if_data64 Declarationstruct if_data64 { ... }; TopicsInstance Propertiesifi_addrlenifi_baudrateifi_collisionsifi_hdrlenifi_ibytesifi_ierrorsifi_imcastsifi_ipacketsifi_iqdropsifi_lastchangeifi_metricifi_mtuifi_noprotoifi_obytesifi_oerrorsifi_omcastsifi_opacketsifi_physicalifi_recvquotaifi_recvtimingifi_typeifi_typelenifi_unused1ifi_xmitquotaifi_xmittiming