Why did not 22.2.2.2 and 11.1.1.1 be select the best route between R1 and R2 with IBGP protocol ? They all have 1.1.1.1 and 2.2.2.2 route in IGP route table.(under synchronization,don't suggest no synchronization) R1:router ospf 1 network 1.1.1.1 0...