A simple, free, cross-platform SNMP trap viewer

I’m organizing a workshop to familiarize system administrators with the TIBCO product suite. Since their job is to keep applications running, their chief concern is how to monitor these new products. In their current environment, they use fairly standard SNMP monitoring tools to keep an eye on things. Whenever an error occurs (indicated by receiving an SNMP trap) the admins use application-specific tools to find the cause of the fault. As part of the workshop, I want to see how the TIBCO stuff integrates with these monitoring tools. So, I need to get TIBCO to send out SNMP traps.