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If an application requires a high degree of reliability, a protocol such as the Transmission Control Protocol may be used instead. Most often, UDP applications do not employ reliability mechanisms and may even be hindered by them. Streaming media, real-time multiplayer games and voice over IP (VoIP) are examples of applications that often use ...
In computer networking, the Reliable User Datagram Protocol (RUDP) is a transport layer protocol designed at Bell Labs for the Plan 9 operating system.It aims to provide a solution where UDP is too primitive because guaranteed-order packet delivery is desirable, but TCP adds too much complexity/overhead.
3. Soft, timer-based flow control. This option holds transmit data and limits repair window advancement based on group round-trip timing (GRTT) and NACK activity. A minimum, adaptable time limit is set, after which the sender can continue sending new data. This time limit is based on the sender-estimated GRTT and lack of NACK activity. 4.
Reliability is a synonym for assurance, which is the term used by the ITU and ATM Forum, and leads to fault-tolerant messaging. Reliable protocols typically incur more overhead than unreliable protocols, and as a result, function more slowly and with less scalability.
Due to protocol ossification, TCP and UDP are the only widely used transport protocols on the Internet. [6] To avoid middlebox intolerance, new transport protocols may mimic the wire image of a tolerated protocol, or be encapsulated in UDP, accepting some overhead (e.g., due to outer checksums made redundant by inner integrity checks). [7]
TCP acceleration converts the TCP packets into a stream that is similar to UDP. Because of this, the TCP acceleration software must provide its own mechanisms to ensure the reliability of the link, taking the latency and bandwidth of the link into account, and both ends of the high latency link must support the method used.
The UDP-based Data Transfer Protocol (UDT) project has been a base for the SRT project. [9] The SRT C API is largely based in design on the UDT API [10] SRT was designed for low-latency live video transmission. [9] [3] Haivision released the SRT protocol and reference implementation as open source at the 2017 NAB Show. [9]
Reliability in iWARP is given by the protocol itself, as TCP is reliable. RoCEv2 on the other hand utilizes UDP which has a far smaller overhead and better performance but does not provide inherent reliability, and therefore reliability must be implemented alongside RoCEv2. One solution is to use converged Ethernet switches to make the local ...