McDATA® 4Gb SAN Switch for HP p-Class BladeSystem Installation Guide (AA-RW1XA-TE, June 2005)

McDATA® 4Gb SAN Switch for HP p-Class BladeSystem installation guide 61
Glossary
Active zone set The zone set that defines the current zoning for the fabric.
Active firmware The firmware image on the switch that is in use.
Activity LED A port LED that indicates when frames are entering or leaving the port.
Administrative state State that determines the operating state of the port, I/O blade, or switch. The configured
administrative state is stored in the switch configuration. The configured administrative state
can be temporarily overridden using the Command Line Interface.
Alarm A message generated by the switch that specifically requests attention. Alarms are
generated by several switch processes. Some alarms can be configured.
Alias A named set of ports or devices. An alias is not a zone, and can not have a zone or
another alias as a member.
AL_PA Arbitrated Loop Physical Address
Arbitrated loop An FC topology where ports use arbitration to establish a point-to-point circuit.
Arbitrated Loop
Physical Address
(AL_PA)
A unique one-byte value assigned during loop initialization to each NL_Port on a loop.
ASIC Application Specific Integrated Circuit. A chip designed for a specific applications, such as
a transmission protocol or a computer.
Auto save Zoning parameter that determines whether changes to the active zone set that a switch
receives from other switches in the fabric will be saved to permanent memory on that switch.
BootP Boot Strap Protocol. A type of network server.
Buffer credit A measure of port buffer capacity equal to one frame.
Cascade topology A fabric in which the switches are connected in series. If you connect the last switch back to
the first switch, you create a cascade-with-a-loop topology.
CHAP Challenge Handshake Authentication Protocol.
Class 2 service A service which multiplexes frames at frame boundaries to or from one or more N_Ports
with acknowledgment provided.
Class 3 service A service which multiplexes frames at frame boundaries to or from one or more N_Ports
without acknowledgment.
Chassis hop A measure of fabric latency represented by the ISL that any frame crosses when travelling
from one switch to another. A frame that travels from one switch to another over an ISL
experiences one chassis hop.
Default visibility Zoning parameter that determines the level of communication among ports/devices when
there is no active zone set.
Device security A component of fabric security that provides for the authorization and authentication of
devices that attach to a switch through the use of groups and security sets.
Discard inactive Automatically removes the previously active zone set when a zone set is activated on a
switch (non-configurable, always enabled).
Domain ID User defined number that identifies the switch in the fabric.
EFCM Enterprise Fabric Connectivity Manager
Event log Log of messages describing events that occur in the fabric.
Expansion port E_Port that connects to another FC-SW-2 compliant switch.
Fabric database The set of fabrics that have been opened during a McDATA Web Server session.
Fabric Device
Management Interface
(FDMI)
An interface by which device host bus adapters can be managed through the fabric.