Available Bit Rate in an ATM Network
Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
In this report ATM's ABR-service (Available Bit Rate) is investigated. The intension of ABR is that unused capacity in the network could be allocated for ABR traffic and that the sources sending ABR traffic should regulate their sending rate depending on the current state of the network.
When a network node needs more capacity, it may reduce the ABR sending rate and if the network has capacity left the ABR sources may incerease thier sending rates.
The "police function" that controls the ABR sources thus gives some variation in the time it takes for a increase/decrease action to propagate to the source and then the sources have to act according to the new parameters to change their sending rates. How large this variation is depends on the current sending rate and the distance to the sending source as well as buffer sizes and current workload.
This study has been made to investigate how this variation varies according to different types of network configurations and parameter setups. The simulations done for this study will be valid for these network configurations and together with other simulation results it will be valid for a wider range of networks.
Place, publisher, year, edition, pages
1996. , 69 p.
IdentifiersURN: urn:nbn:se:kth:diva-98044OAI: oai:DiVA.org:kth-98044DiVA: diva2:534649
Subject / course
Master of Science in Engineering - Electrical Engineering
1996-08-30, Seminar room "Telegrafen", Isafjordsgatan 22, Kista, 09:00 (English)
Maguire Jr., Gerald Q., ProfessorLundbäck, ErikVatn, Jon-Olov
Maguire Jr., Gerald Q., Professor