A congestion control mechanism for enterprise network traffic over asynchronous transfer mode networks

Available bit rate (ABR) is an emerging asynchronous transfer mode (ATM)-ba sed telecommunication service, which dynamically allocates bandwidth to the users according to the available bandwidth in the network. However, resear ch shows that ABR-based connections suffer from congestion at LAN-ATM gatew ay when ATM network abruptly reduces the bandwidth available to the gateway . Gateway congestion may result in high packet loss. This paper proposes a gateway congestion control mechanism, which controls the rate of outgoing e nterprise traffic according to the available bandwidth at the gateway. Our analysis shows how to achieve a stable system and keep the packet loss belo w a desired threshold. Analytical results are validated by simulation. (C) 1999 Elsevier Science B.V. All rights reserved.