User's Manual

Configuring OSPF
OSPF Configuration Examples
IPC-241
Cisco IOS IP Configuration Guide
To restart an OSPF process, use the following command in EXEC mode:
OSPF Configuration Examples
The following sections provide OSPF configuration examples:
• OSPF Point-to-Multipoint Example
• OSPF Point-to-Multipoint, Broadcast Example
• OSPF Point-to-Multipoint, Nonbroadcast Example
• Variable-Length Subnet Masks Example
• OSPF Routing and Route Redistribution Examples
• Route Map Examples
• Changing OSPF Administrative Distance Example
• OSPF over On-Demand Routing Example
• LSA Group Pacing Example
• Block LSA Flooding Example
• Ignore MOSPF LSA Packets Example
OSPF Point-to-Multipoint Example
In Figure 41, the router named Mollie uses data-link connection identifier (DLCI) 201 to communicate
with the router named Neon, DLCI 202 to the router named Jelly, and DLCI 203 to the router named
Platty. Neon uses DLCI 101 to communicate with Mollie and DLCI 102 to communicate with Platty.
Platty communicates with Neon (DLCI 401) and Mollie (DLCI 402). Jelly communicates with Mollie
(DLCI 301). Configuration examples follow the figure.
Router# show ip ospf neighbor [interface-name]
[neighbor-id] detail
Displays OSPF neighbor information on a per-interface basis.
Router# show ip ospf request-list [neighbor]
[interface] [interface-neighbor]
Displays a list of all LSAs requested by a router.
Router# show ip ospf retransmission-list
[neighbor] [interface] [interface-neighbor]
Displays a list of all LSAs waiting to be resent.
Router# show ip ospf [process-id]summary-address
Displays a list of all summary address redistribution information
configured under an OSPF process.
Router# show ip ospf virtual-links
Displays OSPF-related virtual links information.
Command Purpose
Command Purpose
Router# clear ip ospf [pid] {process |
redistribution | counters [neighbor
[neighbor-interface]
[neighbor-id]]}
Clears redistribution based on the OSPF routing process ID. If
the pid option is not specified, all OSPF processes are cleared.