On Sun, 16 May 2021, Antonios Chariton (daknob) via 44Net wrote:
analysis of the utilization of 44/8 https://blog.daknob.net/mapping-44net/
Fantastic research work; the most interesting graphic is:
https://blog.daknob.net/content/images/2021/05/44-fullscan.png
This graphic confirm the majority of active hosts are in Central-Europe... ie. "HAMnet is most of AMPRNet"---and hence why the reassignment of 44/192.10 in 2019 was so devastating.
HAMNET accounts for over 75% of the hosts alive during the measurement,
Uniquely, with 44/8 it is possible to see "the other side of the coin": as the unanswered pings should be visible in CAIDA Network Telescope dataset, (the telescope vacuums up the remainder of the 44/8 "dark space" as a near-continious research data-source, resulting in 100s of academic research papers + PhDs):
Thus for 44/8 it should be possible to do a reverse-diff, *subtracting* the 44/8 pings in the Telescope dataset:
https://www.caida.org/catalog/datasets/telescope-near-real-time_dataset/
...should be trival to locate the sweeps performed (on 2021-05-19) in the dataset (source IPs and timestamps are known); then produce a N-diff of the resuls (ie. superimpose/stack the images using red/green/blue channels) to give the 8-way visible results:
1. HAMNet -> 44/8 no answer 2. HAMNet -> 44/8 active ping 3. HAMNet -> 44/8 no answer + found in telescope dataset 4. HAMNet -> 44/8 active ping + found in telescope dataset 5. 193.x. -> 44/8 no answer 6. 193.x. -> 44/8 active ping 7. 193.x. -> 44/8 no answer + found in telescope dataset 8. 193.x. -> 44/8 active ping + found in telescope dataset
This might show interesting patterns for eg. The Netherlands, and for Echolink proxies.
Perhaps KC Claffy (one of the ARDC + CAIDA directors) can help with getting access to the 44/8 Telescope dataset for the ping periods?
-Paul