“OSPF is a link-state based routing protocol. It is designed to be run internal to a single Autonomous System. Each OSPF router maintains an identical database describing the Autonomous System’s topology. From this database, a routing table is calculated by constructing a shortest-path tree. OSPF recalculates routes quickly in the face of topological changes, utilizing a minimum of routing protocol traffic. OSPF provides support for equal-cost multipath. An area routing capability is provided, enabling an additional level of routing protection and a reduction in routing protocol traffic.” –rfc1247
Relevant Configuration
Enable Ip routing
switch(config)# ip routing
Configure ospf protocol
switch(config)# protocol ospf
switch(config)#. router ospf
Associate area to vlan interface
switch(config)# interface vlan 10
switch(config interface vlan 10)# no shutdown
switch(config interface vlan 10)# ip address 10.10.10.1/24
switch(config interface vlan 10)# ip ospf area 0
Show Commands to Validate Functionality
show ip ospf
Expected Results