NANOG Meeting Presentation Abstract

A Fine-Grained View of High-Performance Networking
Meeting:	NANOG22
Date / Time:	2001-05-21 11:05am - 11:45am
Room:	Forum Hall
Presenters:	Speakers: Steve Casner, Packet Design Stephen L. Casner received his B.A. in Mathematics from Occidental College in 1973 and his M.S. in Computer Science from the University of Southern California in 1976, where he designed and implemented protocols and software for some of the earliest experiments with packet voice using the ARPAnet at USC\'s Information Sciences Institute. He took this work to the commercial arena with further development of packet-based audio and video technology for both conferencing and streaming applications at Precept Software, which was acquired by Cisco Systems. Currently at Packet Design, he is applying some of the same techniques in network performance measurement and analysis. He is also co-chairman of the Audio/Video Transport working group of the Internet Engineering Task Force. This group has developed the Real-time Transport Protocol (RTP) for packet audio and video as well as other real-time multicast and unicast applications. He was the primary organizer for the establishment of the worldwide Mbone in its initial experimental phase. Cengiz Alaettinoglu, Packet Design. Chia-Chee Kuan, Packet Design.
Abstract:	Network operators have a fairly good idea about how well their networks are working on a macro level -- link downtime percentages, ping latencies, CPU utilization, etc. However, few have examined the fine-grained behavior of their networks. We have collected high-resolution (20 microseconds) jitter measurements on a wide-area backbone network for a duration of several weeks. Based on this data, we claim that today\'s wide-area backbone networks are ready to support applications such as circuit emulation over IP -- or they could be, as this example shows. We observed that most of the time the jitter level is quite low, making the data very uniform. But very occasionally there are extremely interesting events that last from a few seconds to a few minutes. In particular, we detected sustained routing loops in IS-IS, which should not occur. We will show the surprising effect this has on the data, and examine some protocol anomalies that may have been the cause. If these rare problems are corrected, low-latency, low-loss Virtual Wire services can be supported.
Files:	A Fine-Grained View of High-Performance Networking Steve Casner Presentation(PPT)
Sponsors:	None.

Back to NANOG22 agenda.

NANOG22 Abstracts

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• BGP Techniques for Service Providers
  Speakers:
  Phil Smith, Cisco Systems;

• Basic ISP Traffic Engineering Tools and Practices
  Speakers:
  John Brown, Chagres Technologies;

• ARIN Policies and Guidelines
  Speakers:
  Richard Jimmerson, ARIN;

• Estimating Global Denial-of-Service Activity
  Speakers:
  Stefan SavageUCSD/Asta Networks; .
  David MooreCAIDA/CAIMIS; .
  Geoff VoelkerUCSD CSE; .
  

• Estimating Global Denial-of-Service Activity
  Speakers:
  Stefan SavageUCSD/Asta Networks; .
  David MooreCAIDA/CAIMIS; .
  Geoff VoelkerUCSD CSE; .
  

• Estimating Global Denial-of-Service Activity
  Speakers:
  Stefan SavageUCSD/Asta Networks; .
  David MooreCAIDA/CAIMIS; .
  Geoff VoelkerUCSD CSE; .
  

• Observations and Experiences Tracking Denial-Of-Service Attacks Across a Large Regional ISP
  Speakers:
  Rob MalanUniversity of Michigan; .
  Farnam JahanianUniversity of Michigan; .
  Jon ArnoldUniversity of Michigan; .
  Matthew SmartUniversity of Michigan; .
  Paul HowellMerit Network; .
  Russell DwarshuisMerit Network; .
  Jeff OgdenMerit Network; .
  Jon PolandMerit Network; .
  

• Observations and Experiences Tracking Denial-Of-Service Attacks Across a Large Regional ISP
  Speakers:
  Rob MalanUniversity of Michigan; .
  Farnam JahanianUniversity of Michigan; .
  Jon ArnoldUniversity of Michigan; .
  Matthew SmartUniversity of Michigan; .
  Paul HowellMerit Network; .
  Russell DwarshuisMerit Network; .
  Jeff OgdenMerit Network; .
  Jon PolandMerit Network; .
  

• Observations and Experiences Tracking Denial-Of-Service Attacks Across a Large Regional ISP
  Speakers:
  Rob MalanUniversity of Michigan; .
  Farnam JahanianUniversity of Michigan; .
  Jon ArnoldUniversity of Michigan; .
  Matthew SmartUniversity of Michigan; .
  Paul HowellMerit Network; .
  Russell DwarshuisMerit Network; .
  Jeff OgdenMerit Network; .
  Jon PolandMerit Network; .
  

• Observations and Experiences Tracking Denial-Of-Service Attacks Across a Large Regional ISP
  Speakers:
  Rob MalanUniversity of Michigan; .
  Farnam JahanianUniversity of Michigan; .
  Jon ArnoldUniversity of Michigan; .
  Matthew SmartUniversity of Michigan; .
  Paul HowellMerit Network; .
  Russell DwarshuisMerit Network; .
  Jeff OgdenMerit Network; .
  Jon PolandMerit Network; .
  

