Command
IP OSPF Network Broadcast
Use
This command manually sets the OSPF network type to broadcast, this is a default for ethernet links.
The Broadcast network type has a DR election.
Syntax
Router(config-if)#ip ospf network broadcast
Example
In this example, we will configure R4’s frame-relay link to use the broadcast network type
First we’ll configure OSPF on R1, R3, and R4 for all interfaces.
R4(config-router)#router ospf 1 |
After a couple minutes R4 still doesn’t have any adjacencies
R4(config-router)#do show ip ospf neighbor R4(config-router)# |
Notice that the OSPF network type is non_broadcast so it will require unicast updates.
R4(config)#do show ip ospf interface s0/0 |
After we configure the broadcast network type on all routers, the adjacencies form.
R4(config)#int s0/0 R4(config-if)# Neighbor ID Pri State Dead Time Address Interface |