IBM F16, Руководство пользователя

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SNMPv1. The original standard for SNMP, now labeled
v1.
SNS. See simple name server .
SOF. Start-of-frame.
SPC. SCSI-3 Primary Command.
standard translative mode. A hardware translative
mode that allows public devices to communicate with
private devices across the fabric. See also
hardware
translative mode and QuickLoop mode .
storage area network (SAN). A network of systems
and storage devices that communicate using Fibre
Channel protocols. See also
fabric .
switch. Hardware that routes frames according to
Fibre Channel protocol and is controlled by software.
switch name. The arbitrary name assigned to a
switch.
switch port. A port on a switch. Switch ports can be
expansion ports (E_ports), fabric ports (F_ports), or
fabric loop ports (FL_ports).
SWL. See short wavelength .
synchronous dynamic random access memory
(SDRAM).
The main memory for the switch. Used for
volatile storage during switch operation.
Tachyon. A type of host bus adapter.
target. A storage device on a Fibre Channel network.
See also initiator .
TCP. See Transmission Control Protocol .
tenancy. The time from when a port wins arbitration in
a loop until the same port returns to the monitoring
state. Also referred to as loop tenancy.
throughput. The rate of data flow achieved within a
cable, link, or system. Usually measured in bits per
second (bps). See also
bandwidth .
topology. As applies to Fibre Channel, the
configuration of the Fibre Channel network and the
resulting communication paths allowed.
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 Control protocol (TCP). A
communications protocol used in the Internet and in any
network that follows the Internet Engineering Task Force
(IETF) standards for Internet protocol.
transmission word. A group of four transmission
characters.
trap. In SNMP, a message sent by a managed node
(agent function) to a management station to report an
exception condition.
tunneling. A technique for enabling two networks to
treat a transport network as though it were a single
communication link or local area network (LAN).
Tx. Transmitted.
U. Unit of measure for rack-mounted equipment.
UART. Universal Asynchronous Receiver Transmitter.
UDP. See user datagram protocol .
ULP. See upper-level protocol .
ULP_TOV. See upper-level timeout value .
unicast. The transmission of data from a single source
to a single destination. See also broadcast and
multicast .
universal port (U_port). A switch port that can
operate as a generic port (G_port), expansion port
(E_port), fabric port (F_port), or fabric loop port
(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.
U_port. See universal port .
upper-level protocol (ULP). The protocol that runs on
top of Fibre Channel. Typical upper-level protocols are
small computer system interface (SCSI), Internet
protocol (IP), HIPPI, and IPI.
upper-level timeout value (ULP_TOV). The minimum
time that a small computer system interface (SCSI)
upper-level protocol (ULP) process waits for SCSI
status before initiating ULP recovery.
user datagram protocol (UDP). A protocol that runs
on top of Internet protocol (IP) and provides port
multiplexing for upper-level protocols.
VCCI. Voluntary Control Council for Interference
WAN. See wide area network .
WDM. Wave division multiplexing.
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.
wide area network (WAN). A network that provides
communication services to a geographic area larger
than that served by a local area network or a
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IBM TotalStorage SAN Switch: 2109 Model F16 User’s Guide