The purpose of this Appendix is to provide more information on selected topics that have been referenced earlier in the book:
The standards introduced here are the Simple Network Management Protocol (SNMP), the Common Open Policy Service (COPS), and the Network Configuration (NETCONF) protocol, respectively.
The OSI approach to network management in the Internet was neither ignored nor completely abandoned. It was, indeed, simplified and constrained to focus on smaller, specific problems. Until fairly recently, the main objective of network management was monitoring—not configuration management. As we will soon see, the SNMP protocol ended up being much less than universal; a new set of protocols was needed for configuration management. In addition, access management (and overall security of network management) was not systematically approached until SNMPv3.
The 1990 IETF RFC 11551 defines the Structure of Management Information (SMI). As in the OSI, the MIBs were defined using ASN.1, but the ...