HP VSR1000 Configuration Guide

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Configuring OSPF inbound route filtering
OSPF calculates routes by using LSAs. The calculated routes can be filtered and only permitted routes are
installed into the OSPF routing table.
OSPF provides the following filtering methods:
• Filters routing information by destination address through ACLs and IP address prefixes
• Filters routing information by next hop through the filtering criteria configured with the gateway
keyword
• Filters routing information by destination address through ACLs and IP address prefixes and by next
hop through the filtering criteria configured with the gateway keyword
• Filters routing information by routing policy specified by the route-policy keyword
For more information about IP prefix list and routing policy, see "Configuring routing policies."
T
o configure inbound route filtering:
Ste
p
Command Remarks
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 inbound
route filtering.
filter-policy { acl-number [ gateway
ip-prefix-name ] | gateway ip-prefix-name |
ip-prefix ip-prefix-name [ gateway
ip-prefix-name ] | route-policy
route-policy-name } import
Not configured by default.
Configuring ABR Type-3 LSA filtering
You can configure an ABR to filter Type-3 LSAs advertised to an area.
To configure Type-3 LSA filtering on an ABR:
Ste
p
Command Remarks
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 area-id N/A
4. Configure ABR Type-3 LSA
filtering.
filter { acl-number | ip-prefix
ip-prefix-name } { import | export }
Not configured by
default.
Configuring an OSPF cost for an interface
You can configure an OSPF cost for an interface by using either of the following methods:
• Configure the cost value in interface view.
• Configure a bandwidth reference value for the interface. OSPF computes the cost with this formula:
Interface OSPF cost = Bandwidth reference value (100 Mbps)/Interface bandwidth (Mbps). If the

HP VSR1000 Specifications

General

Brand	HP
Model	VSR1000
Category	Network Router
Language	English