4444 - CprE 530 Lecture 14 Topics • TCP Layer –...

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Unformatted text preview: CprE 530 Lecture 14 Topics • TCP Layer – Responsible for reliable end-to-end transfer of application data. TCP Services Multiplexing: • A process within a host using TCP service is identified with a port . A port, when concatenated with an internet address, forms a Socket , which is unique throughout the internet. Service provided by TCP is provided by means of a logical connection between a pair of sockets. Application 1 Application 2 Application 3 Application N Source Port 1 Source Port 2 Source Port 3 Source Port N Other Multiplexing service Figure 7.1 TCP Multiplexing TCP Layer IP Layer Protocol type = 17 (TCP) Transport Protocols TCP port numbers 5 RJE 68 Bootstrap Protocol Client 7 echo 69 Trivial FTP 9 Discard 75 any private dialout service 11 Active Users 77 any Private RJE service 13 daytime 79 FINGER 15 Who is up 101 NIC host name server 17 Quote of the day 102 ISO TSAP 17 Quote of the day 102 ISO-TSAP 19 Character Generator 103 X.400 20 FTP (default data) 104 X.400-SND 21 FTP (control) 105 CSnet Name server 23 TELNET 109 Post Office Protocol Ver 2 25 SMTP 113 Authentication Service 37 Time 115 Simple FTP 42 Host name service 119 NNTP 53 Domain name server 123 NTP 67 BOOTP 161 SNMP agent 162 SNMP management station TCP Connection Management Consists of three services:...
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4444 - CprE 530 Lecture 14 Topics • TCP Layer –...

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