You are viewing an old version of this page. View the current version.

Compare with Current View Page History

« Previous Version 4 Next »

There was a Bangladesh Research and Education Network (BDREN) conference (MEETBDREN) in Dhaka on April 19-18, 2016 that was invited to give a talk presenting the results of network monitoring by PingER especially as related to Bangladesh. Unfortunately I was unable to attend, however we put together a case study and set of slides that I could either present remotely or an attendee could present.

Another attendee (Md. Nadir Bin Ali, Deputy Director, IT, LMC, Cisco Networking Academy, Daffodil International University, 102 Shukrabad, Mirpur Road, Dhanmondi, Dhaka, Bangladesh) requested assistance to compare the network performance for universities connected to BDREN with those connected to non BDREN ISPs.

Ideally to compare one  would need multiple PingER Measurement Agents (MAs) in Bangladesh (BD). Some on BDREN some on other ISPs and a selection of targets in in BD some on BDREN some on other ISPs.  Then you would compare the performance BDREN to BDREN, BDREN to ISP, ISP to BDREN, ISP to ISP.  Currently there is only one BDREN MA in BD (Daffodil) and it is not monitoring many (If any) targets in BD. 

Getting another non BDREN MA in BD will require some site setting up a PingER MA, and making measurements. By the time the site and MA has been identified and the pinger.pl installed I doubt there will be many measurements by the time of the conference with enough time to analyze the results and draw conclusions.  On the other hand setting up the Daffodil MA to measure multiple sites in BD is much simpler and quick, so some measurements could be available for analysis before the conference. They may not be as complete as those from multiple MAs but they may provide useful information. To add extra hosts see here.

I ran a script to get potential Bangladeshi web servers that have been seen by Google and pinged each in turn to see if it responds and the Round Trip Time (RTT) if it does respond, We also need to determine if the hosts are on BDREN or another ISP. I looked up BDREN to see which sites are on BDREN at http://www.bdren.net.bd/member.php, and created a spread sheet of hosts in Bangladesh that I can ping that are www servers, are in either edu.bd or ac.bd (I also added known BDREN hosts) together with which hosts are on BDREN and if on BDREN whether the host responding to pings has a RTT of ~ 250ms seen from SLAC  (i.e. likely to be in Bangladesh)

 

  • No labels