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2.1 Introduction
Chapter 2
Fibre Channel
Overview
This chapter provides general overview information on Fibre Channel
(FC). The chapter contains the following sections:
•
Section 2.1, "Introduction"
•
Section 2.2, "FC Layers"
•
Section 2.3, "Frames"
•
Section 2.4, "Exchanges"
•
Section 2.5, "FC Ports"
•
Section 2.6, "FC Topologies"
•
Section 2.7, "Classes of Service"
FC is a high-performance, hybrid interface. It is both a channel and a
network interface that contains network features to provide the required
connectivity, distance, protocol multiplexing, as well as traditional channel
features to retain the required simplicity, repeatable performance, and
guaranteed delivery. Popular industry standard networking protocols
such as Internet Protocol (IP) and channel protocols such as Small
Computer System Interface (SCSI) have been mapped to the FC
standard.
The FC structure is defined by five functional layers. These layers,
shown in
Figure
2.1, define the physical media and transmission rates,
encoding scheme, framing protocol and flow control, common services,
and the Upper Level Protocol (ULP) interfaces.
LSIFC929 Dual Channel Fibre Channel I/O Processor
Copyright © 2000, 2001 by LSI Logic Corporation. All rights reserved.
2-1
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