ip ospf database-filter
Use this command to turn on the LSA database-filter for a particular interface.
OSPF floods new LSAs over all interfaces in an area, except the interface on which the LSA arrives. This redundancy ensures robust flooding. However, too much redundancy can waste bandwidth and might lead to excessive link and CPU usage in certain topologies, resulting in destabilizing the network. To avoid this, use this command to block flooding of LSAs over specified interfaces.
Use the no parameter with this command to turn off the filter.
Command Syntax
ip ospf (A.B.C.D|) database-filter all out
no ip ospf (A.B.C.D|) database-filter
Parameters
A.B.C.D
The IP address of the interface.
Default
Disabled, all outgoing LSAs are flooded to the interface.
Command Mode
Interface mode
Applicability
This command was introduced before OcNOS version 1.3.
Examples
#configure terminal
(config)#interface eth0
(config-if)#ip ospf database-filter all out
Last modified date: 07-13-2023