A Perspective on how ATM Lost Control (2004)
Simon Crosby, Sean Rooney, Rebecca Isaacs, Herbert Bos
Contrary to the initial high expectations, ATM failed to become the universal network technology covering all services and running from the desktop to the backbone. This paper tries to identify the...
An experimental configuration for the evaluation of CAC algorithms (2000)
Interest in Connection Admission Control (CAC) algorithms stems from the need for a network user and a network provider to forge an agreement on the Quality of Service (QoS) for a new network...
Exploring the Queueing Behaviour of ATM Switches (1999)
Nils Bjorkman, Er Latour-henner, Aziz Miah, Simon Crosby, Ian Leslie, Matthew Davey, ...
In this paper we describe methods which we have used to verify queueing models of two ATM switches, namely the Fairisle ATM switch developed at Cambridge University Computer Laboratory and an ATM...
Statistical Properties of a Near-Optimal Measurement-Based CAC Algorithm (1999)
Simon Crosby, Ian Leslie, Brian Mcgurk, John T. Lewis, Raymond Russell, Fergal Toomey
: Our algorithm, called Mosquito 3 , allows sources to be ignorant of their statistics but offers near-optimal utilisation of the network. Our approach is based on Large Deviation Theory : the large...
Simon Crosby, Ian Leslie, John T. Lewis, Raymond Russell, Fergal Toomey
The thermodynamic entropy of an ATM traffic stream is a useful tool for predicting cell-loss ratios and cell-delay. In [1] it was proposed that the entropy of a cell stream be estimated directly at a...
Predicting bandwidth requirements of ATM and Ethernet traffic (1999)
Simon Crosby, Ian Leslie, Meriel Huggard, J. T. Lewis, Brian Mcgurk, Raymond Russell
In this paper, a technique based on the on-line estimation of the entropy of a traffic stream is proposed for the prediction of bandwidth requirements. We report on the results of experiments...
Simon Crosby, Ian Leslie, Meriel Huggard, John T. Lewis, Fergal Toomey, Cormac Walsh
The thermodynamic entropy of an ATM traffic stream is a useful tool for predicting cell-loss ratios and cell-delay. In [1] it was proposed that the entropy of a cell stream be estimated directly at a...
Measurement Based Resource Allocation for Multimedia Applications (1999)
Paul Barham, Simon Crosby, Tim Granger, Neil Stratford, Meriel Huggard, Fergal Toomey
Modern networks are now capable of guaranteeing a consistent Quality of Service (QoS) to multimedia traffic streams. A number of major operating system vendors are also working hard to extend these...
Practical Connection Admission Control for ATM Networks Based on On-line Measurements (1998)
John T. Lewis, Raymond Russell, Fergal Toomey, Brian Mcgurk, Simon Crosby, Ian Leslie
This paper presents algorithms for Connection Admission Control (CAC) in an ATM network which are based upon the use of on-line measurement and estimation to perform resource alloation. Our approach...
Measurement Based Resource Allocation for Multimedia Applications (1998)
Paul Barham, Simon Crosby, Tim Granger, Neil Stratford, Meriel Huggard, Fergal Toomey
Modern networks are now capable of guaranteeing a consistent Quality of Service (QoS) to multimedia traffic streams. A number of major operating system vendors are also working hard to extend these...
Interest in Connection Admission Control (CAC) algorithms stems from the need for a network user and a network provider to forge an agreement on the Quality of Service (QoS) for a connection the user...
Statistical Properties of a Near-Optimal Measurement-Based CAC Algorithm (1997)
Simon Crosby, Ian Leslie, Brian Mcgurk, John T. Lewis, Raymond Russell, Fergal Toomey
: Our algorithm, called Mosquito 3 , allows sources to be ignorant of their statistics but offers near-optimal utilisation of the network. Our approach is based on Large Deviation Theory : the large...
Statistical Properties of a Near-Optimal Measurement-Based CAC Algorithm (1997)
Simon Crosby, Ian Leslie, Brian Mcgurk, John T. Lewis, Raymond Russell, Fergal Toomey
: Our algorithm, called Mosquito 3 , allows sources to be ignorant of their statistics but offers near-optimal utilisation of the network. Our approach is based on Large Deviation Theory : the large...
Counting the Cycles: a Comparative Study of NFS Performance over High Speed Networks (1997)
James Hall, Roberto Sabatino, Simon Crosby, Ian Leslie, Richard Black
In the management of a modern LAN or campus network, two issues are of key importance, namely network performance and capacity planning. In this paper we report on results from an experimental...
