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 cof this memo is unlimited. Abstract This document provides minor cl...

In this paper, a graph partitioning problem that arises in the design of SONET/SDH networks is defined and formalized. Approximation algorithms with performance guarantees are presented. To solve this problem efficiently in practice, fast greedy algorithms and a tabu-search method are proposed and analyzed by means of an experimental study.

This document describes the Ethernet Automatic Protection Switching (EAPS) (tm) technology invented by Extreme Networks to increase the availability and robustness of Ethernet rings. An Ethernet ring built using EAPS can have resilience comparable to that provided by SONET rings, at a lower cost and with fewer constraints (e.g., ring size).

It has been extremely difficult to characterize the SONET/SDH standard receiver with tolerances of 0.3 dB. This paper describes a method for calibrating photoreceiver frequency response with the low inherent uncertainty of the U.S. National Institute of Standards and Technology Nd:YAG heterodyne system and transferring this calibration to a production test system while maintaining a low uncerta...

The explosive growth in Internet traffic has created the need to transport IP on high-speed links. In the days of low traffic volume between IP routers, bandwidth partitions over a common interface made it attractive to carry IP over a frame relay and/or an ATM backbone. As the traffic grows, it is becoming more desirable to carry IP traffic directly over the synchronous optical network (SONET)...

Draft Date: March 18, 2002 _______________________________________________________________________ Abstract. In this research we describe a ring selection problem for ring based telecommunication networks. This Minimum Coverage Connected Rings (MCCR) Problem is formulated as an integer program. Further, we evaluate the complexity of this problem and prove that MCCR is NP-Hard. Since the solutio...

Jitter is a key performance factor in high-speed digital transmission systems, such as synchronous optical networks/synchronous digital hierarchy (SONET/SDH), optical transport networks (OTN), and 10 Gigabit Ethernet (GE). This paper outlines the differences between telecom and datacom jitter standards and describes the various jitter applications for compliance testing of 10 G small form-facto...

OBJECTIVES To derive a tool to determine Urgent Care Center (UCC) crowding and investigate the association between different levels of UCC overcrowding and negative patient care outcomes. DESIGN Prospective pilot study. SETTING Single centre study in the USA. PARTICIPANTS 3565 patients who registered at UCC during the 21-day study period were included. Patients who had no overcrowding sta...

A fundamental component of high-speed optical fiber networks is a low cost, high bandwidth interface for the network processors. These interface buses use some form of input buffering on their ingress path. Traditional communication ASICs used per-port FIFO queues for this input buffering. With the increasing number of ports supported by newer interfaces, this form of static allocation becomes ...