HP Brocade 16Gb SAN Switch for HP BladeSystem c-Class User Manual

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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.

DPOD

Dynamic Ports on Demand.

E

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

.

EBIPA

Enclosure Bay IP Addressing

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.

enabled zone
configuration

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

zone

, and

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; exchange can work in one or both directions.

F

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.

FC

Fibre Channel.

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.

Fibre Channel

The primary protocol for building SANs to transmit data between servers, switches, and storage
devices. Unlike IP and Ethernet, Fibre Channel is designed to support the needs of storage devices
of all types. It is a high-speed, serial, bidirectional, topology-independent protocol, and is a highly
scalable interconnection between computers, peripherals, and networks.

fill word

An IDLE or ARB ordered set that is transmitted during breaks between data frames to keep the
link active.

FL_Port

Fabric loop port. A port that is able to transmit under fabric protocol and has arbitrated loop
capabilities. Can also be used to connect an NL_Port to a switch. See also

U_Port

.

FLOGI

The process by which an N_Port determines whether a fabric is present and, if so, exchanges
service parameters with it. See also

PLOGI

.

frame

The FC structure used to transmit data between ports. Consists of a start-of-frame delimiter, header,
optional headers, data payload, cyclic redundancy check, and end-of-frame delimiter. There are
two types of frames: link control frames and data frames. See also

packet

.

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