OSPFv2 configuration task list Tasks at a glance Enabling OSPF on the routing switch Assigning the routing switch to an OSPF area Setting OSPF network for the area Creating an OSPF virtual link for an area Configuring external route redistribution and control Configuring ranges on an ABR to reduce advertising to the backbone Influencing route choice by changing the administrative distance Configuring graceful restart of OSPF routing Configuring OSPF interface settings Configuring OSPF interface authentication Configuring OSPF virtual link settings Configuring OSPF authentication on a virtual link Configuring all OSPF interfaces as passive Viewing OSPFv2 information Clearing OSPF statistics on a switch