Sh int counters errors

sh int counters errors

reliability 255/255: When the input and output errors increase, they affect the reliability counter. This indicates how likely it is that a packet can be. Cisco7613#sh int gi 2/1 Last clearing of "show interface" counters never 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored. The Reports > Diagnostics > Interface Counters report summarizes the statistics for the Specifies the total number of packets, packets discarded, errors. sh int counters errors

arista1-1(config)#show interfaces counters errors

Port               FCS    Align   Symbol       Rx    Runts   Giants       Tx

Et1                  0        0        0        0        0        0        0

Et2                  0        0        0        0        0        0        0

Et3                  2        0        0        4        0        0        0

Et4                  0        0        0        0        0        0        0

Et5                  0        0        0        0        0        0        0

Et6                  0        0        0        0        0        0        0

Et7                  0        0        0        0        0        0        0

Et8                  0        0        0        0        0        0        0

Et9                  0        0        0        0        0        0        0

Et10                 0        0        0        0        0        0        0

Et11                 0        0        0        0        0        0        0

Et12                 0        0        0        0        0        0        0

Et13                 0        0        0        0        0        0        0

Et14                 0        0        0        0        0        0        0

Et15                 0        0        0        0        0        0        0

Et16                 0        0        0        0        0        0        0

Et17                 0        0        0        0        0        0        0

Et18                 0        0        0        0        0        0        0

Et19                 0        0        0        0        0        0        0

Et20                 0        0        0        0        0        0        0

Et21                 0        0        0        0        0        0        0

Et22                 0        0        0        0        0        0        0

Et23                 0        0        0        0        0        0        0

Et24                 0        0        0        0        0        0        0

Et25                 0        0        0        0        0        0        0

Et26                 0        0        0        0        0        0        0

Et27                 0        0        0        0        0        0        0

Et28                 0        0        0        0        0        0        0

Et29                 0        0        0        0        0        0        0

Et30                 0        0        0        0        0        0        0

Et31                 1        0        0        2        0        0        0

Et32                 0        0        0        0        0        0        0

Et33                 0        0        0        0        0        0        0

Et34                 2        0        0        4        0        0        0

Et35                 0        0        0        0        0        0        0

Et36                 1        0        0        2        0        0        0

Et37                 0        0        0        0        0        0        0

Et38                 0        0        0        0        0        0        0

Et39                 0        0        0        0        0        0        0

Et40                 0        0        0        0        0        0        0

Et41                 0        0        0        0        0        0        0

Et42                 2        0        0        4        0        0        0

Et43                 0        0        0        0        0        0        0

Et44               712        0        0     1724        0      300        0

Et45                 0        0        0        0        0        0        0

Et46                 2        0        0        4        0        0        0

Et47                 0        0        0        0        0        0        0

Et48                 1        0        0        2        0        0        0

Et49                 0        0        0        0        0        0        0

Et50                 0        0        0        0        0        0        0

Et51                 0        0        0        0        0        0        0

Et52                 0        0        0        0        0        0        0

Ma1                  0        0        0        0        0        0        0

Difference between "receive errors" and "receive incoming errors" under hardware interface counters

Receive error:

Receive Errors show the count of any receive errors received on the physical (hardware) interface. They are primarily L2-L4 parsing/header errors and although the counter mentions "hardware," they are predominantly logical errors (CRC, framing or other hardware-related errors are NOT counted here).

Most common types of events that cause these errors are

  • incorrect length of VLAN tag
  • unexpected VLAN tag
  • unsupported L2 protocol
  • incorrect IP checksum
  • TCP/UDP packet checksum error
  • TCP/UDP port 0
  • Invalid TCP flag, etc.

Very often, a constant increase of this counter is caused by STP/LLDP/UDLD frames arriving on a L3 firewall port (these protocols are not supported on L3 ports and are legitimately dropped and counted as "Receive errors").


