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Umar looking at extending the comparison IPv6 vs IPv4 ping RTTs and TCP vs ICMP/ping RTTs. See Towards Analysis of ICMP vs TCP Ping Latencies.
- Working on Validating ICMP ping measurements against TCP nping measurements.
- He has completed the measurements and analysis for SLAC, the results are zipped and take 24MBytes
- He is re-running the data for VTech.
- He has the script setup to make the IPv4 vs IPv6 measurementsIt ran to completion in 12 hours. There were 56 IPv6 addresses of whuch 14 were responding to npingSee Towards Analysis of ICMP vs TCP Ping Latencies
- Want MAs at:Umar is concentrating on understanding why there are some significant differences. He will look at the impact of the stacks (by setting up a control environment wit the latest Linux tools, and see if the difference in the stack traversals times is significant when compared to the overall RTT differences. He is also thinking of seeing if there are common elements (e.g. hops) that can be tied to significant differences in RTT time.
- SLAC and Virginia tech (Les, Umar) measurements for ping vs nping completed,
- China (Saqib has agreed to join in),
- Thailand (Charnsak has agreed to join in),
- If others wish to join the paper (i.e. make the measurements - takes just over a week elapsed time, help analyze the data and put together the paper), we need to know soon.
- Pakistan (Wajahat)?
- Malaysia-Sarawak (Johari)?
- Malaysia mainland (Adib)?
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