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Cisco Nexus 3548 Switch NX-OS Unicast Routing Command Reference
OL-27852-01
Chapter Unicast Routing Commands
area filter-list (OSPFv3)
area filter-list (OSPFv3)
To filter prefixes that are advertised in type 3 link-state advertisements (LSAs) between Open Shortest
Path First (OSPF) areas of an Area Border Router (ABR), use the area filter-list command. To change
or cancel the filter, use the no form of this command.
area area-id filter-list route-map map-name {in | out}
no area area-id filter-list route-map map-name {in | out}
Syntax Description
Defaults None
Command Modes Router configuration mode
Command History
Usage Guidelines Use the area filter-list command to filter Type 3 LSAs. If you apply the route map with the in keyword,
the route map filters all Type 3 LSAs that are originated by the ABR to this area, including Type 3 LSAs
that originated as a result of the area range command in another area.
If you apply the route map with the out keyword, the route map filters all Type 3 LSAs that are advertised
by the ABR to all other areas including Type 3 LSAs that originate locally as a result of the area range
command configured in this area.
The Cisco NX-OS software implicitly denies any prefix that does not match an entry in the route map.
This command requires the LAN Base Services license.
Examples This example shows how to filter prefixes that are sent from all other areas to 0.0.0.10:
switch# configure terminal
switch(config)# router ospfv3 123
switch(config-router)# address-family ipv4 unicast
switch(config-router-af)# area 0.0.0.10 filter-list route-map LSA-Filter in
switch(config-router-af)#
This example shows how change or cancel the filter:
area-id Area ID as a numeric value or the IP address.
route-map Specifies the route map policy name.
map-name Route map name. A route map name can be any alphanumeric string up to
63 characters.
in Filters networks sent to this area.
out Filters networks sent from this area.
Release Modification
5.0(3)A1(1) This command was introduced.
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