Glossary

DLS

Dynamic Load Sharing. Dynamic distribution of traffic over available

 

paths. Allows for redistribution when an Fx_Port or E_Port comes up

 

or down.

Domain ID

As applies to some switches, a unique number between 1 and 239

 

that identifies the switch to the fabric.

E_D_TOV

Error Detect Time-out Value. Time allowed for round-trip

 

transmission before recovery is initiated. Can also be defined as the

 

minimum time an L_Port waits for sequence completion before

 

initiating recovery. See also R_A_TOV.

 

E

E_Port

Expansion Port. A switch port that has the ability to connect to a

 

similar port on another switch, allowing creation of an interswitch

 

link. See also ISL.

EE_Credit

End-to-end credit. The number of receive buffers allocated by

 

recipient port to originating port. Used by Class 1 and 2 services to

 

manage exchange of frames across intervening ports in fabric. See

 

also End-to-end flow control, BB_Credit.

Enabled configuration

The currently enabled zone configuration. Only one configuration

 

can be enabled at a time. See also Defined configuration, Zone

 

configuration.

End-to-end flow

Governs flow of Class 1 and 2 frames between N_Ports. See also

control

Buffer-to-buffer flow control,EE_Credit.

Error

As applies to fibre channel, a missing or corrupted frame, time-out,

 

loss of synchronization, or loss of signal. See also Loop failure.

Exchange

As applies to fibre channel, a communication session between

 

N_Ports involving the transmission of one or more related sequences,

 

in one or both directions. See also Sequence.

Extended Fabrics

A product that allows interconnection of fibre channel fabric over

 

distances of up to 100 kilometers.

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Departmental Switch Models DS-16B and DS-8B Web Tools User Guide

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EMC DS-8B Domain ID, EPort, EECredit, Enabled configuration, End-to-end flow, Control, Error, Exchange, Extended Fabrics