6. data link layer physical addressing

1. Communication
Networks
- Data Link Layer
[Physical Addressing]

2. Video Lectures for these Slides are
available at
www.youtube.com/GURUKULA

3. Data Link Layer - Introduction
The MAC layer is responsible for
moving data packets to and from
one Network Interface Card (NIC)
to another across a shared channel.
The LLC sublayer acts as an
interface between the media access
control (MAC) sublayer and the
network layer.

4. Data Link Layer Functions:
•Media Access Control
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•Logical Link Control:
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5. Physical Addressing - Introduction
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6. Representation of Addresses
47:20:1B:2E:08:EE

7. Classification of Addresses
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8. Classification of Addressing

9. Identification of Addressing Modes
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10. Examples
•4A:30:10:21:10:1A
➢This is a unicast address because A in binary is 1010
•47:20:1B:2E:08:EE
➢This is a multicast address because 7 in binary is 0111
•FF:FF:FF:FF:FF:FF
➢This is a broadcast address because all digits are F’s

11. References:
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