3. [6 marks] Consider an Autonomous System consisting of two route reflectors RR1 and RR2 shown...

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3. [6 marks] Consider an Autonomous System consisting of two route reflectors RR1 and RR2 shown in figure 1. RR1 forms a cluster with its client A, and RR2 forms a cluster with its client B. The IGP and iBGP links along with IGP link costs are shown in the figure below. Both RR1 and RR2 receive advertisements from their respective external peers for a prefix N and both advertise this prefix to their respective clients. Explain briefly why this configuration is error prone. Network Prefix N Network Prefix N RR RR IGP Link IGP Link Costs RR1-A: 7 RR2-B: 7 RR1-B: 3 RR2-A: 3 A-B: 2 Client A 2 Client B IBGP Link Route Advertisement Figure 1: A Route Reflector Configuration 3. [6 marks] Consider an Autonomous System consisting of two route reflectors RR1 and RR2 shown in figure 1. RR1 forms a cluster with its client A, and RR2 forms a cluster with its client B. The IGP and iBGP links along with IGP link costs are shown in the figure below. Both RR1 and RR2 receive advertisements from their respective external peers for a prefix N and both advertise this prefix to their respective clients. Explain briefly why this configuration is error prone. Network Prefix N Network Prefix N RR RR IGP Link IGP Link Costs RR1-A: 7 RR2-B: 7 RR1-B: 3 RR2-A: 3 A-B: 2 Client A 2 Client B IBGP Link Route Advertisement Figure 1: A Route Reflector Configuration