mii ethernet

Abstract: This article introduces the hardware implementation method of Ethernet MII Interface Based on FPGA and extended functions. The hardware structure consists of the control signal module, divider, asynchronous FIFO buffer, and 4b/5b encoding. Key words: M Ethernet MII; FPGA; Parity divider; 4b/5b codec; asynchro

as needed. Ifconfig in Linux is not suitable for setting these parameters, but it has a powerful tool to do everything. This is miI-tool and ethtool, which are not distinguished here, they implement similar functions.The full name of MII is media independent interface, which is literally a media-independent interface. Therefore, it is independent from a specific device. Think carefully about the standard i

Overview: Media independent interface (media-independent interface), or media-independent interface, is the Ethernet industry standard defined by the IEEE-802.3. It includes a data interface and a management interface between MAC and PHY. Data interfaces include two independent channels used for the transmitter and receiver respectively. Each channel has its own data, clock, and control signal. The MII data

MIIMedia independent interface (media-independent interface); or media-independent interface, which is the Ethernet industry standard defined by the IEEE-802.3. It includes a data interface and a management interface between MAC and PHY. Data interfaces include two independent channels used for the transmitter and receiver respectively. Each channel has its own data, clock, and control signal. The MII data

1. IntroductionMII (Media independent Interface) or media independent interface, it is the Ethernet industry standard defined by IEEE-802.3. It includes a data interface and a management interface between Mac and PHY. Media independence indicates that any type of PHY device can work correctly without the MAC hardware being redesigned or replaced. There are many types of Mii interfaces, commonly used are

do not know ...This article is reproduced from this article, but also combined with other blog content on the web.Ethernet (Ethernet) is a computer LAN networking technology, based on the IEEE 802.3 standard, which specifies the physical layer of wiring, electrical signals and media Access layer protocol content. Ethernet is the most common LAN technology in the current application. It largely replaces oth

used to manually set the network rate. Generally, a gigabit Nic supports 10 | 100 | 1000. The unit is Mbps. Usage:Ethtool-s eth0 speed 1000 duplex full autoneg off Effect:Set the physical port corresponding to the device number eth0 to 1000 Mbps, full duplex mode, and disable automatic negotiation. 2. miI-Tool MII-tool (this command specifically sets the NIC working mode in Linux) The fu

Ethernet is a computer LAN networking technology based on the IEEE 802.3 standard. It specifies the contents of the physical layer connections, electrical signals, and media access layer protocols. Ethernet is currently the most widely used LAN technology. It largely replaces other LAN standards, such as the licensing ring, FDDI, and ARCNET. After the rapid development of M

Mac and PHY process the least two layers of OSI Layer-7 network structure. (1) PHY is responsible for electrical signal conversion, line status, data hard coding, etc.When sending data, phy receives data from MAC (for phy, there is no frame concept, and for it, it is data regardless of the address, data or CRC ), increase every 4 bits1-bit check error code, convert parallel data into serial stream data, and then according to the physical layer encoding rules (10based-t NRZ encoding or 100based-

Now to use MPC8313 out of a product, MPC8313 Development Board with the PHY is a 1G PHY switch and a 1G PHY network card, natural system configuration is configured in this way, now needs only to support 100M on the line, so ready to use 175c this PHY , support a WAN port and 4 LAN, through two Mii port connection 8313, 1G PHY to 100M PHY, as long as it is modified in the initialization of Mii mouth, the

MII-tool usage: [Root @ localhost ~] # MiI-tool-helpUsage: MII-tool [-vvrrwl] [-a media,... |-F media] [interface...]-V,-version display version information-V,-verbose more verbose output Note: displays network interface information;-R,-Reset reset MII to poweron state Note: reset

driver and the operating system. In Microsoft's system, you can view the ARP table with the ARP-A command. It is also the same when the data frame is received, after the CRC is done, If there is no CRC validation error, remove the frame head, take the packet out through the standard excuses passed to the driver and the upper level of the Protocol Inn, and finally the right to reach our application.There are also control frames, such as flow-control frames, that require the Mac to recognize and

ARP table, and is completed by the driver and the operating system. In Microsoft's system, you can view the ARP table with the ARP-A command. It is also the same when the data frame is received, after the CRC is done, If there is no CRC validation error, remove the frame head, take the packet out through the standard excuses passed to the driver and the upper level of the Protocol Inn, and finally the right to reach our application.There are also control frames, such as flow-control frames, tha

#!/bin/bashneteth0= '/sbin/mii-tool Eth0|awk ' {print $} 'neteth1= '/sbin/mii-tool Eth1|awk ' {print $} 'if [[$neteth 0 = = "OK"] | | [$neteth 1 = = "OK"]; Thenecho "Network is OK" >>/var/log/ha-net.logecho "Network Good"else [[$neteth 0! = "OK"]] [[$neteth 1! = "OK]]echo "Network is down!" >>/var/log/ha-net.logFiSleep 5Note: In a scheduled task, Mii-tool need t

Under Windows, the view is very simple, double-click the Control Panel-> Network connection-> Local connection (or other connections you are using) to see the speed of the network. Of course, this speed is not necessarily the actual speed of the network, but only to express your computer access to the switch rate. Usually in the school's local area network, or the community broadband, or ADSL, see the speed should be 100M, which shows that the current machine network card is working in 100M mode

Source: http://xukaizijian.blog.163.com/blog/static/1704331192011662137528/ mii-tool:linux the command to set the network card working mode specificallyMii-tool--helpUsage:mii-tool [-VVRRWL] [-A Media,... |-F media] [interface ...]-V,--version display version information displays versioning information-V,--verbose more verbose output Display network interface information;-R,--reset reset MII t

The heat, but the mood of the SP (Telecom value-added service provider) is increasingly cold. "This patrol is unusual. "An SP in charge told reporters that since August 16, the Ministry of Information industry to the SP industry, another round of regulation will be kicked off." The people familiar with the matter told reporters that from August 16 to 24th, Mii Telecommunications Authority and the provincial Communications Authority will lead the f

Mii-tool (this is a command specifically used to set the NIC working mode in linux)-Linux Enterprise Application-Linux server application information. For details, see the following. 1. view the NIC working mode and enter the following command: # Mii-tool-v Eth0: negotiated 100basetx-fd, link OK Product info: vendor 00: aa: 00, model 56 rev 0 Basic mode: autonegotiation enabled Basic status: autonego

Enter Mii-tool to see if the network cable is connected to the network card#mii-tool eth0:negotiated 100basetx-fd, link ok Sometimes the driver may not support an error with the following errors#mii-tool Siocgmiiphy on ' eth0 ' failed:operation not supported No MII interfaces found You c

################################################################View the physical information of the Linux network card by command, status:[Email protected] ~]# Mii-tool eth0eth0:negotiated 100basetx-fd, link ok-V Displays the version information;-V displays information about the network interface;-R resets Mii to on State;-R restarts auto-negotiation mode;-W View the status change of the network interface