configure ospfv3 area interarea-filter

configure ospfv3 area area_identifier interarea-filter [policy_map |none]

Description

Configures an inter-area filter policy.

Syntax Description


`area_identifier`	Specifies the OSPFv3 target area.
`policy_map`	Specifies a policy.
none	Specifies not to apply an inter-area filter (removes the existing policy, if any).

Default

N/A.

Usage Guidelines

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.

Policy files for this command will only recognize the following policy attributes:

Match attributes:
- nlri IPv6-address/mask-len
Action (set) attributes:
- 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:

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;
	}
}

Example

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

History

This command was first available in ExtremeXOS 11.2.

Platform Availability

This command is available on platforms with an Advanced Edge or Base license, or higher, as described in the ExtremeXOS 32.1 Feature License Requirements document.