F	failure
FA	FIB Aggregation
FA	Foreign Agent
FA	Forwarding Adjacency
FAA	Flow Admission Acknowledge
FAB	FIPA Architecture Board
FAC	Flow Admission Control
FAI	Functional Address Indicator
FAN	Fabric Address Notification
FANP	Flow Attribute Notification Protocol
FAP	Femto Access Point
FAP	file access protocol
FAQ	Frequently Asked Questions
FAR	Flow Accounting Request
FAR	Flow Admission Request
FAS	Facility Associated Signalling
FAS	Flow Admission Service
FAS	Frame Alignment Signal
FAST	Flexible Authentication Secure Tunneling
FAU	Flow Admission Update
FB	full-band
FBA	Flow Binding Acknowledgement
FBGJD	Forwarding Burdened Group Join Delay.
FBJD	Forwarding Burdened Join Delay
FBML	Forwarding Burdened Multicast Latency
FBU	Fast Binding Update
FC	Fibre Channel
FC	Full Context
FC-SP	Fibre Channel -Security Protocols
FCA	Flow Change Acknowledge
FCC	Federal Communications Commission
FCC	Flow control confirmation
FCFS	First Come First Served
FCFS	First-come-first-served
FCFS	first come, first served
FCI	Fault Cause Indication
FCI	Feedback Control Information
FCI	Forward Call Indicators
FCIP	Fibre Channel Internet Protocol
FCM	Firebase Cloud Messaging
FCN	Forward Credit Notification
FCN	Fragment Compressed Number
FCP	Fibre Channel Protocol
FCR	Flow Change Request
FCS	Field Check Sequence
FCS	Frame Check Sequence
FCS	Future Communications Study
FCS	finite coordinate space
FD	Feasible Distance
FD	Frame Delay
FD	first delay
FDDI	Fiber Distributed Data Interface
FDI	Forward Defect Indication
FDR	Frame Delivery Ratio
FDR	Frame Discard Ratio
FDR	Future Domain Routing
FDT	File Delivery Table
FE	Far End
FE	Forwarding Element
FE	front-end
FEA	Far End Allowed
FEC	Forward Equivalence Class
FEC	Forward Equivalency Class
FEC	Forward Erasure Correction
FEC	Forward Error Correction
FEC	Forwarding Equivalence Class
FEC	Forwarding Equivalent Class
FEC	forwarding equivalency class
FECN	Forward Explicit Congestion Notification
FEI	Forward Error Insertion
FEM	Forwarding Element Manager
FEP	Far End Prohibited
FEP	Firewall Enhancement Protocol
FER	Frame Error Ratio
FF	Fixed Filter
FF	Fixed-Filter
FF	form feed
FFC	Finite Field Cryptography
FFCI	FEC Framework Configuration Information
FFT	Fast Fourier Transform
FG	Flow Group
FG	forest guide
FGI	Flow Group Identifier
FGL	Fine-Grained Label
FH	Framing Header
FHR	First-Hop Router
FI	Feedback Input
FI	Frequency index
FIA	Future Internet Architecture
FIB	Forward Indicator Bit
FIB	Forwarding Information Base
FIFO	First In First Out
FII	Forked Instance Identifier
FIM	Fixed Interval Markers
FIP	FCoE Initialization Protocol
FIPS	Federal Information Processing Standard
FIR	Full Intra Request
FIS	Fault Indication Signal
FITS	Flexible Image Transport System
FL	Field Length
FL	Frequently Listening
FLEA	Four Letter Extended Acronym
FLL	Frequency-lock Loop
FLR	Frame Loss Ratio
FLR	Frame-Loss Rate
FM	Fault Management
FM	forwarding management
FMA	Flow Mobility Acknowledgement
FMC	Flow Mobility Cache
FME	Flow Management Entity
FMI	Flow Mobility Initiate
FMR	Forwarding Mapping Rule
FMS	Fault Management Signal
FMT	Feedback message type
FN	fixed node
FNA	Fast Neighbor Advertisement
FNAL	Fermi National Accelerator Laboratory
FNC	Federal Network Council
FNC	Federal Networking Council
FNO	File No Operation
FO	Feedback Output
FO	First Order
FOOBAR	FTP Operation Over Big Address Records
FOUO	For Official Use Only
FP	Field Position
FP	Forwarding Plane
FP	Fragmentation Permitted
FP	format prefix
FPGA	Field-Programmable Gate Array
FPI	flooded packet identifier
FPKI	Federal Public-key Infrastructure
FPN	First Pacific Networks
FPR	Frame Policing Ratio
FPT	Feature Profile Type
FQ	Fair Queueing
FQDN	Fully Qualified Domain Name
FQDN	Fully-Qualified Domain Name
FQHN	Fully-qualified host name
FR	Forwarding rate
FR	Frame Relay
FRICC	Federal Research Internet Coordinating Committee
FRR	Fast Re-route
FRS	Fault Recovery Signal
FRSN	flow reduction sequence number
FS	Forced Switch
FS	Forward Secrecy
FSC	Fiber Switch Capable
FSC	Fiber Switching Capable
FSC	Fiber-Switch Capable
FSE	Flow State Exchange
FSF	FCIP Special Frame
FSK	frequency shift keying
FSM	Fine State Machine
FSM	Finite State Machine
FSM	Functional State Machine
FSN	First Sequence Number
FSN	First Stamping Node
FSN	Forward Sequence Number
FSN	Fragment Sequence Number
FSPF	Fabric Shortest Path First
FSQ	Failover Session Query
FSR	FIB-Suppressing routers
FSR	Failover Session Response
FSS	Failover Session State
FSSI	FEC Scheme-Specific Information
FSSI	FEC-Scheme-Specific Information
FSTIDS	Fully Specified Targeted IP Diagnostic Suite
FSU	Florida State University
FT	Fault Tolerant
FT	Feedback Target
FT	Frame Type
FTC	Federal Trade Commission
FTD	Frame Transfer Delay
FTDV	Frame Transfer Delay Variation
FTN	FEC to NHLFE
FTN	FEC-to-NHLFE
FTP	File Transfer Protocol
FTP	File Transmission Protocol
FTTP	Fiber To The Premises
FU	Fragmentation Unit
FU	Functional Unit
FUA	Flow Update Acknowledge
FUN	Flow Update Notification
FW	File Writer
FYI	For You Information
FYI	For Your Information