ethernet nid

At present, most commonly used Ethernet Media are cables, supplemented by optical cables. Generally, 10 BASE-T Ethernet requires only three types of links. 100Base-T Ethernet requires five types of links to ensure its operation. In addition, a considerable number of five types of links can support BASE-TX applications, the cat5e chain can stably support 1000Base-

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

In September 1997, the ISO/IEC JTC1 SC25 WG3 Standards Committee decided to develop two new types of cables for the next version of ISO 11801, the two new types of cables are divided into six categories/Class E and seven categories/Class F according to their performance. The decision aroused great interest in the cabling industry and some standards committees (especially the American organization TIA/EIA and the European CENELEC.In addition to the work carried out by the Cabling Standards Board,

Rack-mounted switch, fixed configuration with/without expansion slot) rack-mounted switch is a slot type switch, which has good scalability and supports different network types, such as Ethernet, fast Ethernet, Gigabit Ethernet, ATM, licensing ring, and FDDI, but the price is relatively high. A fixed-configuration vswitch with expansion slot is a type of switch w

Rack-mounted switch, fixed configuration with/without expansion slot) rack-mounted switch is a slot type switch, which has good scalability and supports different network types, such as Ethernet, fast Ethernet, Gigabit Ethernet, ATM, licensing ring, and FDDI, but the price is relatively high. A fixed-configuration vswitch with expansion slot is a type of switch w

connected to the DDR2 bank and its IO supply voltage should be 1.8V As mentioned above, the DDR2 IO level flavor 1.8V, so the FPGA corresponding to the bank's IO supply voltage page should be 1.8v,ac6102, DDR2 and FPGA BANK3 and BANK4 connection, so the FPGA chip corresponding IO The Bank power supply is set to 1.8V, as shown in: Through this section, we understand the FPGA connection DDR2 chip circuit principle and considerations, we can according to their own needs, combined with th

inserted ... Insert.... InsertFirst of all, take a look at Ethernet, the largest courier company:Ethernet Although as the largest express company, below also has several small branchEthernetⅱ, Netware, 802.3 SAP, 802.3 LLC SNAP, as a branch office, we carry out the courier standards should not be changed, the approximate process is like this650) this.width=650; "src=" Http://s5.51cto.com/wyfs02/M01/7A/57/wKiom1aoIZmTg-sOAAEpE5DZpxw275.jpg "title=" Qq

calculation. For Gigabit Ethernet, the calculation is as follows: 1,000,000,000bps/8bit/(64+8+12) Byte=1,488,095pps Description: When the Ethernet frame is 64byte, it is necessary to consider the fixed overhead of the 8byte frame head and the 12byte frame gap. Therefore, a wire-speed Gigabit Ethernet port in the forwarding 64byte packet packet forwarding rate is

Layer-3 Ethernet switches are quite common, so I have studied the problems related to the CPU packet sending and receiving of layer-3 Ethernet switches. I would like to share them with you here, hoping they will be useful to you. Layer-3 Ethernet switches are developing rapidly. On the one hand, bandwidth and switching capacity of network devices are greatly incr

table lists the common values in the ethertype field and their corresponding protocols: Ethertype (hexadecimal) Protocol 0x0000-0x05dc IEEE 802.3 Length 0x0101-0x01ff Lab Zero X 0600 Xerox NS IDP 0x0660 0x0661 Dlog Zero X 0800 Internet Protocol (IP) Zero X 0801 X.75 Internet Zero X 0802 NBS Internet Zero X 0803 ECMA Internet Zero X 0

Note the following when setting the duplex mode and speed of an Ethernet Port: Considerations for setting port duplex mode Considerations for setting port Type Duplex status The Mbps Ethernet electrical port can work in full, half, or auto mode and can be set as needed; The Gigabit Ethernet electrical port can work in full, half, or auto mode. However, when the s

SummaryThis article introduces the principle and basic implementation process of VoIP, and analyzes the composition of audio latency in the Ethernet environment. The experimental results show that the audio latency in the Ethernet environment is mainly composed of the buffer latency and API call latency, and the most important part is the API call latency. This paper proposes a method to reduce API call lat

Ethernet is a local area network technology developed in the the 1980s, because of its easy to use, low price and high speed, it soon became the mainstream of LAN. With the advent of Gigabit Ethernet (GbE) and the emergence of Gigabit Ethernet (10GbE), as well as the low cost of direct architecture of GbE and 10GbE technology in optical fiber,

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