ospf

hi consider the scenario Two layer 3 switches that have two Vlans configured. OSPF is the routing protocol. The switches are trunked between each other and running HSRP. The VLANS are active only on the first layer 3 switch. I also have two switches for each of the vlans configured above with dual switch links to the each layer 3 switches for redundancy. Is there a way i can change the ospf area number of this scenario without an outage thanks