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HP Brocade 8Gb SAN Switch for HP BladeSystem c-Class User Manual

Page 56

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data word

A type of transmission word that occurs within frames. The frame header, data
field, and CRC all consist of data words.

defined zone
configuration

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

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).

enabled zone
configuration

The currently enabled configuration of zones. Only one configuration can be
enabled at a time. See also

zone

,

zone configuration

.

end-to-end flow
control

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

Glossary

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