Receive incoming error:

This sums up two different types of error collected from interface statistics:

  1. mac_rcv_error: MAC address of packet received doesn't match ingress interface MAC address.
  2. rcv_fifo_overrun: Overruns occur when the buffer of the interface is full, sh int counters errors, but it is still trying to handle incoming traffic. The port has exceeded its buffer. This is usually due to bursty traffic more than anything else. 
NameDescriptionx_MAC_DROP_RXNumber of received frames dropped for any reason. Please note that as shown in Diagram 1, sh int counters errors, the bit pattern resulting in a dropped frame counted by the MAC would also have been forwarded to the egress interface using the bypass route. Counter class: nonex_MAC_DROP_RX_ALIGN_ERR_FRAMESNumber of filtered frames with error at the MAC XGMII termination point. Counter class: nonex_MAC_DROP_RX_CRC_ERR_FRAMESNumber of frames filtered with CRC error.Counter class: nonex_MAC_RX_1024B_TO_1518B_FRAMESNumber of good or bad frames that are between 1024 and 1518 bytes long, sh int counters errors. Corresponds to etherStatsPkts1024to1518Octets of RFC2819.Counter class: RMONx_MAC_RX_128B_TO_255B_FRAMESNumber of good or bad frames that are between 128 and 255 bytes long. Corresponds to etherStatsPkts128to255Octets of RFC2819.Counter class: RMONx_MAC_RX_1519B_TO_1522B_FRAMESNumber of good or bad frames that are between 1519 and 1522 bytes long.Counter class: nonex_MAC_RX_1519B_TO_MTUB_FRAMESNumber of good or bad frames that are between 1519 and the maximum programmed length (MTUpdv2). Counter class: RMONx_MAC_RX_1523B_TO_1548B_FRAMESNumber of good or bad frames that are between 1523 and 1548 bytes long.Counter class: nonex_MAC_RX_1549B_TO_2000B_FRAMESNumber of good or bad frames that are between 1549 and 2000 bytes long.Counter class: nonex_MAC_RX_1549B_TO_MTUB_FRAMESNumber of good or bad frames that are between 1549 and the maximum programmed length (MTUpdv2). Counter class: RMONsh int counters errors colspan="1">x_MAC_RX_2001B_TO_2500B_FRAMESNumber of good or bad frames that are between 2001 and 2500 bytes long.Counter class: nonex_MAC_RX_2501B_TO_MTUB_FRAMESNumber of good or bad frames that are between 2501 and the maximum programmed sh int counters errors (MTUpdv2). Counter class: RMONx_MAC_RX_256B_TO_511B_FRAMESNumber of good or bad frames that are between 256 and 511 bytes long. Corresponds to etherStatsPkts256to511Octets of RFC2819.Counter class: RMONx_MAC_RX_512B_TO_1023B_FRAMESNumber of good or bad frames that are between 512 and 1023 bytes long, sh int counters errors. Corresponds to etherStatsPkts512to1023Octets of RFC2819.Counter class: RMONx_MAC_RX_64B_FRAMESNumber of good or bad frames that are exactly 64 bytes long. Corresponds to etherStatsPkts64Octets of RFC2819.Counter class: RMONx_MAC_RX_65B_TO_127B_FRAMESNumber of good or bad frames that are between 65 and 127 bytes long. Corresponds to etherStatsPkts65to127Octets of RFC2819.Counter class: RMONx_MAC_RX_ALIGN_ERR_FRAMESNumber of frames that are received with error at the MAC XGMII termination point.Counter class: IEEEx_MAC_RX_BCAST_FRAMESNumber of valid received Broadcast frames. Corresponds to ifInBroadcastPkts of RFC2665.Counter class: MIBx_MAC_RX_CRC_ERR_FRAMESNumber of frames received with an CRC error. This does not include frames that are marked too-long or too-short. Corresponds to aFrameCheckSequenceErrors of IEEE802.3.Counter class: IEEEx_MAC_RX_ERR_FRAMESNumber of frames received with error:
