| Subject | English | Spanish |
| IT | connectionless-mode transport protocol | protocolo de transporte en modo sin conexión |
| comp., MS | NWLink IPX/SPX/NetBIOS Compatible Transport Protocol | Protocolo de transporte compatible con NWLink IPX/SPX/NetBIOS (The Microsoft implementation of the Internetwork Packet Exchange/Sequenced Packet Exchange (IPX/SPX) protocol used on NetWare networks. NWLink allows connectivity between Windows-based computers and NetWare networks running IPX/SPX. NWLink also provides network basic input/output system (NetBIOS) functionality and the Routing Information Protocol (RIP)) |
| commun., IT | retained transport protocol data unit | UDPT retenida |
| commun., IT | simple mail transport protocol | protocolo simple de transferencia de correo |
| comp., MS | transport protocol | protocolo de transporte (A protocol that governs the transport channel used for sending messages back and forth between two partners. With respect to trading partner management (TPM), only the AS2 protocol is supported) |
| commun. | xerox network systems/internet transport protocol | Sistema de Red de Xerox/Protocolo de Transporte Internet |