Management Information Base for Network Management of TCP/IP-based internets: MIB-II

1. Status of this Memo This memo defines the second version of the Management Information Base (MIB-II) for use with network management protocols in TCP/IP-based internets. In particular, together with its companion memos which describe the structure of management information (RFC 1155) along with the network management protocol (RFC 1157) for TCP/IP-based internets, these documents provide a simple, workable architecture and system for managing TCP/IP-based internets and in particular the Internet community. This document on MIB-II incorporates all of the technical content of RFC 1156 on MIB-I and extends it, without loss of compatibilty. However, MIB-I as described in RFC 1156 is full Standard Protocol of the Internet, while the MIB-II described here is Proposed Standard Protocol of the Internet. This memo defines a mandatory extension to the base MIB (RFC 1156) and is a Proposed Standard for the Internet community. The extensions described here are currently Elective, but when they become a standard, they will have the same status as RFC 1156, that is, Recommended. The Internet Activities Board recommends that all IP and TCP implementations be network manageable. This implies implementation of the Internet MIB (RFC 1156 and the extensions in RFC 1158) and at least one of the two recommended management protocols SNMP (RFC 1157) or CMOT (RFC 1095). This version of the MIB specification, MIB-II, is an incremental refinement of MIB-I. As such, it has been designed according to two criteria: first, changes have been made in response to new operational requirements in the Internet; and, second, the changes are entirely upwards compatible in order to minimize impact on the network as the managed nodes in the Internet transition from MIB-I to MIB-II. It is expected that additional MIB groups and variables will be defined over time to accommodate the monitoring and control needs of new or changing components of the Internet.