HP StorageWorks 2/8-EL - SAN Switch Installation Manual page 110

Glossary
U_Port
Universal Port; a switch port that can operate as a G_Port, E_Port, F_Port, or FL_Port. A port
is defined as a U_Port when it is not connected or has not yet assumed a specific function in
the fabric.
UDP
User Datagram Protocol; a protocol that runs on top of IP and provides port multiplexing for
upper-level protocols.
ULP_TOV
Upper-level Time-out Value; the minimum time that a SCSI ULP process waits for SCSI
status before initiating ULP recovery.
ULP
Upper-level Protocol; the protocol that runs on top of Fibre Channel. Typical upper-level
protocols are SCSI, IP, HIPPI, and IPI.
Well-known Address
As pertaining to Fibre Channel, a logical address defined by the Fibre Channel standards as
assigned to a specific function, and stored on the switch.
Workstation
A computer used to access and manage the fabric. May also be referred to as a management
station or host.
WWN
Worldwide Name; an identifier that is unique worldwide. Each entity in a fabric has a separate
WWN.
Xmitted Close State
The state in which an L_Port cannot send messages, but can retransmit messages within the
loop. A port in the XMITTED CLOSE state cannot attempt to arbitrate.
Zone Configuration
A specified set of zones. Enabling a configuration enables all zones in that configuration.
Zone
A set of devices and hosts attached to the same fabric and configured as being in the same
zone. Devices and hosts within the same zone have access permission to others in the zone,
but are not visible to any outside the zone.
Zoning
A feature that runs on Fabric OS and allows partitioning of the fabric into logical groupings of
devices. Devices in a zone can only access and be accessed by devices in the same zone.
110 SAN Switch 2/8 Version 3.1.x Installation Guide