Python – Kirk Byers Course Week 2 Part 3

This post will describe the exercises and solutions for week two of Kirk Byers Python for Network Engineers.

The next excercise is to work with output from “show ip bgp”:

III. You have the following four lines from 'show ip bgp':

entry1 = "*  1.0.192.0/18   157.130.10.233        0 701 38040 9737 i"
entry2 = "*  1.1.1.0/24     157.130.10.233        0 701 1299 15169 i"
entry3 = "*  1.1.42.0/24    157.130.10.233        0 701 9505 17408 2.1465 i"
entry4 = "*  1.0.192.0/19   157.130.10.233        0 701 6762 6762 6762 6762 38040 9737 i"

Note, in each case the AS_PATH starts with '701'.

Using split() and a list slice, how could you process each of these such that--for each entry, you return an ip_prefix and the AS_PATH (the ip_prefix should be a string; the AS_PATH should be a list):

Your output should look like this:

ip_prefix             as_path                                           
1.0.192.0/18          ['701', '38040', '9737']                          
1.1.1.0/24            ['701', '1299', '15169']                          
1.1.42.0/24           ['701', '9505', '17408', '2.1465']                
1.0.192.0/19          ['701', '6762', '6762', '6762', '6762', '38040', '9737']

Ideally, your  Continue reading

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