TCP IP Illustrated

000 1 110251024 1024 3072 0002 2 102520491024 2048

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Unformatted text preview: etwork, we expect to see the receiver perform silly window syndrome avoidance. Figure 22.2 is the time line for the transfer of the 6144 bytes of data. (We have deleted the connection establishment.) file:///D|/Documents%20and%20Settings/bigini/Docu...homenet2run/tcpip/tcp-ip-illustrated/tcp_pers.htm (5 of 11) [12/09/2001 14.47.29] Chapter 22. TCP Persist Timer We also need to track what happens with the application that's reading the data at each point in time, along with the number of bytes currently in the receive buffer, and the number of bytes of available space in the receive buffer. Figure 22.3 shows everything that's happening. file:///D|/Documents%20and%20Settings/bigini/Docu...homenet2run/tcpip/tcp-ip-illustrated/tcp_pers.htm (6 of 11) [12/09/2001 14.47.29] Chapter 22. TCP Persist Timer Figure 22.2 Time line showing receiver avoidance of silly window syndrome. Segment# Time (Figure 22.2) Action Send TCP Receive TCP Receiver buffer Application data available 0.000 1 1:1025(1024) 1024 3072 0.002 2 1025:2049(1024) 2048 2048 0.003 3 2049:3073(1024) 3072 1024 0.005 4 3073:4097(1024) 4096 0 0.170 5 3840 256 3841 255 ACK 4097, win 0 3.99 read 256 5.151 6 5.17 4097:4098(1) 7 ACK 4098, win 0 5.99 read 256 3585 511 7.99 read 256 3329 767 9.99 read 256 3073 1023 3074 1022 10.151 8 10.170 4098:4099(1) 9 ACK 4099, win 0 11.99 read 256 2818 1278 13.99 read 256 2562 1534 2563 1533 3587 509 15.151 10 15.170 11 15.172 12 15.370 4099:4100(1) 13 ACK 4100, win 1533 4100:5124(1024) ACK 5124, win 509 15.99 read 256 3331 765 17.99 read 256 3075 1021 19.99 read 256 2819 1277 3328 768 20.151 14 20.170 5124:5633(509) 15 ACK 5633, win 0 21.99 read 256 3072 1024 23.99 read 256 2816 1280 2817 1279 25.151 16 5633:5634(1) file:///D|/Documents%20and%20Settings/bigini/Docu...homenet2run/tcpip/tcp-ip-illustrated/tcp_pers.htm (7 of 11) [12/09/2001 14.47.29] Chapter 22. TCP Persist Timer 25.170 25.171 18 25.174 ACK 5634, win 1279 17 19 5634:6145(511) 3328 768 ACK 6146, win 767 25.99 read 256 3072 1024 27.99 read 256 2816 1280 29.99 read 256 2560 1536 31.99 read 256 2304 1792 33.99 read 256 2048 2048 35.99 read 256 1792 2304...
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This test prep was uploaded on 04/04/2014 for the course ECE EL5373 taught by Professor Guoyang during the Spring '12 term at NYU Poly.

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