Glossary – Dell PowerVault 50F (Fibre Channel Switch) User Manual
Page 27
Glossary: Dell PowerVault™ 50F 8-Port Fibre Channel Switch User's Guide
file:///C|/Users/sharon_anand/Desktop/PowerVault/50f_enug/GLOSSARY.HTM[3/15/2013 11:27:31 AM]
Glossary: Dell PowerVault™ 50F 8-Port Fibre Channel Switch
User's Guide
alias server
A Fabric software facility that supports multicast group
management.
ANSI
American National Standards Institute.
arbitrated loop
The FC arbitrated loop (FC-AL) is a standard defined on
top of the FC-PH standard. It defines the arbitration on a
loop where several FC nodes share a common medium.
bit
The smallest unit of information interpreted by your
computer.
community (SNMP)
An SNMP community is a relationship between an SNMP
agent and a set of SNMP managers that defines
authentication, access control, and proxy characteristics.
credit
Credit, applied to a switch, is a numeric value that
represents the maximum number of receive buffers
provided by an F_Port or FL_Port to its attached N_Port or
NL_Port respectively, such tat the N_Port or NL_Port may
transmit frames without over-running the F_Port or
NL_Port.
Class 2
In Class-2 service, the Fabric and destination N_Port
provide connectionless service with notification of delivery
or nondelivery between the two N_Ports.
Class 3
Class-3 service provides a connectionless service without
notification of delivery between N_Ports. The transmission
GBIC
Gigabit Interface Converter. A removable serial transceiver
module designed to provide gigabaud capability for Fibre
Channel and other protocols that use the same physical
layer.
G_Port
A port is designated as a G_Port when it has not assumed
a specific function. A G_Port is a generic switch port that
can operate either as an E_Port. A port is defined as a
G_Port, for example, when it is not connected or has not
yet assumed a specific function in the Fabric.
interswitch link (ISL)
ISL is a fiber link between two switches.
loop
A loop is a configuration of devices (for example, JBODs)
connected to the Fabric via an FL_Port interface card.
multicast
Multicast is used when multiple copies of data are to be
sent to designated multiple destinations.
N_Port
The N_Port is the designation of an equipment port
connected to the Fabric.
NL_Port
The NL_Port is the designation of an equipment port
connected to the Fabric in a loop configuration via an
FL_Port.
power-on self-test
The POST is a series of self-tests which run each time the
unit is booted or reset.