HP StorageWorks 4/16 Brocade SAN Glossary for Fabric OS v6.0.0 - Page 28

U U_Port UDP ULP ULP_TOV Unicast UTC V VAR VC Encoded PID VCSEL VE_Port VEX_Port Virtual circuit W WAN WAN_TOV WDM Web Tools Well-known address Universal Port. A port that can operate as a G/E/F/FL_Port. All Brocade 2xxx series switches and beyond contain Universal Ports to allow any device to connect to any port. Selection of actual port type is automatic. User Datagram Protocol. A protocol that runs on top of IP and provides port multiplexing for upper-level protocols. Upper Level Protocol. The protocol that runs on top of Fibre Channel through the FC-4 layer. Typical protocols are SCSI, IP, HiPPI, and IPI. Upper-Level Timeout Value. The minimum time that an SCSI ULP process waits for SCSI status before initiating ULP recovery. A routing method that provides one or more optimal path(s) between any two switches in the fabric. Universal Time Conversion. Also known as "Coordinated Universal Time," an international time standard that is 5 hours behind Eastern Standard Time (EST). Value Added Reseller. PID format defined by the Brocade 1000 series switches. Vertical Cavity Surface Emitting Laser. An improved and more reliable type of laser. Virtual E_Port; functions somewhat like an E_Port, but terminates at the switch and does not propagate fabric services or routing topology information from one edge fabric to another. The link between an E_Port and EX_Port or VE_Port is called an Inter-Fabric Link (IFL). A type of VE_Port that connects an FC router to an edge fabric. A one-way path between N_Ports that allows fractional bandwidth. Wide Area Network. Wide Area Network Timeout Value. Wavelength Division Multiplexer. Allows multiple wavelengths to be combined or filtered on a single cable. See Brocade Web Tools. In Fibre Channel technology, a logical address defined by Fibre Channel standards as assigned to a specific function and stored on the switch. Brocade SAN Glossary 1/29/2008 Page 28 of 29