HP StorageWorks XPath OS 7.4.X Administrator Guide (AA-RVHDD-TE, February 2006)

XPath OS 7.4.x administrator guide 105
Glossary
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
used to simplify the entry of port numbers and WWNs when creating zones.
alias server
A fabric software facility that supports multicast group management.
arbitrated loop
A shared 100-Mb/sec Fibre Channel transport structured as a loop. Can support up to 126 devices and
one fabric attachment. See also topology.
arbitration
A method of gaining orderly access to a shared-loop topology.
ARP
Address Resolution Protocol. A TCP/IP function for associating an IP address with a link-level address.
backbone fabric
An optional capability that enables scalable meta-SANs by allowing the networking of multiple FC routers,
which connect to the backbone fabric via EB_Port interfaces.
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. See also buffer-to-buffer
flow control.
BB fabric
A backbone fabric that connects FC routers. The FC routers communicate over the backbone fabric using
Fibre Channel Router Protocol (FCRP).
buffer-to-buffer flow control
Management of the frame transmission rate in either a point-to-point topology or in an arbitrated loop. See
also buffer-to-buffer flow control.
configuration
1. A set of parameters that can be modified to fine-tune the operation of a switch. Issue the configShow
command to view the current configuration of your switch.
2. In HP StorageWorks zoning, a zoning element that contains a set of zones. The configuration is the
highest-level zoning element and is used to enable or disable a set of zones on the fabric. See also zone
configuration.
congestion
The realization of the potential of oversubscription. A congested link is one on which multiple devices are
contending for bandwidth.