Ospf Interface Parameters - Cisco ONS 15454 SDH Configuration Manual

Chapter 11 Configuring Networking Protocols

OSPF Interface Parameters

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.
The ip ospf interface configuration commands are all optional.
Note
Beginning in privileged EXEC mode, follow these steps to modify OSPF interface parameters:
Command
Step 1
Router# configure terminal
Step 2
Router(config)# interface
interface-id
Step 3
Router(config-if)# ip ospf cost
Step 4
Router(config-if)# ip ospf
retransmit-interval seconds
Step 5
Router(config-if)# ip ospf
transmit-delay seconds
Step 6
Router(config-if)# ip ospf priority
number
Step 7
Router(config-if)# ip ospf
hello-interval seconds
Step 8
Router(config-if)# ip ospf
dead-interval seconds
Step 9
Router(config-if)# ip ospf
authentication-key key
Step 10
Router(config-if)# ip ospf message
digest-key keyid md5 key
Cisco ONS 15454 and Cisco ONS 15454 SDH Ethernet Card Software Feature and Configuration Guide, R8.0
Purpose
Enters 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 determine the OSPF
designated router for a network. The range is from 0 to 255.
The default is 1.
(Optional) Sets the number of seconds between hello
packets sent on an OSPF interface. The value must be the
same for all nodes on a network. The range is
1 to 65535 seconds. The default is 10 seconds.
(Optional) Sets the number of seconds after the last device
hello packet was seen before its neighbors declare the
OSPF router to be down. The value must be the same for all
nodes on a network. The range is 1 to 65535 seconds. The
default is 4 times the hello interval.
(Optional) Assigns a password to be used by neighboring
OSPF routers. The password can be any string of
keyboard-entered characters up to 8 bytes in length. All
neighboring routers on the same network must have the
same password to exchange OSPF information.
(Optional) Enables authentication.
keyid—Identifier from 1 to 255.
•
key—Alphanumeric password of up to 16 bytes.
•
Configuring OSPF
11-13