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| 001 | 644532 | ||
| 005 | 20260127210158.0 | ||
| 024 | 7 | _ | |a 10.1051/epjconf/202533701260 |2 doi |
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| 100 | 1 | _ | |a Attebury, Garhan |b 0 |
| 111 | 2 | _ | |a 27th International Conference on Computing in High Energy and Nuclear Physics |g CHEP 2024 |c Krakow |d 2024-10-21 - 2024-10-25 |w Poland |
| 245 | _ | _ | |a Towards an IPv6-only WLCG: More successes in reducing IPv4 |
| 260 | _ | _ | |a Les Ulis |c 2025 |b EDP Sciences |
| 300 | _ | _ | |a 8 |
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| 520 | _ | _ | |a The Worldwide Large Hadron Collider Computing Grid (WLCG) community’s deployment of dual-stack IPv6/IPv4 on its worldwide storage infrastructure has been very successful. Dual-stack is not, however, a viable longterm solution; the HEPiX IPv6 Working Group has focused on studying where and why IPv4 is still being used, and how to flip such traffic to IPv6. The agreed end goal is to turn IPv4 off and run IPv6-only over the wide-area network to simplify both operations and security management.This paper reports our work since the CHEP2023 conference. Firstly, we present our campaign to deploy IPv6 on CPU services and Worker Nodes, with a deadline of end of June 2024. Then, the WLCG Data Challenge (DC24) performed in February 2024 was an excellent opportunity to observe the percentage of data transfers carried by IPv6. We observed the predominance of IPv6 in data transfers during DC24 and were able to understand yet more reasons for the use of IPv4 and areas for remedial action.The paper ends with the working group’s plans for moving WLCG to “IPv6- only”. One aspect of this is the possible automated use of IPv6-only clients configured with a customer-side translator, or CLAT, together with a deployment of NAT64 using what is often known as “IPv6-Mostly”, enabling IPv6-only sites to connect to non-WLCG IPv4-only services. |
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| 700 | 1 | _ | |a Babik, Marian |b 1 |
| 700 | 1 | _ | |a Bly, Martin |b 2 |
| 700 | 1 | _ | |a Buraglio, Nick |b 3 |
| 700 | 1 | _ | |a Chown, Tim |b 4 |
| 700 | 1 | _ | |a Christidis, Dimitrios |b 5 |
| 700 | 1 | _ | |a Chudoba, Jiři |b 6 |
| 700 | 1 | _ | |a DeMar, Phil |b 7 |
| 700 | 1 | _ | |a Molina, José Flix |b 8 |
| 700 | 1 | _ | |a Grigoras, Costin |b 9 |
| 700 | 1 | _ | |a Hoeft, Bruno |b 10 |
| 700 | 1 | _ | |a Ito, Hiro |b 11 |
| 700 | 1 | _ | |a Kelsey, David |0 P:(DE-HGF)0 |b 12 |e Corresponding author |
| 700 | 1 | _ | |a Martelli, Edoardo |b 13 |
| 700 | 1 | _ | |a McKee, Shawn |b 14 |
| 700 | 1 | _ | |a Moreira, Carmen Misa |b 15 |
| 700 | 1 | _ | |a Nandakumar, Raja |b 16 |
| 700 | 1 | _ | |a Ohrenberg, Kars |0 P:(DE-H253)PIP1001902 |b 17 |
| 700 | 1 | _ | |a Prelz, Francesco |b 18 |
| 700 | 1 | _ | |a Rand, Duncan |b 19 |
| 700 | 1 | _ | |a Sciabà, Andrea |b 20 |
| 700 | 1 | _ | |a Skirvin, Tim |b 21 |
| 700 | 1 | _ | |a Walker, Christopher |b 22 |
| 773 | _ | _ | |a 10.1051/epjconf/202533701260 |g Vol. 337, p. 01260 - |0 PERI:(DE-600)2595425-8 |p 01260 - |t The European physical journal / Web of Conferences |v 337 |y 2025 |x 2100-014X |
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