1. A computer-implemented method, comprising: receiving, from a networking device at a network management computer, a Simple Network Management Protocol (SNMP) notification comprising a columnar varbind that includes a plurality of varbind indices and corresponding index values; using event processing logic at the network management computer, decoding one or more varbind indices, from the plurality of varbind indices and corresponding index values, into corresponding one or more index textual names based on compiled Management Information Base (MIB) data that comprises information from one or more MIB definition files; using the event processing logic, comparing the one or more index textual names to one or more substitution variables in event descriptions; using the event processing logic, based on comparing the one or more index textual names to the one or more substitution variables in the event descriptions, replacing a substitution variable, of the one or more substitution variables, with a varbind index value corresponding to a varbind index, of the one or more varbind indices, which corresponds to an index textual name of the corresponding one or more index textual names; using the event processing logic, constructing a message based on the event description and the varbind index value that replaced the substitution variable in the event description.