I ask question of OSPF cost.
I want to know when add OSPF cost of interface.
When I configure 'ip ospf cost' on router's interface,
is OSPF cost added by incoming interface or outgoing interface?
The OSPF cost is the outgoing cost for packets transmitted from this interface (used when executing the SPF tree by adding it to the cost of relevant path to the destination), do you mean with your statement that it is added to the cost of the incoming interface to calculate the whole path cost.