Layer 2
Written on 3:58 AM by ooe
IEEE’s Adaptation of Ethernet
There are absolutely two variants of Ethernet: IEEE’s accomplishing and the DIX implementation. Ethernet was developed by three altered companies in the aboriginal 1980s: Digital, Intel, and Xerox, or DIX for short. This accomplishing of Ethernet has acquired over time; its accepted adaptation is alleged Ethernet II. Devices active TCP/IP about use the Ethernet II implementation.
The additional adaptation of Ethernet was developed by IEEE and is connected in the IEEE 802.2 and 802.3 standards. IEEE has breach the abstracts articulation band into two components: MAC and LLC. These apparatus are declared in Table 2-5. The top allotment of the abstracts articulation band is the LLC, and its action is performed in software. The basal allotment of the abstracts articulation band is the MAC, and its action is performed in hardware.
Logical Articulation Control (LLC) 802.2
Defines how to circuitous assorted arrangement band protocols in the abstracts articulation band frame. LLC is performed in software.
MAC 802.3 Defines how advice is transmitted in an Ethernet environment, and defines the framing, MAC addressing, and mechanics as to how Ethernet works. MAC is performed in hardware
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