Bandwidth Graphing Options with OpManager

Bandwidth Graphing Options with OpManager

If Cisco devices (in my case, older Cisco switches) don't support Netflow, does OpManager offer any kind of bandwidth graphing?  I see the "Top 10 Interface Traffic" reports, but I'm looking more for a graph to look at usage over a period of time.  Something like PRTG / MRTG / Cacti....

Didn't know if OpManager can go this far, or if Netflow is a requirement to get that level of granularity?  Any assistance is appreciated.

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