| Abkürzung |
Erklärung |
| CCNA |
Cisco Certified Network Associate |
| CCNP |
Cisco Certified Network Professional |
| CDP |
Cisco Discovery Protocol |
| CHAP |
Challenge handshake authentication
Protocol |
| CIDR |
Classless Interdomain routing |
| CIR |
Commited Information Rate |
| CRC |
Cyclical redundancy Check |
| CSMA/CD |
Carrier Sense Multiple Access/Collision
Detection |
| CSU |
Channnel Service Unit |