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1. Enter system view.
system-view
N/A
2. Enter OSPF view.
ospf
[
process-id |
router-id
router-id
|
vpn-instance
vpn-instance-name ]
*
N/A
3. Configure ASBR route
summarization.
asbr-summary
ip-address
{ mask-length | mask } [
cost
cost-value |
not-advertise
|
|
tag ] *
By default, route summarization is
not configured on an ASBR.
Configuring received OSPF route filtering
Perform this task to filter routes calculated using received LSAs.
The following filtering methods are available:
• Use an ACL or IP prefix list to filter routing information by destination address.
• Use the gateway keyword to filter routing information by next hop.
• Use an ACL or IP prefix list to filter routing information by destination address. At the same time
use the gateway keyword to filter routing information by next hop.
• Use a routing policy to filter routing information.
To configure OSPF to filter routes calculated using received LSAs:
1. Enter system view.
N/A
2. Enter OSPF view.
ospf
[
process-id |
router-id
router-id |
vpn-instance
vpn-instance-name ] *
N/A
3. Configure OSPF to
filter routes
calculated using
received LSAs.
filter-policy
{ ipv4-acl-number [
gateway
prefix-list-name ] |
gateway
prefix-list-name
|
prefix-list
prefix-list-name [
gateway
prefix-list-name ] |
route-policy
route-policy-name }
import
By default, OSPF accepts all
routes calculated using received
LSAs.
Configuring Type-3 LSA filtering
Perform this task to filter Type-3 LSAs advertised to an area on an ABR.
To configure Type-3 LSA filtering:
1. Enter system view.
system-view
N/A
2. Enter OSPF view.
ospf
[
process-id |
router-id
router-id
|
vpn-instance
vpn-instance-name ]
*
N/A
3. Enter area view.
area-id N/A
4. Configure Type-3 LSA
filtering.
filter
{ ipv4-acl-number |
prefix-list
prefix-list-name |
route-policy
route-policy-name } {
export
|
}
By default, the ABR does not
filter Type-3 LSAs.
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