Análise de tolerância a falhas no protocolo SNMP

• André Peres UFRGS
• Ingrid Jansch-Pôrto UFRGS

DOI: https://doi.org/10.5753/wtf.1998.23490

Abstract

In this paper, we present the main results of the analysis of the communication protocol SNMP - Simple Network Management Protocol, considering its fault tolerance and real-time systems operational characteristics. Real-time computational systems have pre-defined deadlines for tasks accomplishment, being the limits imposed by the environment to be controlled. It is important to stand out that, in this kind of system, in general, control appears as a critical element. The SNMP protocol is a network management protocol which has management nodes, responsible for collecting and analyzing the information of the network elements; and agent nodes, which are a group of variables that represent the current node state. When the manager requests information to the nodes, these ones are being monitored, when changing these values, the nodes are being controlled. The use of the SNMP protocol in real-time applications with fault tolerance characteristics depends on factors which are related to the way that this protocol will accomplish its functions. This paper analyzes the necessary characteristics for using SNMP in this kind of system considering theoretical information.

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