TCP IP Illustrated

The server application is still asleep and has not

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: seconds before accepting any client connections. This gives us 30 seconds to start some clients, to fill the queue. We'll start four clients on the host sun. Figure 18.24 shows the tcpdump output, starting with the first SYN from the first client. (We have removed the window size advertisements and MSS announcements. We have also marked the client port numbers in bold when the TCP connection is established-the three-way handshake.) The first client's connection request from port 1090 is accepted by TCP (segments 1-3). The second client's connection request from port 1091 is also accepted by TCP (segments 4-6). The server application is still asleep, and has not accepted either connection yet. Everything has been done by the TCP module in the kernel. Also, the two clients have returned successfully file:///D|/Documents%20and%20Settings/bigini/Docu...homenet2run/tcpip/tcp-ip-illustrated/tcp_conn.htm (32 of 37) [12/09/2001 14.47.16] Chapter 18. TCP Connection Establishment and Termination from their active opens, since the three-way handshakes are complete. 1 0.0 2 3 4 5 6 7 8 9 10 11 12 13 0.002310 ( 0.0023) 0.003098 ( 0.0008) 4.291007 ( 4.2879) 4.293349 ( 0.0023) 4.294167 ( 0.0008) 7.131981 ( 2.8378) 10.556787 ( 3..4248) 12.695916 ( 2..1391) 16.195772 ( 3..4999) 24.695571 ( 8..4998) 28.195454 ( 3.4999) 28.197810 ( 0.0024) 28.198639 ( 0.0008) 48.694931 15 (20.4963) 14 16 48.697292 ( 0.0024) 17 48.698145 ( 0.0009) sun.1090 > bsdi.7777: S 1617152000:1617152000(0) bsdi.7777 > sun.1090: S 4164096001:4164096001(0) ack 1617152001 sun.1090 > bsdi.7777: . ack 1 sun.1091 > bsdi.7777: S 1617792000:1617792000(0) S 4164672001:4164672001(0) ack 1617792001 sun.1091 > bsdi.7777: . ack 1 sun.1092 > bsdi.7777: 1618176000:1618176000 sun.1093 > bsdi.7777: 1618688000:1618688000 sun.1092 > bsdi.7777: 1618176000:1618176000 sun.1093 > bsdi.7777: 1618688000:1618688000 sun.1092 > bsdi.7777: 1618176000:1618176000 sun.1093 > bsdi.7777: 1618688000:1618688000 bsdi.7777 > sun.1093: 4167808001:4167808001 ack...
View Full Document

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.

Ask a homework question - tutors are online