Instruction Manual

connects to the PCI bus of the processor. Not visible within

the processor’s memory space.

conﬁguration The way a sy stem 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 pa rameters that g uide 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 c onsist of data words.

deﬁned zone c on-

ﬁguration

The set of all zone objects deﬁned in the fabric. May

includemultiplezoneconﬁgurations. See also zone, zone

conﬁguration.

directory service See SNS.

DLS Dynamic load sharing. Dynamic distribution of trafﬁcover

available paths. Allows for recomputing of routes when an

Fx_Port or E_Port changes status.

domain ID Unique identiﬁer used in routing frames for all switches in a

fabric. Usually assigned by the principal switch, but can be

assigned manually. The domain ID for an HP switch can be any

integer between 1 and 239. The default domain ID is usually 1.

E_D_TOV Error-detect time-out value. The minimum time a target waits

for a sequence to complete before initiating recovery. Can

also be deﬁned as the maximum time allowed for a round-trip

transmission before an error condition is declared.

E_Port Expansion port. A type of switch port that can be connected

to an E_Port on another switch to create an ISL. See also ISL

trunking, U_Port.

EE_Credit End-to-end credit. The number of receive buffers allocated by

a recipient port to an originating port. Used by Class 1 and

Class 2 services to manage the exchange of frames across the

fabric between source and destination.

EIA rack A storage rack that meets the standards set by the Electronics

Industry Association (EIA).

Glossary