Carrying IP traffic over connection-oriented networks requires the use of bandwidth on demand schemes at gateways or network interfaces. A new virtual queue occupancy, which is more accurate than the classical one, is being proposed for IP/SONET bandwidth on demand. Based on the virtual queue occupancy, two enhanced periodic approaches for lossless services, LAVQ and LAVQL, are simulated and ev...

Status of this Memo This document specifies an Internet standards track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the "Internet Official Protocol Standards" (STD 1) for the standardization state and status of this protocol. Distribution of this memo is unlimited. Abstract This document is a companion to ...

We propose a simple and robust automatic strategy for managing SDH/SONET and/or ATM virtual paths in real time to handle slow tra c variations. It consists of on-line measurements of o ered tra cs followed by the design and possible implementation of a new virtual path network in a repeated cycle. Methods and parameters for tra c measurements and network updating are studied and optimised to ac...

A JBits implementation of the Serpent block cipher in a Xilinx FPGA is described. JBits provides a Java-based Application Programming Interface (API) for the run-time modification of the configuration bitstream. This allows dynamic circuit specialization based on a specific key and mode (encrypt or decrypt). Subkeys are computed in software and treated as constants in the Serpent datapath. The ...

This memo defines a portion of the Management Information Base (MIB) for use with network management protocols in TCP/IP-based internets. In particular, it defines objects for managing Synchronous Optical Network/Synchronous Digital Hierarchy (SONET/SDH) objects. This document is a companion document with Definitions of Managed Objects for the DS1/E1 and DS3/E3 Interface Types, RFC1406 [14] and...

A general overview of the current status and future trends in optical networking is given. Special attention is given to the coexistence of optical and electronic technologies in telecommunications networks. After reviewing the advantages of both technologies, their use in different network areas is discussed. A critical survey of current and new transport technologies in optical core and metro...

The reemergence of metropolitan area networks (MANs) is being stimulated by the continued growth of the Internet. Here we introduce the likely role that optical burst switching (OBS) will play in the development of 10-Gbit Ethernet (10GbE) metropolitan networks. Although the synchronous optical network (SONET) is being proposed to provide wide-area connectivity for 10GbE MANs, its synchronous t...

Traditionally, the development of application-specific chip products such as ASSPs is based on foundry manufacturing, either in-house or via commercial foundries. FPGAs also are based on this manufacturing process, but due to their broader and more generic application, the production volume that FPGAs attain justifies investment in the latest manufacturing processes and technology. In turn, thi...

The planning of telecommunications networks raises various combinatorial optimization problems related to network design, routing of demands, multiplexing, etc. We provide in this paper an overview of such problems and a synthesis of the related literature, while introducing the eld to non expert readers from both the operations research and telecommunications communities. Acknowledgments: This...