Knowledge Base

Titlesort descending Authors Last Update Category
Epoch Converter

Epoch & Unix Timestamp Conversion Tools

October 7, 2013 External Links
Ethernet Alliance - Marketing Organization for IEEE

Resource to find information about current and future Ethernet technologies.

June 29, 2012 External Links
Ethernet Evolution Hadriel Kaplan and Bob Noseworthy

This is an all encompassing overview of Ethernet technologies, from 10Meg to 10Gig and how it all works.

Originally presented at the 2001 Network+Interop even in Atlanta.

June 29, 2012 Tutorials
Ethernet Technologies Cisco Systems

Overview of internetworking basics and technologies, provided by Cisco Systems.

June 20, 2012 External Links
Fairness in a data center Mikkel Hagen

Existing data centers utilize several networking technologies in order to handle the performance requirements of different workloads. Maintaining diverse networking technologies increases complexity and is not cost effective. This results in the current trend to converge all traffic into a single networking fabric. Ethernet is both cost-effective and ubiquitous, and as such it has been chosen as the technology of choice for the converged fabric. However, traditional Ethernet does not satisfy the needs of all traffic workloads, for the most part, due to its lossy nature and, therefore, has to be enhanced to allow for full convergence. The resulting technology, Data Center Bridging (DCB), is a new set of standards defined by the IEEE to make Ethernet lossless even in the presence of congestion. As with any new networking technology, it is critical to analyze how the different protocols within DCB interact with each other as well as how each protocol interacts with existing technologies in other layers of the protocol stack.

This dissertation presents two novel schemes that address critical issues in DCB networks: fairness with respect to packet lengths and fairness with respect to flow control and bandwidth utilization. The Deficit Round Robin with Adaptive Weight Control (DRR-AWC) algorithm actively monitors the incoming streams and adjusts the scheduling weights of the outbound port. The algorithm was implemented on a real DCB switch and shown to increase fairness for traffic consisting of mixed-length packets. Targeted Priority-based Flow Control (TPFC) provides a hop-by-hop flow control mechanism that restricts the flow of aggressor streams while allowing victim streams to continue unimpeded. Two variants of the targeting mechanism within TPFC are presented and their performance evaluated through simulation.

December 7, 2012 Theses
Fibre Channel over Ethernet Tutorial Mikkel Hagen

Fibre Channel over Ethernet is a data center protocol designed to transfer Fibre Channel frames over commodity Ethernet equipment.

November 25, 2008 Tutorials
Fibre Channel Overview Zoltán Meggyesi

A technical overview of Fibre Channel

April 13, 2005 External Links
Fibre Channel Physical Layer Tutorial Daniel Reynolds

FC-PI-2 specifies both Electrical and Optical interfaces for Fibre Channel. This document focuses on the Electrical Physical Layer up to 4G speeds. This document describes the unique characteristics specific for FC devices as well attempts to introduce the generic topics involved in serial based technologies.

June 22, 2009 Tutorials
Fibre Channel Tutorial Various

Fibre Channel is a computer communications protocol designed to meet the many requirements related to the ever increasing demand for high performance information transfer.

September 18, 2014 Tutorials
FQTSS Overview William Gravelle

FQTSS is defined in the IEEE standard 801.Q Clause 34; Forwarding and Queuing Enhancements for Time-Sensitive Streams. The term FQTSS is used to describe a set of tools which are used to forward and queue time-sensitive streams. Since AVB frames cannot be dropped, there must be a mechanism in place to forward AVB frames quickly and efficiently. This is where FQTSS (aka Qav) comes into play. This paper goes into the components that make up FQTSS.

July 16, 2013 White Papers