...
Actual attendees: Anjum, Johari, Saqib, Badrul, Les
Workshop
It will be 25-26 June at the University of Malaya. There is a document. Abdullah has verbal approval, we are awaiting official approval
...
Les has sent HostFinder.pl to Johari to possibly assist in finding hosts. There appears to be a problem with the Google query. After the meeting Les sent Johari a fix to HostSearcher.pl. Les also sent the documentation on the raw data format to Johari.
Funding/Proposals
Johari reported that the FRGS proposal had been accepted. It is for 75K MRs (~$35K). It is for 5 people.
...
At the last meeting, we agreed that the projects we have been gathering should be divided into Development and Research. Since the last meeting Les did this, see Potential PingER Projects .
UNIMAS
There is a problem with the UNIMAS traceroute. It appears both in pinger.unimas.my and in the Raspberry. It appears pinger.unimas.my is behind a NAT that is not passing the traceroute UDP probes. Other hosts at UNIMAS are not seeing the problem, so Johari believes it may have to do with the IPTABLES in pinger.unimas.my. Traceroute using the -I option (send the probes using ICMP rather than UDP) seems to work (but needs root access). Thus it would appear not to be in the return (ICMP "time exceeded") response. The probes (when not using the -I option are UDP packets using sequentially ports 33434 - 33465 for up to 30 hops). It is possible that ports > some number may be blocked. Johari talked to Imran of the UNIMAS Computation Center to discuss the IP address configuration mismatch on private and public addresses
Johari has set up a guest account for Anjum. Anjum logged on and reported some concerns about addresses and interfaces not matching. He does not believe it is due to the Load Balancer. The traceroute/ping server is important for the TULIP trilateration project and also understanding routing within and from Malaysia.
There is a bug in http://www-wanmon.slac.stanford.edu/cgi-wrap/connectivity.pl?monitor=pinger.fsktm.um.edu.my&rawdata=www.aiu.edu.my&format=tsv&
. It gives: Content-type: text/html -rw-rw-r-- 1 pinger iepm 245175 Apr 13 01:08 /nfs/slac/g/net/pinger/pingerdata/hep/data/pinger.fsktm.um.edu.my/ping-2013-04-12.txt.gz Les needs to look at connectivity.pl
Les has sent documentation on the PingER raw data format to Johari
...
It would be interesting to skip the first 5 or 6 hops using the traceroute -f 6 option from the command line. Also make traceroutes with the 2 time outs at the same time
UM
Since the traceroute is working, "we" can start to make a routing study similar to https://confluence.slac.stanford.edu/display/IEPM/Routing+from+UNIMAS. Badrul has a student who will be working on the case study and will coordinate with Saqib at UTM and Johari at UNIMAS to combine results and to put together a paper for the Malaysian ISI Journal probably around the end of June. There was no progress reported on this.
...
Raja has completed converting CGG the MATLAB script to Mathematica and used it to generate some input files for Pakistan and Europe. However using the alpha values (function of both region and RTT value) found through the alpha analysis the distances were underestimates in some cases. He is working on finding the cause and possible solution. Did you get an answer?
Potential projects
Future meeting - Les
Next meeting Wednesday 24 April 2013 8:00pm Pacific Daylight Time, Thursday 25 April 2013 8:00am Pakistan time, Thursday 25 April 2013 11:00 am Malaysian time.
Action Items
- We await official approval of the workshop so we can proceed with invites.
- Johari is waiting to hear from Nara on funding someone from NUS for the workshop. This is very important.
- If there is to be an MoU signing ceremony between UM, UTM and UNIMAS, then an MoU will need to be drawn up.
- Hanan, Johari and Abdullah need to meet
- Johari found a bug in HostSearcher.pl, it needs fixing. Les has fixed it since the meeting.
- Badrul is putting together a funding proposal.
- The traceroute at UNIMAS needs further investigation
- There are some suggestions of for Saqib to try on the trace route at UTM
- We look forward to Badrul's student's work on the malaysian Internet case study
- Anjum can you resend the proposal.
- Raja press forward with visa etc.