Q12 assignment 1 Networking 351

Question 12 Chapter 3 Route Aggregation Organization o 100.40.50.0/23 Organization 1 100.40.60.0/23 Aggregated Network A.B.C.D/M ISP-A Organization 2 100.40.70.0/23 Internet Organization 3 100.40.80.0/23 In the figure above, BGP is used for inter-AS routing. ISP-A is then going to advertise a single route to access all the 4 networks at the left side (i.e. networks of Organizations 0 to 3). Q1. What is the aggregated network that is advertised by ISP-A? Write down the 4 parts of the address in different input boxes. i.e. if the address is a. 1.2.3.4, write down '1' in the first box, '2' in the second box, etc. . Network Address : Mask: NOTE: Use this link for decimal-to-binary & binary-to-decimal conversion: decimal binary conversion