March 2007 1ASNet – Academic Services Network

The Design of ASnetThe Design of ASnetand the support to Gridand the support to Grid

Yu-lin CHANG @ Academia SinicaYu-lin CHANG @ Academia Sinica

International Symposium on Grid ComputingInternational Symposium on Grid Computing

March 29, 2007March 29, 2007

March 2007 2ASNet – Academic Services Network

Introduction on ASnetIntroduction on ASnet

● ASnet – Academic Services NetworkASnet – Academic Services Network● Provides high-performance and high-availability Provides high-performance and high-availability

network connectivity for research and education, network connectivity for research and education, as well as generic Internet activitiesas well as generic Internet activities

● Focuses on International links and IX Focuses on International links and IX (TaipeiGigaPoP).(TaipeiGigaPoP).

● Closely collaborates with domestic RENs, such as Closely collaborates with domestic RENs, such as TAnet and TWAREN.TAnet and TWAREN.

● As evolution of technologies, network matrix is As evolution of technologies, network matrix is now part of Grid infrastructure to bring pieces to now part of Grid infrastructure to bring pieces to be one.be one.

March 2007 3ASNet – Academic Services Network

Current ASnet PoPsCurrent ASnet PoPs

• TaiwanTaiwan– Taipei, Academia Taipei, Academia

SinicaSinica– Taipei, Tech BuildingTaipei, Tech Building– Taipei, National Taipei, National

Taiwan UniversityTaiwan University(48-pairs dark fiber rings)(48-pairs dark fiber rings)

• JapanJapan– Tokyo, KDDI BuildingTokyo, KDDI Building

• SingaporeSingapore– SingAREN GIX SingAREN GIX

BuildingBuilding

• Hong KongHong Kong– Chai-wan, Mega-Chai-wan, Mega-

iAdvantage BuildingiAdvantage Building

• NetherlandsNetherlands– Amsterdam, SARAAmsterdam, SARA

• U.S.A.U.S.A.– Palo Alto, PAIX Palo Alto, PAIX

BuildingBuilding– Chicago, StarLightChicago, StarLight

March 2007 4ASNet – Academic Services Network

Current Taiwan High-speed Research LinksCurrent Taiwan High-speed Research Links

March 2007 5ASNet – Academic Services Network

Current ASnet Links (incl. Grid)Current ASnet Links (incl. Grid)

March 2007 6ASNet – Academic Services Network

T0-T1-T2 Support for LCGT0-T1-T2 Support for LCG

March 2007 7ASNet – Academic Services Network

Coming ASnet Links (incl. Grid)Coming ASnet Links (incl. Grid)

March 2007 8ASNet – Academic Services Network

ASnet mid-term design (int’l)ASnet mid-term design (int’l)

March 2007 9ASNet – Academic Services Network

Highlighted Service for GridHighlighted Service for Grid

● Partner-controlled routingPartner-controlled routing– Kind of BGP tagging mechanismKind of BGP tagging mechanism

● 9264:61100 request ASnet *LESS* prefers this route9264:61100 request ASnet *LESS* prefers this route● 9264:61200 request ASnet *MORE* prefers this route9264:61200 request ASnet *MORE* prefers this route

– exampleexample

ASnetASnet

R1R1

R2R2

PartnerPartner

def pathdef path

tag bgp routes with 9264:61200tag bgp routes with 9264:61200

path changespath changes

March 2007 10ASNet – Academic Services Network

Highlighted Service for GridHighlighted Service for Grid

● Private CircuitPrivate Circuit

– Utilizing MPLS Layer-2 techniqueUtilizing MPLS Layer-2 technique

– Separated from other customersSeparated from other customers● Keep privacyKeep privacy

● Prevent routing information influencesPrevent routing information influences

– Protected by the ASnet MPLS platformProtected by the ASnet MPLS platform● Redundancy by internal Layer-3 multi-pathRedundancy by internal Layer-3 multi-path

● Recovery by Fast-ReRoute (FRR)Recovery by Fast-ReRoute (FRR)

– Economics on deviceEconomics on device● Grid sites use pure Ethernet IP devices for connecting to ASnetGrid sites use pure Ethernet IP devices for connecting to ASnet

March 2007 11ASNet – Academic Services Network

Comments and Questions?Comments and Questions?