5 Replies Latest reply on Dec 10, 2013 2:10 AM by pfiore

    NPM showing an enormous number of discards in Cisco 6500

    pfiore

      Orion NPM shows a huge number of transmit discards (over 60 millions) on an interface of a Cisco 6313.

       

      I don't see anything strange in show int g11/14:

      GigabitEthernet11/14 is up, line protocol is up (connected)

        Hardware is C6k 1000Mb 802.3, address is 0011.211c.301b (bia 0011.211c.301b)

        Description: Fw-5000-02

        MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,

           reliability 255/255, txload 3/255, rxload 11/255

        Encapsulation ARPA, loopback not set

        Keepalive set (10 sec)

        Full-duplex, 1000Mb/s, media type is 10/100/1000BaseT

        input flow-control is off, output flow-control is on

        Clock mode is auto

        ARP type: ARPA, ARP Timeout 04:00:00

        Last input never, output 00:00:17, output hang never

        Last clearing of "show interface" counters 00:43:13

        Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 77

        Queueing strategy: fifo

        Output queue: 0/40 (size/max)

        5 minute input rate 45829000 bits/sec, 7523 packets/sec

        5 minute output rate 13395000 bits/sec, 5305 packets/sec

           15255379 packets input, 9466545932 bytes, 0 no buffer

           Received 296 broadcasts (0 multicasts)

           0 runts, 0 giants, 0 throttles

           0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored

           0 watchdog, 0 multicast, 0 pause input

           0 input packets with dribble condition detected

           11741462 packets output, 3884824147 bytes, 0 underruns

           0 output errors, 0 collisions, 0 interface resets

           0 babbles, 0 late collision, 0 deferred

           0 lost carrier, 0 no carrier, 58 PAUSE output

           0 output buffer failures, 0 output buffers swapped out

       

      The following is the output of show counters interface g11/14

      64 bit counters:

      0.                      rxHCTotalPkts = 89952950644

      1.                      txHCTotalPkts = 81999325361

      2.                    rxHCUnicastPkts = 89947522017

      3.                    txHCUnicastPkts = 81935978120

      4.                  rxHCMulticastPkts = 0

      5.                  txHCMulticastPkts = 50697567

      6.                  rxHCBroadcastPkts = 5428627

      7.                  txHCBroadcastPkts = 12649674

      8.                         rxHCOctets = 68223222934531

      9.                         txHCOctets = 61998507542116

      10.                 rxTxHCPkts64Octets = 40064365356

      11.            rxTxHCPkts65to127Octets = 24067569028

      12.           rxTxHCPkts128to255Octets = 12930592680

      13.           rxTxHCPkts256to511Octets = 7421299421

      14.          rxTxHCpkts512to1023Octets = 8407135252

      15.         rxTxHCpkts1024to1518Octets = 79061314292

      16.                    txHCTrunkFrames = 0

      17.                    rxHCTrunkFrames = 0

      18.                     rxHCDropEvents = 0

       

       

      32 bit counters:

      0.                   rxCRCAlignErrors = 0

      1.                   rxUndersizedPkts = 0

      2.                    rxOversizedPkts = 0

      3.                     rxFragmentPkts = 0

      4.                          rxJabbers = 0

      5.                       txCollisions = 0

      6.                         ifInErrors = 0

      7.                        ifOutErrors = 0

      8.                       ifInDiscards = 0

      9.                  ifInUnknownProtos = 0

      10.                      ifOutDiscards = 0

      11.            txDelayExceededDiscards = 0

      12.                              txCRC = 0

      13.                         linkChange = 21

      14.                   wrongEncapFrames = 0

       

      And I can see some discards by typing show int count errors module 11

      Port                     Align-Err             FCS-Err            Xmit-Err             Rcv-Err           UnderSize         OutDiscards

      Gi11/1                           0                   0                   0                   0                   0                   0

      Gi11/2                           0                   0                   0                   0                   0                   0

      Gi11/3                           0                   0                   0                   0                   0                   0

      Gi11/4                           0                   0                   0                   0                   0                   0

      Gi11/5                           0                   0                   0                   0                   0                   0

      Gi11/6                           0                   0                   0                   0                   0                   0

      Gi11/7                           0                   0                   0                   0                   0                   0

      Gi11/8                           0                   0                   0                   0                   0                   0

      Gi11/9                           0                   0                   0                   0                   0                   0

      Gi11/10                          0                   0                   0                   0                   0                  77

      Gi11/11                          0                   0                   0                   0                   0                  77

      Gi11/12                          0                   0                   0                   0                   0                   0

      Gi11/13                          0                   0                   0                   0                   0                  77

      Gi11/14                          0                   0                   0                   0                   0                  77

      Gi11/15                          0                   0                   0                   0                   0                  77

      Gi11/16                          0                   0                   0                   0                   0                  77

       

      Anyone can help?