Transcript Document 7673127

Internet2/Abilene Perspective
Guy Almes and Ted Hanss
Internet2 Project
NASA Ames -- August 10, 1999
Applications and engineering
Applications
Motivate
Enables
Engineering
What makes this hard?
 Combination of:
• high bandwidth
• wide area
• intrinsically bursty applications
 Need for multicast
 Need for quality of service
 Need for measurements
Applications Challenges
 Raising awareness among all faculty
 Providing “services-rich” network
environment
 Supporting application developers
 Supporting deployment communities
• From packaging to ensuring end-to-end
network environment is there
Approaches
 Internet2 is a membership
participation organization
 Nothing is done in isolation
Examples
 I2-Distributed Storage Infrastructure
 I2-Digital Video
Outline of Engineering Issues
 QoS
• Low-latency very-low packet loss
 Multicast
• PIM-SparseMode, MBGP, MSDP
 Measurements
• Surveyor: One-way delay and loss
• Traffic utilization
• End to end flows with gigaPoP help
• OC3MON -- passive measurements
Measurements Perspectives
 Traffic Utilization:
• Easy, boring, but important to do well
• Periods, formats, etc.
 Active Measurements:
• very accurate one-way delay and loss
• throughput
 Passive Measurements:
• OCXmon etc
• Each monitor useful to all
Focusing In
 Remember those meritorious
applications?
 Rôle of campus, gigaPoP, and
backbone engineers in supporting
aggressive applications
The bottom line
 Supporting inter-university networking
 Supporting advanced applications
• users know apps, but not infrastructure
• expectations
 Supporting univ / gigapop / backbone / ngix
infrastructure
• multiple support organizations
• multiple kinds of engineering
• commitment to cooperative end-end solutions
More Info ...
 www.internet2.edu
 [email protected]
 [email protected]
 apps.internet2.edu/talks/
Abilene and Internet2
 Internet2 as infrastructure:
• 150+ campus LANs
• about 35 gigaPoPs
• a few interconnect backbones
 Abilene is the 2nd Backbone
• OC-48 trunks from Qwest
• Cisco 12008 routers with IP/Sonet
• OC-3 and OC-12 access to gigaPoPs
Abilene -- Sep-98
Seattle
New York
Cleveland
Sacramento
Indianapolis
Denver
Kansas City
Los Angeles
Atlanta
Houston
Abilene -- 29-Jan-99
Seattle
New York
Cleveland
Sacramento
Indianapolis
Denver
Kansas City
Los Angeles
Atlanta
Houston
Abilene -- 10-Aug-99
Seattle
New York
Cleveland
Sacramento
Indianapolis
Denver
Kansas City
Los Angeles
Atlanta
Houston
Abilene -- plus on order
Seattle
New York
Cleveland
Sacramento
Indianapolis
Denver
Kansas City
Los Angeles
Atlanta
Houston
Abilene -- plus on order plus expected
Seattle
New York
Cleveland
Sacramento
Indianapolis
Denver
Kansas City
Los Angeles
Atlanta
Houston
Summary of New Connections
 OC12: 7 now plus 4 ordered plus 3
 OC3: 11 now plus 13 ordered plus 1
 Most are IP/Sonet
 Project ratio of 1::7 in traffic
 Plus impact of routing
Multicast
 Now running PIM-SM, MBGP, MSDP
 Beginning multicast beta service
 NASA demonstration:
• CalREN2, NREN, Abilene, NGIX-Ames
• 50 Mb/s to 80 Mb/s multicast flows
• Medical application
 Emphasis of NOC and NCNE
Interconnect Issues
 NGIX effort with the NGI/Internet2 JET
• Chicago: OC3 going to OC12
• Ames: OC12
• Washington: OC12 as soon as possible
 International: StarTap plus
• Emphasize StarTap as the universal solution
• Optimize where appropriate
• Canada as an important special case