Configuring Ospf Interfaces - Cisco Catalyst 9500 series Configuration Manual

Configuring IP Unicast Routing

Configuring OSPF Interfaces

You can use the ip ospf interface configuration commands to modify interface-specific OSPF parameters.
You are not required to modify any of these parameters, but some interface parameters (hello interval, dead
interval, and authentication key) must be consistent across all routers in an attached network. If you modify
these parameters, be sure all routers in the network have compatible values.
Note The ip ospf interface configuration commands are all optional.
Procedure
Step 1
Step 2
Step 3
Step 4
Step 5
Step 6
Command or Action
configure terminal
Example:
Device# configure terminal
interface interface-id
Example:
Device(config)# interface
gigabitethernet 1/0/1
ip ospf cost
Example:
Device(config-if)# ip ospf 8
ip ospf retransmit-interval seconds
Example:
Device(config-if)# ip ospf
transmit-interval 10
ip ospf transmit-delay seconds
Example:
Device(config-if)# ip ospf
transmit-delay 2
ip ospf priority number
Example:
Device(config-if)# ip ospf
priority 5
Routing Configuration Guide, Cisco IOS XE Everest 16.6.x (Catalyst 9500 Switches)
Configuring OSPF Interfaces
Purpose
Enters the global configuration mode.
Enters interface configuration mode, and specifies the
Layer 3 interface to configure.
(Optional) Explicitly specifies the cost of sending a
packet on the interface.
(Optional) Specifies the number of seconds between
link state advertisement transmissions. The range is 1
to 65535 seconds. The default is 5 seconds.
(Optional) Sets the estimated number of seconds to wait
before sending a link state update packet. The range is
1 to 65535 seconds. The default is 1 second.
(Optional) Sets priority to help find the OSPF designated
router for a network. The range is from 0 to 255. The
default is 1.
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