05-LL-802 - 1 I EEE 802 LANs • Following the success of...

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Unformatted text preview: 1 I EEE 802 LANs • Following the success of CDMA technologies ALOHA & Ethernet, I EEE standardized CDMA/ CD technology as I EEE 802.3 LAN • Also standardized are many of the other broadcast technologies: Token Bus (802.4), Token Ring (802.5), Wireless LAN, a.k.a, WiFi (802.11)… • Standards define – A Link Layer, called Logical Link Control (LLC) – same for all standards – A MAC layer (CSMA/ CD for 802.3, Token Passing for 802.4 and 802.5, CSMA/ CA for 802.11 etc.) – A Physical Layers & the link (physical medium) over which the PL will run, e.g., twisted-pair, coax, fiber, wireless (several PLs are defined for each staqndard) LL & MAC are strictly tied to a PL Logical Link Layer (LLC) – 802.2 Medium Access Control (MAC) Physical Layer LL PL Link (Medium) Scope of I EEE 802 standards 2 802.2 – LLC Service I nterface • Operation and format is based on HDLC • Can be run to export any of the following service interfaces: – Unacknowledged connectionless service •...
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This note was uploaded on 11/03/2009 for the course NET NET taught by Professor N/a during the Spring '09 term at Anadolu University.

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05-LL-802 - 1 I EEE 802 LANs • Following the success of...

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