HP Brocade 4Gb SAN Switch for HP BladeSystem c-Class - Manual (Page 147)

Fabric OS 5.0.0 Advanced Web Tools user guide 147
Glossary
This glossary defines terms used in this guide or related to this product and is not a comprehensive glossary of
computer terms.
address identifier A 24-bit or 8-bit value that identifies the source or destination of a frame. See also SID and
DID .
AL_PA Arbitrated-loop physical address. A unique 8-bit value assigned during loop initialization to a
port in an arbitrated loop. Also called arbitrated-loop parameters.
alias A logical grouping of elements in a fabric. An alias is a collection of port numbers and
connected devices that simplify the entry of port numbers and WWNs when creating zones.
area number In Fabric OS v4.0 and later, ports on a switch are assigned a logical area number. Port area
numbers can be viewed by issuing the
switchshow
command. They define the operative port
for many Fabric OS commands: for example, area numbers can be used to define the ports
within an alias or zone.
ASIC Application-specific integrated circuit.
authentication The process of verifying that an entity in a fabric (such as a switch) is what it claims to be.
backbone fabric An optional capability that enables scalable meta-SANs by allowing the networking of
multiple MP Routers, which connect to the backbone fabric via EB_Port interfaces.
BB fabric A backbone fabric that connects MP Routers. The MP Routers communicate over the backbone
fabric using FCRP (Fibre Channel Router Protocol).
BB_Credit Buffer-to-buffer credit. The number of frames that can be transmitted to a directly connected
recipient or within an arbitrated loop. Determined by the number of receive buffers available.
beacon A tool in which all of the port LEDs on a switch are set to flash from one side of the switch to
the other, to enable visual identification of an individual switch in a large fabric. A switch can
be set to beacon by a CLI command or through HP StorageWorks Advanced Web Tools.
block As applied to Fibre Channel technology, upper-level application data that is transferred in a
single sequence.
CHAP Challenge-Handshake Authentication Protocol. Allows remote servers and clients to securely
exchange authentication credentials. Both the server and client are configured with the same
shared secret.
chassis The metal frame in which the switch and switch components are mounted.
circuit An established communication path between two ports. Consists of two virtual circuits capable
of transmitting in opposite directions.
CLI Command line interface. An interface that depends entirely on the use of commands, such as
through telnet or SNMP, and does not involve a GUI.
client An entity that, using its common transport (CT), makes requests of a server.
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 .