The Performance Management Ot Facilities In IPv6 Network With SNMPv3

With the expansion in scale and the increasing in complexity of computer networks, network management becomes more and more important. SNMP (Simple Network Management Protocol) provides a kind of network management method capable of being operated coordinately and supporting many ISPs. It is very popular because of its simplicity and scalability. SNMPv3 (SNMP version 3) has new security features and constructs a overall frame for SNMP's development in the future. IPv6 is a communication protocol for the next generation Internet. Based on IPv4, it has all the functions of IPv4. Besides, it has some new features such as 128-bit large address space, supporting for mobile devices, more flexible connection mode,strengthened security, etc. IPv6 will predictably become very popular in the near future, which would probably cause the incompetence of the existing network management software. As the main method to manage networks, SNMP will not be substituted by other methods in a long time. Therefore, it is of great importance to develop SNMP network management tool based on IPv6.In this paper, general compositive elements of network management system and SNMPv3 protocol are proposed. A network performance management system based on SNMP is designed. Following RFC2571-RFC2575 (SNMP v3), RFC2553 and RFC 2292, by analyzing NET-SNMP package, the method of transplanting IPv4 program is discussed by analyzing the change of address express and main data structure while SNMPvS transforms from IPv4 to IPv6. The analysis of the change of performance is provided.