Part 4 Medium Access Control
4.1 Data Link Layer - Medium Access Control
MAC Protocols - Two Basic Approaches
Broadcast Networks
Random Access Protocols - Variations
Sheduling Protocols - Variations
Token Ring - Collision Free
MAC Protocol Assumptions
1-Persistent CSMA
Non-Persistent CSMA
p - Persistent CSMA
Given n Stations Choose a Value for p
CSMA / CD (Collision Detection)
CSMA / CD
Contention Period
Length of Contention Period = 2_
CSMA/ CD and Collisions
Backoff Algorithms
Ethernet (CSMA/ CD)
Length Restrictions contíd
Ethernet Physical Characteristics Continued
CSMA / CD Frame Structure (IEEE 802.3)
Address Fields IEEE 802.3
Ethernet: Control Procedures
Packet Size Issues - minimum packet size?
Packet Size Issues
Effective Throughput of Ethernet
Ethernet Disadvantages
Ethernet Advantages
Gigabit Ethernet
Email: unger@cpsc.ucalgary.ca
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