HP StorageWorks Fabric OS 5.X Master Glossary (AA-RW7NA-TE, September 2005)

arbitration A method of gaining orderly access to a shared-loop topology.
area number In Fabric OS 4.0 and later, ports on a switch are assigned a logical area
number. These area numbers can be viewed by entering the switchShow
command. They are used to 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.
ARP Address Resolution Protocol. A TCP /IP function for associating an IP address
with a link-level a ddress.
ARR Asynchronous response router. A term that refers to Management Server
GS_Subtype Code E4, which appea rs in portLogDump command output.
ASD Alias server daemon. Used for managing multicast groups by supporting the
crea te, add, remove, and destroy functions.
ASIC Application-specific integrated circuit. A chip designed for a particular
application, as contrasted with integrated circuits that control general functions,
such as RAM in a PC.
ATM Asynchronous Transfer Mode. A transport used for transmitting da ta over
LANs or WANs that transmit fixed-length units of data. Provides any-to-any
connectivity and allows nodes to transmit simultaneously.
authentication The process of verifying that a n entity in a fabric (such as a switch) is what it
claims to be.
See also digital certificate and switch-to-switch authentication.
autocommit A feature of the firmwareDownload command. Enabled by default,
autocommit commits new firmware to both partitions of a c ontrol processor.
autoreboot Refers to the -b option of thefirmwareDownload command. Enabled by
default.
AW_TOV Arbitration wait tim eout value. The minimum tim e an a rbitrating L_Port waits
for a response before beginning loop initialization.
back bone fabric An optional capabilit y that enables scalable meta-SANs by allowing the
networking of multiple Fibre Channel (FC) routers, which connect to the
backbonefabricviaEB_Portinterfaces.
backup FCS Relates to the Secure Fabric OS feature. The backup fabric configuration ser ver
switch serves as a backup in case the primary FCS switch fails.
See also FCS and primary FCS.
BB_Credit Buffer-to-buffer credit. The number of fram es that can be transmitted to a directly
connected recipient or within an arbitrated loop. Determined by the number
of receive buffers available.
See also buffer-to-buffer flow control and EE_Credit.
BB fabric A backbone fabric that connects MP Routers. The MP Routers com municate over
the backbone fabric using FCRP (Fibre Channel Router Protocol).
beacon An activity in which all the port LEDs on a switch are set to flash from one side
of the switch to the other, to enable identification of an individual switch in a
largefabric. AswitchcanbesettobeaconbyaCLIcommandorthroughHP
Advanced Web Tools.
beginning running
disparity
The disparity at the transmitter or receiver when the special character associated
with an ordered set is encod ed or decoded.
See also disparity and running disparity.
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Glossary