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Agenda for SEECS/SLAC meeting December 8th 2010.

Bold face, topics for coming meeting that we need to address

Italics action items

Introductions

Amber and Sadia will share their CVs, Anjum will get them and forward.

They have applied for SLAC IDs, Les has approved they are going through HR.

They need to learn Perl. Zafar will go over what the projects PingER (this is done) and perfSONAR (this has to be done)

Adnan Kiani  has just been introduced to the PingER project. He completed his PhD degree this year in communications at Brunel University. He will be taking over the liaison at SEECS from Anjum. Anjum is over committed and unable to commit enough time to the PingER project.  

Pakistani case study – Zafar, Anjum

  1. Dr. Anjum is verifying that table.pl at SEECS has all the known Pakistani monitors.  Need to study improvements with pingtable.pl time series and the smokeping plots where we have them. If something has been recommended by our measurements and that has happened and made things better that is very important for the case study.
  2. 111.68.102.40 = PK.LSE.EDU.N3 needs to have a name registered in DNS. 
  3. UETAXILA pings, but the web page at uetaxila for traceroute does not respond, the ping_data.pl web form responds. Contact person replaced pinger.xml for ping_data.pl problem 12/6/2010 however its is still missing the <BeaconList> section of beacon hosts. 
  4. UOB is working 12/2/2010. Has the traceroute been added to the TULIP landmarks?
  5. NWFPUET   http://pinger.nwfpuet.edu.pk/cgi-bin/traceroute.pl?function=ping works

Sadia and Amber are working on the Peshawar data. Some of Peshawar node show long RTT to other sites  and others have short RTT. Some are going via Karachi. HEC Peshawar: pinger-rcp.pern.edu.pk. Same status as conveyed earlier, contact person and administration there need formal approval from DG IT HEC Islamabad

See the current status of new Pakistani PingER monitoring hosts .

Sadia is working on statistics for the HEC report which will be incorporated into the Pakistani case study. It will have a summary and Appendix. They are focusing on an inter-regional study. This will include routing paths and anomalies, with summary graphs.They are picking one or two nodes per region and then study from it to all other regions. They did not make the Nov 20th date due to Eids.  That has been a problem that Anjum has managed to work around. The subsequent reports will be monthly on 15th of the month. Expect to finish by Wednesday next week. Zafar is trying to keep the report below 50 pages. 11/1/2010 we are almost done with draft of the report and finishing the report. There are some interesting cases like intra cities nodes having weird RTT close to 0.7ms. The complete report will be available asap.

Sadia unearthed a problem in smokeping at SEECS. It has been fixed. She also unearthed a problem in table.pl which has also been Fixed. Well done Sadia in unearthing and reporting the problems.

Progress on ICFA Report 2011 - Zafar

Zafar worked on ICFA report but there are two sections that are left before an initial draft can be shared. He's been primarily busy with PerfSONAR. There are some issues that he's  trying to resolve. 

  1. 2010 Updates on Africa (done)
  2. Inland African fibre optics (done)
  3. African NREN (done)
  4. Mean Opinion Score
  5. Regions of the World graphs
  6. Throughput graphs (will be handled in December/January)
  7. PingER metrics (done)
  8. Loss (done)

I have extended the African case study to add BGP prefixes and pinger metrics for Africa.

PingER

We added another monitoring host this time in Egypt.  

I am working on a monitor in Sarawak.

PerfSONAR

Zafar has deployed bandwidth and latency. He believes they are working, but has not seen any graphs so far.

  1. Faisal is working with Yee. Progress - Faisal
    1. Looking at how to display multiple nodes at a single lat/long or close lat/longs, a grouping problem. Looking at how to handle identical lat/longs. Looked at MonALISA, and other implementations. This has been solved. 
    2. Added Zoom in based on selection feature. User can select a specific region of a map by holding shift key and dragging through the bounds. Will add to the PingER maps.
    3. For displaying links b etween hosts, Faisal is using poly-lines to represent great circle routes, rather than just straight lines to present the actual shortest path. Lot of mathematical formulas. Study on implementing Bézier curves which may help better to separate paths.
    4. Representation of data in XML for links and paths. Writing an API so can get data from perfSONAR and provide to the client.
  2. Zafar found a problem in the TULIP map, Faisal has fixed it. Faisal has kept information on the landmarks used RTs etc, which be very valuable later to look at.
  3. Zafar - deploy PerfSONAR nodes at SEECS. Second step is to find whether the same can be done at HEC on PERN's network. It is working, congratulations! 

