Optional) Configuring Ospfv3 To Filter Lsas In An Area - Huawei Quidway NetEngine80E Configuration Manual

HUAWEI NetEngine80E/40E Router
Configuration Guide - IP Routing
You can configure OSPFv3 to filter a certain type of routing information by specifying the
protocol. If protocol is not specified, OSPFv3 filters all the imported routes.
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6.7.5 (Optional) Configuring OSPFv3 to Filter LSAs in an Area

Filtering LSAs in an area can prevent unnecessary LSA transmission. This reduces the size of
the LSDB on the neighboring router and speeds up network convergence.
Context
After filtering conditions are set for the incoming or outgoing Type 3 LSAs (Inter-Area-Prefix
LSAs) in an area, only the Type 3 LSAs that meet the filtering conditions can be received or
advertised.
This function is applicable only to the ABR.
Procedure
Step 1 Run:
system-view
The system view is displayed.
Step 2 Run:
ospfv3 [ process-id ]
The OSPFv3 process view is displayed.
Step 3 Run:
area area-id
The OSPFv3 area view is displayed.
Step 4 Filter incoming or outgoing Type 3 LSAs in the area.
l Filter incoming Type 3 LSAs in the area, run any of the following commands as required:
Issue 02 (2014-09-30)
NOTE
The filter-policy command takes effect only on the routes imported through the import-route command
by the ASBR, that is, filters the imported routes. The routes that are filtered out do not generate LSAs and
cannot be advertised by OSPFv3. If the import-route command is not configured to import other external
routes (including OSPFv3 devices in different processes), the filter-policy command does not takes effect.
– Configure a basic ACL:
1. Run:
filter { acl6-number | acl6-name acl6-name } import
The filter incoming Type 3 LSAs in the area are filtered.
2. Run:
quit
Return to the OSPFv3 view.
3. Run:
quit
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