The agenda is as follows:

17.30 - 18.10: "One bit to rule them all: Single bit pre-congestion notification", René Rex

Pre-Congestion Notification (PCN) is a protocol being developed by the IETF to perform admission control and flow termination in DiffServ networks.Its purpose is to provide an early warning of potential congestion in any link in the network. In its current stage, it supports only non-elastic flows.The basic idea of Pre-Congestion Notification (PCN) is that the congested core routers mark packets and the ingress/egress use this information to perform Admission Control (AC - decide whether to accept or reject a request for a new flow) and Flow Termination (FT - terminate existing flows in cases ofextreme congestion) on a flow by flow basis.

This talk will present the use of PCN in an MPLS Diffserv network and highlight the possible limitation. It would then present a solution based on a single bit to represent three PCN states and discuss the solutions pros and cons.  

18.10 - 18.40: "I-PMIP: An Inter-Domain Mobility Extension for Proxy-Mobile IP", Niklas Neumann

Proxy Mobile IP (PMIP) provides a solution for network-based localized mobility management which in contrast to host-based mobility solutions, like Mobile IP (MIP), does not require changes to the end-hosts. It also avoids tunneling overhead on the interface which connects a mobile node to it's access network. Within a PMIP-enabled mobility domain, the mobile node is able to maintain the same IP address when it moves. However, if the mobile node leaves this domain the mobility support breaks.

This talk will introduce an extension to PMIP, called I-PMIP which allows to interconnect multiple PMIP-enabled mobility domains to provide continuous mobility support for a mobile user. The I-PMIP architecture provides the mobile node with an anchor point that is placed very close towards the mobile node. Numerical analysis show that our network-based approach is comparably to client to host-based mobility solutions.