96122 • Revision: F 41
CHAPTER
5
Fibre Channel Operations
This chapter describes how the SL500 library operates using Fibre Channel.
Fibre Channel Levels
TABLE 5-1 shows the five levels and arbitrated loop (FC-AL) grouping of functions
for transmission over a Fibre Channel interface.
The remaining sections of this chapter explain how these levels work.
TABLE 5-1 Fibre Channel Levels
Levels Function Content
FC-4 Upper Level Protocol Mapping ■ Mapping of ULP functions
FC-3 Common Services
FC-2 Link Service
■ Login and Logout services
■ Basic Link and Extended Link
services
Signaling Protocol
■ Frames, sequences, and
exchanges
■ N_Ports, F_Ports, and topologies
■ Classes of Service (1, 2, and 3)
■ Buffer-to-buffer/end-to-end flow
control
FC-AL Arbitrated Loop Functions
■ Ordered sets for loop arbitration
■ Loop initialization
■ Physical address assignments
FC-1 Transmission Protocol
■ Encoding and decoding
■ Link management
■ Error monitoring
FC-0 Physical Interface
■ Transmitters, receivers, and
bandwidth
Media
■ Cables and connectors
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