• IEEE 802 LAN
• IEEE 802.1 Standards for LAN & management and remote media access control (MAC) 
• IEEE 802.2 Standards for Logical Link Control (LLC) standards for connectivity.
• IEEE 802.3 Ethernet Standards for Carrier Sense Multiple Access with Collision Detection (CSMA/CD).
• IEEE 802.4 Standards for token passing bus access.
• IEEE 802.5 Standards for token ring access and for communications between LANs and MANs
• IEEE 802.6 Standards for information exchange between systems.
• IEEE 802.7 Standards for broadband LAN cabling.
• IEEE 802.8 Fiber optic connection.
• IEEE 802.9 Standards for integrated services, like voice and data.
• IEEE 802.10 Standards for LAN/MAN security implementations.
• IEEE 802.11 Wireless Networking – "WiFi".
• IEEE 802.12 Standards for demand priority access method.
• IEEE 802.14 Standards for cable television broadband communications.
• IEEE 802.15.1 Bluetooth
• IEEE 802.16 Wireless Networking – "WiMAX"

  to know more pls visit the link

  http://standards.ieee.org/about/get/

http://standards.ieee.org/about/get/802/802.11.html

IEEE 802.11™: WIRELESS LOCAL AREA NETWORKS (LANs)

   

  802.11  is  wireless standards  known as Wi-Fi technologies. Additionally, Bluetooth and various other non Wi-Fi technologies also exist, each implemented for specific networking applications

•     802.11 — it support  wireless LANs and provides 1 or 2 Mbps transmission in 2.4 Ghz Band.

802.11a — it support wireless LANs and provides up to 54-Mbps in the 5GHz band.

802.11b— an extension to 802.11 that applies to wireless LANS and provides 11 Mbps transmission .

802.11e —  support for LANs, and it supports 11-Mbps & 54-Mbps wireless LAN .   

802.11g — it support wireless LANs and is used for transmission over short distances at up to 54-Mbps in the 2.4 GHz bands.

802.11n — 802.11n builds upon previous 802.11 standards by adding multiple-input multiple-output (MIMO).

802.11r -  802.11r, also called Fast Basic Service Set (BSS) Transition, supports VoWi-Fi handoff between access points to enable VoIP roaming on a Wi-Fi network with 802.1X authentication.

802.1X — Not to be confused with 802.11x (which is the term used to describe the family of 802.11 standards) 802.1X is an IEEE standard for port-based Network Access Control that allows network administrators to restricted use of IEEE 802 LAN service access points to secure communication between authenticated and authorized devices

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Layer Three Deivice (Router)

The layer three device is router.it's working on layer "network layer".we use router when we wanna create large network means router connect the networt.in market many company making router among that Cisco & juniper & linksys are often widely shown in network.

   

Cisco 2800 integrated router

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Vlan Trunking protocole.

Vtp is Vlan Trunkng protocol,it's cisco propritery protocole,with use  of that protole we can add ,delete & edit Vlan in the switch ,when we have more than one switch in our network then ,with use of vtp protocol we can assign VTP on switch in Diffrent mode.

  There are three basic mode of VTP.

1.server mode :- in server mode you can ADD,Edit & delete vlan.

2.Transperent mode:- in  Transparent  switches do not participate in VTP does not advertise & synchronize its VLAN configuration based on received advertisements, but transparent switches do forward VTP advertisements that they receive out their trunk ports in VTP Version 2

3.Client mode :-in Client mode user can not add ,edit & delete Vlan,in this mode switch just accept advertise ment from server mode switch & set it.

 

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Vlan Steps & Configuration

 Vlan is very good funda,with the use of vlan we can give sequiry to our lan,with the use  of vlan we can provide sequre our switch port that are in same switch,

in vlan once you create vlan by command ,so once you created Vlan, then you  have to apply that vlan on the switch port,factory default vlan1 & all port in vlan1,when you apply your created vlan to any port then that port can not connect with default Vlan port. this is main in Vlan.only that port transfer data which are in same vlan.

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An overview of the new post editor - Blogger Help

An overview of the new post editor - Blogger Help

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Router Command's

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