1 / 23

Internet2 Engineering Update

Internet2 Engineering Update. Guy Almes Internet2 Chief Engineer <almes@internet2.edu> Internet2 Membership Meeting Washington — 8 October 1997. Outline of the Talk. Internet2 Engineering Objectives Working Groups GigaPoP Progress Four Key Engineering Issues Large Delay-Bandwidth Products

garima
Download Presentation

Internet2 Engineering Update

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Internet2 Engineering Update • Guy AlmesInternet2 Chief Engineer<almes@internet2.edu> • Internet2 Membership MeetingWashington — 8 October 1997

  2. Outline of the Talk • Internet2 Engineering Objectives • Working Groups • GigaPoP Progress • Four Key Engineering Issues • Large Delay-Bandwidth Products • Introducing Quality of Service • Improving Multicast Support • Introducing IPv6 • Overview of Demo Network

  3. Internet2 Engineering Objectives • Enable Advanced Applications • Strengthen the Universities in their Research / Education Missions • Pioneer Specific Technical Advances • Establish GigaPoPs as Effective Service Points

  4. Applications and Engineering Applications Motivate Enables Engineering

  5. Comments on Apps and Plumbing • Advanced applications transform high-speed plumbing into value • Advanced plumbing enables advanced applications • Profligate use of bandwidth, per se, does not make an application ‘advanced’ • Megalomaniac plumbing, per se, does not make the plumbing ‘advanced’

  6. Comments on the UniversityResearch/Education Mission • Due to their teaching mission, universities scatter researchers • University faculty and students therefore have a disproportionate need to be able to collaborate at a distance

  7. u u u u Sketch of Internet2 Architecture Interconnect: connects all the gigaPoPs to each other GigaPoPs: connect universities to the Interconnect and to other services Universities: upgrade their LANs to more than 500 Mb/s gigaPoP Interconnect u gigaPoP u gigaPoP gigaPoP u u u u gigaPoP

  8. 1997 High-speed uncongested best-efforts IPv4 T3 and OC3 will be typical; some OC12 About 15 gigaPoPs; about 45 universities Introduction of Measurements 1998 Introduce Quality of Service Improve Multicast Support Introduce IPv6 1997 vs 1998 Sets of Aspirations

  9. to address project-wide technical issues minimal constraint on natural diversity of gigaPoP technical choices complementary to groups such as the IETF Working Groups

  10. IPv6: Dale Finkelson of Univ Nebraska Measurement: David Wasley of UCOP Multicast: Dave Meyer of Univ Oregon Network Mgmt: Mark Johnson of MCNC Quality of Service: Ben Teitelbaum (staff) Routing: Steve Corbato of Univ Washington Security: Peter Berger of Carnegie Mellon Topology: Paul Love (staff) Initial Working Groups

  11. DEN -- NCAR / Univ Colorado DTW -- Michnet ORD -- MREN in Chicago MSP -- in Minneapolis PHL -- MAGPI PIT -- PSC RIC -- NetworkVirginia Operational GigaPoPs

  12. ATL -- Southern Crossroads CLE -- OARnet HOU -- Rice, Texas A&M, Univ Houston etc. RDU -- NCGigaNet Coming this Month

  13. BOS -- Boston Univ, Harvard, MIT, etc. BWI -- Univ Maryland etc DCA -- WREN GNV -- FloridaNet LEX -- SEPSCoR NYC -- NYSERnet2000 (southern) SFO -- CalREN2 (northern) Coming by end of 1997

  14. BHM -- Alabama / Gulf Central BNA -- Tennessee LAX -- CalREN2 (southern) MKC -- Great Plains Network PDX -- Oregon SEA -- Washington SYR -- NYSERnet2000 (northern) Coming early in 1998

  15. Four Key Engineering Issues • Large Delay-Bandwidth Products • Introducing Quality of Service • Improving Multicast Support • Introducing IPv6

  16. Large Delay-Bandwidth Products • As the product of delay and bandwidth grows: • The number of unacknowledged packets grows • It becomes more difficult to sustain a steady stream of data from end to end • Several consequences: • Need for direct physical paths • Tradeoff between buffering and variation in delay

  17. Introducing Quality of Service • Technical: • End-to-end vs Intermediate • Host vs Proxies • Bandwidth, Delay parameters • Administrative: • Admission Control • Measurements • Authentication

  18. Improving Multicast Support • Current MBone community is small • Many advanced applications are naturally multicast • one to many (e.g., distance education) • few to few (e.g., graduate seminars or conferences) • Scaling is hard: • Optimize for transmission lines? • Optimize for packet forwarding?

  19. IPv6 Issues • Initially this will appear to be an end in itself • We hope/expect that it will become an aid to solving other problems • Compact Routing Tables • Some help for QoS, IP options • Products will be available beginning 1997

  20. International Aspect • The university community is intrinsically international • Advanced applications connect faculty/students within our (international) community • And we’ll all be buying the same technical products / services in the future

  21. Overview of Demo Network • T3 connection to the vBNS • Microcosm of gigaPoP • Microcosm of three campuses

  22. Special thanks to … MCI vBNS group Cisco, FORE, IBM Sun, Hewlett Packard, Silicon Graphics Starburst Highway1 staff GWU and Univ Maryland staff

More Related