| Abbreviation | Definition |
|---|---|
| BBNMS | Broadband Network Management System |
| BBOE | Box to Box Over Ethernet |
| BBQ | Blended, Browsing, and Querying |
| BBRAS | Broad Band Remote Access Server |
| BBS | Backbone-to-Backbone Station |
| BBSM | Building Broadband Service Manager |
| BBW | Bisection Bandwidth |
| BC | BSMTP (Batch Simple Mail Transfer Protocol) Connection |
| BC | Burst Committed |
| BCC | Block Check Count |
| BCE | Bad Cluster Elimination |
| BCI | Basic Communication Interface |
| BCMSN | Building Cisco Multilayer Switched Networks |
| BCMT | Bandwidth Constrained Multicast Tree |
| BCN | Browsing Context Node |
| BCNA | Berks County Networking Association |
| BCOS | Blockchain Open Source |
| BCS | Block Closure Semantics |
| BD | Broadcast Domain |
| BDC | Backup Domain Controller |