LHCONE R&D and RNT-WG call

Europe/Zurich
Edoardo Martelli (CERN), Joe Mambretti (International Center for Advanced Internet Research Northwestern University), Marian Babik (CERN), Shawn Mc Kee (University of Michigan (US))
Videoconference
Zoom Meeting ID
97610360540
Host
Edoardo Martelli
Useful links
Join via phone
Zoom URL
    • 5:00 PM 5:20 PM
      Preparation of SC23 demos and DC24 mini-challenges 20m
    • 5:20 PM 5:40 PM
      RNTWG 20m

      SC23 was a success - thanks everyone for your help !
      - Packet marking @300Gbps (see screenshots attached)
      - Tested integration with ESnet high-touch service, dataset to be published later this week (screenshots of Scitags dashboard attached )
      - InMon: SFlow-RT worked fine and we have also developed a new dashboard showing flow labeling 

      - New dashboard showing summary from the fireflies data from production storage (UNL):
      .   - SC23 instance is at (but might no longer be accessible): https://itcs-p4srv-01.cern.ch/d/b8dddac0-5b24-4739-9c8d-e88a05c1344f/scientific-network-tags-rande-dashboard?orgId=1
          - To be moved to ESnet Grafana instance 
       

      Developments:
      - flowd - developed support for packet marking on multiple NICs (tested succesfully @ SC23)
          - plan to create separate packages for flow labeling and packet marking (flowd and flowd-ebpf) - different deps + EPEL requirements
          - following SC23 tests will re-work the way fireflies are processed and how additional data is added
      - xrootd http-tpc support was released
      - fts, rucio and gfal2 are ready - waiting for deployment (hopefully before DC24)

       

      Packet pacing meeting an hour ago (https://indico.cern.ch/event/1347655/)
      - Testbed Google sheet ready - please request access and add nodes that will participate
      - Testbed commisioning will start soon 
            - Idea is to come up with list of changes to be done following an initial check of the testbed 
            - e.g. check if BBR can be enabled,  check if perfSONAR commands work (with related changes)
            - Develop a script that can check config (and sysctl parameters) that anyone can run before/after submitting tests (TBD)
            - Test coordination - looking for test coordinator for each (or multiple) week(s) - first come first served !
      - ESnet high-touch testing - would likely require a CSV file to be sent in advance with start/end, src/dst (maybe ports ?) and traceroute in order to be able to start data collection
            - High-touch produces pcap files that would need to be analysed further (we're looking for volunteers; python's pandas/polars + jupyterhub; data will be in apache arrow / feather format)

       

    • 5:40 PM 5:55 PM
      AOB 15m
    • 5:55 PM 6:00 PM
      Next meeting 5m