Hi All :
I have a trouble about the concept of BGP aggregate addrss that found in
RS certification guide 4th edition :
{If the component subnets inside the summary all have the same AS_SEQ, it sets the new
summary route’s AS_SEQ to be exactly like the AS_SEQ of the component subnets.
If the AS_SEQ of the component subnets differs in any way, it sets the AS_SEQ of the new
summary route to null
Conversely, if the aggregate does not empty the AS_SEQ,
the router does not create the AS_SET, as it is not needed for loop prevention in that case} ... read more »
