We have a netapp storage on our Nexus and we are seeing alot of pks discarded on ingreess. I know that the Nexus does ingress queing so this seems to point to congestion on an egress port. How can I figure out what port is causing the problem or has the congestion?

I looked on Ciscos website but I can't find a good troubleshooting docutment.

qos-group 4
    q-size: 29760, HW MTU: 9216 (9216 configured)
    drop-type: drop, xon: 0, xoff: 29760
    Statistics:
        Pkts received over the port             : 5589330309
        Ucast pkts sent to the cross-bar        : 5504968963
        Mcast pkts sent to the cross-bar        : 86720
        Ucast pkts received from the cross-bar  : 0
        Pkts sent to the port                   : 162325
        Pkts discarded on ingress               : 72274627
        Per-priority-pause status               : Rx (Inactive), Tx (Inactive)