| S.No. | Short Form | Full Form | Country | Popularity |
| 1 |
ADN |
Application Delivery Network |
Worldwide |
|
| 2 |
ADSL |
Asymmetric Digital Subscriber Line |
Worldwide |
|
| 3 |
DDNS |
Dynamic Domain Name Service |
Worldwide |
|
| 4 |
DNS |
Domain Name System |
Worldwide |
|
| 5 |
DMZ |
DeMilitarized Zone |
Worldwide |
|
| 6 |
MAC |
Media Access Control |
Worldwide |
|
| 7 |
MAN |
Metropolitan Area Network |
Worldwide |
|
| 8 |
NAS |
Network-Attached Storage |
Worldwide |
|
| 9 |
NIC |
Network Interface Card |
Worldwide |
|
| 10 |
OSI |
Open Systems Interconnection |
Worldwide |
|
| 11 |
PAN |
Personal Area Network |
Worldwide |
|
| 12 |
PDC |
Primary Domain Controller |
Worldwide |
|
| 13 |
SAN |
Storage Area Network |
Worldwide |
|
| 14 |
VCI |
Virtual Channel Identifier |
Worldwide |
|
| 15 |
VIC |
Voice Interface Card |
Worldwide |
|
| 16 |
VPI |
Virtual Path Identifier |
Worldwide |
|
| 17 |
WAN |
Wide Area Network |
Worldwide |
|
| 18 |
Modem |
MODulator - DEModulator |
Worldwide |
|
| 19 |
LAN |
Local Area Network |
Worldwide |
|
| 20 |
NIA |
Network Interface Adapter |
Worldwide |
|
| 21 |
ARPANET |
Advanced Research Projects Agency Network |
Worldwide |
|
| 22 |
NSFNET |
National Science Foundation Network |
Worldwide |
|
| 23 |
BPL |
Broadband over power line |
Worldwide |
|
| 24 |
TTL |
Time to live |
Worldwide |
|
| 25 |
PING |
Packet Internet Gopher |
Worldwide |
|
| 26 |
IMP |
Interface Message Processor |
Worldwide |
|
| 27 |
CE |
Customer Edge |
Worldwide |
|
| 28 |
MTU |
Maximum Transmission Unit |
Worldwide |
|
| 29 |
NASS |
Network Attachment Subsystem |
Worldwide |
|
| 30 |
SAP |
Service Access Point |
Worldwide |
|
| 31 |
CNR |
Cisco Network Registrar |
Worldwide |
|
| 32 |
CNA |
Certified Novell Administrator |
Worldwide |
|
| 33 |
CNA |
Cisco Networking Academy |
Worldwide |
|
| 34 |
DTS |
Distributed Traffic Shaping |
Worldwide |
|
| 35 |
LOM |
Lights-out Management |
Worldwide |
|
| 36 |
MSF |
Multiservice Switching Forum |
Worldwide |
|
| 37 |
RPF |
Reverse path forwarding |
Worldwide |
|
| 38 |
WiFi |
Wireless Fidelity |
Worldwide |
|
| 39 |
STP |
Shielded Twisted Pair |
Worldwide |
|
| 40 |
ARCnet |
Attached Resource Computer network |
Worldwide |
|
| 41 |
PVC |
Permanent Virtual Circuit |
Worldwide |
|
| 42 |
PCS |
Physical Coding Sublayer |
Worldwide |
|
| 43 |
CTS |
Clear To Send |
Worldwide |
|
| 44 |
SDM |
Security Device Manager |
Worldwide |
|
| 45 |
CMM |
Communication Media Module |
Worldwide |
|
| 46 |
DMS |
Digital Multiplex System |
Worldwide |
|
| 47 |
RREQ |
Route Request |
Worldwide |
|
| 48 |
RREP |
Route Reply |
Worldwide |
|
| 49 |
NPS |
Network Planning Solution |
Worldwide |
|
| 50 |
VLSM |
Variable Length Subnet Mask |
Worldwide |
|
| 51 |
MEN |
Metro Ethernet Network |
Worldwide |
|
| 52 |
DAD |
Duplicate Address Detection |
Worldwide |
|
| 53 |
RAS |
Remote Access Services |
Worldwide |
|
| 54 |
NPE |
Network Processing Engine |
Worldwide |
|
| 55 |
QoS |
Quality of Service |
Worldwide |
|
| 56 |
SFTP |
