MII meaning in Networking ?

Answer: What is Media Independent Interface mean?

The media-independent interface (MII) was originally defined as a standard interface to connect a Fast Ethernet (i.e., 100 Mbit/s) media access control (MAC) block to a PHY chip. The MII is standardized by IEEE 802.3u and connects different types of PHYs to MACs. Being media independent means that different types of PHY devices for connecting to different media (i.e. twisted pair, fiber optic, etc.) can be used without redesigning or replacing the MAC hardware. Thus any MAC may be used with any PHY, independent of the network signal transmission media.

The MII can be used to connect a MAC to an external PHY using a pluggable connector, or directly to a PHY chip on the same PCB. On a PC the CNR connector Type B carries MII signals.

Network data on the interface is framed using the IEEE Ethernet standard. As such it consists of a preamble, start frame delimiter, Ethernet headers, protocol-specific data and a cyclic redundancy check (CRC). The original MII transfers network data using 4-bit nibbles in each direction (4 transmit data bits, 4 receive data bits). The data is clocked at 25 MHz to achieve 100 Mbit/s throughput. The original MII design has been extended to support reduced signals and increased speeds. Current variants include reduced media-independent interface (RMII), gigabit media-independent interface (GMII), reduced gigabit media-independent interface (RGMII), serial gigabit media-independent interface (SGMII), high serial gigabit media-independent interface (HSGMII), quad serial gigabit media-independent interface (QSGMII), and 10-gigabit media-independent interface (XGMII).

The Management Data Input/Output (MDIO) serial bus is a subset of the MII that is used to transfer management information between MAC and PHY. At power up, using autonegotiation, the PHY usually adapts to whatever it is connected to unless settings are altered via the MDIO interface.

reference

Full Form	Category
Marilia	Airport Code
Marketing Institute of Ireland	Business
MII	Business
Monogram International Inc	Business
Mortgagee Interest Insurance	Business
Mortgagees Interest Insurance	Business
Ministry of Industry Information (China)	Computer and Networking
Microsoft Ibm Intel	Computing
Medium Independent Interface	Computing
Microstat Ii Datafile	File Type
Manufacturing Integration and Intelligence	General
Maryland Innovation Initiative	General
Mitra Integrasi Informatika	General
Major Industry Identifier	General
Mid Interval Interpolation	General
Macroeconomic Instability Index	General
Made in India	General
My innovation intelligence	General
MITRE Information Infrastructure	General
Made In Indonesia	General
Modular Image Interpretation	General
Mesin Isuzu Indonesia	General
Morris Mini	General
Mark Two	General
Ministry of Information Industry	Governmental
Ministry of Industry and Information	Governmental
Mediators' Institute of Ireland	Governmental
Mineral Information Institute	Governmental
Macromolecules and Interfaces Institute	Governmental
Medicaid Integrity Institute	Governmental
Macromolecules Innovation Institute	Governmental
Malaysian Insurance Institute	Insurance
Media Impact International	International
Made in Italy in Internet	Internet
Made in India in Internet	Internet
Management Information Infrastructure	Military and Defence
Media Independent Interface	Networking
Marilia, Sao Paolo, Brazil	Regional