Management of Bandwidth with Congestion Control in Packet Networks
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Date
2016
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Punjab Agricultural University, Ludhiana
Abstract
With the growth of internet, the user’s requirements in terms of scale,
functionality of network and performance of internet also increases. It becomes very
important to guarantee the efficiency, stability and performance of a given network as
per the user’s requirements. It is known that the data transfer between computers takes
place in the form of packets. Given the network architecture of the underlying
network, the performance of the network relies on control methods and effective flow
management measures taken. Therefore congestion control ought to be the required
premise. The support for congestion control is provided by Transmission Control
Protocol (TCP). Many Active Queue Management (AQM) algorithms have been
proposed that helps in congestion avoidance, the most basic of them is Random Early
Detection (RED) Algorithm. Due to drawbacks of RED, many enhancements of RED
were proposed. Dynamic gentle Random Early Detection (DGRED) is the latest
enhancement of RED which has been implemented in Network Simulator-3 (NS-3). A
network scenario consisting of 6 nodes has been taken. The performance of both the
algorithms has been evaluated by configuring the routers and the results have been
compared. Jitter parameter has been further testified by later on modifying the
topology by adding another node. The topology modification brings out better jitter
results.
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