Huawei Quidway NetEngine80E Configuration Manual page 326

HUAWEI NetEngine80E/40E Router
Configuration Guide - IP Routing
Context
When multiple links exist between two routers, you can configure the local router to filter the
LSAs to be sent. This prevents unnecessary LSA transmission and saves bandwidth resources.
Procedure
Step 1 Run:
system-view
The system view is displayed.
Step 2 Run:
interface interface-type interface-number
The interface view is displayed.
Step 3 Run any of the following commands as required:
l Based on the basic ACL:
Issue 02 (2014-09-30)
1. Run:
ospf filter-lsa-out { all | { summary [ acl { acl-number | acl-name } ] |
ase [ acl { acl-number | acl-name } ] | nssa [ acl { acl-number | acl-
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name } ] } }
The LSAs to be sent are filtered.
2. Run:
quit
Return to the system view.
3. Run:
acl { [ number ] acl-number1 | name acl-name basic [ number acl-number2 ] }
[ match-order { auto | config } ]
The basic ACL view is displayed.
4. Run:
rule [ rule-id ] { deny | permit } [ fragment-type fragment-type-name |
source { source-ip-address source-wildcard | any } | time-range time-name |
vpn-instance vpn-instance-name ]
The rule for the basic ACL is configured.
When a filtering policy of a routing protocol is used to filter routes:
– If the action specified in an ACL rule is permit, a route that matches the rule will
be received or advertised by the system.
– If the action specified in an ACL rule is deny, a route that matches the rule will not
be received or advertised by the system.
– If a route has not matched any ACL rules, the route will not be received or advertised
by the system.
– If an ACL does not contain any rules, all routes matching the route-policy that
references the ACL will not be received or advertised by the system.
– If the ACL referenced by the route-policy does not exist, all routes matching the
route-policy will be received or advertised by the system.
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5 OSPF Configuration
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