There are a number of advancing Internet Drafts within the IETF describing methods for encapsulating MPLS over IP networks. These include MPLS over IP, MPLS over GRE, MPLS over L2TPv3, MPLS over IPsec, and various combinations of each. This presentation will give an overview of the various options available, the tradeoffs of each, and how they can be used to complement an MPLS or IP core network.

About the Presenter
Mark Townsley is a Technical Leader for Cisco Systems, where he has worked on various VPN software development projects since 1997. Mark is Chair of the L2TP Extensions Working Group and Technical Advisor for the Pseudo Wire Emulation Edge to Edge (PWE3) Working Group in the IETF and has published numerous RFCs and technical reports. Mark holds a Bachelor's degree in Electrical Engineering (cum laude) from Auburn University and a Master's degree in Computer Science (summa cum laude) from Johns Hopkins.