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OpenFlow 1.3 and up all define meters within the OpenFlow protocol; however, they are an optional feature. At present, only ofsoftswitch and various hardware switch vendors support meters. Note that OVS is not included and does not support meters currently only the userspace datapath implements meters, as of v2.48.90.
ofsoftswitch is a software OpenFlow switch implementation, similar to OVS. It can be dowloaded and installed according to these instructions.
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