HP StorageWorks Fabric OS 5.0.0 MIB Reference Guide (AA-RW1QA-TE, May 2005)

Fabric OS 5.0.0 MIB reference guide 279
flash
Programmable nonvolatile RAM (NVRAM) memory that maintains its contents without power.
FLOGI
Fabric login. The process by which an N_Port determines whether a fabric is present and, if so, exchanges service
parameters with it. See also PLOGI.
frame
The Fibre Channel structure used to transmit data between ports. Consists of a start-of-frame delimiter, header,
optional headers, data payload, cyclic redundancy check (CRC), and end-of-frame delimiter. There are two types of
frames: link control frames (transmission acknowledgements and so forth) and data frames.
frame relay
A protocol that uses logical channels, as used in X.25. Provides very little error-checking ability. Discards frames that
arrive with errors. Allows a certain level of bandwidth between two locations (known as a committed information
rate: CIR) to be guaranteed by service provider. If CIR is exceeded for short periods (known as bursts), the network
accommodates the extra data, if spare capacity is available. Frame relay is therefore known as bandwidth on
demand.
FRU
Field-replaceable unit. A component that can be replaced onsite.
FSPF
Fabric shortest path first. The HP routing protocol for Fibre Channel switches.
FSS
Fabric OS state synchronization. The FSS service is related to high availability (HA). The primary function of FSS is to
deliver state update messages from active components to their peer standby components. FSS determines if fabric
elements are synchronized (and thus FSS compliant).
FTP
File Transfer Protocol.
full fabric
The HP software license that allows multiple E_Ports on a switch, making it possible to create multiple ISL links.
full duplex
A mode of communication that allows the same port to simultaneously transmit and receive frames. See also half
duplex.
Fx_Port
A fabric port that can operate as either an F_Port or FL_Port. See also FL_Port.
G_Port
Generic port. A port that can operate as either an E_Port or an F_Port. A port is defined as a G_Port when it is not yet
connected or has not yet assumed a specific function in the fabric.
gateway
Hardware that connects incompatible networks by providing translation for both hardware and software. For
example, an ATM gateway can be used to connect a Fibre Channel link to an ATM connection.