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Internet2 Network Infrastructure Overview

An overview of the Internet2 network infrastructure, including information on the layers, services, and connectivity options.

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Internet2 Network Infrastructure Overview

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  1. Network Update Steve Cotter Director, Network Services TNC2007, Copenhagen May 22, 2007

  2. Internet2 Network Infrastructure Overview • Layer 1: Managed wavelengths from Level(3) Communications • Level(3) owns and manages Infinera optical gear: responsible for software upgrades, equipment maintenance, remote hands, sparing, NOC services • Internet2 NOC has total provisioning control • Layer 2: Internet2 owned and managed Ciena CoreDirectors • Using DRAGON GMPLS control plane • Layer 3: Internet2 owned and managed Juniper T640s • Expanded Observatory • Platform for layer 1/3 network performance data collection, collocation, experimentation • perfSONAR integration for intra- & inter-network performance analysis • International connectivity • Layer 1 network extended to international exchange points in Seattle, Chicago and New York City • Peering points in Seattle, PAIX, Equinix Chicago

  3. Phase 4A May 18 Complete Phase 1 Complete Phase 2 March 2 Complete Phase 3A April 19 Complete Phase 4B June 12 Phase 3B April 27 Complete

  4. Internet2 Network Flexible Infrastructure Supporting e-Science, Network Research & Education • Dedicated point-to-point wavelength services • Dynamic Circuit Service • Point-to-point Ethernet (VLAN) Framed SONET Circuit • Point-to-point SONET Circuit • Bandwidth provisioning available in 50 Mbps increments • Best-effort high-speed IP Service • Enables delivery of advanced content, commodity services, etc. • Physical Connection • 1 or 10 Gigabit Ethernet • OC-192 SONET

  5. Internet2 Network Dynamic Circuit Services • Connection Oriented Services provide for: • Guaranteed bandwidth (predictable, repeatable, dependable performance between collaborating sites) • Traffic segregation (support specific policy or traffic engineering requirements) • Router bypass: Express links created for high-bandwidth, limited duration long-haul traffic reducing the need for mid-path L3 interfaces • Cost efficiency: L3 router blades cost > L2 ports > L1 or L0 interfaces • Capability tradeoff but could possibly improve performance • Automated dynamic circuit services enable rapid provisioning and efficient utilization of capital investment • Establishing end-to-end lightpaths is a non-trivial task: it is resource intensive and error prone • Automated reservation, allocation, and provisioning enables co-scheduling of network and non-network resources.

  6. Multi-Service/Domain/Layer/Vendor Provisioning • Multi-Domain Provisioning • Interdomain ENNI (Web Service and OIF/GMPLS) • Multi-domain, multi-stage path computation process • AAA • Scheduling GEANT TDM GUI Internet2 Network Regional Network Regional Network XML AST Dynamic Ethernet Dynamic Ethernet TDM Domain Controller ESNet Data Plane Ctrl Element Control Plane Adjacency Ethernet LSP IP Network (MPLS, L2VPN) SONET Switch Router Slide from Tom Lehman, ISI-East

  7. Internet2 Network Dynamic Circuit Services Applications • Create private networks between key collaborating sites within a science community or on a project-by-project basis. Examples: • Radio Astronomy community sharing telescopes and correlation facilities • High Energy Physics community distributing large data sets • Smaller projects may link data repositories and computational resources among key participants – e.g. grid portals • Network engineering and operations community can use these capabilities to support traffic engineering objectives • We expect applications will use these circuit services to carry high-bandwidth, limited duration flows and will retain use of IP links for generic Internet access.

  8. VLSR VLSR VLSR VLSR Example: E-VLBI Application Specific Network Globally Distributed, Unified Storage Clusters Mark 5 Correlator/Compute Cluster Sensors Global R&E Hybrid Infrastructure Mark 5 Analysis station Slide from Jerry Sobieski, MAX

  9. Collaborations • The DICE group - Dante (GEANT2), Internet2, CANARIE, and ESnet • Working closely with ESnet on interfacing OSCARS and HOPI - involves AAA work, using OSCARS interface • “Stitching” project to describe data layer interconnections between segments of a PTP path • Reporting back progress to the GLIF and other organizations • For example, Phosphorus, in coordination with the SURFnet and University of Amsterdam participants • Also having discussions with JGN2 • Coordinating with OGF on various schema - topology, path computation, signaling • Working with the appropriate standards bodies - ITU, IETF, and OIF

  10. For more information:http://www.internet2.edu/network/http://i2net.blogspot.comscotter@internet2.eduThank you!

  11. MAN LAN Exchange Point32 Avenue of the Americas, NYC • Layer 2: Cisco 6513 Ethernet switch for IPv4/v6 peering with 1GigE & 10 GigE interfaces • Layer 1: TDM based optical equipment (SONET / Ethernet interfaces) • Cisco 15454 • Nortel OME 6500 • Nortel HDX • MAN LAN website:http://networks.internet2.edu/manlan/

  12. Trans-Atlantic Connectivity

  13. Trans-Pacific Connectivity

  14. Americas Connectivity

  15. Need more work on AAA, Scheduling AAA AAA AAA GUI AST A A XML A A 3 3 1 2 5 Provisioning Flow Domain Controller Domain Controller Domain Controller Flexible Edge Mappings (port(s), tag, untag) 4 NARB VLSR RON Dynamic Infrastructure Ethernet VLAN RON Dynamic Infrastructure Ethernet VLAN A. Abstracted topology exchange Internet2 DCS Ethernet Mapped SONET 1. Service Request 2. Path Computation Request 3. Recursive Per Domain Path Computation/Scheduling Processing 4. Path Computation/Scheduling Response (loose hop route object returned) 5. Service Instantiation (Signaling)

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