congestion control using

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The Internet’s excellent scalability and robustness result in part from the end-to-end nature of Internet congestion control. End-to-end congestion control algorithms alone, however, are unable to prevent the congestion collapse and unfairness created by applications that are unresponsive to network congestion

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CreativeSoft Corporate Office 412 Annpurna Block Aditya Enclave Ameerpet Hyderabad – 500016 Tel: +91-40-40159158 Mobile: 91-9247249455 ABSTRACT The Internet’s excellent scalability and robustness result in part from the end-to-end nature of Internet congestion control. End-to-end congestion control algorithms alone however are unable to prevent the congestion collapse and unfairness created by applications that are unresponsive to network congestion. To address these maladies we propose and investigate a novel congestion-avoidance mechanism called Congestion Free Router CFR. CFR entails the exchange of feedback between routers at the borders of a network in order to detect and restrict unresponsive traffic flows before they enter the network thereby preventing congestion within the network. The Internet’s excellent scalability and robustness result in part from the end-to-end nature of Internet congestion control. End-to-end congestion control algorithms alone however are unable to prevent the congestion collapse and unfairness created by applications that are unresponsive to network congestion. To address these maladies we propose and investigate a novel congestion-avoidance mechanism called Congestion Free Router CFR. CFR entails the exchange of feedback between routers at the borders of a network in order to detect and restrict unresponsive traffic flows before they enter the network thereby preventing congestion within the network. The fundamental philosophy behind the Internet is expressed by the scalability argument: no protocol mechanism or service should be introduced into the Internet if it does not scale well. A key corollary to the scalability argument is the end-to-end argument: to maintain scalability algorithmic complexity should be pushed to the edges of the network whenever possible.

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CreativeSoft Corporate Office 412 Annpurna Block Aditya Enclave Ameerpet Hyderabad – 500016 Tel: +91-40-40159158 Mobile: 91-9247249455

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CreativeSoft Corporate Office 412 Annpurna Block Aditya Enclave Ameerpet Hyderabad – 500016 Tel: +91-40-40159158 Mobile: 91-9247249455 PROJECT MODULES The various modules in the protocol are as follows: Module 1: - SOURCE MODULE. Module 2: - INROUTER ROUTER MODULE. Module 3: - ROUTER MODULE. Module 4: - OUTROUTER ROUTER MODULE. Module 5: - DESTINATION MODULE. SOURCE MODULE:- The task of this Module is to send the packet to the InRouter router. INROUTER ROUTER MODULE:- An edge router operating on a flow passing into a network is called an InRouter router. CFR prevents congestion collapse through a combination of per-flow rate monitoring at OutRouter routers and per-flow rate control at InRouter routers. Rate control allows an InRouter router to police the rate at which each flow’s packets enter the network.

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CreativeSoft Corporate Office 412 Annpurna Block Aditya Enclave Ameerpet Hyderabad – 500016 Tel: +91-40-40159158 Mobile: 91-9247249455 InRouter Router contains a flow classifier per-flow traffic shapers e.g. leaky buckets a feedback controller and a rate controller ROUTER MODULE:- The task of this Module is to accept the packet from the InRouter router and send it to the OutRouter router. OUTROUTER ROUTER MODULE:- An edge router operating on a flow passing out of a network is called an OutRouter router. CFR prevents congestion collapse through a combination of per-flow rate monitoring at OutRouter routers and per-flow rate control at InRouter routers. Rate monitoring allows an OutRouter router to determine how rapidly each flow’s packets are leaving the network. Rate monitored using a rate estimation algorithm such as the Time Sliding Window TSW algorithm. OutRouter Router contains a flow classifier Rate monitor and a feedback controller. DESTINATION MODULE:- The task of this Module is to accept the packet from the OutRouter router and stored in a file in the Destination machine.

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CreativeSoft Corporate Office 412 Annpurna Block Aditya Enclave Ameerpet Hyderabad – 500016 Tel: +91-40-40159158 Mobile: 91-9247249455 Software Requirements Specifications  Java1.4 or More  Swings  Windows 98 Hardware Requirements Specifications  Hard disk: 40 GB  RAM: 128mb  Processor: Pentium 4  Monitor: 15” color monitor  Floppy drive: 1.44 MB  Mouse: HCL  CD Drive: LG 52X  Printer: Laser

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