| Abbreviation | Definition |
|---|---|
| ENA | ECN Notify Acknowledgment |
| ENA | Ethernet Network Analysis |
| ENARSI | Enterprise Advanced Routing and Services |
| ENCS | Enterprise Networking Communication Services |
| END | Epic Nominal Domain |
| ENDEF | Expected Number of Decodable Frames |
| ENESM | European Network for Earth System Modelling |
| ENKI | Executives Networking Knowledge and Insight |
| ENM | Emergency Notification Message |
| ENRICH | Enabling Networking Respect Inclusion Community and Hope |
| ENRM | Ethernet Network Routing Module |
| ENS | Enterprise Naming System |
| ENT | Enterprise |
| EOA | Ethernet Over ATM (Asynchronous Transmission Mode) |
| EOAM | Ethernet Operations, Administration, and Maintenance |
| EOF | End Of Frame |
| EoIP | Ethernet over Internet Protocol |
| EOL | End Of List |
| EON | Edge Of the Network |
| EON | Enhanced Other Network |