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
involved in the network port data transfer.For the above three parts, and not necessarily are independent of the chip, according to the combination of forms, can be divided into the following types:1.CPU Integrated Mac and PHY;2.CPU integrated mac,phy with independent chip;3.CPU non-integrated Mac with PHY,MAC and PHY with integrated chip;MPC8377 just belongs to the second kind, the board is ETSEC integrated +8e1111 PHY chip.is the network port structure diagram using scenario two. A dashed
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 interface requires a total of 16 signals.
Th
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 Mii
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 interface requires a total of 16 signals. Man
Recently, I tested the network stability of the server in terms of FTP and SCP. The network is always interrupted automatically, but the local connection is still running. The ping to the server is normal and some basic commands are used during this period, in order to easily record and expand knowledge, the recorded content is as follows:
1. ethtool
Ethtool is a command used to query and set Nic parameters in Linux.
Summary:
Ethtool ethx // query basic ethx network port settings
Ethtool-H //
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; asynchronous dual-port FIFO
Introduction
Traditional PC-centered Internet applications have now be
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
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-
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 Ethernet at the end of the last century, Gigabit Ethernet and even 10G Ethernet are continuously expanding their applicatio
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
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
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
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
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
First, Introduction Mii-tool is a tool for viewing the status of a network interface that manages media. Second, the option Usage:mii-tool [-VVRRWL] [-A Media,... |-F Media] [Interface ...] -V,--version display version information-V,--verbose MoreVerbose Output Note: Displays information about the network interface;-R,--Reset Reset mii to PowerOn State Note: Re-set
Due to the needs of the company's projects, we need to modify the original Mii based on the RMII model, for the HI3518C platform, my network card is LAN8701 need to modify the place has the following several:First of all, my uboot in env is:bootargs=mem=64m console=ttyama0,115200 root=/dev/mtdblock4 rootfstype=jffs2 mtdparts=hi_sfc:256k (boot) ro,128k (env ), 128k (config), 3072k (kernel), 11264k (ROOTFS)BOOTCMD=SF probe 0;SF Read 0x82000000 0x80000 0
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