CERN is running out of IPv4 network addresses. Other opportunistic resources may at some point become available to WLCG on nodes or virtual machines that only have IPv6 addresses. WLCG needs to move towards all outward facing services being run on dual-stack IPv4/IPv6 systems to support IPv6-only clients.
This one-day workshop will present the recent work by the HEPiX IPv6 working group and the related WLCG task force on preparing for this transition and discuss future plans. We also aim to provide guidance on the configuration and management of systems and sites and allow time for discussion and questions.
This workshop is primarily aimed at WLCG Tier 1 and Tier 2 system administrators. Networking staff and site management will also be very welcome as is anyone else interested from the sites, experiments or WLCG operations teams.
notes
Participants
Alastair Dewhurst
Andrea Manzi
Andrea Sciaba
Andreas Petzold
Bruno Hoeft
Christopher John Walker
Costin Grigoras
Dave Kelsey
Dimitrios Zilaskos
Duncan Rand
Edoardo Martelli
Eric Fede
Fernando Lopez
Francesco Prelz
Ian Peter Collier
Indira Kassymkhanova
Jeremy Coles
Josep Flix
Kars Ohrenberg
Lukasz Janyst
Marek Elias
Michel Jouvin
Mihai Ciubancan
Oksana Shadura
Oxana Smirnova
Raja Nandakumar
Simon C. LIN
Steve Traylen
Teodor Ivanoaica
Tony Cass
Tony Wildish
Ulf Tigerstedt
09:00
→
12:30
Session 1
09:00
Do you want to configure your laptop/portable device to use IPv6 during this workshop?20m
IPv6 hands-on
Guidance and help available
Speaker:
Edoardo Martelli(CERN)
Slides
09:20
IPv6 10120m
Speaker:
Edoardo Martelli(CERN)
Slides
09:40
Semantic differences of IPv620m
Speaker:
Francesco Prelz(Università degli Studi e INFN Milano (IT))
document
Slides
10:00
After the technical introduction - Welcome and Introduction10m
Aims of workshop
Agenda
The IPv6 working group
Speaker:
Dave Kelsey(STFC - Rutherford Appleton Lab. (GB))
Slides
10:10
IPv6 Deployment at CERN20m
Speaker:
Edoardo Martelli(CERN)
Slides
10:30
File transfer testing over IPv615m
Speaker:
DrTony Wildish(Princeton University (US))
Slides
10:45
Coffee
30m
11:15
IPv6 readiness and Configuration Guidance1h 15m
Current readiness status and advice on dual-stack configuration
WLCG Software and Tools survey10m
Speaker:
Dave Kelsey(STFC - Rutherford Appleton Lab. (GB))
Slides
DPM10m
Speaker:
Sam Skipsey(NeSC/Edinburgh University)
Slides
dCache10m
Speaker:
Ulf Tigerstedt(CSC Oy)
Slides
StoRM10m
Speaker:
Christopher John Walker(University of London (GB))
Slides
FTS310m
Speaker:
Michail Salichos(CERN)
Slides
xrootd10m
Speaker:
Lukasz Janyst(CERN)
Slides
Batch systems15m
Speaker:
Francesco Prelz(Università degli Studi e INFN Milano (IT))
document
Slides
12:30
→
14:00
Lunch break
1h 30m
14:00
→
17:30
Session 2
14:00
Experiment testing and plans45m
Including proposed use cases for use of CERN worker nodes with IPv6-only (plus local IPv4)