defined zone

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

configuration

configurations. See also zone, zone configuration.

directory service

See SNS.

DLS

Dynamic load sharing. Dynamic distribution of traffic over 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 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 equipment storage rack that meets the standards set by the EIA (Electronics Industry

 

Association ).

enabled zone

The currently enabled configuration of zones. Only one configuration can be enabled

configuration

at a time. See also zone,zone configuration.

end-to-end flow

A facility that governs flow of class 1 and class 2 frames

control

between N_Ports.

error

With respect to FC, a missing or corrupted frame, time-out, loss of synchronization, or

 

loss of signal (link error).

exchange

The highest-level FC mechanism used for communication between N_Ports. Composed

 

of one or more related sequences; can work in one or both directions.

F_Port

Fabric port. A port that is able to transmit under fabric protocol and interface over

 

links. Can be used to connect an N_Port to a switch. See also U_Port.

fabric

An FC network containing two or more switches in addition to hosts and devices. May

 

also be called a switched fabric.

fabric name

The unique identifier assigned to a fabric and communicated during login and port

 

discovery.

FCIA

Fibre Channel Industry Association. An international organization of FC industry

 

professionals. Among other things, provides oversight of ANSI and industry standards.

FCP

Fibre Channel Protocol. Mapping of protocols onto the FC standard protocols. For

 

example, SCSI FCP maps SCSI-3 onto FC.

FCS switch

Fabric Configuration Server switch. One or more designated HP switches that store and

 

manage the configuration and security parameters for all switches in the fabric.

58 Glossary

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Cisco Systems 9124E Defined zone, Directory service, Domain ID, EPort, EECredit, EIA rack, Enabled zone, End-to-end flow