Bundling Internet Traffic over VBR ATM Networks Canada - Germany Research Activity


  1. Lamont, L.
  2. Villasenor, L.
  3. Chefai, N.
  4. Miloucheva, I.
Corporate Authors
Defence Research Establishment Ottawa, Ottawa ONT (CAN);Communications Research Centre, Ottawa ONT (CAN)
An initiative between DeTeBerkom in Berlin and the Communication Research Centre (CRC) in Ottawa was undertaken to determine realistic resource reservation requirements when Internet Protocol (IP) telephony applications are multiplexed with bulk data applications in an Asynchronous Transfer Mode (ATM) network. In our work, we considered different ways of bundling voice (i.e. IP telephony) and data traffic. We analyse the throughput achieved for the data traffic and the rate, packet loss and delay variance for the voice traffic for each bundle type. We illustrate the specific effects that different performance factors such as Variable Bit Rate (VBR) traffic parameters, the Transmission Control Protocol (TCP) flow control and send window size, network delay, system scheduling and application traffic have on the Quality of Service (QoS) provision in an ATM Wide Area Network (WAN) and Local Area Network (LAN) environment. Trans-Atlantic connections, using national high-speed test networks and Teleglobe's Trans-Atlantic submarine fibre CANTAT-3 are used to obtain the ATM WAN measurements. LAN measurements are performed using an ATM LAN testbed at CRC. The experiments are performed and evaluated with the CM Toolset, which provides for the automation of QoS analysis of selected applications under different ATM network environments.
Asynchronous Transfer Mode (ATM) networks;Bundling;VBR Service;IP telephony;Resource reservation;Bundling/multiplexing;UDP;TCP;ATM WAN;ATM LAN;Transatlantic links
Report Number
DREO-TR-1999-020;CRC-98-007 — Technical Report
Date of publication
01 Dec 1998
Number of Pages
Hardcopy;Document Image stored on Optical Disk

Permanent link

Document 1 of 1

Date modified: