I am a full professor of distributed computer systems and computer networks at the Department of Informatics of DI-FCT/UNL.

I am a member of the NOVA LINCS research center. Currently, my main current research interests are related with routing in computer networks and the future evolution of the Internet.

From 1990 to 1994 I lead the national project that established the portuguese branch of the Internet and lead the PUUG – Portuguese Unix Users Group, and the portuguese branch of EUnet.

I am the president of the board of the Portuguese Chapter of the Internet Society, a member of ACM and a senior member of IEEE.

I am also the author of the Computer Networks text book “Fundamentos de Redes de Computadores — Ilustrados com base na Internet e nos Protocolos TCP/IP,” 2018