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LHCONE - Large Hadron Collider Open Network Environment


Shared VLAN service (distributed IXP)


IP address assignement

Site AS number IPv4 address IPv6 address Announce NOC Access Point
EU-ROUTE-SERVER 20641 2001:07f8:001c:3000:0000:0002:0641:0001/64 CERNlight
CERN 513 2001:07f8:001c:3000:0000:0000:0513:0001/64 AS-CERN (RIPE) CERNlight
AM-ROUTE-SERVER 20641 2001:07f8:001c:3000:0000:0002:0641:0011/64 CERNlight
UNAM (University of Mexico) 278 2001:07f8:001c:3000:0000:0000:0278:0001/64     Starlight
CALTECH-ULTRALIGHT 32361 2001:07f8:001c:3000:0000:0003:2361:0001/64     Starlight
USLHCnet 1297 2001:07f8:001c:3000:0000:0000:1297:0001/64 CERNlight
UMICH (University of Michigan) 229 2001:07f8:001c:3000:0000:0000:0229:0001/64     Starlight
MSU (Michigan State University) 229 2001:07f8:001c:3000:0000:0000:0229:0001/64     Starlight
MIT (Massachusetts Institute of Technology) 3 2001:07f8:001c:3000:0000:0000:0003:0001/64     Starlight

Routing policies

  • Every member of the shared VLAN should peer with all the route servers
  • The route servers accept only the prefixes declared by the member
  • The route servers announce all the learnt routes to any member
  • Routing policies are declared in the AS20641 aut-num object defined in the RIPE database
  • BGP configuration examples for peering with the route server


Current VLANs

site ASorted ascending Site B Vlan ID LHCONE nodes involved
CERN TIFR 2106 Netherlight, CERNlight
CERN University of Geneva 257 CERNlight
FNAL TIFR 2499 Netherlight, CERNlight, USLHCnet, Starlight

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Topic revision: r16 - 2011-05-05 - EdoardoMARTELLI
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