Embed Size (px)
Citation preview
Abilene update and Internet2 Network of the Future
Southern Illinois University
Internet2 Day
Steve Corbató, Director of Backbone Network Infrastructure
25 April 2001
2
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…
3
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 (NSFnetvBNS
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)
4
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
5
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
6
Qwest acquisition of U S WEST
7
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
8
Seattle
Kansas City
Denver
Cleveland
New York
Atlanta
Houston
Abilene Core – autumn 2000
Sacramento
Los Angeles
Denver
Indianapolis
Washington
9
10
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
11
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)
12
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 state-based education networks
• This new class of Abilene participation supplements the existing classes of Member Participant, Collaboration Site, and Sponsored Participant
13
Sponsored Education Group Participation - statusState education networks approved (8)
• 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)• Georgia• Indiana• Ohio• Pennsylvania
14
Abilene International Peering and International Transit Network (ITN)
APAN/TransPAC, Ca*net3, CERN, CERnet, IUCC, NORDUnet, RENATER, REUNA2, SURFnet, SingAREN, SINET, TAnet2 , (ANSP, HARnet?)
OC12 NYCMTEN-155*,
JANET, NORDUnet,
SURFnet CA*net3(HEAnet)
STTLCA*net3, (AARnet)
SNVA(SINET, GEMNET)
LOSASingAREN, SINET
AmPATH(REUNA2, RNP2, RETINA?)
OC3-12UT El Paso(CUDI)
CALREN2CUDI
* ARNES, BELNET, CESnet, DFN, GRNET, HEAnet, RESTENA, SWITCH, HUNGARNET, GARR-B, POL-34, RCCN, RedIRIS
15
Advanced services on Abilene
Multicast
IPv6
Measurement
Quality of service (QoS)
IETF Differentiated Services model
16
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
17
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…
18
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)
19
End-to-End (e2e) PerformanceInitiativeHuman to Human Collaboration Experience
• 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
20
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• 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
21
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
22
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)
23
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
24
Telephony’s recent past (from an IP perspective)
25
IP Networking (and telephony) in the not so distant future
26
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)
27
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
28
29
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
