display interface extensive

Function

The display interface extensive command displays the running status of and traffic statistics on an interface.

Format

display interface { interface-name | interface-type interface-number } extensive

Parameters

Parameter Description Value
interface-name

Specifies the name of an interface.

The value is a string of 1 to 63 case-sensitive characters, spaces not supported.
interface-type

Specifies the type of an interface. If no interface type is specified, the running status and statistics of all interfaces are displayed.

-
interface-number

Specifies the number of an interface. If an interface type but no interface number is specified, the running status of and statistics on all the interfaces of the specified type are displayed.

The value is a string of 1 to 63 case-sensitive characters, spaces not supported.
extensive

Specifies interface extension information.

-

Views

All views

Default Level

1: Monitoring level

Task Name and Operations

Task Name Operations
interface-mgr read

Usage Guidelines

Usage Scenario

Before you monitor the status of an interface or locate an interface fault, use the display interface command to collect the running status of and statistics on the interface. You can troubleshoot the interface based on the command output.

Perform any of following operations based on the interface status and statistics:

  • If the interface is Down, check whether the link connection is correct or whether interface negotiation succeeds.
  • Interface statistics reflect traffic received and sent. If the interface has a lot of error statistics, check whether the interface is attacked or whether the link quality is stable.
  • If the date and time when the interface last went Up and Down are different from those in the actual situation, contact technical support personnel

    Compared with the display interface brief command, the display interface command provides more interface information to help locate faults.

Precautions

Physical status and link layer protocol status of an interface: Commonly, the link layer protocol status of a working interface is Up.

Last 300 seconds input rate and last 300 seconds output rate of an interface: The existing traffic on the interface needs to be compared with the interface bandwidth. If the existing traffic exceeds 80% of the interface bandwidth, such a situation must be recorded and confirmed. In addition, check whether error statistics about incoming and outgoing traffic are collected on an interface and take actions if statistics about error packets increase.

To view statistics about IPv4 or IPv6 traffic in the inbound and outbound directions on an interface, enable statistics collection in both directions on the interface.

Example

The actual command output varies according to the device. The command output here is only an example.

# Display the status and statistics information about 0/1/0.
<HUAWEI> display interface GigabitEthernet0/1/0 extensive
GigabitEthernet0/1/0 current state : UP (ifindex: 6)
Line protocol current state : DOWN
Link quality grade : GOOD
Description:
Route Port,The Maximum Transmit Unit is 1500
Internet protocol processing : disabled
IP Sending Frames' Format is PKTFMT_ETHNT_2, Hardware address is 00e0-fc12-3457
Last physical up time   : 2019-12-16 11:49:24
Last physical down time : 2019-12-16 11:49:07
Current system time: 2019-12-16 11:55:33
Statistics last cleared:never 
    Last 300 seconds input rate: 93 bits/sec, 0 packets/sec
    Last 300 seconds output rate: 92 bits/sec, 0 packets/sec
    Input peak rate 233 bits/sec, Record time: 2019-12-16 11:50:05
    Output peak rate 229 bits/sec, Record time: 2019-12-16 11:50:05
    Input: 5216 bytes, 16 packets
    Output: 5120 bytes, 16 packets
    Input:
      Unicast: 0 packets, Multicast: 16 packets
      Broadcast: 0 packets, JumboOctets: 0 packets
      CRC: 0 packets, Symbol: 0 packets
      Overrun: 0 packets, InRangeLength: 0 packets
      LongPacket: 0 packets, Jabber: 0 packets, Alignment: 0 packets
      Fragment: 0 packets, Undersized Frame: 0 packets
      RxPause: 0 packets
    Output:
      Unicast: 0 packets, Multicast: 16 packets
      Broadcast: 0 packets, JumboOctets: 0 packets
      Lost: 0 packets, Overflow: 0 packets, Underrun: 0 packets
      System: 0 packets, Overruns: 0 packets
      TxPause: 0 packets
    Last 300 seconds input utility rate:  0.01%
    Last 300 seconds output utility rate: 0.01%
    Ipv4:
      Last 300 seconds input rate: 0 bits/sec, 0 packets/sec
      Last 300 seconds output rate: 0 bits/sec, 0 packets/sec
      Input 0 packets, 0 bytes
        Unicast 0 packets, 0 bytes
        Multicast 0 packets, 0 bytes
        Broadcast 0 packets, 0 bytes
      Output 0 packets, 0 bytes 
        Unicast 0 packets, 0 bytes
        Multicast 0 packets, 0 bytes
        Broadcast 0 packets, 0 bytes
      Input bandwidth utilization : 0.00%
      Output bandwidth utilization : 0.00%
      Frags: 0 need fragment, 0 fragmented, 0 fragment created, 0 could not fragment
    Ipv6:
      Last 300 seconds input rate: 0 bits/sec, 0 packets/sec
      Last 300 seconds output rate: 0 bits/sec, 0 packets/sec
      Input 0 packets, 0 bytes
        Unicast 0 packets, 0 bytes
        Multicast 0 packets, 0 bytes 
      Output 0 packets, 0 bytes
        Unicast 0 packets, 0 bytes
        Multicast 0 packets, 0 bytes
      Input bandwidth utilization : 0.00%
      Output bandwidth utilization : 0.00%
    Mpls:
      Frags: 0 need fragment                                     
                                                                 
