Xbits, a programmable differentiated services internet exchange point Event as iCalendar

(Science Event Tags, Computer Science, Seminars)

21 February 2018

12 - 1pm

Venue: Building 303S, Room 561

Location: City Campus

Host: Department of Computer Science

Speaker: Saad Bin Qaisar, School of Electrical Engineering and Computer Science, National University of Sciences and Technology (NUST), Islamabad, Pakistan.


Local peering of traffic has substantial benefits for operators and end-users, alike.

In this work, we aim to provide a software defined (SDN) internet exchange point (SDX) architecture with a framework to offer differentiated services at IXP customized specifically for the needs of Pakistan internet community in particular and any peering IXPs in general.

SDN provides promise in terms of lower infrastructure costs and abstraction of network functionality in separate control and data planes. Efforts like project CARDIGAN (REANNZ/Victoria University) seek to separate control and data planes for internet exchange points.

Noise Lab at Princeton University, USA have provided an architecture for industrial SDX. To quote, “deploying software defined networking (SDN) at Internet exchange points (IXPs) offers new hope for solving long standing problems in inter-domain routing. At the SDX, ISPs can apply many diverse actions on packets based on multiple header fields, and distant networks can exercise “remote control” over packet handling. This flexibility enables applications such as inbound traffic engineering, redirection of traffic to middle-boxes, wide-area server load balancing, and blocking of unwanted traffic. Supporting these applications requires effective ways to combine the policies of multiple ISPs.”

Over and above, only a single IXP exists in a country like Pakistan. An integrated IXP architecture complying to SDN paradigm of separate control planes and data planes with a brokerage for differentiated services holds tremendous promise and potential for internet community in Pakistan. In this work, we are designing and implementing a software defined internet exchange point in Pakistan in collaboration with international partners at Tokyo University, Faucet Foundation and Victoria University New Zealand.


Saad Bin Qaisar (SM’14) received the M.S. and Ph.D. degrees in electrical engineering from Michigan State University, East Lansing, MI, USA, in 2005 and 2009, respectively.

He is currently an Associate Professor with the School of Electrical Engineering and Computer Science, National University of Sciences and Technology (NUST), Islamabad, Pakistan, where he is also the Founding Director of CoNNekT Lab. He is the Principal Investigator of several research projects and has published numerous papers at reputed venues.

His research interests include cyber-physical systems, wireless sensor networks, network virtualization, network protocol design, wireless and video communication, and multimedia coding.

Dr. Qaisar was declared overall the best Researcher for year 2012 by NUST based on his contributions, and best research faculty for year 2012 by School of Engineering and Computer Science NUST.  He has over 70 publications to his name in respected journals, and also serves as Associate Editor of IEEE Access.

In addition to  his academic pursuits, Dr. Saad leads Bitsym, a commercial spinoff from NUST primarily focusing in IIoT and Data Analytics space. He loves cricket, squash and is a an avid horse rider and show jumper.