SNMP monitoring checks

Generic SNMP function

GFI Network Server Monitor can check local or remote server connections by challenging a specific port. GFI Network Server Monitor carries out this function by connecting to the target computer, send it a sequence of bytes and analyze the response received.

Screenshot 50 - SNMP check parameters dialog

The SNMP (Simple Network Management Protocol) GET message allows the Network Monitor Engine to request information about a specific variable on a remote computer or device. Upon receiving a GET message, the agent will issue GFI Network Server Monitor Engine a GET-RESPONSE message containing either the information requested or an error indicating why the request cannot be processed.

An SNMP function requires the following parameters:

Community String - Specify the SNMP community string to be used, by default: `public'.
OID (Object ID) - Specify the Object ID. This is a unique identification tag, which could be either an alphanumeric name or the physical name (long numeric tag), used to distinguish each variable in SNMP messages.
OID Data type - Select the data type to be used from the available dropdown list. The following are valid/supported data types: Bit Stream, Counter, Integer, IP address, Object Identifier, Opaque String, String, Time Marks and Unsigned Integer.
OID Data must be - Specify an OID data value and select the operand to be used to compare the actual SNMP value against the `IOD Data Value' specified. Supported operands include Equal To, Not Equal To, Less Than, Less or Equal To, Greater Than, Greater or Equal To.