• 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.
D
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
on page 47,
on page 47.
DHCP
Dynamic Host Configuration Protocol
directory service
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 HPE 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
on page 42,
on page 46.
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.
40
Glossary
