[c-nsp] Service Policy per-class bandwidth graphing -- any tools available?

[Eric Cables]

We have a number of large MQC policies, and I'd like to graph the
throughput of each class, allowing us to pro-actively identify any
classes that may be exceeding their allocated bandwidth.

Are there any tools available that allow service policy bandwidth
graphing, on a per-class basis (maybe a Cacti addon)?

-- Eric Cables