Chapter 6: Routing Policy Configuration Guide6 - 18SSR User Reference ManualThe is the identifier of the import-source that determines the sourceof the imported routes. If no routes from a particular source are to be imported, then noadditional parameters are required.The, if specified, is the identifer of the route-filter associated with thisimport-policy. If there is more than one route-filter for any import-source, then the ip-router policy import source command should be repeated for each.Creating an Import SourceImport sources specify the routing protocol from which the routes are imported. Thesource may be RIP or OSPF.To create an import source, enter one of the following commands in Configure mode:Creating a Route FilterRoute policies are defined by specifying a set of filters that will match a certain routeby destination, or by destination and mask.To create route filters, enter the following command in Configure mode:Creating an Aggregate RouteRoute aggregation is a method of generating a more general route, given the presenceof a specific route. The routing process does not perform any aggregation unlessexplicitly requested. Aggregate-routes can be constructed from one or more of thefollowing building blocks:• Aggregate-Destination - This component specifies the aggregate/summarized route.It also specifies the attributes associated with the aggregate route. The preference tobe associated with an aggregate route can be specified using this component.• Aggregate-Source - This component specifies the source of the routes contributingto an aggregate/summarized route. It can also specify the preference to be associatedCreate a RIP import destination. ip-router policy create rip-import-source <name>Create an OSPF import destination. ip-router policy create ospf-import-source <name>Create a route filter. ip-router policy create filter <name-id> network