Filter-Policy Export - 3Com 8807 Command Reference Manual

LDP Configuration Commands 717
from OSPF internal routes, it is required to restore the attributes of BGP routes
when they are imported to OSPF at the remote end. To achieve this goal, we can
configure a Domain-id for each OSPF domain. A Domain-id is attached to a
BGP/VPN route when an OSPF route is imported into BGP/VPN for transmission
over BGP/VPN routes. Then when BGP routes are imported to the peer PE, LAS
values are filled in according to the extended community attributes. If the received
BGP VPN IP routes have the same Domain-id, they are from the same VPN instance
route.
By default, Domain-id is 0.
c
CAUTION: The specified Domain-id will not take effect until the reset ospf
command is executed.
Example
# Set Domain-id 100 to OSPF process 100.
[3Com-ospf-100] domain-id 100
[3Com-ospf-100] domain-id 0.0.0.100

filter-policy export

Syntax
filter-policy { acl-number | ip-prefix ip-prefix-name } export [ protocol ]
undo filter-policy { acl-number | ip-prefix ip-prefix-name } export [ protocol ]
View
VPNv4 sub-address family view, VPN instance sub-address family view
Parameter
acl-number: ACL number, ranging from 2000 to 3999, matching the destination
address of routing.
ip-prefix-name: Name of IP prefix to match the destination of routing information.
protocol: Routing protocol whose routing information will be filtered. You can
specify one of the following protocols: direct, static, isis, ospf, ospf-ase, ospf-nssa,
or rip. If you specify ospf, ospf-ase, or ospf-nssa, the OSPF process ID is needed.
Description
Use the filter-policy export command to configure to filter routing information
redistribute by a certain protocol. Only the filtered routing information can be
advertised. Use the undo filter-policy export command to cancel the
configuration.
By default, the redistribute routing will not be filtered.
Related command: filter-policy import.
Example
# Define that only the routes that can pass the filtering of ACL 3 can be received
by BGP.
[3Com-bgp-af-vpn-instance] filter-policy 3 export