HP StorageWorks 2/8-EL - SAN Switch Installation Manual page 101

Glossary
Command Line
Interface that depends entirely on the use of commands, such as through telnet or SNMP, and
does not involve a GUI.
Community (SNMP)
A relationship between a group of SNMP managers and an SNMP agent, in which
authentication, access control, and proxy characteristics are defined. See also SNMP.
Connection Initiator
A port that has originated a Class 1 dedicated connection and received a response from the
recipient.
Connection Recipient
A port that has received a Class 1 dedicated connection request and transmitted a response to
the originator.
CRC
Cyclic Redundancy Check; a check for transmission errors included in every data frame.
Credit
As applies to Fibre Channel, the number of receive buffers available for transmission of
frames between ports. See also BB_Credit, EE_Credit.
Disparity
The relationship of ones and zeros in an encoded character. "Neutral disparity" means an
equal number of each, "positive disparity" means a majority of ones, and "negative disparity"
means a majority of zeros.
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
As applies to SAN 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.
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.
SAN Switch 2/8 Version 3.1.x Installation Guide 101