3 Replies Latest reply on Dec 30, 2013 11:36 AM by Network_Guru

    Nexus 5596 queue drops - OID

    Network_Guru

      I've scoured the 'net for this but have had no luck.

      Can someone provide the OIDs for the following queues on a Nexus 5596 running Version 5.2(1)N1(3) ?

       

      --------------

      show queuing interface

      --------------

      Ethernet1/1 queuing information:

        TX Queuing

          qos-group  sched-type  oper-bandwidth

              0       WRR            100

              1       WRR              0

              2       WRR              0

              3       WRR              0

              4       WRR              0

              5       WRR              0

        RX Queuing

          qos-group 0

          q-size: 29760, HW MTU: 9216 (9216 configured)

          drop-type: drop, xon: 0, xoff: 29760

          Statistics:

              Pkts received over the port             : 20547226

              Ucast pkts sent to the cross-bar        : 20547030

              Mcast pkts sent to the cross-bar        : 195

              Ucast pkts received from the cross-bar  : 738294

              Pkts sent to the port                   : 738805

              Pkts discarded on ingress               : 1

              Per-priority-pause status               : Rx (Inactive), Tx (Inactive)

          qos-group 1

          q-size: 29760, HW MTU: 9216 (9216 configured)

          drop-type: drop, xon: 0, xoff: 29760

          Statistics:

              Pkts received over the port             : 0

              Ucast pkts sent to the cross-bar        : 0

              Mcast pkts sent to the cross-bar        : 0

              Ucast pkts received from the cross-bar  : 0

              Pkts sent to the port                   : 0

              Pkts discarded on ingress               : 0

              Per-priority-pause status               : Rx (Inactive), Tx (Inactive)

          qos-group 2

          q-size: 29760, HW MTU: 9216 (9216 configured)

          drop-type: drop, xon: 0, xoff: 29760

          Statistics:

              Pkts received over the port             : 0

              Ucast pkts sent to the cross-bar        : 0

              Mcast pkts sent to the cross-bar        : 0

              Ucast pkts received from the cross-bar  : 0

              Pkts sent to the port                   : 0

              Pkts discarded on ingress               : 0

              Per-priority-pause status               : Rx (Inactive), Tx (Inactive)

          qos-group 3

          q-size: 90240, HW MTU: 9216 (9216 configured)

          drop-type: no-drop, xon: 17280, xoff: 37120

          Statistics:

              Pkts received over the port             : 0

              Ucast pkts sent to the cross-bar        : 0

              Mcast pkts sent to the cross-bar        : 0

              Ucast pkts received from the cross-bar  : 0

              Pkts sent to the port                   : 0

              Pkts discarded on ingress               : 0

              Per-priority-pause status               : Rx (Inactive), Tx (Inactive)

          qos-group 4

          q-size: 29760, HW MTU: 9216 (9216 configured)

          drop-type: drop, xon: 0, xoff: 29760

          Statistics:

              Pkts received over the port             : 0

              Ucast pkts sent to the cross-bar        : 0

              Mcast pkts sent to the cross-bar        : 0

              Ucast pkts received from the cross-bar  : 338950999

              Pkts sent to the port                   : 338954989

              Pkts discarded on ingress               : 0

              Per-priority-pause status               : Rx (Inactive), Tx (Inactive)

          qos-group 5

          q-size: 112000, HW MTU: 9216 (9216 configured)

          drop-type: drop, xon: 0, xoff: 112000

          Statistics:

              Pkts received over the port             : 0

              Ucast pkts sent to the cross-bar        : 0

              Mcast pkts sent to the cross-bar        : 0

              Ucast pkts received from the cross-bar  : 0

              Pkts sent to the port                   : 0

              Pkts discarded on ingress               : 0

              Per-priority-pause status               : Rx (Inactive), Tx (Inactive)

        Total Multicast crossbar statistics:

          Mcast pkts received from the cross-bar      : 4245

       

      Currently I am running scripts with NCM to collect this info to a file every hour.

      Then using a Perl script to massage the data.

        • Re: Nexus 5596 queue drops - OID
          Network_Guru

          Wow, 440 views and no one else has seen this issue?

          We are still fighting this problem with no resolution in sight.

          • Re: Nexus 5596 queue drops - OID
            spruance

            Unicast discards are marked and entered into ifInDiscards/ifOutDiscards as normal, but that's inclusive of all drops not per class.

            Multicast discards are only accessible via cli commands such as "show queueing int" or  "sh platform fwm info pif all". They are not recorded in ifIn/OutDiscards at all!

             

            In 5.x code, discards by QOS level are not exposed in SNMP at all in the earlier code revs to my knowledge.

             

            In NX-OS 6.2.x, they made significant improvements in available info for operations. On our NX7000s, many of the counters from "show queueing int" and various COS based are now accessable in private mibs (walk CISCO-CLASS-BASED-QOS-MIB, and you find all your class maps, etc).

             

            I don't work for Cisco, so I do not know if this level will drop for the 55xx or if the above mib is in 6.0.x for the 55xx-- we're still running 5.x on our 5548s.

             

            good luck!

            • Re: Nexus 5596 queue drops - OID
              Network_Guru

              Thanks spruance

               

              In communications with Cisco engineers, we were told that the QOS queue drops are collected on the individual interface ASICs, which are not currently pollable with SNMP in V5.2.x

              Perhaps we will upgrade a Nexus 55xx in the lab to 6.2.x just to see what private mibs are now available.