Page History

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1. PERN is now up for last 10 days
2. pinger.nwfpuet.edu.pk down for last 5 days (see http://www-iepm.slac.stanford.edu/monitoring/checkdata/) they have solved that.
3. uetaxila down 15 days
4. aup, uob uet also down could be down  due to holidays
5. Full matrix in Pakistan (UOB, others? do not have full set of Pakistani beacons). The Pakistani monitoring nodes are supposed to get the beacon list from SEECS. LSE, UOB, UTAXILA, UET in need of help (see matrix) – Anjum has a student who can fix but need password so they can fix the nodes so they get the list from the SEECS server. Unsure of how long to fix. Fahad is busy these days. We may be getting additional nodes. We need to get the information so we can enter into the TULIP and PingER databases. Zafar will update our databases. There will be 21 monitors in Pakistan.
6. Kashif Sataar of SEECS is managing the hosts and contacts host contacts in case of problems.
7. Imran Bhaji is a undergraduate student in his senior year. He may

ping_data.pl - Les, Fahad

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Currently working on it. Having issues with clean working. He needs to get the -Tw and strict working then port to NUST and he has root access. By next week.

TULIP

1. Loss of PlanetLab nodes. The planetLab web site has been down so this may account for some of the problem.
2. Improved reflector gives the ability to select landmarks. This speeds up the process.
3. TULIP fixed for SLAC reflector to allow ability parameter.
4. Add shortest ping as estimate think about if other estimates fail (e.g. inscribed circle) or outside d'=min_RTT*100km then use shortest ping landmark coords - Faisal
5. Should add ability (to reflector.cgi) to ignore landmarks which are within a specified “short” distance of one that has already been used. Mark such landmarks as "dups" - Zafar
6. Big problem with integrated version of Apollonius and Tri-Lateration not working in TULIP Live - Faisal
   1. Integrated Code doesn't work with Reflector at SLAC
   2. Trilateration doesn't give correct estimates in integrated code. We are giving up on Trilateration and will focus on CBG via MatLabi

TULIP GUI - Faisal

1. Live GUI:
   1. Needs refactorization.
   2. Adding other geolocation estimates to GeoIPTools (GeoTools, IPLocationTools, whois, shortest ping ...) to come. Some things are ready to be installed  when the trlat trilateration & apollonius work

Possible project

1. Add traceroute & ping to my host and to selected host
   • Build on TULIP map
2. The advantage compared to other traceroute maps is that the laundering keeps only good servers
3. This awaits Anjum'return

Why does Apollonius fail - Farrah

1. Apollonius fails in 55 out 171 cases why?
2. Zafar will send email to Umar specifying the concern, then Umar will talk to Farrah at length
   1. Solved. NaN values .. same problem of landmarks having unsuitable RTTs (i.e. satellite links).

MatLab - Zafar

1. Can't convert MatLab code to Java in an automated fashion.
2. Zafar tried a tool (Matlab Builder JA
   1. )
   to do this.
3. Alternate solutions, rewrite the selected MatLab code, or use a MatLab server. We decided that this is not feasible.
4. Might ssh to a Linux Matlab machine and not implement the MatLab code again
   1. .
5. Get a license for Matlab machine. Emailed Kay Ganapathi (SLAC employee handling licenses) - Zafar

Paper - Umar, Fida, Zafar

1. We still don't believe in TULIP trilateration results. We will give upon it.
2. SVN for paper, Umar will has been set up and working, Umar will send out the accounts
3. Where do we go from here, do we await INFOCOM comments?
   • Do we rewrite with a new story, rewrite the introduction explaining what we are trying to sell, focus on comparative analysis, global extension, dependence on landmarks, tool. Put together a bulleted points of what the story line is. Umar, Fida, Zafar, Les will put together story line bullets. For  For the next meeting in a week. We need to identify where it is being submitted to determine what to focus on. Two possible venues are PAM (paper Oct 9, abstract Oct 2nd) and IMC-- Umar is looking at. Struggling whether to focus on Apollonius or comparative analysis. He is comfortable with Zafar's storyline. Fida will put together a paragraph on financial side for the motivation.
4. Do we go with comparative analysis, if we do then do we include Apollonius, if we do how we include it. Need to identify where we are useful. Mobility scenarios: mobility, routers, database does not have up to date info, e.g. mobile nodes moving country to country, do well if target is close to a landmark.
5. Need to identity other papers to quote how the 5 parameters we use affect the result,
   • How much time can Umar spend on it?
   • Fall semester starts Monday so Umar cannot drive.
   • Need a person to drive the paper, in particular the first few pages with the storyline.
   • Ideally the person to re-write is Fida, he wants to do it, but with 3 courses and assignments but cannot be the driving force.   Can Zafar take the reins. Zafar is volunteering to re-write the story line. Made a few changes to the Introduction part last week. Added a few lines about infrastructure. Feedback and guidelines required. Fida and Zafar are prepared to respond to comments/questions in 24-48 hours.
   • 1st step put together a story line in Google wave.

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1. This is good news.
2. Zafar returns to Pakistan at the end of October.
3. Zafar will apply for entrance to Stanford in 2011.
4. There is a possibility of extending his visit to SLAC. He would most probably will need to return first.
5. Can the funding from perfSONAR be used for the student? Les is working with SLAC HR to see about hiring a student.
6. Meanwhile Anjum will take the lead on funding from NUST side.

Future meeting time - Les

8pm Thursday 7th October will be the next formal meeting.