Mediation and processing layers
The retrieval of extra information from devices and the addition of the information to the entity records is conducted in two layers: the mediation and processing layers. In the mediation layer, the actual SNMP requests to retrieve the variables are carried out. In the processing layer, the retrieved variables are added to the appropriate entity records. There is also an optional filter on the mediation layer.
The following code segment is an overview of the structure
of the mediation and processing sections of the discovery agent definition
file.
DiscoAgentMediationFilter
{
// Optional section containing filters for the mediation layer.
}
DiscoAgentMediationLayer
{
// Contains the SNMP Get and GetNext requests to be performed.
// In addition, an ICMP trace can be performed and SNMP access
// parameters can be retrieved in the mediation layer.
}
DiscoAgentProcessingLayer
{
// Adds the retrieved variables to the appropriate entity
// record(s).
}