Intelligent congestion control for ABR service in ATM networks
ACM SIGCOMM Computer Communication Review
Rate-based congestion control for ATM networks
ACM SIGCOMM Computer Communication Review
The converging flows problem: an analytical study
INFOCOM '95 Proceedings of the Fourteenth Annual Joint Conference of the IEEE Computer and Communication Societies (Vol. 1)-Volume - Volume 1
Network buffer requirements of the rate-based control mechanism for ABR services
INFOCOM'96 Proceedings of the Fifteenth annual joint conference of the IEEE computer and communications societies conference on The conference on computer communications - Volume 3
Scalability issues for distributed explicit rate allocation in ATM networks
INFOCOM'96 Proceedings of the Fifteenth annual joint conference of the IEEE computer and communications societies conference on The conference on computer communications - Volume 3
ATM rate based congestion control using a smith predictor: an EPRCA implementation
INFOCOM'96 Proceedings of the Fifteenth annual joint conference of the IEEE computer and communications societies conference on The conference on computer communications - Volume 2
| Hi-index | 0.00 |
Because the ATM Forum does not standardize the ABR flow control algorithm that an ATM switch should run, some ATM networks are likely to contain switches that run different ABR flow control algorithms. Even if all the switches within a ``cloud'' of switches use the same algorithm, individual clouds (each with its own algorithm) will be interconnected by virtual circuits. Virtual circuits which traverse multiple clouds will therefore be controlled by two different flow control algorithms concurrently. In this paper we explore some of the ramifications of mixing different flow control algorithms in the same ATM network. We identify the rate mismatch problem, which arises when a nonbottleneck switch (that uses one algorithm) interferes with the control of the bottleneck switch (that uses another algorithm). We formulate a hypothesis that states the conditions that lead to the rate mismatch problem. These conditions identify a specific class of problematic topologies. We validate the hypothesis formally and prove that rate mismatch causes unfairness. Using four different algorithms, in combinations of two at a time, we illustrate the interoperability of ABR flow control algorithms.