Provides common view of entire topology
Exchanges routing tables with neighbors
Calculates shortest path
Utilizes event-triggered updates
Utilizes frequent periodic updates
It supports VLSM.
It is used to route between autonomous systems.
It confines network instability to one area of the network.
It increases routing overhead on the network.
It allows extensive control of routing updates
It is simpler to configure than RIPv2.
The process id is configured improperly.
The OSPF area is configured improperly.
The network wildcard mask is configured improperly.
The network number is configured improperly.
The AS is configured improperly.
The network subnet mask is configured improperly.
All OSPF routers in an area must have the same process ID.
Only one process number can be used on the same router.
Different process identifiers can be used to run multiple OSPF processes
The process number can be any number from 1 to 65,535.
Hello packets are sent to each neighbor to determine the processor identifier.
To confine network instability to single areas of the network.
To reduce the complexity of router configuration
To speed up convergence
To lower costs by replacing routers with distribution layer switches
To decrease latency by increasing bandwidth
To reduce routing overhead
Router(config)#router ospf 1
Router(config)#router ospf 0
Router(config)#router ospf area 0
Router(config-router)#network 192.168.16.0 0.0.0.255 area 0
Router(config-router)#network 192.168.16.0 0.0.0.255 0
Router(config-router)#network 192.168.16.0 255.255.255.0 area 0