EJFAT EPSCI Meeting Apr. 6, 2022

The meeting time is 2:00pm.

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Meeting URL
https://jlab-org.zoomgov.com/j/1612038101?pwd=Yk96QUcyT1NDVTRRUGNtOFVSSTdaUT09&from=addon

Meeting ID
161 203 8101

Passcode
378382

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Agenda:

• Previous meeting

• Situation:
  • Testing with End-to-end EJFAT ERSAP solution on FPGA LB
  • Jumbo Frames - indra-s2,s3, alkaid, fpga
  • Linux IP stack buffer size increased
  • Using script based LB Control Plane
  • Control Plane Gratuitous Arp cache updating (Scapy)
  • Benchmarking
  • Successfully Testing Calendar Epoch Advances
  • RT2022 - April 08 submission - August Conference
• Pending:
  • Compute Equip.- ETA 1 June
  • Networking Equip. - ETA 1 July
  • Support C libraries for LB Host Control Plane
  • ESnet smartnic open-source GitHub repo (April)
  • ESnet private, forkable Jlab P4 and simulations GitHub repo (April)
  • Data_id <-> reassembly port mapping
• To Do:
  • Near Term:
    • Hall-B has an old version of the firmware, so VTP will send TCP (no UDP). Could intercept and resend UDP VTP streams (12 streams, if we get 3 crates) to how LB can handle 12 ID's and do effectively an aggregation.
    • C-based control plane
      • Feedback from Compute hosts design
      • Control Plane daemon for compute host
  • Downstream:
    • DPDK
    • P4 enhancements for ipv4/6 ping, arp
    • IPV6 testing
    • EJFAT Subnet
    • HOSS Hall-D EJFAT use case
      • parallelize writing of raw data files
      • distribute raw data across multiple compute nodes for calibration skims
• AOT

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