Transcript The State of Networking World

The State of the Research
Networking World
Thom Stone
May 2002
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Topics
• Technology and HPRENs
• Areas
–
–
–
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North America
Europe
Asia
South America
Africa
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Technology Updates
• Wide area Ethernet
– Resilient Packet Ring
– Gig-E and 10 Gig Ethernet connections over
wavelengths (SURFNET had a little Lambda)
• New NREN
• “Distributed StarTAP”
• StarLIGHT
• The “great technology dying”
• Western Europe and Asia/Pacific march ahead, South
America takes some steps, Africa lags
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Beating the Standards
• Europe rolling out 10 Gig Ethernet over the
wide area, Canada switches Lambda and US
follows
• ATM and SONET are becoming passé
• Resilient Packet Ring Standard (RPR802.17) brings protection, fast convergence
• RPR is IP centric
• Pure Lambda switching is next
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New NREN Backbone
Up and Working
• OC-12 ATM core with some OC-3 tail
circuits
• Connected to StarLIGHT (optical) in
Chicago for international peering
• NREN and NPN share bandwidth - NREN
for Network Research, NPN for application
prototyping. Three-tier HPREN model
(NISN, NPN, NREN)
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NREN Network Architecture
NGIX-Chi
ARC/NGIX-West
JPL
Future sites (dashed lines)
NREN Sites OC-12ATM
Hybrid Ground Station (35 Mbps)
GRC
NGIX-East
GSFC
HQ
NASA WAN
Testbed
MSFC
Office of the Future
Grand Challenge Applications
Earth Sciences Spacecraft
Distributed StarTAP
• Allow for Non-US networks to terminate at
coastal locations and use “International Transit
Service” (ITN) to proxy peer via Abilene to
STARTAP
• Thai network (UNINET) lands at L.A.,South
American networks (AMPATH) land in Miami
• Abilene does not allow for FEDNET peering to
ITN sites
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International HPRENs
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StarLIGHT
• New optical peering point in Chicago
• Experimental optical switching
• Very high speed connections—Gig-E
or higher
• Will carry transit from StarTAP
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The Technology/Telecom Slump
• Global Crossing gone and other IRCs in
danger. Do not know how this will affect
AMPATH or other transoceanic connections
• Fiber switching, advanced routing,
Wide/Metro area Ethernet companies all go
into bankruptcy. Many established
companies in trouble or pulling back
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CAnet*4 the Optical Avatar
• Canarie is the leader in all optical networks
and switching
• DWDM backbone
• New protocols such as Optical Border
Gateway Protocol
• Provide transit for other networks
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Europe Does Gig
• TERENA - GEANT supercedes 10-155.
10 Gig-E Lambda backbone for Europe
• Dutch SURFNET lights the Atlantic
– 10 Gig-E IP over Lambda terrestrial backbone
– Connection to StarTAP at 622 Mb/sec (OC-12)
– Dual connection to StarLIGHT at GIG-E speed
• Teleglobe and Global Crossing
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SuperJanet - Rule Britannica
• Last month bought up two 2.5 Gig
(OC-48 POS) links to US.
Abilene, ESNET share one.
• Also OC-48 POS to GEANT
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Eastern Europe Attempts
HPRENS
• CEENET Central and Eastern European
Networking Association
– 26 Country networks
– Low-speed connections to the outside
– Russia - FASTnet connected to StarTAP at
OC-3 (Jan. 2002)
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Asia Pacific
• AARNET
– Current ATM backbone, going to 10 G-E in the near
future
– Dual 155 Mb/sec (OC-3) SONET links to the US
• APAN
– Dual OC-12 circuits to Chicago. One POS one ATM
• Singapore (SINGAREN)
– ATM National backbone 27 Mb/sec ATM to
ABILENE/StarTAP
• Malaysia (TEMAN)
– ATM backbone -Satellite Link to US networks
• Thailand (UNINET)
– ATM backbone- 17 Mb/sec connection to Abilene ITN at L.A.
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More Asia Pacific
• Philippine Research, Education,
Government Information Network
(PREGINET)
– ATM network In planning- Connects now via
APAN
• CERNET- China Research and Education
Network- OC-48 POS backbone connects to
other China Academic networks
• Networks for HK, Taiwan, Korea, etc.
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AMPATH - HPRENS for South
America
• Florida International University, Global
Crossing, Cisco team to bring High Speed
connectivity to networks in South America
• DS-3 ATM links, routers in a ring around
South America
• Eleven connections now up
• What will the demise of Global Crossing
do?
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Africa Bleak Outlook
• UNEP satellite based network
decommissioned this year
• National Library of Medicine network being
redesigned
• Uninet, the South African network has no
external connectivity
• The UN is going to hold sessions concerning
the lack of Internet resources in Africa
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Conclusion
• High-speed connections are here.
Applications and protocols may not be
ready for them. TCP performance is limited
on single flows.
• The current economic downturn could have
a negative impact in the next period. New
technologies may not emerge as fast as they
have in the past.
• The problem of the “have not” areas must
be addressed.
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