• Observations and Experiences Tracking Denial-Of-Service Attacks Across a Large Regional ISP
  Speakers:
  Rob MalanUniversity of Michigan; .
  Farnam JahanianUniversity of Michigan; .
  Jon ArnoldUniversity of Michigan; .
  Matthew SmartUniversity of Michigan; .
  Paul HowellMerit Network; .
  Russell DwarshuisMerit Network; .
  Jeff OgdenMerit Network; .
  Jon PolandMerit Network; .
  

• Observations and Experiences Tracking Denial-Of-Service Attacks Across a Large Regional ISP
  Speakers:
  Rob MalanUniversity of Michigan; .
  Farnam JahanianUniversity of Michigan; .
  Jon ArnoldUniversity of Michigan; .
  Matthew SmartUniversity of Michigan; .
  Paul HowellMerit Network; .
  Russell DwarshuisMerit Network; .
  Jeff OgdenMerit Network; .
  Jon PolandMerit Network; .
  

• Observations and Experiences Tracking Denial-Of-Service Attacks Across a Large Regional ISP
  Speakers:
  Rob MalanUniversity of Michigan; .
  Farnam JahanianUniversity of Michigan; .
  Jon ArnoldUniversity of Michigan; .
  Matthew SmartUniversity of Michigan; .
  Paul HowellMerit Network; .
  Russell DwarshuisMerit Network; .
  Jeff OgdenMerit Network; .
  Jon PolandMerit Network; .
  

• Observations and Experiences Tracking Denial-Of-Service Attacks Across a Large Regional ISP
  Speakers:
  Rob MalanUniversity of Michigan; .
  Farnam JahanianUniversity of Michigan; .
  Jon ArnoldUniversity of Michigan; .
  Matthew SmartUniversity of Michigan; .
  Paul HowellMerit Network; .
  Russell DwarshuisMerit Network; .
  Jeff OgdenMerit Network; .
  Jon PolandMerit Network; .
  

• Practical Approaches to Dealing with DDoS Attacks
  Speakers:
  Massimiliano Poletto, Mazu Networks;

• A Fine-Grained View of High-Performance Networking
  Speakers:
  Steve Casner, Packet Design; Cengiz AlaettinogluPacket Design; .
  Chia-Chee KuanPacket Design; .
  

• A Fine-Grained View of High-Performance Networking
  Speakers:
  Steve Casner, Packet Design; Cengiz AlaettinogluPacket Design; .
  Chia-Chee KuanPacket Design; .
  

• A Fine-Grained View of High-Performance Networking
  Speakers:
  Steve Casner, Packet Design; Cengiz AlaettinogluPacket Design; .
  Chia-Chee KuanPacket Design; .
  

• Some Initial Measurements of Prefix Length Phyltreing
  Speakers:
  Jennifer RexfordAT&T; .
  Steve BellovinAT&T; .
  Randy BushNone; .
  

• Some Initial Measurements of Prefix Length Phyltreing
  Speakers:
  Jennifer RexfordAT&T; .
  Steve BellovinAT&T; .
  Randy BushNone; .
  

• Some Initial Measurements of Prefix Length Phyltreing
  Speakers:
  Jennifer RexfordAT&T; .
  Steve BellovinAT&T; .
  Randy BushNone; .
  

• IPv4 Address Space Allocation and Usage Trends
  Speakers:
  Scott Marcus, Genuity;

• Progress With the DNS Security Extensions
  Speakers:
  Edward Lewis, TISlabs;

• Introduction to IP Multicast Practice
  Speakers:
  Bill Nickless, Argonne National Lab;

• SNMP Update
  Speakers:
  Jeff Case, SNMP Research International;

• More on Network Policy - Sequel to a BOF, Prelude to a Tutorial
  Speakers:
  Stephen StuartMFN; .
  

• The New IETF Sub-IP Area: A Brief Summary for Service Providers
  Speakers:
  Curtis VillamizarAvici; .
  

• MPLS Enhancements to Support Layer 2 Transport Services
  Speakers:
  Jeremy Brayley, Laurel Networks;

• Very Pleasant/Painful Networking: The Highs and Lows of Building and Maintaining VPNs
  Speakers:
  Matt Baker, Intel;

• OSPF for a Broadband Wireless Campus Backbone
  Speakers:
  Joseph Hui, Arizona State University;

• Operational Experience with IPv6 Migration
  Speakers:
  Bill ManningISI; .
  Akira KatoISI; .
  

• Operational Experience with IPv6 Migration
  Speakers:
  Bill ManningISI; .
  Akira KatoISI; .
  

• An Information Sharing and Analysis Center for the Internet
  Speakers:
  Kelly Cooper, Genuity;