| Abbreviation | Definition |
|---|---|
| VSPAN | VLAN-based Switched Port ANalyzer |
| VSS | Virtual Service Switch |
| VSU | VPN Service Unit |
| VTA | Virtual Terminal Agent |
| VTEC | Valid Time Event Code |
| VTN | VeriSign Trust Network |
| VTN | Video Telecommunications Network |
| VTN | Virtual Trust Network |
| VTNS | Virtual Terminal Network Service |
| VTP | VLAN (Virtual Local Area Network) Trunk Protocol |
| VTP | VLAN Trunk Protocol |
| VTS | Vector Time Stamp |
| VVD | Voice and Video Data |
| VVDN | Video Voice Data Networking |
| VVDN | Voice Video Data and Networking |
| VVDN | Voice Video Data Networking |
| VVN | Vos Virtual Network |
| VVV | Virtual Volumes View |
| VW | Voted Waiting |
| VWN | Virtual Wireless Network |