| Reliability (computer Networking) |
Article Index for Reliability |
Website Links For Reliability |
Information AboutReliability (computer Networking) |
|
A reliable multicast protocol may ensure reliability on a per-recipient basis, as well as provide Strong Reliability Properties that relate the delivery of data to different recipients, such as e.g. Total Order , Atomicity , or Virtual Synchrony . Reliable protocols typically incur more overhead than unreliable protocols, and as a result, are slower and less scalable. This often isn't an issue for unicast protocols, but it may be a problem for '''multicast protocols'''. TCP , the main protocol used in the Internet today, is a reliable unicast protocol. UDP , often used in Computer Games or other situations where speed is an issue and the loss of a little data is not, is an unreliable unicast protocol. Examples of reliable multicast protocols include Reliable Multicast Transport Protocol ( RMTP ), Scalable Reliable Multicast ( SRM ), and QuickSilver Scalable Multicast ( QSM ). Often, a reliable unicast protocol is also Connection-oriented . For example, the TCP/IP protocol is connection-oriented, with the Virtual Circuit ID consisting of source and destination IP Address es and port numbers. Some unreliable protocols are connection-oriented as well. These include ATM and Frame Relay , on which a substantial part of all Internet traffic is passed. |
|
|