beaglebone ethernet

The Ethernet MAC address uniquely identifies each Ethernet device in the world. This article describes how to obtain the MAC address and how to change the MAC address. Obtain the MAC address In the command input window of the switch, enter "show mac-address-table" to obtain the MAC address table, for example:Switch # show mac-address-tableMac Address Table-------------------------------------------Vlan Mac

SetRERPAs a large-scale ring Ethernet deployment technology, Ethernet network protection solves problems such as weak protection capability of traditional data networks and long fault recovery time, it is an important technical choice and solution for carrier man construction. 1. Requirement AnalysisThe operator's IP Man plays an increasingly important role in the whole business operation era. On the one ha

port location on the switch. Pairing Network cables in the LAN one by one.Finally, delete the files copied from the computer test and cancel the shared folder set on the computer in the LAN. Sort computer-related data, the port correspondence between the computer and the switch, and the "number tube" labeling records.In this way, you do not need to disconnect the LAN, check the computer connection status, and pair the network cable on the switch with a person, which is convenient and fast. Rela

Cisco device vlan, trunk, and Ethernet channel managementToday, we will introduce some common basic operations on cisco devices, such as creating VLANs, binding network cables, and using trunk and layer-3 switches. This is the topology of today: two three-layer switches, two PCs added with vlan10 and 20 respectively, and two three-layer switches with network redundancy. Finally, the communication between the two PCs is very simple, however, an experim

These days to complete a comparison of the Ethernet frame of the program (c), the teacher gave the Ethernet frame head and IP packet header structure, and the actual fetch to the packet format is the same.Data structure of Ethernet frame head:struct { char dest_mac[6]; Char src_mac[6]; Short Eth_type;} ethernet_header;The Eth_type fi

Encapsulate the communication as a class "The features of the program have advantages:Traditional wording when the bar code scanning head stop, abnormal power, network anomalies, communication terminal, the program can not resume the connection, the loss of data caused by failure, I write the program, whether the scan head power off or the production line restart, can be the first time to restart the connection and communication, stability is very good.This is also in a friend old program consta

Yan Hua technology recently launched the latest Ethernet Media switch product ADAM-6521S. A ADAM-6521S with a Single-Mode Optical Fiber port can be used as an industrial converter with a maximum transmission distance of 15 km. You can also use four industrial 10/100 Mbps Ethernet ports as a switch.Like other modules in the ADAM series, ADAM-6521S can be installed in three ways: DIN rail installation, wall m

The hardware components of the Ethernet Card are MAC/PHY/transformer/EEPROM. On our platform, Mac is generally integrated into the master. The PHY and the transformer are separated. (Because PHY simulates differential signals externally and integrates a large number of analog hardware, Mac is a typical full digital device. Chip area and analog/digital hybrid architecture are the reasons why Mac is first integrated into the microcontroller and PHY is l

I. Token Bus ARCNET is a local area network developed by datapoint in 1977. It is still widely used,And uses RG-62 coaxial cable as the NetWare LAN cabling system. ARCNET, which is exactly the same as ibm3270The cables connecting the terminal and the IBM host are the same, so this network is widely used in the Use base of a large number of IBM hosts.ARCNET can now use twisted pair wires and optical fiber cables. The new arcnet plus Speed has increased from 2.5 MB/STo 100 Mb/s (when using optical

Today, we introduce some common basic operations of Cisco devices, such as creating VLANs, binding network cables, doing trunks, using three-layer switching, and so on.This is today's topology diagram: Two three-layer switching, two PCs, respectively, add vlan10 and 20, two three layers to do network redundancy, and finally achieve two PC communication, very simple, but the use of an experiment:650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M00/74/4E/wKiom1YYvWzg69qyAACaxI7J60E493.jpg "s

In the use of computers, often due to network configuration errors caused by the inability to surf the internet, affecting work, learning and entertainment, this situation in fact, as long as the Ethernet can be re-enabled. For the Novice computer, it is necessary to master the skills of network configuration. Here is a brief introduction of how to deal with this problem quickly under the WINDOWS8 system. Processing method: 1, right click on the des

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 (for whisper interaction). Over time, we'll int

What are the advantages of a small pluggable (SFP) port for a Gigabit Ethernet switch? How do I connect the four SFP ports of a d-link DGS 1248 t smart switch? I think the main advantage of the SFP port is the flexibility to connect to the network. The SFP port is a hot-swappable input/output device that can be plugged into a Gigabit Ethernet port or slot to connect the port to the network. SFP ports can

TCL Network Equipment Co., Ltd. TCLS4109SFB, is a simple network management switch, is a team-level network equipment, on the basis of the mature chip scheme, specifically for the community users of broadband access to sudden high traffic, diversified natural environment conditions and other characteristics of the optimization design, so as to obtain small volume, Good sealing and wide operating temperature and humidity range provides simple and efficient building solutions for Community FTTB

Often see ppp,pppoe these nouns, at that time also looked at a lot of information, but has not quite understood what this is what, what to use, today calm down, read a bit more information, have some preliminary understanding, record down, later have a new understanding and revise.First, slip,ppp,ethernet are all link-layer protocols.Slip and PPP are point-to-point protocols, and the concept of MAC addresses is added to the

There are still many things worth learning about configuring routers. Here we mainly introduce Ethernet port configuration, X.25 configuration, and so on. Routers play an important role in computer networks and serve as a bridge between computer networks. It not only connects to different networks, but also selects data transmission paths and blocks illegal access. Configuring a router is not very easy for beginners. We will introduce general router c

Today's recommendation: cisco switch module Ethernet application details, familiar with the following cisco switch module knowledge point, you only need to spend a few minutes to understand the cisco switch Module Settings. There is also a diagram below, and other related information will be mentioned in this article. As an important cisco switch modular multi-layer switch, the Catalyst 6500 series provides secure fusion services for cabling rooms, co

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

An improper port connection between switches in the Ethernet may cause a network loop. If the related switch does not enable the STP function, this loop will lead to endless repeated 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 network was interrupted. Check the aggregation s

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