LHCONE R&D and RNT-WG call

Edoardo Martelli (CERN), Joe Mambretti (International Center for Advanced Internet Research Northwestern University), Marian Babik (CERN), Shawn Mc Kee (University of Michigan (US))
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Edoardo Martelli
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    • 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 

      - 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