| Abbreviation | Definition |
|---|---|
| RFO | Regional Framework Operative |
| RFP | Routing File Protocol |
| RFU | Really Fast Urf |
| RFV | Recency Frequency Value |
| RG | Radio Grade |
| RGC | Resource- Guaranteed Connection |
| RGMP | Router Group Management Protocol |
| RGS | Revenue Generated per Subscriber |
| RH | Remote Host |
| RH | Resource Header |
| RI | Routing Instance |
| RIA | Rich Internet Application |
| RIB | Renderman Interface Bytestream |
| RIB | Routing Information Base |
| RIBD | Routing Information Base Dictionary |
| RID | Relative IDentifier |
| RIF | Routing Information Field |
| RIG | Remote Intelligent Gateway |
| RII | Routing Information Indicator bit |
| RIM | Remote Infrastructure Management |