When the road between two networks breaks

Seven peer-reviewed publications, and a Ph.D. on a question that touches every internet user.

What actually happens?

The internet is many independent networks that exchange routes through a protocol called BGP. When a link fails, the news travels from router to router until every network agrees on a new path, a moment called convergence. Until then, data can be delayed or lost.

For his Ph.D. at RMIT University, Dr. Hamad analyzed this slowdown and proposed MultiState-BGP, an SDN-based way to manage gateways between multiple domains and counter convergence delays.

SDNSourceDestination
Convergence time

The news hops from router to router, and networks try alternatives before they settle.

A controller sees the whole network and steers the gateways to the new path together.

Simplified illustration

Selected publications

  1. 2022

    MultiState-BGP Manager for Multi-Domain SDN

    ITNAC, Wellington, New Zealand

  2. 2022

    Multidomain SDN-Based Gateways and Border Gateway Protocol

    Journal of Computer Networks and Communications, London

  3. 2020

    Multi-State Border Gateway Protocol for Multi-Domain Software Defined Networking–Based Gateways

    30th ITNAC (IEEE), Melbourne, Australia

  4. 2019

    Utilising SDN to Counter BGP Convergence Delays

    ITNAC, Auckland, New Zealand

  5. 2016

    An Intelligent System to Control the Operation of Tunnels and Subways: Application in Makkah and Madina Traffic and Pedestrian Tunnels

    CT-IETA (IEEE), USA

  6. 2016

    Wireless Sensor Networks (WSNs)

    IEEE LISAT, USA

30,000

readers of one of his papers

One of his papers published in the United States, on wireless sensor networks, their challenges and solutions, has reached nearly 30,000 readers around the world.

93.18%

his teaching score at RMIT

At RMIT University he taught the Enterprise & Cloud Networks and Network Access Systems labs, and received the Ideal Teacher (Rose) Award in 2019 with a 93.18% teaching score.

Degrees

Ph.D., Networks & Telecommunication Engineering

RMIT University, Melbourne, Australia

2018–2023Sponsored by his employer

Master of Engineering, Computer Engineering

University of Bridgeport, USA

2013–2016Honors, GPA 3.67/4

B.Sc. Computer Engineering

Umm Al-Qura University, Makkah

2003–2008Studied while working

Diploma, Security Science

King Fahad Security College, Riyadh

2008–2009Grade 94