Possible projects

See https://confluence.slac.stanford.edu/display/IEPM/Future+Projects. Zafar will be working on this

  1. Extend the NODEDETAILS data base to allow entry support for whether the host is currenty pingable.
  2. Extend the PingER map (also use for Pakistani to Pakistani subset map for the case study) - Faisal has taken this on.
    1. This adds ping, traceroute, access to database etc.
    2. The advantage compared to other traceroute maps is that the laundering keeps only good servers
    3. Add in Viper capabilities (i.e. paths with coloring)
  3. Get the MatLab license at SEECS and put up a CGB server using it. They had a licenses, it had limited capability and it has expired. Zadar will talk to Ali Khayam to get another license. In the meantime Zafar has a matlab version to work with. Basically the client will call the reflector with the target. The reflector will return the landmarks and RTTs. These (landmarks and RTTs) will be passed to the CBG code that will look up the database for the lat/longs of the landmarks (alternatively the CBG could be passed just the lat/longs andnot need the database, however this may make debugging harder) and then using these lat/longs together with the RTTs find the target and errors.   Zafar has 1 graduate (MS) student who can work on re-implementing CBG in Java. There are 2 students working on the PingER archive.
    1. All of our geolocation techniques are in Java and since there is no sort of a front-end back-end abstraction layer, best solution is to go with re-implementation.
    2. Since all of geolocation code is a single project, integrating CBG as a separate class will be better than trying to create a platform where CBG can talk to the rest of the infrastructure. This way in case of failure we will have just one point to deal with, instead of two. We won't be required to setup extra logging on the second machine running MatLab.
    3. Neither will there be communication overhead due to over-the-internet communication and nor will there be cross-platform issues.
  4. Extend Checkdata to provide emails automatically, see https://confluence.slac.stanford.edu/display/IEPM/Extend+checkdata+to+make+it+more+useful  
  5. Add MOS to pingtable.pl see https://confluence.slac.stanford.edu/display/IEPM/Add+Mean+Opinion+Score+%28MOS%29+to+pingtable.pl+metrics is Radia interested, she will start work on it when done with HEC report, also she is working on her masters classes done,  writing thesis.
  6. Improve the PingER2 installation procedures to make it more robust.  This might be something for the person(s) in Pakistan who are responsible for installing PingER2 at the Pakistani monitoring sites. They probably have found where the failures occurs. Also look at the FAQ, and ping_data.pl which has been improved to assist in debugging, could it be further improved (e.g. provide access to the httpd.conf file so one can see if it properly configured)?
  7. Fix PingER archiving/analysis package to be IPv6 conformant.

Future

Zafar's and Arshad's letters of invitation were sent 11/29/2010.

Two new students to visit SLAC: Amber, Sadia.  We want them to overlap with Faisal and Zafar. They want to start early due to funding constraint, i.e start well before June. Aim for Jan/Feb 2011. Is anything happening? 

Les is trying to clear space to visit SEECS in February.

Paper - Umar, Fida, Zafar

  1. SVN for paper, Umar has set it up and it is working. Umar will send out the accounts. Not critical at the moment.
  2. Umar will take as the main/first author of the paper. Ali Khayam has put together an introduction
    identifying the main points. Umar will send in the first draft and put together with feedback from Ali. Umar hopes to be done by Mid December. Umar is currently overwhelmed. Zero progress 11/10/2011. Umar has to submit a camera ready copy in the next couple of days.
  3. Adnan is also interested in working on the paper and will talk to Umar.

AOB

Future meeting time - Les

The next meeting in Wednesday 8th December for people in US and 9th December for people in Pakistan

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