Screened Foiled Twisted Pair |
Worldwide |
|
| 57 |
EEG |
Enterprise Encryption Gateway |
Worldwide |
|
| 58 |
PE |
Provider Edge router |
Worldwide |
|
| 59 |
P2P |
Peer-to-Peer |
Worldwide |
|
| 60 |
NetBIOS |
Network Basic Input/Output System |
Worldwide |
|
| 61 |
NSAP |
Network Service Access Point |
Worldwide |
|
| 62 |
MIR |
Maximum Information Rate |
Worldwide |
|
| 63 |
WLAN |
Wireless Local Area Network |
Worldwide |
|
| 64 |
IOS |
Internetwork Operating System |
Worldwide |
|
| 65 |
BPDU |
Bridge Protocol Data Unit |
Worldwide |
|
| 66 |
SONET |
Synchronous Optical Network |
Worldwide |
|
| 67 |
SSID |
Service Set Identifier |
Worldwide |
|
| 68 |
Cat6 |
Category 6 cable |
Worldwide |
|
| 69 |
CDSL |
Consumer Digital Subscriber Line |
Worldwide |
|
| 70 |
MAU |
Media Access Unit |
Worldwide |
|
| 71 |
CPM |
Clique Percolation Method |
Worldwide |
|
| 72 |
SSI |
Single System Image |
Worldwide |
|
| 73 |
VPN |
Virtual Private Network |
Worldwide |
|
| 74 |
PCI |
Protocol Control Information |
Worldwide |
|
| 75 |
NMS |
Network Management System |
Worldwide |
|
| 76 |
SWAN |
Structured Wireless Aware Network |
Worldwide |
|
| 77 |
RPSL |
Routing Policy Specification Language |
Worldwide |
|
| 78 |
SC |
Subscriber Connector |
Worldwide |
|
| 79 |
ASA |
Adaptive Security Appliance |
Worldwide |
|
| 80 |
MSAU |
Multi-Station Access Unit |
Worldwide |
|
| 81 |
PoE |
Power over Ethernet |
Worldwide |
|
| 82 |
AS |
Autonomous System |
Worldwide |
|
| 83 |
EEE |
Energy-Efficient Ethernet |
Worldwide |
|
| 84 |
RAT |
Router Audit Tool |
Worldwide |
|
| 85 |
LLC |
Logical Link Control |
Worldwide |
|
| 86 |
NPC |
Network Parameter Control |
Worldwide |
|
| 87 |
FDDI |
Fiber Distributed Data Interface |
Worldwide |
|
| 88 |
CAR |
Committed Access Rate |
Worldwide |
|
| 89 |
PHY |
Physical Layer |
Worldwide |
|
| 90 |
ESS |
Extended Service Set |
Worldwide |
|
| 91 |
TP |
Twisted Pair |
Worldwide |
|
| 92 |
CIR |
Committed Information Rate |
Worldwide |
|
| 93 |
BDR |
Backup Designated Router |
Worldwide |
|
| 94 |
CAN |
Campus Area Network |
Worldwide |
|
| 95 |
RON |
Resilient Overlay Network |
Worldwide |
|
| 96 |
LB |
Leaky Bucket |
Worldwide |
|
| 97 |
VLAN |
Virtual Local Area Network |
Worldwide |
|
| 98 |
APIC |
Application Policy Infrastructure Controller |
Worldwide |
|
| 99 |
SYNC |
Scheduling Your Network Connections |
Worldwide |
|
| 100 |
VIA |
Virtual Interface Architecture |
Worldwide |
|
| 101 |
SES |
SecureEasySetup |
Worldwide |
|
| 102 |
TTE |
Time-Triggered Ethernet |
Worldwide |
|
| 103 |
IIN |
Intelligent Information Network |
Worldwide |
|
| 104 |
DC |
Domain controller |
Worldwide |
|
| 105 |
AP |
Access Point |
Worldwide |
|
| 106 |
VC |
Virtual Circuit |
Worldwide |
|
| 107 |
BSSID |
Basic Service Set Identifier |
Worldwide |
|
| 108 |
ROAS |
Router On A Stick |
Worldwide |
|
| 109 |
RIB |
Routing Information Base |
Worldwide |
|
| 110 |
NAC |
Network Access Control |
Worldwide |
|
| 111 |
NAC |
Network Admission Control |
Worldwide |
|