hw5-sol - ECE 407: Introduction to Computer Communications...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

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

Unformatted text preview: ECE 407: Introduction to Computer Communications Homework #5 - Solutions Lab UDP Solution: 1. There are four fields : source port, destination port, length, and checksm. 2. 2Bytes each. 3. The number of bytes in the combined UDP header and data payload. 4. 65535- 8 = 65527 Bytes 5. Largest port number : 65535 6. Ox11, 17 in decimal. 7. IP header, UDP header, and UDP data 8. The port numbers are exchanged between sender and receiver. Lab TCP Solution: 1. IP address : 192.168.1.102, Source port : 1161 2. IP address : 128.119.245.12, Source port : 80 3. IP address : 192.168.1.102, Source port : 1161 4. Sequence number :0, Flag field SYN bit is set to 1 5. Sequence number :0, Acknowledgement number :1, Flag field SYN and ACK bits are set to 1 6. Sequence number of the HTTP POST command is 1 7. Seq time sent ACK time RTT EstimatedRTT 1 0.026477 0.053937 0.416917 0.416917 566 0.041737 0.077294 0.404011 0.40198 2026 0.054026 0.124085 0.498725 0.4141 3486 0.05469 0.169118 0.499443 0.424746 4946 0.077405 0.217299 0.503128 0.434543 6406 0.078157 0.267802 0.577733 0.452442 8. The first packet is 565 bytes and the rest are all 1460 bytes. 9. Window size = 5840 bytes, when the window size is zero, the sender will stop sending. 10. By looking at ACK with same sequence number....
View Full Document

This note was uploaded on 09/07/2010 for the course ECE 407 taught by Professor Eun during the Spring '08 term at N.C. State.

Page1 / 4

hw5-sol - ECE 407: Introduction to Computer Communications...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online