The production deployment of IPv6 on WLCG

• Published in: Journal of physics. Conference series 2015-01, Vol.664 (5), p.52018
• Main Authors: Bernier, J, Campana, S, Chadwick, K, Chudoba, J, Dewhurst, A, Eliáš, M, Fayer, S, Finnern, T, Grigoras, C, Hartmann, T, Hoeft, B, Idiculla, T, Kelsey, D P, Muñoz, F López, Macmahon, E, Martelli, E, Millar, A P, Nandakumar, R, Ohrenberg, K, Prelz, F, Rand, D, Sciabà, A, Tigerstedt, U, Voicu, R, Walker, C J, Wildish, T
• Format: Article
• Language: English
• Subjects: IP (Internet Protocol); Nodes; Physics; Virtual environments; Working groups
• ISSN: 1742-6588; 1742-6596
• DOI: 10.1088/1742-6596/664/5/052018

The world is rapidly running out of IPv4 addresses; the number of IPv6 end systems connected to the internet is increasing; WLCG and the LHC experiments may soon have access to worker nodes and/or virtual machines (VMs) possessing only an IPv6 routable address. The HEPiX IPv6 Working Group has been investigating, testing and planning for dual-stack services on WLCG for several years. Following feedback from our working group, many of the storage technologies in use on WLCG have recently been made IPv6-capable. This paper presents the IPv6 requirements, tests and plans of the LHC experiments together with the tests performed on the group's IPv6 test-bed. This is primarily aimed at IPv6-only worker nodes or VMs accessing several different implementations of a global dual-stack federated storage service. Finally the plans for deployment of production dual-stack WLCG services are presented.