Knowledge Base

Title Authors Last Update Category
IEEE 802.1 Website

The official IEEE website reference.

June 27, 2012 External Links
802.1ad Provider Bridges UNH-IOL Bridge Functions Consortium

This presentation provides a high level overview and introduction to Provider Bridges.

June 27, 2012 Tutorials
Simulating Gaussian Crosstalk for DSL Testing Timothy R. Clark

The presence of crosstalk is a major detriment to the performance of Digital Subscriber Line (DSL) transceivers. It is therefore important to test performance under a wide variety of crosstalk scenarios. This thesis presents the development of a crosstalk noise generation system as a tool for DSL performance testing. Where many commercially available solutions are limited to specific testing needs, the system presented here is universal and can simulate virtually any noise scenario conceivable for DSL deployment.
Several requirements for the accurate frequency domain modeling of DSL crosstalk are presented. The time domain properties of crosstalk were also studied with particular attention paid to the amplitude distribution. The importance of a Gaussian amplitude distribution and the limiting effect of a finite-length pseudo-random crosstalk sequence on the "tail" of the Gaussian distribution were investigated. A method of forcing finite-length crosstalk sequences to have a "near-Gaussian" amplitude distribution is proposed.

June 27, 2012 Theses
802.3ad Link Aggregation UNH-IOL Bridge Functions Consortium

This presentation provides a high level overview and introduction to Link Aggregation, and related technologies.

June 27, 2012 Tutorials
IEEE 802.1 Bridging Overview UNH-IOL Bridge Functions Consotium

This presentation provides a basic overview of IEEE 802.1 Bridging, and related technologies.

June 27, 2012 Tutorials
802.1D (Classic) Spanning Tree UNH-IOL Bridge Functions Consortium

This presentation provides a high level overview and introduction to Spanning Tree, and related technologies.

June 27, 2012 Tutorials
802.1s Multiple Spanning Tree UNH-IOL Bridge Functions Consortium

This presentation provides a high level overview and introduction to Multiple Spanning Tree, and related technologies.

June 27, 2012 Tutorials
802.1Q VLAN and GVRP UNH-IOL Bridge Functions Consortium

This presentation provides a high level overview and introduction to VLAN and GVRP, and related technologies.

June 27, 2012 Tutorials
glossary of Time and Frequency terms (NIST)

This is an informal glossary for educational purposes. It is reviewed by experts but is not intended to replace more formal definitions in standards. (Click the “Notes” link at the website for details.)

June 27, 2012 External Links
ITU-T G.994.1 (G.hs) Handshake Procedures for DSL Transceivers Lincoln Lavoie (UNH-IOL)

This presentation provides an overview the ITU-T G.994.1 (G.hs) Handshaking Procedures for Digital Subscriber Line Transceivers standard. The overview covers the physical layer modulation (DPSK), frame structures, message structures, and parameter encoding. The presentation also includes examples of the differential encoding used for the modulation, and the delimiting bits used within the parameter tree.

June 26, 2012 Tutorials