HP Brocade 4Gb SAN Switch for HP BladeSystem p-Class - Manual (Page 264)

264 Glossary
Track Changes
An HP Fabric OS feature that can be enabled to report specific activities (for example, logins, logouts, and
configuration task changes). The output from the track-changes feature is dumped to the system message log for the
switch.
transceiver
A device that converts one form of signaling to another for transmission and reception; in fiber optics, optical to
electrical.
translative mode
A mode in which private devices can communicate with public devices across the fabric.
transmission character
A 10-bit character encoded according to the rules of the 8B/10B algorithm.
transmission word
A group of four transmission characters.
trap (SNMP)
The message sent by an SNMP agent to inform the SNMP management station of a critical error. See also SNMP .
trunking
In Fibre Channel technology, a feature that enables distribution of traffic over the combined bandwidth of up to four
ISLs between adjacent switches, while preserving in-order delivery.
trunking group
A set of up to four trunked ISLs.
trunking ports
The ports in a set of trunked ISLs.
TS
Time Server.
TTL
Time-to-live. The number of seconds an entry exists in cache before it expires.
tunneling
A technique for enabling two networks to communicate when the source and destination hosts are both on the same
type of network but are connected by a different type of network.
TX
Transmit.
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.