  • CRC error
  • Alignment error
  • Length error
Counter class: MIBx_MAC_RX_ERR_FRAMES_VLAN_UP0Same as x_MAC_RX_ERR_FRAMES but counted on a per user-priority basis: User-priority 0.x_MAC_RX_ERR_FRAMES_VLAN_UP1Same as x_MAC_RX_ERR_FRAMES but counted on a per user-priority basis: User-priority 1.x_MAC_RX_ERR_FRAMES_VLAN_UP2Same as x_MAC_RX_ERR_FRAMES but counted on a per sh int counters errors basis: User-priority 2.x_MAC_RX_ERR_FRAMES_VLAN_UP3Same as x_MAC_RX_ERR_FRAMES but counted on a per user-priority basis: User-priority 3.x_MAC_RX_ERR_FRAMES_VLAN_UP4Same as x_MAC_RX_ERR_FRAMES but counted on a per user-priority basis: User-priority 4.x_MAC_RX_ERR_FRAMES_VLAN_UP5Same as x_MAC_RX_ERR_FRAMES but counted on a per user-priority basis: User-priority 5.x_MAC_RX_ERR_FRAMES_VLAN_UP6Same as x_MAC_RX_ERR_FRAMES but counted on a per user-priority basis: User-priority 6.x_MAC_RX_ERR_FRAMES_VLAN_UP7Same as x_MAC_RX_ERR_FRAMES but counted on a per user-priority basis: User-priority 7.x_MAC_RX_FRAMESNumber of good or bad frames received, sh int counters errors. Corresponds to etherStatsPkts of RFC2819Counter class; RMONx_MAC_RX_FRAMES_VLAN_UP0Same as x_MAC_RX_FRAMES but counted on a per user-priority basis: User-priority gprs error 616 rowspan="1" colspan="1">x_MAC_RX_FRAMES_VLAN_UP1Same as x_MAC_RX_FRAMES but counted on a per user-priority basis: User-priority 1.x_MAC_RX_FRAMES_VLAN_UP2Same as x_MAC_RX_FRAMES but counted on a per user-priority basis: User-priority 2.x_MAC_RX_FRAMES_VLAN_UP3Same as x_MAC_RX_FRAMES but counted on a per user-priority basis: User-priority 3.x_MAC_RX_FRAMES_VLAN_UP4Same as sh int counters errors but counted on a per user-priority basis: User-priority 4.x_MAC_RX_FRAMES_VLAN_UP5Same as x_MAC_RX_FRAMES but counted on a per user-priority basis: User-priority 5.x_MAC_RX_FRAMES_VLAN_UP6Same as x_MAC_RX_FRAMES but counted on a per user-priority basis: User-priority 6.x_MAC_RX_FRAMES_VLAN_UP7Same as x_MAC_RX_FRAMES but counted on a per user-priority basis: User-priority 7.x_MAC_RX_GIANT_FRAMESNumber of frames received that exceed the programmed maximum length and have good CRC. Corresponds to etherStatsOversizePkts of RFC2819.Counter class: RMONx_MAC_RX_GIANT_FRAMES_VLAN_UP0Same as x_MAC_RX_GIANT_FRAMES but counted on a per user-priority basis: User-priority 0.x_MAC_RX_GIANT_FRAMES_VLAN_UP1Same as x_MAC_RX_GIANT_FRAMES but counted on a per user-priority basis: User-priority 1.x_MAC_RX_GIANT_FRAMES_VLAN_UP2Same as x_MAC_RX_GIANT_FRAMES but counted on a per user-priority basis: User-priority 2.x_MAC_RX_GIANT_FRAMES_VLAN_UP3Same as x_MAC_RX_GIANT_FRAMES but counted on a per user-priority basis: User-priority 3.x_MAC_RX_GIANT_FRAMES_VLAN_UP4Same