Operation Manual – Routing ProtocolH3C S9500 Series Routing Switches Chapter 7 IP Routing Policy Configuration7-10II. Configuring to filter the advertised routesYou may define a route advertisement policy to filter advertised routing information.This can be done by referencing an ACL or IP prefix-list to filter routing information thatdoes not meet the conditions, or by specifying a protocol to filter routing information ofthat protocol only.Perform the following configuration in routing protocol view.Table 7-9 Configure to filter the advertised routesOperation CommandConfigure to filter the routesadvertised by the protocolfilter-policy { acl-number | ip-prefixip-prefix-name } export [ routing-protocol ]Cancel the filtering of the routesadvertised by the protocolundo filter-policy { acl-number | ip-prefixip-prefix-name } export [ routing-protocol ]By far, the route policy supports importing the routes discovered by the followingprotocols into the routing table:direct: The hop (or host) to which the local interface is directly connected.static: Route configured staticallyrip: Route discovered by RIPospf: Route discovered by OSPFospf-ase: External route discovered by OSPFospf-nssa: NSSA route discovered by OSPFisis: Route discovered by IS-ISbgp: Route acquired by BGPBy default, the filtering of the received and advertised routes will not be performed.7.3 Displaying and Debugging the Routing PolicyAfter the above configuration, execute the display command in any view to display therunning of the routing policy configuration, and to verify the effect of the configuration.Table 7-10 Display and debug the route policyOperation CommandDisplay the routing policy display route-policy[ route-policy-name ]