What are the two sublayers that the OSI physical layer is broken into with the IEEE model?
NOTE: Using software to mass-download the site degrades the server and is prohibited. Custom Search Data Link Layer (Layer 2) (Page 1 of 2) The second-lowest layer (layer 2) in the OSI Reference Model stack is the data link layer, often abbreviated “DLL” (though that abbreviation has other meanings as well in the computer world). The data link layer, also sometimes just called the link layer, is where many wired and wireless local area networking (LAN) technologies primarily function. For example, Ethernet, Token Ring, FDDI and 802.11 (“wireless Ethernet” or “Wi-Fi’) are all sometimes called “data link layer technologies”. The set of devices connected at the data link layer is what is commonly considered a simple “network”, as opposed to an internetwork. Data Link Layer Sublayers: Logical Link Control (LLC) and Media Access Control (MAC)The data link layer is often conceptually divided into two sublayers: logical link control (LLC) and media access control (MAC). This split is based on the architecture used in the IEEE 802 Project, which is the IEEE working group responsible for creating the standards that define many networking technologies (including all of the ones I mentioned above except FDDI). By separating LLC and MAC functions, interoperability of different network technologies is made easier, as explained in our earlier discussion of networking model concepts. The following are the key tasks performed at the data link layer:
Home - Table Of Contents - Contact Us The TCP/IP Guide (http://www.TCPIPGuide.com) � Copyright 2001-2005 Charles M. Kozierok. All Rights Reserved. What are 2 protocols that are used on the physical layer?Layer 1, the Physical Layer
The major protocols used by this layer include Bluetooth, PON, OTN, DSL, IEEE. 802.11, IEEE. 802.3, L431 and TIA 449.
What are the 2 Sublayers defined under the data Access Layer in TCP IP model?The two sub-layers of the Data Link Layer are: Logical Link Control (LLC) Media Access Control (MAC)
How many DLL sublayers are defined by IEEE?▫ For the mandatory data services supported by all IEEE 802 networks, the DLL is structured as two sublayers, with the logical link control (LLC) sublayer, described in 5.2.
Why OSI model is broken up in layers?As mentioned, the model is designed to break down data transmission standards, processes and protocols over a series of seven layers, each of which is responsible for performing specific tasks concerning sending and receiving data.
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