Cisco ONS 15454 - Configuring OSPF

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Cisco ONS 15454 SONET/SDH ML-Series Multilayer Ethernet Card Software Feature and Configuration Guide, R4.0
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Chapter 10 Configuring Networking Protocols
Configuring IP Routing
Note In general, disabling split horizon is not recommended unless you are certain that your application
requires it to properly advertise routes.
If you want to configure an interface running RIP to advertise a summarized local IP address pool on a
network access server for dial-up clients, use the ip summary-address rip interface configuration
command.
Note If split horizon is enabled, neither autosummary nor interface IP summary addresses are advertised.
Beginning in privileged EXEC mode, follow these steps to set an interface to advertise a summarized
local IP address pool and to disable split horizon on the interface:
To disable IP summarization, use the no ip summary-address rip router configuration command.
Note If split horizon is enabled, neither autosummary nor interface summary addresses (those configured with
the ip summary-address rip router configuration command) are advertised.
Configuring OSPF
This section briefly describes how to configure Open Shortest Path First (OSPF) Protocol. For a
complete description of the OSPF commands, refer to the “OSPF Commands” chapter of the Cisco IOS
IP and IP Routing Command Reference publication.
OSPF is an IGP designed expressly for IP networks, supporting IP subnetting and tagging of externally
derived routing information. OSPF also allows packet authentication and uses IP multicast when sending
and receiving packets. The Cisco implementation supports RFC 1253, the OSPF Management
Information Base (MIB).
The Cisco implementation conforms to the OSPF Version 2 specifications with these key features:
Command Purpose
Step 1
Router# configure terminal
Enters global configuration mode.
Step 2
Router(config)# interface
interface-id
Enters interface configuration mode, and specifies the
Layer 3 interface to configure.
Step 3
Router(config-if)# ip address
ip-address subnet-mask
Configures the IP address and IP subnet.
Step 4
Router(config-if)# ip
summary-address rip
ip address
ip-network mask
Configures the IP address to be summarized and the IP
network mask.
Step 5
Router(config-if)# no ip split
horizon
Disables split horizon on the interface.
Step 6
Router(config-if)# end
Returns to privileged EXEC mode.
Step 7
Router# show ip interface
interface-id
Verifies your entries.
Step 8
Router# copy running-config
startup-config
(Optional) Saves your entries in the configuration file.