From WinAgents Software Group:
WinAgents MIB Browser is a network administrator's main tool for configuring devices with the help of the SNMP protocol (Simple Network Management Protocol). WinAgents MIB Browser allows you to read and modify the values of SNMP variables, as well as to monitor changes in these variables over time.
The main program features:
Convenient user interface
Supporting SNMP versions 1, 2 and 3.
Smart mechanism of caching the MIB tree allowing you to considerably reduce the amount of both memory used and data transmitted over the network.
Multifunctional editor of MIB modules supporting syntax highlighting.
Bookmarks in the MIB tree making it easier to find SNMP variables.
The mechanism of polling SNMP variables at certain intervals allowing you to monitor changes in the values of variables over time.