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Question :-

How is the aggregator attribute handled with 32-bit AS numbers?
With the same method and attribute as 16-bit AS numbers.
With the same method as 16-bit AS numbers, but using the AS4_Aggregator attribute.
Aggregation is not yet supported with 32-bit AS numbers.
By using a dummy value of 23456 in the 16-bit AS aggregator field. This value lets the routerknow it needs to read the 32-bit AS number that is contained in the nextTLV.

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