...
Saqib emailed a list of Potential PingER remote nodes in S. E Asia. We will need to get all Malaysian Pinger PingER monitors to add them to their HostLists. I have started a stub for a SE Asian Case Study at SE Asian Case Study, and within, there is a link to the spreadsheet.
...
The new beta test TULIP site is up and running and is at http://tulip.slac.stanford.edu. Has anybody outside SLAC tried it? Besides the various ping methods, Raja has added information on the target's AS, DNS LOC information if available, and other estimates such as GeoIPTools, GeoPlugin.
We are looking to make the code open source and available via github.
Raja has made lots of measurements and created cumulative probability distribution functions of how the new TULIP with adapting alpha (in distance = Alpha*100(km/ms)*min_RTT(ms)) according to region and min_RTT compares to databases and Constraint Based Geolocation and Single Ping etc. Raja is working He has also added information on the impact of landmark density on accuracy. He plans to have this ready in a few days.
Raja has put together a paper on TULIP. Next step is to submit itRaja is working on a paper.
To first order (due to the number of landmarks available) it only works in N. America, Europe and Pakistan. Even then it is only accurate to a hundred or so km. It also will not work for targets that do not respond to pings or are connected via geo-stationary satellites. We still need to make measurements to lots of targets so we can quantify the statistics here. Its Its main use at the moment maybe to find roughly the location, i.e. region/country/state, a target is in. This is particularly useful for proxies and for routers (the latter are typically mis-found by GeoIPtools to be in the corporate HQ of the owner (e.g. Berkeley for ESnet routers). It would be really valuable if router owners provided DNS LOC records filled out. If enough did this, we could add this to the balloons estimating the location of the target.
As Raja's work on TULIP begins to go into testing he will be engaging more with Renan and Linked Open Data. Raja has sent email to Renan and has a list of things from Renan that Raja should look at.
...
Les tried again with UFRJ (12/5/2013), making sure Renan is on the email so Renan can go beat on the door of the UFRJ contact. There was no response, Renan can you help?
Zakaria of Zayed university in Dubai copied Prof. Wathiq Mansoor of the American University in Dubai. Wathiq responded with interest, Les sent him information (basically http://www-iepm.slac.stanford.edu/pinger/letters/invite-monitor.doc). However the site does not appear to respond to pings. Les has not heard anything back from Wathig after informing him of the ping situation. Reminder sent 11/2/2013. Bebo will follow up on this.
We are working on the annual PingER report for the International Committee on Future Accelerators (ICFA). It is due mid January.
We made case studies of: the Democratic Republic of the Congo and Cuba upgrading from GEOS to terrestrial fibre optic links,
Old Items
Renan finished the new pingerlod web site. The new thing is that it should be much easier now to modify the info texts. What Renan did was to put the texts into a separate file. The new version has been loaded on the server and some text added to describe how to use the map. However there is a bug that prevents it from executing the map. Renan reports that the bugs should be easy to fix. He has talked to his professor who suggested trying RDF Owlink, it should have faster responeses to queries. Renan will research this. It will probably mean reloading the PingER data so is a lot of work, hopefully this will improve performance. Before the rebuild he will make the fixes and provide a new WAR for us to load on pingerlod.slac.stanford.edu. He is also working on documentation (he has finished the ontology and has a nice interactive tool for visualizing it, since the ontology is the core of the data model of our semantic solution, this will be very helpful for anyone who uses our system, both a developer of the system and a possible user) and his thesis. Bebo pointed out that to get publicity and for people to know about the data, we will need to add pingerlod to lod.org.
...