Paul Unbehagen is Chief Architect of Avaya Networking and is an active member of the IEEE and IETF. He has worked on the design, standardization, implementation, deployment and support of many modern routing protocols (e.g., MPLS, BGP, OSPF, IS-IS, and SPB). Paul is also a co-author of IEEE 802.1aq/Shortest Path Bridging and currently has approximately 24 networking related patents. He has also participated in several IETF WGs including IS-IS, BGP, L2VPN and IPVPNs, and is currently the author of the IP/SPB IETF draft. Previously, Paul has worked in numerous diverse networking environments that include the US Military, Bloomberg, MCI and Nortel, as well as a few startups. Paul thus has 18 years of deployment, operational, network design and architectural experience in live networks ranging from Government, Enterprise and Carrier.