EMC Connectrix B Series Hardware Reference Manual page 107

Domain ID As applies to Departmental Switches, a unique number between 1
and 239 that identifies the switch to the fabric and is used in routing
frames. Usually automatically assigned by the switch, but can be
manually assigned.
DTE Data Terminal Equipment; usually refers to a terminal.
DWDM Dense wavelengthdivision multiplexing. A means to concurrently
transmit more than one stream of data through a single fiber by
modulating each stream of data on to a different wavelength of light.
E
E_D_TOV Error detect time-out value. The minimum amount of 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. See also
R_A_TOV.
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.
ECCN
Export classification control number. A government classification of
encryption. For example, SSH is in the high-encryption category
(number 5X02) and therefore has certain restrictions regarding its
transfer.
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 2 services to
manage the exchange of frames across the fabric between source and
destination. See also End-to-End Flow Control and BB_Credit.
EIA Rack A storage rack that meets the standards set by the Electronics
Industry Association.
ELP Exchange link parameters.
ELS Extended link service. ELSs are sent to the destination N_Port to
perform the requested function or service. ELS is a Fibre Channel
standard that is sometimes referred to as Fibre Channel Physical
(FC_PH) ELS.
EM Environmental Monitor. Monitors FRUs and reports failures.
Connectrix B Series XPath OS AP-7420B Hardware Reference Manual
Glossary
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