OcNOS-RON : Glossory : U
U
unicast
The process of a single host sending messages to one destination.See also broadcast, multicast.
User Datagram Protocol (UDP)
A connectionless transport layer protocol that exchanges datagrams without acknowledgments or guaranteed delivery and which requires other protocols to handle error processing and retransmission. Defined in RFC 768.
Multicast applications that deliver audio and video streams use UDP as their delivery mechanism because the acknowledgment and retransmission services offered by Transmission Control Protocol (TCP) are not needed and add too much overhead.
User-to-Network Interface (UNI)
The physical interface/demarcation between a service provider and a subscriber, the service start or end point. There are two types of UNI:
• UNI-C: customer-side processes
• UNI-N: network-side processes
Last modified date: 06/16/2023