Transcript Abilene Network

Abilene update and
Internet2 Network of the
Future
Southern Illinois University
Internet2 Day
Steve Corbató, Director of Backbone Network Infrastructure
25 April 2001
Outline
Abilene Network – current status
Internet2 End-to-End Performance Initiative
Advanced infrastructure directions
Internet2 Network of the Future
An analogue with the oil industry…
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Advanced U.S. research university
connectivity requirements
• Research testbed
• configurable, breakable, measurable infrastructure
• serving computer science research and advanced engineering
• traditional province of DARPA
• Advanced service/application deployment network
• standards based, 7x24 operation expectation (NSFnetvBNS
Abilene)
• National education intranet
• interconnecting all K-20 educational institutions/networks to
enable applications and services unavailable over the
commercial Internet
• Commercial entities (high performance connectivity)
• providers of content of value to EDU (e.g., Nexis-Lexis, Akamai)
• EDU-related startups (genomics, network performance/mgmt)
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Unique features of Internet2 environment
• Per capita available bandwidth O(10-100) higher than over
the commercial Internet
• TCP flows of 0.5 Gbps possible
• Active advanced service deployment efforts
• Native multicast most widely deployed
• Commitment to open network management and active
measurement
• Collaborative relationship with GigaPoPs and research
university campus technical communities
• Commitment to the original end-to-end architecture vision
• Emphasis on end-to-end performance: measurement and
assurance
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Abilene
• A high-performance Internet2 national backbone dedicated
to the support of advanced Internet application and service
development within the U.S. research university community
and in collaboration with its partners - including federal and
corporate laboratories, international research & education
networks, and the broader American educational community
• A partnership of UCAID, Cisco Systems, Nortel, Qwest
Communications, Indiana University, and two Internet2 Test
and Evaluation Centers in Ohio and North Carolina
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Qwest acquisition of U S WEST
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Abilene – April, 2001
• Inflection point in network development
• OC-48c (2.5 Gbps) IP-over-SONET backbone
• 52 current and pending connections in 33 states
– Two OC-48c connections: P/NW and SoX
– 16 connections at OC-12c or higher
• 185 participants in 48 states and D.C.
• Ongoing strong partnership
– Cisco, Nortel, Qwest, Indiana Univ., ITECs (NC and OH)
• Increasing backbone utilization
• Characteristic exponential growth
• O(OC-12c) peak utilization on some links
• Traffic doubling time: 7 months
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Abilene Core – autumn 2000
Seattle
New York
Indianapolis
Sacramento
Cleveland
Washington
Denver
Kansas City
Los Angeles
Atlanta
Houston
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Abilene connection fees (annual)
Previous
New
OC-3c
$110,000
($110,000) SONET & ATM
OC-12c
$320,000
$270,000 SONET
$280,000 ATM/1 PVC &
1 BGP peering
$290,000 ATM
OC-48c
$495,000
$430,000 SONET
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Abilene participation categories
Regular Member Participant
• University member of Internet2
Collaboration Site
• Affiliate or corporate member of Internet2
Sponsored participant
• University member sponsors collaborating affiliate with advanced
networking requirement
Sponsored Education Group Participant
• University member sponsors educational aggregate network
(ususally, a state network)
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Sponsored Education Group
Participation
• In November, 2000, the Abilene Conditions of Use
(CoU) were modified
• Effective January 15, 2001, a networked aggregate of
educational institutions may gain access to Abilene as
a Sponsored Education Group Participant.
• designed primarily to accommodate existing and emerging statebased education networks
• This new class of Abilene participation supplements
the existing classes of Member Participant,
Collaboration Site, and Sponsored Participant
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Sponsored Education Group
Participation - status
State education networks approved (8)
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California (CalREN-2)
Michigan (Merit)
Missouri (Great Plains Network)
Oklahoma (OneNet)
Oregon (Oregon GigaPoP)
Rhode Island (Northern Crossroads - NOX)
Virginia (Mid-Atlantic Crossroads – MAX)
Washington (Pacific/Northwest GigaPoP)
Additional states in review process (4)
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Georgia
Indiana
Ohio
Pennsylvania
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Abilene International Peering and
International Transit Network (ITN)
STTL
CA*net3, (AARnet)
APAN/TransPAC, Ca*net3, CERN, CERnet, IUCC,
NORDUnet, RENATER, REUNA2, SURFnet,
SingAREN, SINET, TAnet2 , (ANSP, HARnet?)
OC12
SNVA
NYCM
TEN-155*,
JANET,
NORDUnet,
SURFnet CA*net3
(HEAnet)
(SINET,
GEMNET)
LOSA
SingAREN, SINET
CALREN2
CUDI
AmPATH
UT El Paso
OC3-12
(REUNA2, RNP2,
RETINA?)
