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Closed Loop Credit-Based Flow Control with Internal Backpressure in Input and Output Queued Switches (2000)
| Venue: | Proceedings of IEEE Workshop on High Performance Switching and Routing |
| Citations: | 3 - 1 self |
BibTeX
@INPROCEEDINGS{Schoenen00closedloop,
author = {Rainer Schoenen and Achim Dahlhoff},
title = {Closed Loop Credit-Based Flow Control with Internal Backpressure in Input and Output Queued Switches},
booktitle = {Proceedings of IEEE Workshop on High Performance Switching and Routing},
year = {2000},
pages = {195203}
}
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Abstract
A credit-based flow control scheme is very effective for handling cells of the ABR or Controlled Transfer service class in ATM networks. The properties of immediate ramp-up after congestion and the impossibility of buffer overflow by construction are what makes this method very attractive. For best results, many switches along the route must support flow control, acting as virtual source/destination node. To support closed loops along the route each of these switches must also provide an internal flow control to pass the backpressure from the destinations back to the sources and avoid internal buffer overflow. In this paper we treat the interaction of external and internal flow control and the alternatives of internal backpressure mechanisms, emphasizing Virtual-Output-Queued switches. The properties are studied with Petri net models. 1
Keyphrases
output queued switch internal backpressure closed loop credit-based flow control internal flow control immediate ramp-up closed loop flow control internal backpressure mechanism credit-based flow control scheme buffer overflow petri net model many switch atm network virtual-output-queued switch controlled transfer service class virtual source destination node internal buffer overflow
