Technical data

222 HP Surestore FC Switch 6164 Installation and Reference Guide
FC-PLDA The Fibre Channel Private Loop Direct Attach standard. Applies to operation
of peripheral devices on private loops.
FC-SW-2 The Fibre Channel Switch Fabric standard, second generation. Specifies
tools and algorithms for interconnection and initialization of fibre channel
switches.
Fibre channel
transport
Protocol service that supports communication between fibre channel service
providers. See also FSP.
FIFO First In, First Out. May refer to a data buffer that follows the first in, first out
rule.
Fill word A word transmitted to keep a fibre active. Either an idle or ARB ordered set.
FL_Port Fabric Loop Port. A port that can transmit under both fabric protocol and
loop protocol. Can be used to connect NL_Ports to a switch. See also F_Port,
Fx_Port.
FLOGI Fabric Login. Process by which a node makes a logical connection to fabric.
Used by ports to determine if fabric is present, and if so to exchange service
parameters with the fabric. See also PLOGI.
Frame Fibre channel structure used to transmit data. Consists of start-of-frame
delimiter, header, any optional headers, data payload, cyclic redundancy
check (CRC), and end-of-frame delimiter. There are two types: data frames
and link control frames. Similar to the networking concept “packet.” See also
Sequence, Data word.
FRU Field Replaceable Unit. A component that can be replaced on site.
FS Fibre Channel Service. A service that is defined by fibre channel standards
and exists at a well-known address. For example, Name Server is a fibre
channel service. See also FSP.
FS_ACC Fibre channel services accept. The information unit used to indicate
acceptance of a request for a fibre channel service.
FS_IU Fibre channel services information unit. An information unit that has been
defined by a specific fibre channel service.
FS_REQ Fibre channel services request. A request for a fibre channel services
function, or notification of a fabric condition or event.