IEEE802 Working Committee

IEEE802
LAN Standard

　　
IEEE
English
Institute
Electrical and Electronics Engineers
The Chinese translation is the association of Electrical and Electronics Engineers. The Association is headquartered in the United States and mainly develops data communication standards and other standards.
IEEE802
Drafting board of the Committee

Draft web site and sent to the American National Standards Institute (
ANSI
) Approved and standardized in the United States.
IEEE
The draft was also sent to the International Organization for Standardization (ISO (
ISO
).
ISO
Put this
802
The specification is called
ISO 8802

Standards, therefore, many
IEEE
Standard
ISO
Standard. For example,
IEEE 1, 802.3
Standard is
ISO 802.3
Standard.

　　
IEEE 1, 802
The Specification defines how the network adapter accesses the transmission media (such as optical cables, twisted pair wires, and wireless cables) and how to transmit data on the transmission media, it also defines the connection establishment and maintenance between network devices that transmit information.

And the way of removal. Follow
IEEE 1, 802
Standard Products include NICs, bridges, routers, and other components used to establish a local network.

I,
IEEE802
Committee

　　
IEEE802
The Committee was founded in
1980
At the beginning of the year, the Committee was specialized in the formulation of LAN standards. The Committee was divided into three chapters:

Transfer MEDIA branch
----
Study the LAN Physical Layer Protocol

Signal Access Control Branch
----
Research on data link layer protocols

High-level interface Branch
----
Research on protocols from the network layer to the Application Layer

II,
IEEE802
LAN Standard Series

　　
IEEE802
Is a LAN Standard Series

　　
802.1a ------
Lan Architecture

　　
802.1b ------
Addressing, network interconnection and
Network Management

　　
802.2 -------
Logical Link Control
(LLC)

　　
802.3

------- CSMA/CD
Access control methods and physical layer specifications

　　
802.3i ------ 10base-t
Access control methods and physical layer specifications

　　
802.3u ------ 100base-t
Access control methods and physical layer specifications

　　
802.3ab ----- 1000base-t
Access control methods and physical layer specifications

　　
802.3z ------ 1000base-sx
And
1000base-lx
Access control methods and physical layer specifications

　　
802.4 ------- token-bus
Access control methods and physical layer specifications

　　
802.5 ------- token-ring
Access Control Method

　　
802.6 ------- man



Access control methods and physical layer specifications

　　
802.7 -------
Bandwidth LAN access control methods and physical layer specifications

　　
IEEE802.8-------FDDI
Access control methods and physical layer specifications

　　
802.9 -------
Integrated data voice network

　　
802.10 ------
Network security and confidentiality

　　
802.11 ------ Wireless LAN



Access control methods and physical layer specifications

　　
IEEE802.12------100VG-anylan
Access control methods and physical layer specifications

　　
IEEE 1, 802.14
Coaxial coordination of hybrid optical fiber
(HFCs)
The Protocol for data communication between the front-end and the user site of the network.

　　
IEEE 1, 802.15
Wireless Personal network technical standard, represented by Bluetooth
(Bluetooth)
.

　　
IEEE 1, 802.16
: Broadband Wireless
Man
Standard

-

WiMAX

　　
IEEE 1, 802.17
: Elastic grouping ring (
Rrr
) Working Group

　　
IEEE 1, 802.18
: Broadband Wireless LAN technical consultation group (
Radio
Regulatory
)

　　
IEEE 1, 802.19
: Technical Consultation Group for coexistence of multiple virtual LAN

　　
IEEE 1, 802.20
: Mobile Broadband Wireless Access (
Mbwa
) Working Group

III,
IEEE802
Lan Model

　　
IEEE802
Standard Defined
ISO/OSI
Physical Layer and data link layer,

　　
1.
Physical Layer

The physical layer includes physical media and physical media connection devices.
(PMA)
, Connection unit
(AUI)
And Physical receiving and receiving signal formats
(PS)
. The main functions of the physical layer are encoding, decoding, clock extraction and synchronization, sending, receiving, and carrier detection, and provide services for the data link layer.

　　
2.
Data Link Layer

Data link layer includes Logical Link Control
(LLC)
Sub-layer and Media Access Control
(Mac)
Child Layer

　　
LLC
The main function of the sub-layer is to provide the connection service type, in which connection-oriented services can provide reliable communication. Currently, common
LLC
Protocols include:
CSMA/CD
,
Token-bus
,
Token-ring
And
FDDI (FDDI
Optical Fiber Distribution Data Interface
.
Physical
.
Non-Protocol
)
.

　　
Mac
The main function of the Child layer is to control access to the transmission media.