Hello, On the task 13.2 I don't understand how the solution guide comes to the conclusion that 3 sub-as are mandatory. The requirement are to not use RR neither fully-mesh and R2 should only have one ebgp peering and one ibgp peering. Having only 2 sub-as (R2-R4 and R5-R6) seems to meet the requirement,
The DSG mention an upcoming requirements in favor of 3 sub-as but without saying which is This requirement. If someone have the clue ? Thanks for your answer Regards
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