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Amity (Updated 5/3/2018)
- Their PingER MA is up and running and we are successfully gathering data. We are working on the reliability.
They have made progress on the Android version of the PingER MA.
- They now automatically get the updated Beacon list
- We are looking at how to store the data and set up a proxy
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Umar and Charnsak are working on making measurements from UBRU comparing ping/ICMP vs TCP RTTs. Just finished running yesterday after 4 days.
Charnsak is looking at a host in Chan Parsa province in Laos as a potential site for a PingER MA.
Charnsak would like to have write access to parts of the PingER Wiki site. Les will investigate how this may be accomplished.
Les is pursuing the possibility of an MoU with SLAC legal, the legal contact was on maternity leave so there was a delay. He has returned and been reminded and is looking at it. He says "The process for foreign MOUs has unfortunately gotten more complex per new DOE requirements." It can take a long time to go through the process. SLAC has not submitted any MoUs in the last 5 years. Les is still pushing forward and sent an outline to his bosses. This is not looking hopeful.
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Regarding the paper " Socioeconomic Development indices and their Reflection on Internet Performance in the ASEAN Countries ", Adib has submitted the paper to IEEE/ACM Transactions on Networking because IEEE Access does not accept a resubmission of previously rejected paper. Even so, he explained to them that our new submission has a totally new contribution, but they do not take it. The paper status is under review.
Adib, Bebo, Les met with Southampton Web observatory person. There seemed to be enthusiasm. Adib was going to send some materials to Southampton. The person at Southampton gave us some links. Adib is in the early stages of exploring what web observatory data to link with such as business context indicators, social mediaand governmentsitesmedia and government sites. There is no update 3/29/2018.
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- Johari ran into a problem with the Raspberry Pi image creation. Apparently, the image has to be burnt with exactly the same size as the capacity of the micro SSD, and the latter varies. There may not be a solution. Do we give up?
- Johari is looking at updating the PingER Malaysia website (pinger.unimas.my)
- We have lost both MAs at UNIMAS
- Johari has been unable to contact Hafiz to get MyREN monitor at UNIMAS (perfsonar-unimas.myren.net.my) working again. There was a discussion between Johari and Adib. Adib confirms Hafiz is still at MYREN, MYREN are moving locations which may have an impact on some servers and availability of Hafiz. Adib will try and contact Hafiz.
UAF/GHZU (
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Updated 5/5/2018))
He has written a very nice paper on blockchain and its potential use for PingER storage, reviewed by Les and Bebo (also see above under Bebo).
IPv6 node in Beijing is up and running for the last 3 weeks but not available from outside China. Does this host have a name or what is its Iv6 Address (is the latter 2001:da8:270:2018:f816:3eff:fef3:bdf3)? Is it possible to make it accessible from say SLAC (134.79.0.0/16)?
Saqib has run Umar's scripts to compare ping vs TCP. It took about 4 days and Umar has the results.
Saqib has noted that the RTTs from SLAC to China tend to be gretaer greater than those from SLAC to S. E. ans South Asia.
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and South Asia. Looking at the monthly avg RTTs from SLAC to: Japan, China, S. E. Asia and South Asia. Les does not see this, it needs further investigation. Below are the RTTs from http://www-wanmon.slac.stanford.edu/cgi-wrap/pingtable.pl. The Directivity is described in http://www.slac.stanford.edu/comp/net/wan-mon/tutorial.html#directness. It is a metric to identify the directness of the connection between 2 nodes at known locations. Directness values close to one mean the path between the hosts follows a roughly great circle route. Values much smaller than 1 mean the path is very indirect.
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PingER at SLAC (Updated 5/5/2018)
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.
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| Host | State | last seen | Status | |
|---|---|---|---|---|
| pinger-ncp.ncp.edu.pk | pinger-ncp.ncp.edu.pk down | Nov 29, 2018 | ||
| 121.56.146.180 (pinger.kohat.edu.pk) | Down | Nov 22nd, 2018 | ||
| pinger. | daffiodilvarsitydaffodilvarsity.edu.bd | Does not ping, name resolves, web site not accessible, sent email 4/29/2018, they did something and all is working again | April 21st 2018 | Fixed |
| pinger2.if.ufrj.br | Flaky, down since 4/28/2018, and out of disk space, pinger.xml truncated, emaile, sent email 4/28/2017, they are looking at it | April 4/28/2018 | ||
| pingeramity.in | It was working, now working on reliability | April 27, 2018 |
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Next meeting: Thursday, June 7th 9pm Pacific time; Friday, June 10th8th, 2018 9:00am Pakistan time; 12:00noon Malaysian & Guangzhou time; and 11am Thailand time.
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