as x_MAC_RX_GIANT_FRAMES but counted on a per user-priority basis: User-priority 4.x_MAC_RX_GIANT_FRAMES_VLAN_UP5Same as x_MAC_RX_GIANT_FRAMES but counted on a per user-priority basis: User-priority 5.x_MAC_RX_GIANT_FRAMES_VLAN_UP6Same as x_MAC_RX_GIANT_FRAMES but counted on a per user-priority basis: User-priority 6.x_MAC_RX_GIANT_FRAMES_VLAN_UP7Same as x_MAC_RX_GIANT_FRAMES but counted on a per user-priority basis: User-priority 7.x_MAC_RX_GOOD_FRAMESNumber of frames received without error (including Pause frames). Corresponds to aFramesReceivedOK of IEEE802.3.Counter class: IEEEx_MAC_RX_JABBER_FRAMESsh int counters errors of frames received that exceed the programmed maximum length and have bad CRC. Corresponds to etherStatsJabbers of RFC2819.Counter stats: RMONx_MAC_RX_MCAST_FRAMESNumber of valid Multicast frames. Corresponds to ifInMulticastPkts of RFC2665.Counter class: MIBx_MAC_RX_PAUSE_FRAMESNumber of received Pause frames. Corresponds to aPAUSEMACCtrlFramesReceived of IEEE802.3.Counter class: IEEEx_MAC_RX_RUNT_FRAMESNumber of frames received that are shorter than 64 Bytes and have bad CRC. Corresponds to etherStatsFragments of RFC2819.Counter class: RMONx_MAC_RX_SHORT_FRAMESNumber of frames received that are shorter than 64 Bytes and have good CRC. This does not include frames that are too-long or alignmentError. Corresponds to etherStatsUndersizePkts of RFC2819. Counter class: RMONx_MAC_RX_UCAST_FRAMESNumber of valid received Unicast frames. Corresponds to ifInUcastPkts of RFC2665. Counter class: RMONx_MAC_RX_UNDERSIZE_FRAMESTotal number of frames that are shorter than 64 Bytes. Corresponds to etherStatsFragments and etherStatsUndersizePkts of RFC2819.Counter class: RMONx_MAC_BAD_OCTETSSum of payload and padded octets received with error.Counter class: nonex_MAC_GOOD_OCTETSSum of payload and padding octets and frames received without error. Corresponds to aOctetsReceivedOK of IEEE802.3.Counter class: IEEEx_MAC_RX_OCTETSNumber of bytes received in good or bad frames. Corresponds to etherStatsOctets of RFC2819.Counter sh int counters errors RMONx_MAC_RX_OCTETS_VLAN_UP0Same as x_MAC_RX_OCTETS but counted on a per user-priority basis: User-priority 0.x_MAC_RX_OCTETS_VLAN_UP1Same as x_MAC_RX_OCTETS but counted on a per user-priority basis: User-priority 1.x_MAC_RX_OCTETS_VLAN_UP2Same as x_MAC_RX_OCTETS but counted on a per user-priority basis: User-priority 2.x_MAC_RX_OCTETS_VLAN_UP3Same as x_MAC_RX_OCTETS but counted on a per user-priority basis: User-priority 3.x_MAC_RX_OCTETS_VLAN_UP4Same as x_MAC_RX_OCTETS but counted on a per user-priority basis: User-priority 4.x_MAC_RX_OCTETS_VLAN_UP5Same as x_MAC_RX_OCTETS but counted on a per user-priority basis: User-priority 5.x_MAC_RX_OCTETS_VLAN_UP6Same as x_MAC_RX_OCTETS but counted on a per user-priority basis: User-priority 6.x_MAC_RX_OCTETS_VLAN_UP7Same as x_MAC_RX_OCTETS but counted on a per user-priority basis: User-priority 7.Notes: 
  1. x = LINE or HOST side of the receive MAC
  2. MTUpdv are per direction VLAN User-Priority MTU configuration registers (XGMAC_x_RX_MAXLEN_VLAN_UP0-7)

