If I have a stub area and have 2 ABRs. lets say they are advertising a default route with a cost. Will the link cost connecting to the ABRs will be added to the advertised cost? How is the cost added to the advertised route? is it at ingress of a router or when the router is advertising the route?
The ABR will advertise a default route with a cost of 1 this is the default and you can sets the cost of the advertised default route by (area 1 default-cost) and any Router inside the stub area will add the ingress interface cost to received route cost.
are you sure , cause in my case the router advertised by ABR was not appended by the link cost in a stub network and was the name what I advertised it as....
Check below link you will see total cost for default route is 65 (1 is the cost advertised by ABR and 64 added by the receiver the ingress interface cost).
