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Proposal: A new LHCONE core architecture Gerben van Malenstein Amsterdam, the Netherlands – December 1-2, 2011 LHCONE Architecture WG Approach • Current LHCONE implementation hard to debug, needs re-design to be future-proof • Discussion SURFnet, SARA NRG, NL-T1 • This presentation based on proposal sent to LHCONE architecture working group mailing list: 2 proposals, 1 appendix • Timelines also TBD, proposals are on a 2+ year timeline LHCONE Multipoint Service Based on hybrid Layer 2 and Layer 3 infrastructure Connector w/additional switch Connector Switching Aggregator Appendix – Not a proposal! Connector LHCONE Core Connector Domain A Routing Aggregator Domain B Connector Domain C Connector Domain D Connector Connector • Not adding anything essentially new to the existing IP interconnectivity of the current networks • Because of routers present inside the LHCONE core, (new) tiers will not benefit from the lowest equipment cost, compared to a layer 2 solution Scenario A LHCONE Multipoint Service Based on Shortest Path Bridging Connector w/additional switch Connector Switching Aggregator Connector LHCONE Core Connector Domain A Routing Aggregator Domain B Connector Domain C Connector Domain D Connector • Connector Ethernet domain using the IEEE 802.1aq (Shortest Path Bridging) protocol or the TRILL (Transparent Interconnect of Lots of Links) protocol, possibly implemented through OpenFlow; Ethernet OAM available • Needs feasibility study, research (see Worddoc sent to the list), milestones LHCONE Point-to-point Service Based on dynamic lightpaths and NSI Connector w/additional switch Connector Scenario B Switching Aggregator Connector Domain E NRM LHCONE Core Connector Routing Aggregator Domain A Domain B Domain B NRM Domain A NRM NSI Connector Domain C NRM Domain C Connector Domain D NRM Domain D Connector Connector • Multiple domains that are connected to each other by Ethernet connections. On top of this infrastructure, dynamic VLANs enable point-to-point connections on a per-VLAN basis • Network Service Interface (NSI) through Network Service Agent(s) (NSA) Thank you! Gerben van Malenstein [email protected]