Cisco Support Community
Community Member

Nexus 7K input discards

Hello Team, 


I seeing a number of discards on my Nexus 7K . Does anyone know how I can find out the packets that  are being discarded?

Please see the output below. 




Ethernet3/48 is up

admin state is up, Dedicated Interface

  Belongs to Po1

  Hardware: 1000/10000 Ethernet, address: 

  Description: Link to Telecity

  MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec

  reliability 255/255, txload 1/255, rxload 2/255

  Encapsulation ARPA, medium is broadcast

  Port mode is trunk

  full-duplex, 1000 Mb/s, media type is 1G

  Beacon is turned off

  Auto-Negotiation is turned on

  Input flow-control is off, output flow-control is off

  Auto-mdix is turned on

  Rate mode is dedicated

  Switchport monitor is off

  EtherType is 0x8100

  EEE (efficient-ethernet) : n/a

  Last link flapped 10week(s) 6day(s)

  Last clearing of "show interface" counters never

  5 interface resets

  30 seconds input rate 10881600 bits/sec, 2477 packets/sec

  30 seconds output rate 2799184 bits/sec, 1433 packets/sec

  Load-Interval #2: 5 minute (300 seconds)

    input rate 19.29 Mbps, 3.28 Kpps; output rate 4.57 Mbps, 1.74 Kpps


    60230024284 unicast packets  76060691 multicast packets  44682833 broadcast packets

    60350739048 input packets  66908411765118 bytes

    0 jumbo packets  0 storm suppression packets

    0 runts  0 giants  0 CRC  0 no buffer

    0 input error  0 short frame  0 overrun   0 underrun  0 ignored

    0 watchdog  0 bad etype drop  0 bad proto drop  0 if down drop

    0 input with dribble  332770 input discard

    0 Rx pause


    66422484197 unicast packets  64002660 multicast packets  21560447 broadcast packets

    66508013619 output packets  65774916044117 bytes

    0 jumbo packets

    0 output error  0 collision  0 deferred  0 late collision

    0 lost carrier  0 no carrier  0 babble  288477 output discard

    0 Tx pause



Cisco Employee

Hi, Please check output of



Please check output of command " show hardware internal interface indiscard-stats front-port x "


Support for Granular Input Packet Discards Information

Beginning with Cisco NX-OS Release 5.0(3)U2(1), you can get a more detailed information on what specific condition led to an input discard on a given interface. Use the show hardware internal interface indiscard-stats front-port x command to determine the condition that could be potentially responsible for the input discards that are seen on port eth1/x. The switch output shows the discards for IPv4, STP, input policy, ACL specific discard, generic receive drop, and VLAN related discards.

Use the show hardware internal interface indiscard-stats front-port x command to determine the condition that could be potentially responsible for the input discards.

Community Member

Here are the versions that I

Here are the versions that I am using below but that command is not active on my 7K.



  BIOS:      version 2.12.0
  kickstart: version 6.1(4a)
  system:    version 6.1(4a)
  BIOS compile time:       05/29/2013
  kickstart image file is: bootflash:///n7000-s2-kickstart.6.1.4a.bin
  kickstart compile time:  12/25/2020 12:00:00 [09/26/2013 07:22:01]
  system image file is:    bootflash:///n7000-s2-dk9.6.1.4a.bin
  system compile time:     7/8/2013 19:00:00 [09/26/2013 09:08:40]

  cisco Nexus7000 C7004 (4 Slot) Chassis ("Supervisor module-2")
  Intel(R) Xeon(R) CPU         with 12225160 kB of memory.


Cisco Employee

Hi, Sorry, by mistake i



Sorry, by mistake i provided command for Nexus 3000, while you have Nexus 7000. Can you please provide running config for interface where input discard is increasing and other side where it is connected. Sometimes it happens due to vlan mismatch, you are receiving traffic with vlan tagged which is not passed on received interface. 


Below commands may also help you


show interface ethernet <x/x>
show interface ethernet <x/x> counters detailed all
show hardware internal errors module <slot No of the vpc member port>
show hardware internal statistics pktflow dropped
show interface ethernet <x/x> counters errors



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