F


FA

failover

fallback

Fast Ethernet

fault

Fault Management

FBC

FC

FCAPS

FCC

FD

FDB

FDL

FDN

Feature package

FEC

FEP

FF

FFD

FIB

FIC

FIPS

FIR

flash memory

flow description

flowspec

FM

FOADM

forwarding class

FP

FP4

FPE

FPGA

Fpipe

FQDN

FR

FRF.5

FRR

FRU

FT

FTP

FUA

FUI

fVOA

FXO

FXS