(CUDI)
* ARNES, BELNET, CESnet, DFN, GRNET, HEAnet, RESTENA, SWITCH, HUNGARNET,
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GARR-B, POL-34, RCCN, RedIRIS
Advanced services on Abilene
Multicast
IPv6
Measurement
Quality of service (QoS)
IETF Differentiated Services model
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Advanced services - Multicast
Abilene is a leading backbone globally in aggressive
protocol deployment (MBGP, MSDP, PIM-Sparse, SSM)
Early detection of the Ramen worm
Deployment
72% of BGP peerings are multicast-enabled
Peering at MIX (NASA Ames) and soon elsewhere
However, multicast remains an experimental service
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Advanced services – IPv6
Overlay network of Cisco 7206 routers
• Collaboration between Abilene NOC and I2 v6 WG
• Initial ARIN address allocation received
• Planning for v6-only peering with WIDE (Sunnyvale)
Is v6’s time coming in the U.S.?
• wireless,
• End-to-End Architecture
• International deployment efforts
Watch this space…
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Advanced services - Measurement
Open network measurement stance
Active measurement: Surveyor
Traffic characterization project: Ohio ITEC
• Source/destination matrix, traffic types
Requested measurement services
Passive measurement (MOAT)
Off-net Netflow feeds
Will play a strategic role in End-to-End Performance Initiative
NOC and Measurement WG
DDoS detection testbed (Asta Networks)
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End-to-End (e2e) Performance
Initiative
Human to Human Collaboration Experience
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User perception
EYEBALL
Application
CORE APPLICATION
Operating system
Host IP stack
STACK
Host network card
Local Area Network (LAN) JACK
Campus backbone network
Campus connection to regional network/GigaPoP
GigaPoP connection to Internet2 national backbone
International connections
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Internet2 End-to-End Performance
Initiative
• Extending focus from raw connectivity to the actual performance
experienced by the campus end user
• e2e will address all obstacles to performance
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Application readiness and tuning
End system operating systems and networking support
Local Area Network and campus backbone upgrades
Outreach to end users and campus support teams
• Widely distributed, pro-active measurement
• Performance Evaluation and Response Function (PERF)
• Hybrid of Network Operations Center and Applications Support Team
• Knowledge database and associated tools
• Phased approach
• Design team report completed – February, 2001
• Call for Participation to be released soon
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Defining E2E Performance Success
Metrics
• Selecting set of appropriate core applications and services
• TCP applications – e.g., Web, file transfer
• Internet-based telephony (VoIP)
• Internet-based videoconferencing
– Multiple technologies with distinct service levels
• Pervasive multicast for multimedia and data distribution
• Scope
• How broadly across the campus network should e2e be
supported?
• Timing
• How quickly can these goals be met?
• End user expectation management essential
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New technology drivers – carrier
hotels
Facilities that permit interconnection of telecom carriers
Necessary components
• critical mass of fiber-based carriers (national, local)
• common fiber interconnection facilities
• riser space
Facilitate peering of ISPs
• local exchange point
Legacy hotels
• 60 Hudson (NYC), One Wilshire (LA), Westin Bldg (SEA)
New purpose-built facilities under construction
• NAP of the Americas (MIA)
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New technology drivers – optical
Aggressive period of fiber construction on the national &
metro scales
• Every conceivable right-of-way being explored and/or excavated
Many campuses and GigaPoPs have or are pursuing fiber
• University of Washington metro fiber project
• CENIC Optical Networking Initiative
Dense Wave Division Multiplexing (DWDM)
• Allows the provisioning of multiple channels (’s) over distinct
wavelengths on the same fiber pair
• Now over 100 channels supported (100xOC-192c is 1 Tbps!)
• Still very expensive on the national scale
– Amplification required and also repeaters (OEO) until ULR
• C(oarse)WDM is a cheaper alternative in metro areas
Optical switching
• Technology on the horizon
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Telephony’s recent past (from an
IP perspective)
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IP Networking (and telephony)
in the not so distant future
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Gigapop Transport Options:
Topics for future discussion
• RoW, conduit, dark & dim fiber, ’s
• IRU arrangements
• Optical technologies (amps, repeaters, DWDM, optical
switching)
• DWDM interoperability
• 10 Gigabit Ethernet vs. OC-192c
• Strategic carrier hotel development
• Colocation for interconnection, peering (not data centers)
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Network of the Future: architecture
Initial Internet2 architecture defined – January, 1997
Four components
• National backbones
– optical networking - amplification and regeneration
• GigaPoPs
– regional fiber initiatives
• Campuses
– ubiquity (wireless)
– high performance (wired)
• Advanced services
– roles of IPv6 and QoS
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Next steps for Abilene
Continuing advanced service deployment
Playing our part in E2E Performance Initiative
Ongoing planning for Network of the Future
Close collaboration with the Gigapops and new fiber
initiatives
Expanding access to broader education community in
support of advanced networking
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For more information
www.internet2.edu/abilene
www.internet2.edu/e2eperf
[email protected]
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