Description

V Semester – CSE ‘B’
UCS1511 NETWORKS LAB

Exercise 8: PERFORMANCE EVALUATION OF TCP AND UDP
1. Write tcl script to do evaluate the performance of TCP and UDP sharing a bottleneck
link
1. Create six nodes and the links between the nodes as
a. 0  2 2Mb 10 ms duplex link
b. 12 2Mb 10 ms duplex link
c. 23 0.3Mb 100ms simplex link
d. 3 2 0.3Mb 100ms simplex link (link 23 is a bottleneck )
e. 34 0.5Mb 40ms duplex link
f. 3 5 0.5Mb 40ms duplex link
2. Align the nodes properly.
3. Set Queue Size of link (n2-n3) to 10 (or) 5.
4. Setup a TCP connection over 0 and 4 and its flow id, window size, packet size
5. Setup a UDP connection over 1 and 5 with flow id, type, packet size, rate, random fields
6. Set different colors for TCP and UDP.
7. Run the simulation for 5 seconds, and show the simulation in network animator and in trace file.

Analyze the performance of TCP and UDP from the simulation.