ieee 802 standard for computer networks
DESCRIPTION
Its about the need for standard in networking, and caters to IEEE 802 standard in detail.TRANSCRIPT
Need for Standardization and IEEE 802 Standard
T S Pradeep Kumar Email: [email protected]
http://pradeepkumar.org
Need for Standards
• make or break networking products
• Interoperability
• Vendor independence is designing or manufacturing products.
• Should have a common ground where manufacturer's obey the standardization
List of Standards
• There are several Standards, but most common ones are
• ISO (International organization of Standardization)
• IEEE (Institute of Electrical and Electronic Engineers)
ISO
• OSI Model is developed by ISO for Networking
• ANSI is the member of ISO that develops standards from programming language to Disk drives
IEEE
• IEEE Society has more than 3 Lakh members
• Computer Soceity of IEEE alone has more than 1 Lakh members
• IEEE 802.2 - 802.5 for wired LAN Standards
802.1 (Bridging)
• Overall picture of LAN and connectivity
• addressing network management
• Standards for Bridges
802.2 (LLC)
• Logical Link Control
• Communication of packets from one device to another device.
• It deals with communication
802.3(Ethernet)
• Ethernet Mainly
• CSMA/CD
• Speed of 10MB/s
• 802.4 is Token bus and it is disbanded
802.5 (Token Ring)
• Token Ring
• Speed of 4Mbps or 16Mbps
802.7 .8 .9 .10
• 802.7 - Broadband LAN and it is withdrawn
• 802.8 (Fiber optic cabling and access methods)
• 802.9 (Voice and digital data integration)
• 802.10 (interoperable security)
802.11 (Wi Fi)
• Wireless LAN
• Wi Fi Certified
802.11a, 802.11b
• 11Mbps Data rate
• PHY operates at 5GHz
• Frequency of 2.400 GHz to 2.4835 GHz
802.11d, 802.11e
• Global roaming for 802.11a and 802.11b
• MAC Layer particulars set
• 802.11e
• Quality of Service
• data, voice and video transmission prioritisation
802.11g, h, i• Extends the Maximum rate of
54Mbps
• 802.11h
• Transmit Power Control
• Dynamic Frequency Selection
• 802.11i
• security of WLAN
• key management, authentication ,etc.
802.11j, k, m
• Japanese extension to wifi
• 4.9Ghz to 5 Ghz
• 802.11k
• radio resource managements
• 802.11m
• maintenance of existing documentation
802.11n, 802.11ac• Multi input Multi output
• Higher speed standards of up to 600Mbps
• uses both 2.4GHz and lesser bands within 5GHz
• 802.11ac
• to be approved in Feb 2014
• addition of Multi User MIMO
• 1300Mbps
• 80MHz channel in 5GHz and 40MHz channel in 2.4GHz
802.15 (WPAN)
• Wireless Personal Area Networks
• 802.15.1 - Bluetooth
• 802.15.3 - Short range, high bandwidth, UWB
• 802.15.4 - ZigBee, Short range wireless sensor networks
• 802.15.5 - Mesh Networks
802.1x
• 802.16 - Wireless Metropolitan Area Networks (WMAN)
• 802.17 - Resilient Packet Ring
• 802.18 - Radio regulatory TAG for the future standards
802.2x
• 802.20 - Wireless Mobility - mobile broadband wireless access
• 802.21 - Handoff/Interoperability between networks
• 802.22 - Wireless Regional Area Networks
• 802.24 - Smart Grid TAG
Questions !!!!