OSPF Configuration Commands 201
filter-policy export Syntax
filter-policy {
acl_number
| gateway gateway-ip | ip-prefix
ip_prefix
_n
ame
} export [
routing
_
protocol
]
undo filter-policy {
acl_number
| gateway gateway-ip | ip-prefix
ip_prefix-name
} export [
routing_protocol
]
View
OSPF View
Parameter
acl_number
Enter an access control list number.
ip_prefix_name
: Enter the name of the address prefix list.
routing_protocol
Enter the protocol advertising the routing information. This
can be one of the following:
direct, rip and static.
Description
Using the filter-policy export command, you can configure how OSPF filters
the advertised routing information. Only the routing information that meets these
conditions is advertised.
Using the undo filter-policy export command, you can cancel the filtering
rules. By default, no filtering of the distributed routing information is performed.
Related commands: acl, ip ip-prefix.
Example
To configure OSPF to only advertise the routing information permitted by acl 2000,
enter the following commands:
<SW5500>system-view
System View: return to User View with Ctrl+Z.
[SW5500]acl number 2000
[SW5500-acl-basic-2000]rule permit source 11.0.0.0 0.255.255.255
[SW5500-acl-basic-2000]rule deny source any
[SW5500-acl-basic-2000]quit
[SW5500]router id 1.1.1.1
[SW5500]ospf
Cost Route cost of the interface
Type Type: virtual link
Transit Area ID of transit area tha the virtual link passes, and it cannot be backbone
area, Stub area, or NSSA area
Timers OSPF timers:
■ Hello — Interval of hello packets
■ Dead — Interval of dead neighbors
■ Poll — Interval of poll
■ Retransmit — Interval of retransmitting LSA
■ Transmit delay — Delay time of transmitting LSA
Table 38 Output Description of the display ospf vlink Command
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