show interface counters

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show interface counters

Description

This command shows the Ethernet interface packet counters for the IAP.

Usage Guidelines

Use this command to view table of L2 interface counters.

Example

The following example shows the partial output of show interface counters command:

bond0 is up, line protocol is up

Hardware is Gigabit Ethernet, address is d8:c7:c8:c4:42:98

Speed 1000Mb/s, duplex full

Received packets 9441

Received bytes 1134064

Receive dropped 0

Receive errors sh int counters errors 0

Receive missed errors 0

Receive overrun errors 0

Receive frame errors 0

Receive CRC errors sh int counters errors 0

Receive length errors 0

Transmitted packets 16435

Transmitted bytes 841278

Transmitted dropped 0

Transmission errors 0

Lost carrier 0

SpeedShows speed of the Sh int counters errors interface.
Received packetsShows total number of received packets.
Received bytesShows the total number of received bytes.
Receive droppedShows total number of packets dropped.
Receive errorsShows total number of errors during packet receive, sh int counters errors.
Receive missed errorsShows total number of errors missed during packet receive.
Receive overrun errorsShows total number of received overrun errors.
Receive frame errorsShows total number of frame errors during packet receive.
Receive CRC errorsShows total number of CRC errors during packet receive.
Receive length errorsShows total length of the error.
Transmitted packetsShows total number of transmitted packets.
Transmitted bytesShows total number of transmitted bytes.
Transmitted droppedShows total number of packets dropped.
Transmission errors Shows total number of errors during packet transmit.
Lost carrierShows total number of lost carriers.

Command History

Aruba Instant 6.2.1.0-3.4

This command is introduced.

Command Information

All platforms

Privileged EXEC mode

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  • The status of an interface on a Cisco switch can be checked using the show interface TYPE exec mode command. Consider the following example:

    SW1#show interfaces fa0/1 FastEthernet0/1 is up, line protocol is up (connected) Hardware is Lance, sh int counters errors, address is 0040.0b21.0b01 (bia 0040.0b21.

    As you can see from the output above, this command gives us plenty of information about the specified interface. Here is a brief description of the most important lines:

    • FastEthernet0/1 is up, sh int counters errors, line protocol is up (connected) – indicates that the interface is in the up and up state
    • Hardware is Lance, address is 0040.0b21.0b01 – Lance indicates the chipset used by the port. The MAC address of the port is also listed
    • BW 100000 Kbit, DLY 1000 usec – the bandwidth and delay of the interface
    • Full-duplex, 100Mb/s – the port operates in the full duplex mode and supports the speed of up to 100Mb/s
    • 956 packets input, 193351 bytes, 0 no buffer – the total number and size of packets received by the port.
    • Received 956 broadcasts – the total number of broadcast packets received by the device.
    • 0 input errors, 0 CRC, 0 frame… – the number of received packets that were received incorrectly.
    • 2357 packets output, 263570 bytes, 0 underruns – he total number and size of packets sent by the port.
    • 0 output errors, 0 collisions – the number of packets that were not sent because of an error and the number of Ethernet collisions.

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    Info is needed by a third party company so i am not sure what they are into. We have Dell  N3048P switch  and "show interfaces counters errors" running fine. But when it comes to 6248P i am getting error message.

    "show interfaces counters ?" gives me additional "ethernet" and "port channel" commands, sh int counters errors. I have a feeling that this model of switch doesn't support this command. 

     

     

    from 6248P 

    392Basement#show interfaces counters ?

    <cr> Press enter to execute the command.
    ethernet Ethernet port.
    port-channel Link Aggregation interface.

    392Basement#show interfaces counters errors
                                      filmy pro terroristov onlain                                ^
    % Invalid input detected at '^' marker.

     

    from N3048P

    power400#show interfaces counters errors

    Align-Err: Alignment errors
    FCS-Err: FCS errors
    Xmit-Err: Total transmit errors
    Rcv-Err: Total packets received with MAC errors
    UnderSize: Fragments/undersize received
    OutDiscard: Total transmit packets discarded

    Port Align-Err FCS-Err Sh int counters errors Rcv-Err UnderSize OutDiscard
    --------- ---------- ---------- ---------- ---------- ---------- ----------
    Gi1/0/1 0 0 0 0 0 0
    Gi1/0/2 0 0 0 0 0 0
    Gi1/0/3 0 0 0 0 0 1532
    Gi1/0/4 0 0 0 0 0 0
    Gi1/0/5 0 0 sh int counters errors 0 0 0
    Gi1/0/6 0 0 0 0 0 0
    Gi1/0/7 0 0 0 0 0 0

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