Simulation and Performance Analysis of Different TCP Variants and Queuing Mechanisms in Different Network Topologies
Keywords:
Congestion, Fairness, Unfairness, Queuing, , TCP Fack, Sack, Vegas, CBRAbstract
The algorithm for controlling TCP Congestion as well as throughput is the main reason we can use the internet successfully today, despite the resource bottleneck or the very large and unforeseen access of users. There are several implementations of this protocol, where we can single out Vegas, Fack and Sack.Through simulations in NS-2, we were able to judge their performance in conditions of "congestion", arguing that Vegas was the most optimal.We have also highlighted the concept of fairness and unfairness among TCP types.The results of the respective simulations showed how "fair" these variants were in the use of bandwidth, where the Vegas type stands out for the fairer behavior.Finally, we focused on the effects of queuing algorithms, such as RED and the proposed algorithm, as well as their impact on fairness between TCP variants.: Congestion
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