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ClueBot NG (talk | contribs) m Reverting possible vandalism by 2A02:2F04:A012:1900:4515:1B61:C483:8574 to version by X201. Report False Positive? Thanks, ClueBot NG. (4172170) (Bot) |
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The problem with Stop-and-wait is that only one frame can be transmitted at a time, and that often leads to inefficient transmission, because until the sender receives the ACK it cannot transmit any new packet. During this time both the sender and the channel are unutilised.
=== Pros and cons of stop and wait ===
'''Pros'''
The only advantage of this method of flow control is its simplicity.
'''Cons'''
The sender needs to wait for the ACK after every frame it transmits. This is a source of inefficiency, and is particularly bad when the [[propagation delay]] is much longer than the [[transmission delay]].<ref name="PC-Radio Flow Control" />
Stop and wait can also create inefficiencies when sending longer transmissions.<ref name=ak2 /> When longer transmissions are sent there is more likely chance for error in this protocol. If the messages are short the errors are more likely to be detected early. More inefficiency is created when single messages are broken into separate frames because it makes the transmission longer.<ref name=lwilliam />
== Sliding window ==
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