We introduce the Dynamic Policy Routing (DPR) model that captures the propagation of route updates under arbitrary changes in topology or path preferences. DPR introduces the notion of causation chains where the route flap at one node causes a flap at the next node along the chain.

This position paper outlines a new network architecture that is based on the fundamental principle that networking is interprocess communication (IPC). In this model, application processes (APes) communicate via an IPC facility. The IPC processes that make up this facility provide a protocol that implements an IPC mechanism, and a protocol for managing distributed IPC (routing, security and other management tasks). Our architecture is recursive in that the IPC processes can themselves be APes requesting services from lower IPC facilities. We present the repeating patterns and structures in our architecture, and show how the proposed model would cope with the challenges faced by today's Internet (and that of the future).

The use of synthetic aperture radar (SAR) provides an opportunity to assist search and rescue in the location of downed airplanes in particular in the northern areas of Canada. This paper presents results of examining the detection of crashed aircraft targets using airborne SAR data. Considerations for decreasing the number of "false targets" using a combined polarimetric and interferometric analysis have been tested with results indicating a promising approach for target detection using these SAR techniques.