Glossary – HP Cisco MDS 9124e Fabric Switch for BladeSystem c-Class User Manual

Page 57

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Cisco MDS 9124e Fabric Switch for HP c-Class BladeSystem

57

Glossary

This glossary defines terms used in this guide or related to this product. It is not a comprehensive

glossary of computer terms.

EE_Credit

AL_PA

Arbitrated loop physical address. A unique 8-bit value assigned during loop

initialization to a port in an arbitrated loop. See also

non-participating mode

.

alias server

A fabric software facility that supports multicast group management.

API

Application programming interface. A defined protocol that allows applications to

interface with a set of services.

arbitrated loop

A shared 100 Mb/s Fibre Channel transport structured as a loop. Can support up to

126 devices and one fabric attachment. See also

public device

,

public loop

.

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.

bandwidth

The total transmission capacity of a cable, link, or system. Usually measured in bits per

second (b/s). May also refer to the range of transmission frequencies available to a

link or system.

broadcast

The transmission of data from a single source to all devices in the fabric, regardless of

zoning.

buffer-to-buffer
flow control

Management of the frame transmission rate in either a point-to-point topology or an

arbitrated loop. See also

arbitrated loop

,

point-to-point

,

topology

.

CLI

Command line interface. Interface that depends entirely on the use of commands, such

as through telnet or SNMP, and does not involve a GUI.

compact flash

Flash (temporary) memory that is used in a manner similar to hard disk storage. It is

connected to a bridging component that connects to the PCI bus of the processor. Not

visible within the processor’s memory space.

configuration

The way a system is set up. May refer to hardware or software:

Hardware: The number, type, and arrangement of components that make up a

system or network.

Software: The set of parameters that guide switch operation. May include general

system parameters, IP address information, domain ID, and other information.

Modifiable by any login with administrative privileges. May also refer to a set of

zones.

CRC

Cyclic redundancy check. A check for transmission errors that is included in every data

frame.

data word

A type of transmission word that occurs within frames. The frame header, data field,

and CRC all consist of data words.

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