John Vollbrecht

Learn More
Status of this Memo This memo provides information for the Internet community. It does not specify an Internet standard of any kind. Distribution of this memo is unlimited. 1. Abstract This document describes how proxy chaining and policy implementation can be supported in roaming systems. The mechanisms described in this document are in current use.(More)
Production quality high speed networks connecting end devices are needed to design and prototype new types of distributed applications. The <i>eaviv</i> testbed has been deployed to provide such a facility, connecting Louisiana State University, National Center for Supercomputing Applications and Masaryk University, and enabling services for dynamic(More)
Authentication, Authorization and Accounting (AAA) mechanisms have an increasingly versatile role when performing access control on various types of network resources. Emerging data intensive grid applications generate new network requirements. These requirements call for (pre-) allocate-able data transport facilities serving specific user communities. The(More)
In this paper we discuss key architecture and design considerations associated with the development of a control plane capable of dynamic provisioning in this heterogeneous multi-domain, multi-layer, multi-service hybrid network environment . We present a framework for addressing the heterogeneous nature of the hybrid networks via the development of a(More)
Both within the Business and e-Science world, the use of virtualized resources is growing rapidly. These resources are increasingly delivered by multiple converged infrastructures, e.g. clouds that combine server, storage, and network resources from different providers. Such development requires careful rethinking of the trust framework used between(More)
In this paper, we address the problem of automated user-empowered control of dynamic network infrastructures. To do so, we have taken advantage of the advanced features of Internet2 Dynamic Circuit Networks (DCN) and the CoUniverse self-organizing application middleware. We modified CoUniverse to interface with DCN and automatically control the circuit(More)
This document describes a set of state machines for Extensible Authentication Protocol (EAP) peer, EAP stand-alone authenticator (non-pass-through), EAP backend authenticator (for use on Authentication, Authorization, and Accounting (AAA) servers), and EAP full authenticator (for both local and pass-through). This set of state machines shows how EAP can be(More)
  • J Vollbrecht
  • International journal of computerized dentistry
  • 2007
Unfortunately, there is no such thing as a universal material for every application--neither in engineering nor in dentistry. Instead, it is a matter of selecting the right material for each individual case and deploying this material in the appropriate way. For this reason, Sirona Dental Systems has decided to augment the existing product portfolio of its(More)
Internet-Drafts are working documents of the Internet Engineering Task Force (IETF), its areas, and its working groups. Note that other groups may also distribute working documents as Internet-Drafts. Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is(More)
  • 1