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HP StorageWorks 2.32 SAN Switch User Manual

Page 313

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Web Tools Version 3.0.x/4.0.x User Guide

Glossary–3

Glossary

Area Number

A number assigned to each potential port location in the StorageWorks Core switch. Used to
distinguish StorageWorks Core switch ports that have the same port number but are on
different port Blades.

ASIC

Application Specific Integrated Circuit.

ATM

Asynchronous Transfer Mode. A transport used for transmitting data over LANs or WANs that
transmit fixed-length units of data. Provides any-to-any connectivity, and allows nodes to
transmit simultaneously.

Auto-negotiate Speed

Process that allows two devices at either end of a link segment to negotiate common features,
speed (e.g., 1 or 2 Gbps) and functions.

Autosense

Process during which a network device automatically senses the speed of another device.

AW_TOV

Arbitration Wait Time-out Value. The minimum time an arbitrating L_Port waits for a
response before beginning loop initialization.

Backup FCS Switch

Backup fabric configuration server switch. The switch or switches assigned as backup in case
the primary FCS switch fails.

See also FCS switch, primary FCS switch.

Bandwidth

The total transmission capacity of a cable, link, or system. Usually measured in bps (bits per
second). May also refer to the range of transmission frequencies available to a network.

See also throughput.

BB_Credit

Buffer-to-buffer credit. The number of frames that can be transmitted to a directly connected
recipient or within an arbitrated loop. Determined by the number of receive buffers available.

See also Buffer-to-buffer Flow Control, EE_Credit.