aui ethernet

After receiving the previous blog post, we continue to parse network data packets and parse the three protocols that are hosted on the Ethernet. This mainly involves first parsing the header data according to the RFC-defined standards and then obtaining the payload, that is, the entity data contained in the Protocol is further processed by the upper layer.I. ARP Protocol As an important protocol for ing between lan ip addresses and MAC addresses, this

Now many enterprises have installed Linux and may encounter installation and configuration problems of the Linux Ethernet card. Here we will introduce the installation and configuration of the Linux Ethernet Card, the following uses the Crystal CS8920 ethernet card produced by Cirrus as an example to describe the installation and configuration process. In this ex

Ethernet card settings for the Solaris 10 Operating System (1)-Driver Installation Preface: The setting of the Ethernet Card (NIC) in the Solaris operating system is a common topic. There are countless materials available on the Internet. But for friends who have just been familiar with Solaris, what is most needed is a concise and easy-to-read guide. In view of this, this article will sort out and summari

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

Ethernet LAN with broadcast channel (down)--------- frame format (MAC)L Hardware address (Mac address ) of the MAC layerIn a local area network, the hardware address is also called the physical address, or the MAC address. ( address of the location)The "address" as stated by the 802 standard should be strictly the "name" or identifier of each station. In fact, our textbook address is not very accurate, but we are accustomed to this type of "name" is

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

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Data Link layer for EthernetAt the data-link layer, Ethernet is responsible for Ethernet addressing, which is often referred to as hardware addressing or MAC addressing. Ethernet is also responsible for encapsulating packets from the network layer into frames.Ethernet AddressingEthernet addressing uses the MAC (media access control) address that is cured in each

The Ethernet channel (ethernetchannel) increases the link bandwidth by bundling multiple Ethernet links, and runs a mechanism to bundle multiple Ethernet ports into a single logical link. The Ethernet channel can be bundled with up to 8 physical links, where the physical link can be twisted or fiber connected.

============ Problem Description ============Title, under the Ethernet I can only obtain the IP address, who knows the subnet mask, default gateway, DNS if get AH? Note Under Ethernet connection Oh, not wifi!.============ Solution 1============Android Execute Linux command try to visually do not need root permission============ Solution 2============Ethernetdevinfo methinfo = Methmanager.getsavedethconfig (

An Ethernet switch is a network device that can encapsulate and forward data packets based on MAC address recognition. The switch can "Learn" the MAC address and store it in the internal address table. By creating a temporary exchange path between the initiator of the data frame and the Target receiver, the data frame can directly reach the destination address from the source address. 1. The switch establishes a ing between the address and the switch

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