| 0 | Transmit | 20 | 0 | VT_RATE_COUNTER | Bps | This meter reports the bandwidth rate, in bytes per second, for traffic transmitted with this MAC address as the source. |
| 1 | Receive | 20 | 0 | VT_RATE_COUNTER | Bps | This meter reports the bandwidth rate, in bytes per second, for traffic received with this MAC address as the destination. |
| 2 | Unused Cardinality counter | 20 | 20 | VT_GAUGE | Uniques | This is a reserved gauge slot intended for a unique value cardinality metric. It is not currently mapped to any field for this counter group, so it remains an inactive placeholder with no data populated. |
| 3 | Unused Cardinality counter | 20 | 20 | VT_GAUGE | Uniques | This is a second reserved cardinality gauge slot with the same status as meter 2. It is inactive and not instrumented for this group. |