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  1. Choose Monitoring > Metrics from the side navigation panel.
    Metrics screen with flatline graphs and arrows to key elements
  2. You can select an individual device and a particular channel.
    • The devId is represented by the RxD's MAC address in the drop-down. You can obtain the MAC address for an RxD by viewing the details for an RxD in RxD inventory screens.
    • The chID is represented by the RF Channel Index value in the drop-down. You can obtain this value in the Channel Details tab for an RxD.
  3. VTM displays the input DEPI Session and RF Channel Output metrics. You can select each metric to isolate the graphing display for a particular metric:
    • l2tpDiscards
    • l2tpOOS
    • droppedIngressFrames
    • chDiscard
    • chError
    • droppedEgressPackets