[ldm-users] Seeking upstream sponsor for leaf IDD node — passive latency measurement research

Hi all,

I’m an M.Sc. Computer Science researcher working on a thesis that
characterizes the message-delivery behavior of real-time scientific data
distribution protocols, including end-to-end latency, inter-arrival jitter,
reordering, duplication, and loss distributions under varying load. The NSF
Unidata IDD is a primary study subject because of its push-based
architecture and broad deployment across the research community.

I reached out to Unidata support, and Jennifer Oxelson directed me to this
list, since direct IDD participation is limited to sites with US-based .edu
reverse DNS. I’m based at The Open University of Israel, so I’m seeking a
volunteer US .edu site willing to act as an upstream for a single leaf node
(REQUEST-only, with no redistribution).

Requested setup:

Feedtypes: IDS|DDPLUS (primary), HDS (optional, for comparative latency
analysis across product sizes)
Role: leaf, REQUEST-only, with no downstream ALLOW entries
Host: Ubuntu 22.04, LDM 6.x latest stable, fixed IP
Measurement is fully passive: timestamps are taken at the pqact layer and
cross-correlated against an independent alternate feed (NWWS-OI XMPP) for
drift and ordering analysis

There will be no redistribution of IDD data outside the research
environment and no commercial use. The results will appear in my thesis and
any resulting academic publications, with IDD/Unidata credited according to
standard attribution practices.

If anyone has spare upstream capacity, or can point me to a site that
typically sponsors non-US academic collaborators, I would be very grateful
for an off-list reply. I’d also be happy to share the full research
proposal and methodology on request.

Thanks for considering,
Afik Menashe
M.Sc., Computer Science
The Open University of Israel