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Exercise 1
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1. Choose one AS-level BGP Internet topology
2. Load the topology
3. Print the number of: (i) ASes and (ii) BGP sessions between them
4. Print the ASN of the autonomous system with the highest degree
5. Compute the density function of the node degree
6. Write the density function to a file
7. Plot the density function with gnuplot
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Exercise 2
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1. Generate a random graph with the same number of ASes of the topology
selected in Exercise 1. Use the Barabasi-Albert preferential attachment
with one outgoing edge per node
2. Compute the density function of the node degree
3. Write the density function to a file
4. Plot the density function with gnuplot and compare it with that of the
topology of Exercise 1