C613-50631-01 Rev A Command Reference for IE340 Series 1142
AlliedWare Plus™ Operating System - Version 5.5.3-0.x
OSPF COMMANDS
IP
OSPF DATABASE-FILTER
ip ospf database-filter
Overview This command turns on the LSA database-filter for a particular interface.
The no variant of this command turns off the LSA database-filter.
Syntax
ip ospf [<ip-address>] database-filter all out
no ip ospf [<ip-address>] database-filter
Default All outgoing LSAs are flooded to the interface.
Mode Interface Configuration for a VLAN interface.
Usage notes 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 the
ip ospf database-filter command to block flooding of LSAs over specified
interfaces.
Example To stop flooding new LSAs on the VLAN interface vlan1, use the commands:
awplus# configure terminal
awplus(config)# interface vlan1
awplus(config-if# ip ospf database-filter all out
Parameter Description
<ip-address> The IPv4 address of the interface, in dotted decimal notation.