Configures an inter-area filter policy.
| area_identifier | Specifies the OSPFv3 (Open Shortest Path First version 3) target area. |
| policy_map | Specifies a policy. |
| none | Specifies not to apply an inter-area filter (removes the existing policy, if any). |
N/A.
ExtremeXOS OSPFv3 can apply an inter-area policy to filter some inter-area-prefix-LSAs and inter-area-router-LSAs from other areas. This can reduce the size of link state database of routers belonging to the area.
Using the none mode specifies that no external filter is applied.
nlri IPv6-address/mask-len
permit
deny
Any other policy attribute will not be recognized and will be ignored.
The following is an example of an inter-area filter policy file:
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entry one {
if match any{
nlri 2001:db8:3e5c::/48;
nlri 2001:db8:2146:2341::/64;
} then {
deny;
}
}
entry two {
if match any{
nlri 2001:db8:444::/48;
nlri 2001:db8:541f:65bd::/64;
} then {
permit;
}
}
The following command configures an inter-area filter policy, nosales for area 1.2.3.4:
configure ospfv3 area 1.2.3.4 interarea-filter nosales
This command was first available in ExtremeXOS 11.2.
This command is available on platforms with an Advanced Edge or Core license as described in the ExtremeXOS 22.7 Feature License Requirements document.