IBM F16, Руководство пользователя

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end-to-end credit (EE_credit). A credit scheme used
to manage end-to-end flow control during the exchange
of frames between two communicating devices. See
also
buffer-to-buffer credit and end-to-end flow control .
end-to-end flow control. Governs flow of class 1 and
class 2 frames between node ports (N_ports). See also
end-to-end credit .
E_port. See expansion port .
error. As applies to Fibre Channel, a missing or
corrupted frame, timeout, loss of synchronization, or
loss of signal (link errors). See also
loop failure .
error detect timeout value (E_D_TOV). The time that
the switch waits for an expected response before
declaring an error condition. Adjustable in 1
microsecond increments from 2 - 10 seconds.
ESD. See electrostatic discharge .
exchange. The highest level Fibre Channel
mechanism used for communication between node
ports (N_ports). Composed of one or more related
sequences, and can work in either one or both
directions.
expansion port (E_port). A port is designated an
expansion port (E_port) when it is used as an
inter-switch expansion port to connect to the E_port of
another switch, to build a larger switch fabric.
Extended Fabrics. A feature that runs on Fabric
operating system (OS) and allows creation of a Fibre
Channel fabric interconnected over distances of up to
100 km (62.14 mi).
extra long wavelength (ELWL). Laser light with a
periodic length greater than 1300 nm (for example,
1420 or 1550). ELWL lasers are used to transmit Fibre
Channel data over distances greater than 10 km. Also
known as XLWL.
fabric. A network that uses high-speed fibre
connections to connect switches, hosts, and devices. A
fabric is an active, intelligent, nonshared interconnect
scheme for nodes.
Fabric Assist. A feature that enables private and
public hosts to access public targets anywhere on the
fabric, provided they are in the same Fabric Assist zone.
fabric login (FLOGI). The process by which a device
gains access to the fabric.
fabric loop port (FL_port). A fabric port that is loop
capable. Used to connect node loop ports (NL_ports) to
the switch in a loop configuration.
fabric mode. One of the modes for a loop port
(L_port). An L_port is in fabric mode when it is
connected to a port that is not loop capable and is using
fabric protocol. See also
loop port and loop mode .
fabric name. The unique identifier assigned to a fabric
and communicated during login and port discovery.
Fabric OS. An operating system made up of two
software components: the firmware that initializes and
manages the switch hardware, and diagnostics.
fabric port (F_port). A port that is able to transmit
under fabric protocol and interface over links. Can be
used to connect a node port (N_port) to a switch. See
also
fabric loop port and Fx_port .
Fabric Watch. A feature that runs on Fabric operating
system (OS) and allows monitoring and configuration of
fabric and switch elements.
FC. See Fibre Channel .
FCA. See Fibre Channel arbitrated loop .
FC-AL. See Fibre Channel arbitrated loop .
FCC. Federal Communications Commission.
FCP. See Fibre Channel protocol .
FC-PH-1,2,3. The Fibre Channel Physical and
Signaling Interface standards defined by the American
National Standards Institute (ANSI).
Fibre Channel (FC). A technology for transmitting data
between computer devices at a data rate of up to 4
Gbps. It is especially suited for attaching computer
servers to shared storage devices and for
interconnecting storage controllers and drives.
Fibre Channel arbitrated loop (FC-AL). A standard
defined on top of the FC-PH standard. It defines the
arbitration on a loop where several Fibre Channel (FC)
nodes share a common medium.
Fibre Channel protocol (FCP). The protocol for
transmitting commands, data, and status using
fibre-channel FC-FS exchanges and information units.
Fibre Channel is a high-speed serial architecture that
allows either optical or electrical connections at data
rates from 265 Mbps up to 4-Gbps.
Fibre Channel service (FS). A service that is defined
by Fibre Channel standards and exists at a well-known
address. For example, the Simple Name Server is a
Fibre Channel service. See also
Fibre Channel service
protocol .
Fibre Channel service protocol (FSP). The common
protocol for all fabric services, transparent to the fabric
type or topology. See also
Fibre Channel service .
Fibre Channel shortest path first (FSPF). A routing
protocol used by Fibre Channel switches.
Fibre Channel transport. A protocol service that
supports communication between Fibre Channel service
providers. See also
Fibre Channel service protocol .
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IBM TotalStorage SAN Switch: 2109 Model F16 User’s Guide