The following properties are related to rings.
rx-rings-available – Number of Rx rings you can allocate to hardware-based clients on the physical datalink.
rx-rings – Number of Rx rings exclusively used by the datalink.
tx-rings-available – Number of Tx rings you can allocate to hardware-based clients on the physical datalink.
tx-rings – Number of Tx rings exclusively used by the datalink.
ring-group – indicates whether the driver supports assigning of dedicated ring groups for the NICs.