In this exercise, you are asked to explore the prefix length distribution of the current BGP routing table. First, browsing at http://thyme.apnic.net/current/ , you will find some interesting analysis...

In this exercise, you are asked to explore the prefix length distribution of the current BGP routing table. First, browsing at http://thyme.apnic.net/current/ , you will find some interesting analysis of BGP routing tables seen by APNIC routers. In particular, “number of prefixes announced per prefix length” will let you know the number of routing entries of a backbone router and the distribution of prefix length of these routing entries.

1. How many routing entries does a backbone router own on the day you visit the URL?

2. Draw a graph to show the distribution of prefix length (length varies from 1 to 32) in a logarithmic scale because the number of prefixes announced varies from 0 to tens of thousands.