Consider minimum frame size when to transmit nagles

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Unformatted text preview: ceiver: Adver)sedWindow = MaxRcvBuffer – ((NextByteExpected- 1) – LastByteRead) •  Sender: LastByteSent – LastByteAcked <= Adver)sedWindow Effec)veWindow = Adver)sedWindow – (BytesInFlight) LastByteWriqen – LastByteAcked <= MaxSendBuffer Flow Control Sending application LastByteWritten LastByteAcked TCP LastByteSent Receiving application LastByteRead NextByteExpected TCP LastByteRcvd (a) •  Adver)sed window can fall to 0 (b) –  How? –  Sender eventually stops sending, blocks applica)on •  Sender keeps sending 1- byte segments un)l window comes back > 0 •  50 students have ssh window open to bayou and are typing 1 character per second •  How many packets are read and wriqen by bayou per second? –  Consider minimum frame size When to Transmit? •  Nagle’s algorithm •  Goal: reduce the overhead of small packets If available data and window >= MSS Send a MSS segment else If...
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This note was uploaded on 01/27/2014 for the course COSC 4377 taught by Professor Staff during the Spring '08 term at University of Houston.

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