The NPort 5000 Series supports MIB-II and hence we do not provide a private MIB file for this product series. You can use the RFC 1213, Management Information Base for Network Management of TCP/IP-based internets, for network management. A list of the SNMP variables supported for RFC 1213 MIB-II is available in the Appendix section of the NPort 5000 Series User's Manual. RFC 1213 is a standard MIB, which is maintained by the Internet Engineering Task Force (IETF). For additional details; visit http://tools.ietf.org/html/rfc1213 T.