Traffic Management is the key feature of ATM that distinguishes it from current networking protocols and makes it suitable for deployment in high-speed networks and for providing performance guarantees in an integrated environment.

ATM Forum has developed three different service categories for data: Available Bit Rate (ABR) service using explicit feedback, Unspecified Bit Rate (UBR) with no best effort (no guarantees), and Guaranteed Frame Rate (GFR) with minimum throughput guarantees.

Issues in performance of TCP/IP over each of these three services will be presented. Ways to improve the performance will also be discussed. In case of GFR, design issues related to buffering and queueing will be described.

We will also briefly discuss other ATM related research at the Ohio State University.

Note: This talk is partly similar to the talk given at Lucent, Middletown, NJ facility on June 12, 1998.

This talk covers the following topics:

• TCP/IP over ATM using ABR, UBR, and GFR Services
• Why ATM?
• ABR: Binary vs Explicit Rate
• Why Explicit Rate Indication?
• Internet Protocols over ATM
• ABR vs UBR
• Improving Performance of TCP over UBR
• Policies
• Policies: Results
• Guaranteed Frame Rate (GFR)
• Guaranteed Rate Service
• Guaranteed Rate: Results
• GFR: Results
• Differential Fair Buffer Allocation
• VS/VD
• Networking Research at OSU
• OCARnet
• OCARnet
• OSU National ATM Benchmarking Lab
• Performance Testing Facility
• Voice/Video over ATM and IP
• Video Testbed
• Wireless Networking
• Summary
• Our Contributions and Papers

Presentation slides in Adobe Acrobat Format: 1 slide/page