Time & date
Wednesday February March 26, 2014 9:00pm Pacific Standard Time, Thursday March 27th 2014 9:00am Pakistan time, Thursday March 27th, 2014 12:00 noon Malaysian time, Thursday March 27th, 2014 1:00am Rio Standard Time.
Attendees
Invitees:
Anjum, Hassaan Khaliq, Kashif, Raja, Johari, Nara, Abdullah, Badrul, Ridzuan, Ibrahim, Hanan, Saqib, Adib, Les, Renan, Bebo
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- Responded but Unable to attend:
Actual attendees:
Administration
Hassaan has been added to the pinger-my email list.
- UUM are interested to host a PingER workshop at UUM in 2014. However, they have two issues, one is the budget (they need to run this workshop on cost recovery basis); second is their commitment to MYIGF which is hosted by UUM (btw 12-13 august). There was no update 3/5/2014. We need an update.
Renan
Renan realized that testing on Virtuoso is going to take longer than he thought because of the big number of triples. Any progress?
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The UFRJ host is successfully running again.
UM
UM appears to be experiencing very high packet losses (>4%). We need help in understanding these. It does not look like simple congestion since the jitter and RTT is staying low. Saqib needs assistance from Badrul as part of his case study of Malaysia. Badrul writes: "UM is now currently changing the new policy regarding the bandwidth and connection. They are upgrading the switch and router to a new router - mostly every weekend they shut down the network. therefore we are now having some difficulty." Saqib has identified what appear to be losses starting at a JARING router in KL. Badrul will run some mtr traceorute/pings to various sites. No update 3/5/2014.
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Adib was unable to attend the meeting. He provided an update by email: "The PingER monitor will be up soon" . Update requested 3/21/2014.
NUST
The PingER monitor at SEECS/NUST (maggie1) is being rebuilt on a different computer following a crash. There are 2 approaches thta can be tried in parallel:
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We have sent a reminder email to Yahoo giving them an update on TULIP and how it might be extended to meet their needs. They have responded, they appear to be interested. We are trying to interest them in providing landmarks. No update 2/18/2013.
PingER at SLAC
Raja has also re-written the historical traceroute facility that takes nightly traceroutes and allows one to retrieve and compare them. He then extended it to use the reverse traceroute facility to provide histories for NUST, CERN, UM as well as SLAC. When the UNIMAS and UTM traceroutes work, we can include them. See for example http://www-wanmon.slac.stanford.edu/cgi-wrap/traceroutearchive.cgi
The PingER monitoring host at ICTP has been restored to a working state. It had run out of file space. We improved pinger2.pl to detect lack of file space. Les is contacting the Jordanian PingER monitor contact to restore it.
Old Items
Linked Open Data
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.
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Renan has provided a 4 page Appendix on PingERLOD to the ICFA report. This is also available at PingER LOD Overview
Raspberry Pi
A quick comparison of the performance of the two hosts (raspberry pi and regular UNIMAS host) without statistical quantification is available at https://confluence.slac.stanford.edu/display/IEPM/Comparison+of+PinGER+RTTs+from+UNIMAS+monitors+N4+and+RASPBERRY. A page has been created to compare the hardware spec between the pinger.unimas.my node (Intel architecture) and the pinger2.unimas.my node (Raspberry Pi ARM architecture), available from the unimas pinger website at http://pinger.unimas.my/pinger/hardware.php. There is a link to hardware.php in the Comparison+of+PinGER+RTTs+from+UNIMAS+monitors+N4+and+RASPBERRY web page.
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At the Connect Asia Pacific Summit in Bangkok in January and seeing the project "Mapping the pan Asia Pacific information Superhighway and closing gaps in infrastructure connectivity" Shahryar found that very much related to the work in the PingER project. So Shahryar sent email to a UN agency for a possible collaboration with them on PingER project. He has heard nothing so he will write a detailed proposal and then should contact them again. No update 2/5/2014, 3/5/2014.
Tulip
Follow up from workshop
- Hossein Javedani of UTM is interested in anomalous event detection with PingER data. Information on this is available at https://confluence.slac.stanford.edu/display/IEPM/Event+Detection. We have sent him a couple of papers and how to access the PingER data. Hossein and Badrul have been put in contact. Is there an update Badrul?
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Anjum suggested Saqib, Badrul and Johari put together a paper on user experiences with using the Internet in Malaysia as seen from Malaysian universities. In particular round trip time, losses, jitter, reliability, routing/peering, in particular anomalies, and the impact on VoIP, throughput etc. It would be good to engage someone from MYREN.
Potential projects
Future meeting - Les
Next meeting Wednesday March 19th 2014 9:00pm Pacific Standard Time, Thursday March 20th 2014 9:00am Pakistan time, Thursday March 20th, 2014 noon Malaysian time, Thursday March 20th, 2014 02:00am Rio Standard Time.