HP StorageWorks 2/140 director product manager user guide - Page 229

Glossary trap host SNMP management workstation that is configured to receive traps. trunk cable Cable consisting of multiple fiber pairs that do not directly attach to an active device. This cable usually exists between distribution panels. See also optical cable, contrast with jumper cable. unblocked port Devices attached to an unblocked port can login to the director and communicate with devices attached to any other unblocked port. unicast Communication between a single sender and a single receiver over a network. Compare to multicast and anycast (communication between any sender and the nearest of a group of receivers). universal port module card Each fiber port module card provides four Fibre Channel connections through duplex small form factor pluggable (SFP) fiber-optic transceivers. 1 or 2 gigabits per second enabled. UPM card See universal port module card vital product data (VPD) System-level data stored by the backplane in the electrically erasable programmable read-only memory. This data includes serial numbers and identifies the manufacturer. VPD See vital product data. warning message Software message that indicates a possible error was detected. See also error message and information message. world wide name (WWN) Eight-byte address that uniquely identifies a switch, or a node (end device) on global networks. WWN See world wide name. director product manager user guide Glossary-21