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computer Networking- CCNA part 9 of Segment1 (LLC vs MAC sublayers of Data Link layer)

LLC vs MAC Sublayers 

hello friends this is Vasu Birla and today we will know about sublayers of data link layer .

As we discussed in the last part that data link layer takes data from physical layer in form of bits (0,1) and check the transmission errors and then convert it in to frames.

Data Link layer performs very important and complex task in our network. so for reducing of its complexcity it further divided in two parts or sub-layers. These are -

  • LLC (Logical Link Control) Layer
  • MAC (Media Access Control) Layer

Logical Link Control Layer -  This sublayer provides services to Network Layer and  hides details of data link layer on network layer. It establish and control Logical links between local devices on network.  Today Most LAN technologies use this LLC protocol.

LLC and MAC functions


Media Access Control Layer- For Reducing the data traffic and conflict problem in network medium this MAC layer is used. MAC layer defines that how devices communicate on network mediums .

 

In the next paRT  we will know about Layer 3  or network layer ,,,   ok  hare krishna,,, good day .. 

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