Christian Martin - Segment Routing - Technology and Use Cases

《Christian Martin - Segment Routing - Technology and Use Cases》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、SegmentRoutingClarenceFilsfils–cf@cisco.comDistinguishedEngineerChristianMartin–martincj@cisco.comSr.Directior,Engineering©2010Ciscoand/oritsaffiliates.Allrightsreserved.1•Introduction•Technology•UseCases•Conclusion©2010Ciscoand/oritsaffiliates.Allrightsreserved.2Introduction©2

2、010Ciscoand/oritsaffiliates.Allrightsreserved.3•Makethingseasierforoperators–Improvescale,simplifyoperations–Minimizeintroductioncomplexity/disruption•Enhanceserviceofferingpotentialthroughprogrammability•LeveragetheefficientMPLSdataplanethatwehavetoday–Push,swap,pop–Maintainex

3、istinglabelstructure•LeveragealltheservicessupportedoverMPLS–Explicitrouting,FRR,VPNv4/6,VPLS,L2VPN,etc•IPv6dataplaneamust,andshouldshareparitywithMPLS©2010Ciscoand/oritsaffiliates.Allrightsreserved.4•Simplicity–lessprotocolstooperate–lessprotocolinteractionstotroubleshoot–avoi

4、ddirectedLDPsessionsbetweencorerouters–deliverautomatedFRRforanytopology•Scale–avoidmillionsoflabelsinLDPdatabase–avoidmillionsofTELSP’sinthenetwork–avoidmillionsoftunnelstoconfigure©2010Ciscoand/oritsaffiliates.Allrightsreserved.5•Applicationsmustbeabletointeractwiththenetwork

5、–cloudbaseddelivery–internetofeverything•ProgrammaticinterfacesandOrchestration–Necessarybutnotsufficient•Thenetworkmustrespondtoapplicationinteraction–Rapidly-changingapplicationrequirements–Virtualization–GuaranteedSLAandNetworkEfficiency©2010Ciscoand/oritsaffiliates.Allright

6、sreserved.6•Simpletodeployandoperate–LeverageMPLSservices&hardware–straightforwardISIS/OSPFextensiontodistributelabels–LDP/RSVPnotrequired•Provideforoptimumscalability,resiliencyandvirtualization•SDNenabled–simplenetwork,highlyprogrammable–highlyresponsive©2010Ciscoand/oritsaff

7、iliates.Allrightsreserved.7•SimpleISIS/OSPFextension•Welcomingcontribution©2010Ciscoand/oritsaffiliates.Allrightsreserved.8SegmentRouting©2010Ciscoand/oritsaffiliates.Allrightsreserved.9•Forwardingstate(segment)isestablishedbyIGP–LDPandRSVP-TEarenotrequired–Agnostictoforwarding

8、dataplane:IPv6orMPLS•MPLSDataplaneisleveragedwithoutan