Reliable byte stream - Revision history

Jnc: Better car

2018-12-13T20:27:30Z

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2018-11-16T23:11:35Z

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2018-03-28T18:20:20Z

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Jnc: Import my old version

2017-12-28T12:59:22Z

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A '''reliable byte stream''' is a [[byte stream]] in which the bytes which emerge from the communication channel at the recipient are exactly the same, and in the exact same order, as the sender inserted into the channel.

Communication [[protocol]]s which implement reliable byte streams, generally over some unreliable lower level, use a number of mechanisms to provide the reliability. All data items are identified with a ''sequence number'', which is used both to make sure that the data is delivered to the entity at the other end in the correct order, and to check for lost data items. The receiver sends back ''acknowledgements'' for data items which have been successfully received; a ''timer'' at the sender will cause a ''timeout'' if an acknowledgement is not received within a reasonable ''round trip time'', and the (presumably lost) data will then be ''re-transmitted''. To check than no data items are damaged, a [[checksum]] is used; one is computed at the sender for each block of data before it is sent, and checked at the receiver. Erroneous or missing data is reported to the sender, in order that it may retransmit the same. Any duplicated data items are discarded.

The classic example of a reliable byte-stream protocol is the [[Transmission Control Protocol]].

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	The classic example of a reliable byte-stream protocol is the [[Transmission Control Protocol]].		The classic example of a reliable byte-stream protocol is the [[Transmission Control Protocol]].

−	[[Category: Networking]]	+	[[Category: Networking Basics‎]]

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 A '''reliable byte stream''' is a [[byte stream]] in which the bytes which emerge from the communication channel at the recipient are exactly the same, and in the exact same order, as the sender inserted into the channel.
-Communication [[protocol]]s which implement reliable byte streams, generally over some unreliable lower level, use a number of mechanisms to provide the reliability:
+Communication [[protocol]]s which implement reliable byte streams across a [[data network]], generally over some unreliable lower level, use a number of mechanisms to provide the reliability:
 * All data items are identified with a ''sequence number'', which is used both to make sure that the data is delivered to the entity at the other end in the correct order, and to check for lost data items.
@@ Line 8: / Line 8: @@
 * To check than no data items are damaged, a [[checksum]] is used; one is computed at the sender for each block of data before it is sent, and checked at the receiver.
-Erroneous or missing data is reported to the sender, in order that it may retransmit the same. Any duplicated data items are discarded.
+Erroneous or missing data is reported to the sender, in order that it may re-transmit the same. Any duplicated data items are discarded.
 The classic example of a reliable byte-stream protocol is the [[Transmission Control Protocol]].