ethernet crimper

The Ethernet port of a vswitch has three link types: 1. Access user mode; 2. Trunk link Trunk mode; 3. Hybrid is similar to Trunk but more advanced than trunk; (1) Access Port: Only the Ethernet frame of the default vlan is allowed, that is, only one vlan can belong to. The Access port is tagged with a vlan after the Ethernet frame is received, and the vlan label

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

Network Testing helps the development of Ethernet technology to mature, and more detailed tests will also help those who still have doubts about Ethernet technology to build confidence. Ethernet is evolving from 10 m to 10G, and various technical updates are constantly carried out. Of course, Ethernet's most important device-switch is changing with each passing d

Android Ethernet 1 from top to bottomRecently, many framework problems have been encountered, such as network port disconnection after startup. The network display icons in the status bar and settings are not updated, and the dual network port needs to be removed, this article describes the top-to-bottom framework structure of Ethernet. Due to limited capabilities and time, the analysis in this article is n

The air on the weekend was sultry, and the thought of it would never rain again. Every weekend, I will sum up all the things of the week, whether at work, in life, or on the way to and from work, or after reading, because it is no longer raining, I decided to have a good sleep on Saturday evening. When I explained the principles of vswitches and hubs to my colleagues, I thought that hub is a more efficient choice, what is the difference between iptables's simple cluster target and F5's high Serv

In Solaris, how to configure FCHBA to an Ethernet card, IPFC, can easily set an FCHBA card to an Ethernet card, which is of great significance in reality. In some work sites, if you need to copy a large amount of data through the network, it is often found that the speed of the Gigabit Nic is not enough ,... in Solaris, how to configure the fc hba to an Ethernet

This article describes the use of Pf_packet and Sock_raw to send themselves a defined type Ethernet packet, using the Wireshare capture packet to get to the packet and pave the line for adding a network protocol to the Linux kernel.First on the code:#include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define Eth_p_dean 0x8874//self-defined