HEPiX IPv6 Working Group - meeting #28 (Vidyo) 13 June 2013 Present: Keith Chadwick, Thomas Finnern, Bruno Hoeft, Dave Kelsey (Chair), Fernando Lopez Munoz, Edoardo Martelli, Mark Mitchell, Andreas Pfeifer, Francesco Prelz, Sabah Salih, Andrea Sciaba, Ramiro Voicu, Tony Wildish. Apologies: Simone Campana, Kars Ohrenberg, Duncan Rand. 1. Dave welcomed all to the meeting, particularly Andrea who is from WLCG operations at CERN. The agenda was agreed. 2. Review of actions. ACTION 27.1 Edoardo to add details of problems with large OSPF packets at CERN to our wiki/site config/knowledgebase. It is already on the CERN IPv6 knowledge base. See: http://ipv6.web.cern.ch/content/ospfv3-neighbor-stuck-loading. Ongoing. Edoardo will add to the HEPiX wiki. ACTION 27.2 Mark to contact Francesco re CREAM-CE tests. Ongoing. Glasgow only recently fixed its DNS problems. ACTION 27.3 Mark, TomasK and Tony to take CMS data transfers over DPM testing forward. Ongoing. There are still problems with use of MySQL in DPM (which FZU have fixed). ACTION 27.4 Edoardo to investigate colour-coding on the IPv6 compliance testing web. Ongoing. 3. Roundtable updates. CERN. OSPFv3. Edoardo reports that the work around for their OSPF problems is to configure jumbo frames. The RFC for OSPFv3 is not clear and different manufacturers can interpret this differently. CERN will upgrade all routers this coming weekend so that IPv6 can be deployed everywhere over the next 2 to 3 weeks. Static DHCPv6 service is working. Volunteers are welcome to try it. The dynamic service is expected in July. Glasgow. Mark reports that the DNS problems are now solved. The site needs an additional DNS server for Janet(UK). They will add more systems to their mini-cluster soon. They are testing Puppet V3 on their cluster and it seems to work OK. DESY. Thomas reports that an upgrade has been applied to their network management systems and so they now have support for IPv6 DHCPv6. Kars reported by email that their dCache team is currently working on some IPv6 problems on hepix02.desy.de and that their Grid-Team is also considering to set up a small IPv6 cluster for 'real' tests. PIC. Fernando reports that they have started to deploy jumbo frames in IPv6 peering with their NREN. But there are problems with their firewall which cannot cope with jumbo frames. Edoardo comments that CERN is only configuring jumbo frames for IPv6 and not IPv4 (one of the advantages to be had by moving to IPv6). KIT. Bruno reports that there has been little progress on their IPv6 testing cluster. FNAL. Keith reports no progress at FNAL. It is acknowledged that having distant clusters in the testbed will be useful. IHEP in Beijing is a possible for this. They will attend the July meeting at CERN. 4. IPv6 testing. Tony had already informed us by email of the latest status of the data transfer tests and that we have now transferred more than 1 PB of data. The next PB will take 2 months. 10 sites are currently involved. CERN is not but will hopefully be fixed within 24 hours. Tony reports that he has yet to test DPM. He has started doing the coding but the actual endpoints are needed (with ssh access to a local VO Box for configuration). Mark reports that he has spoken to local ATLAS people but has not yet made any progress with testing production monte-carlo. There is nothing to report from LHCb testing. 5. Edoardo gives a demo of the current HEPiX web site at CERN. He has moved some of the content from the HEPiX wiki, e.g. the testbed configuration and tables. He has also added the Knowledgebase and shows how to add new content. The implementation template is configured as a "book" with the ability to add "chapters" and "pages". Edoardo invites people to look and provide feedback. http://cern.ch/hepix-ipv6 6. AOB We agreed to add Jumbo Frames as a topic for the next F2F meeting. Next meetings: 4-5 July 2103 next f2f meeting at CERN. Notes by Dave Kelsey. 4 July 2013