Exploring the Queueing Behaviour of ATM Switches (1996)
Nils Bjorkman, Er Latour-henner, Aziz Miah, Simon Crosby, Ian Leslie, Matthew Davey, ...
In this paper we describe methods which we have used to verify queueing models of two ATM switches, namely the Fairisle ATM switch developed at Cambridge University Computer Laboratory and an AT&T...
Predicting bandwidth requirements of ATM and Ethernet traffic (1996)
Simon Crosby, Ian Leslie, Meriel Huggard, J. T. Lewis, Brian Mcgurk, Raymond Russell
In this paper, a technique based on the on-line estimation of the entropy of a traffic stream is proposed for the prediction of bandwidth requirements. We report on the results of experiments...
Simon Crosby, Ian Leslie, Meriel Huggard, John T. Lewis, Fergal Toomey, Cormac Walsh
The thermodynamic entropy of an ATM traffic stream is a useful tool for predicting cell-loss ratios and cell-delay. In [1] it was proposed that the entropy of a cell stream be estimated directly at a...
Simon Crosby, Ian Leslie, John T. Lewis, Raymond Russell, Fergal Toomey
The thermodynamic entropy of an ATM traffic stream is a useful tool for predicting cell-loss ratios and cell-delay. In [1] it was proposed that the entropy of a cell stream be estimated directly at a...
Predicting bandwidth requirements of ATM and Ethernet traffic (1996)
Simon Crosby, Ian Leslie, Meriel Huggard, J. T. Lewis, Brian Mcgurk, Raymond Russell
In this paper, a technique based on the on-line estimation of the entropy of a traffic stream is proposed for the prediction of bandwidth requirements. We report on the results of experiments...
Simon Crosby, Ian Leslie, Meriel Huggard, John T. Lewis, Fergal Toomey, Cormac Walsh
The thermodynamic entropy of an ATM traffic stream is a useful tool for predicting cell-loss ratios and cell-delay. In [1] it was proposed that the entropy of a cell stream be estimated directly at a...
Simon Crosby, Ian Leslie, Peter Key
Current interest in cell delay variation in ATM networks arises from the need to provide guarantees on loss and delay for traffic with real time constraints. This study uses the Fairisle ATM LAN to...
Simon Crosby, Ian Leslie, John T. Lewis, Raymond Russell, Fergal Toomey
The thermodynamic entropy of an ATM traffic stream is a useful tool for predicting cell-loss ratios and cell-delay. In [1] it was proposed that the entropy of a cell stream be estimated directly at a...
MSNL Connection Management (1994)
This document describes a management and control architecture which aims to permit flexible, platform independent communication management in MSNA. The management and control (M&C ) functions are...
Experiences of building ATM switches for the Local Area (1994)
Richard Black, Ian Leslie, Derek Mcauley, Mark Hayter, Shaw Chaung, Simon Crosby, ...
The Fairisle project was concerned with ATM in the local area. An earlier paper [Leslie91] described the preliminary work and plans for the project. Here we present the experiences we have had with...
Introduction MSRPC2 is a Remote Procedure Call system designed to run over the Multi-Service Network Architecture. At the low level it is very lightweight: bindings are implicitly single-threaded and...
MSNL Connection Management Using the Ultrix MSNL master (1994)
This document describes the Ultrix implementation of the msnl management architecture proposed in [1]. Elsewhere in this document collection the design of the MSNL control architecture and the...
Experience and Results from the Implementation of an ATM Socket Family (1994)
This paper describes the implementation of an ATM protocol stack as a protocol family within a 4.3 BSD derived Unix. A novel approach to the implementation of the management and control functions for...
Experience and Results from the Implementation of an ATM Socket Family (1993)
This paper describes the implementation of an ATM protocol stack as a protocol family within a 4.3 BSD derived Unix. A novel approach to the implementation of the management and control functions for...
MSRPC A Lightweight RPC Mechanism for MSNL (1993)
This document describes the current implementation of MSRPC, a simple and lightweight RPC mechanism for use in the world of MSNL. Like MSNL, MSRPC aims to provide improved performance by reducing...
MSNL Connection Management (1993)
This document proposes a management and control architecture which aims to permit flexible, platform independent communication management in MSNA. The management and control (M&C ) functions are...