Usage Graphing per Subnet

[Methsri Wickramarathna <mmethw2003 () gmail com>]

Hi All,
I have a requirement to plot a usage graph per subnet. As an example.

I have a 192.168.1.0/24 subnet divided among 32 customers where each one
will get a /29 [ 192.168.1.0/29 => Customer A ; 192.168.1.8/29 => Customer
B etc... ] ...

 Is there any tool to graph the usage of entire /24 subnet ???

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