CCIRN topic diversity of intercontinental links Heather Boyles

CCIRN topic: diversity of intercontinental links Heather Boyles, Internet 2 heather@internet 2. edu

Topic of Coordination for CCIRN? • Should we as R&E network operators do something about achieving more diversity in our inter-continental links connecting our respective networks?

Issues • Currently no real coordination between R&E networks in procurement – often not aware of what cables others' links are being provisioned on – where multiple entities procuring for same route (e. g. Amsterdam-New York or Tokyo-LA), it could be that all of our circuits are on the same physical cable (even if procured from different vendors) – move to 'unprotected' circuits from vendors means more relying on backup with each other (e. g. JGN 2 and Trans. PAC 2, GEANT and NSF IRNC-funded links)

Questions • Can we get information from vendors about which cable our circuits are on? (yes, seems to be the answer) – How to capture that information and share? – Are there issues in sharing publicly? • Can we get those procuring circuits to consider diversity as a desirable feature or a proposal? – At what point in process is this information useful? • Is it worth the effort? How big of an issue is this? – for routed IP, maybe not: enough multiple interconnections and open transit in R&E network community that occasionally cable outages don't mean complete unreachability (see the Taiwan straits case from New Year's 2007) - maybe just need more open transit policies, routing coordination – for circuit services, maybe so: less re-routablity (since not using IP routing)?

GEANT 2 and other trans Atlantic links Courtesy: Guy Roberts, DANTE

Courtesy: Dan Nae, Cal. Tech Circuit Status NYC 111 8 th Bellport NYC-MANLAN AC-2 VSNL North VSNL NY 60 Hudson Bude Whitesands AMS-SARA Highbridge Frankfurt GVA-CERN Wal, NJ CHI-Starlight VSNL South Paris Pottington (UK) Atlantic Ocean London Global Crossing Qwest Colt GEANT Unprotected circuits (lower cost) LCG Availability requirement: 99. 95% u Service availability from provider’s offers: u Colt Target Service Availability is 99. 5% u Global Crossing guarantees Wave Availability at 98% LHC OPN Meeting, Munich u Canarie and GEANT: No Service Level Agreement (SLA) u

Vendor Usage in Atlantic • Global Crossing – – SURFnet (2) IRNC (2) (procured by SURFnet) Internet 2 CANARIE • VSNL – IEEAF – GEANT 2 – LHCnet (one on north, one on south) • FLAG – GEANT 2 • T-Systems – GEANT 2 • Qwest – LHCnet (Yellow/AC-2)

Cable Usage in the Atlantic • • • VSNL North VSNL South AC-2/Yellow FLAG Atlantic-1 (FA 1) AC-1

Pacific Diversity • George…. .