ORG Alcatel-Lucent Title BIO Marcus Duelk graduated with a diploma in physics from TU Berlin, Germany, and with a PhD in physics from ETH Zurich, Switzerland. He joined Bell Labs in 2000 and was working on various projects related to high-speed packet switching and transport on the physical layer. For the last three years he has been working on packet switching and routing architectures on L2/L3. He has been involved in the standardization of 100 Gigabit Ethernet from the early days of the Ethernet Alliance through the HSSG in the IEEE. He is an IEEE Senior Member, an IEEE 802.3 voting member and contributing to the ITU-T SG15 as well.