Kumar, A and Babu, TVJG and Anand, SVR (1995) Queuing strategies for qos management of traffic between lans interconnected by low-speed wan links. In: Internetworking: Research and Experience, 6 (1). pp. 15-40.
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We provide a comparative performance evaluation of packet queuing and link admission strategies for low-speed wide area network Links (e.g. 9600 bps, 64 kbps) that interconnect relatively highspeed, connectionless local area networks (e.g. 10 Mbps). In particular, we are concerned with the problem of providing differential quality of service to interLAN remote terminal and file transfer sessions, and throughput fairness between interLAN file transfer sessions. We use analytical and simulation models to study a variety of strategies. Our work also serves to address the performance comparison of connectionless vs. connection-oriented interconnection of CLNS LANS. When provision of priority at the physical transmission level is not feasible, we show, for low-speed WAN links (e.g. 9600 bps), the superiority of connection-oriented interconnection of connectionless LANs, with segregation of traffic streams with different QoS requirements into different window flow controlled connections. Such an implementation can easily be obtained by transporting IP packets over an X.25 WAN. For 64 kbps WAN links, there is a drop in file transfer throughputs, owing to connection overheads, but the other advantages are retained, The same solution also helps to provide throughput fairness between interLAN file transfer sessions. We also provide a corroboration of some of our modelling results with results from an experimental test-bed.
| Item Type: | Journal Article |
|---|---|
| Publication: | Internetworking: Research and Experience |
| Publisher: | John Wiley & Sons |
| Additional Information: | Copyright of this article belongs to John Wiley & Sons. |
| Department/Centre: | Division of Mechanical Sciences > Mechanical Engineering |
| Date Deposited: | 24 May 2011 05:56 |
| Last Modified: | 28 Nov 2018 15:14 |
| URI: | http://eprints.iisc.ac.in/id/eprint/37867 |
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