increasingly widely used. It is a trend to implement Gigabit Ethernet in cat6 systems, and standards for cat6 systems are being formulated and initially implemented, bringing copper cabling systems to the fullest is the latest goal of 10 Giga

Because of the actual use of the requirements we test the network communication, on the NUCLEO-F412ZG Test board does not have an Ethernet section, we choose to add a W5500 experimental board. W5500 supports SPI interface communication, dc3.3v feed. And the NUCLEO-F412ZG Test board has SPI1 each pin Spi1_nss (cn7_17), Spi1_sck (cn7_10), Spi1_miso (Cn7_12), Spi1_mosi (cn7_14) to the CN7, The 3.3VDC and GND also guide the CN8, which can be easily implem

1. Introduction The IEEE 802.3z Gigabit Ethernet Standard, adopted in June 1998, describes 3 physical layer interfaces (1000BASE-SX, 1000BASE-LX, and 1000BASE-CX) that are used for a universal link encoding and can be 1000mb/s transmitted. 1000BASE-SX, 1000BASE-LX interface using optical fiber as a medium, the farthest transmission distance of up to 5000 meters, so can be used in buildings or campus backbone network. The 1000BASE-CX interface is plan

Ethernet technology has entered the 10G era. Ethernet is no longer just a LAN technology, but a Layer 2 bearer technology from desktop to core, from enterprises to telecom operators, from LAN to Internet backbone. As a result, the 10-ge Ethernet switch, as the core of the network, is facing unprecedented challenges. In the past, all the Internet routes, ACLs, sFl