Version Description9.9(0.0) Introduced on the C9010.9.8(0.0) Introduced on the S3048-ON and S4048-ON.9.7(0.0) Introduced on the S6000-ON and Z9500.9.4.(0.0) Introduced on the S-Series and Z9000.Usage Information Use this command to attach an interface to a configured VRF. You can attach aninterface to either a non-default VRF or a management VRF. To assign a port-back to adefault VRF, remove VRF association from the interface. You can use this only if there isno IP address configured on the interface.There must be no prior Layer 3 configuration on the interface when configuring VRF.VRF must be enabled prior to implementing this command.You can configure an IP subnet or address on a physical or VLAN interface that overlapsthe same IP subnet or address configured on another interface only if the interfaces areassigned to different VRFs. If two interfaces are assigned to the same VRF, you cannotconfigure overlapping IP subnets or the same IP address on them.ip route-exportEnable route leaking between VRFs. Export or share IPv4 routes corresponding to one VRF with other non-default VRFs.C9000 SeriesSyntax ip route-export tag [route-map-name]Parameters route-export Enter the route-export keyword to leak or share routesbetween VRFs.tag Enter a tag (export route target) to expose routes to other VRFs.This tag acts as an identifier for exported routes. You can usethis identifier while importing these routes into another non-default VRF.route-map-name (Optional) Enter the name of the route-map to filter theexported routes.You can leak global routes for VRF. As the global RTM usuallycontains a large pool of routes, when the destination VRFimports global routes, these routes are duplicated into the VRF'sVirtual Routing and Forwarding (VRF) 2266