    Qos car:
      Ingress discard packets:                          0 packets
      Egress  discard packets:                          0 packets
    Port-queue:
      Egress  discard packets:                          0 packets
    Arp vlan car:
      Ingress discard packets:                          0 packets
    Port packets:
      Receive packets equal to 64 bytes:                0 packets
      Receive packets 65~127 bytes:                     0 packets
      Receive packets 128~255 bytes:                    0 packets
      Receive packets 256~511 bytes:                   16 packets
      Receive packets 512~1023 bytes:                   0 packets
      Receive packets 1024~1518 bytes:                  0 packets
      Receive packets more than 1518 bytes:             0 packets
      Send packets equal to 64 bytes:                  -- packets
      Send packets 65~127 bytes:                       -- packets
      Send packets 128~255 bytes:                      -- packets
      Send packets 256~511 bytes:                      -- packets
      Send packets 512~1023 bytes:                     -- packets
      Send packets 1024~1518 bytes:                    -- packets
      Send packets more than 1518 bytes:               -- packets
Remaining bandwidth deducted from channelized sub-interface: 0 Mbits
# Display the status and statistics of 100GE0/1/0.
<HUAWEI> display interface 100GE0/1/0 extensive
2021-04-29 16:31:51.393 
100GE0/1/0 current state : DOWN(LOS) (ifindex: 2671)
Line protocol current state : DOWN 
Link quality grade : --
Description: 
Route Port,The Maximum Transmit Unit is 1500 
Internet protocol processing : disabled
IP Sending Frames' Format is PKTFMT_ETHNT_2, Hardware address is 2021-0907-1a1c
Factor/Module: CFP2, Standard: 100GE-LR4, FecMode: Disable
The Vendor PN is OM9552L
The Vendor Name is HISILICON
Port BW: 100G, Transceiver max BW: 103.125Gbps, Transceiver Mode: SingleMode
Connector Type: LC, Transmission Distance: 10km
WaveLength: 1295nm 1300nm 1304nm 1309nm
Rx Warning range: [-10.60,  4.50]dBm, Tx Warning range: [-4.30,  4.50]dBm
Rx Power[0]: -40.00dBm, Tx Power[0]: 0.12dBm
Rx Power[1]: -40.00dBm, Tx Power[1]: -0.61dBm
Rx Power[2]: -40.00dBm, Tx Power[2]: -0.97dBm
Rx Power[3]: -40.00dBm, Tx Power[3]: -0.85dBm
Loopback: none, LAN full-duplex mode, Pause Flowcontrol: Receive Enable and Send Enable
Last physical up time   : -
Last physical down time : 2021-04-29 12:26:55
Current system time: 2021-04-29 16:31:51
Statistics last cleared:never
    Last 300 seconds input rate: 0 bits/sec, 0 packets/sec
    Last 300 seconds output rate: 0 bits/sec, 0 packets/sec
    Input peak rate 0 bits/sec, Record time: -
    Output peak rate 0 bits/sec, Record time: -
    Input: 0 bytes, 0 packets
    Output: 0 bytes, 0 packets
    Input:
      Unicast: 0 packets, Multicast: 0 packets
      Broadcast: 0 packets, JumboOctets: 0 packets
      CRC: 0 packets, Symbol: 0 packets
      Overrun: 0 packets, InRangeLength: 0 packets
      LongPacket: 0 packets, Jabber: 0 packets, Alignment: 0 packets
      Fragment: 0 packets, Undersized Frame: 0 packets
      RxPause: 0 packets
    Output:
      Unicast: 0 packets, Multicast: 0 packets
      Broadcast: 0 packets, JumboOctets: 0 packets
      Lost: 0 packets, Overflow: 0 packets, Underrun: 0 packets
      System: 0 packets, Overruns: 0 packets
      TxPause: 0 packets
    BER :  14688               
    BIP8:
      EB : 0                    BBE: 0                   
      ES : 0                    SES: 0                   
      UAS: 0                   
    Local fault: normal, Remote fault: normal.
    Last 300 seconds input utility rate:  0.00%
    Last 300 seconds output utility rate: 0.00%

    Qos car:
      Ingress discard packets:                          0 packets
      Egress  discard packets:                          0 packets
    Port-queue:
      Egress  discard packets:                          0 packets
    Arp vlan car:
      Ingress discard packets:                          0 packets
    Port packets:
      Receive packets equal to 64 bytes:                0 packets
      Receive packets 65~127 bytes:                     0 packets
      Receive packets 128~255 bytes:                    0 packets
      Receive packets 256~511 bytes:                    0 packets
      Receive packets 512~1023 bytes:                   0 packets
      Receive packets 1024~1518 bytes:                  0 packets
      Receive packets more than 1518 bytes:             0 packets
      Send packets equal to 64 bytes:                   0 packets
      Send packets 65~127 bytes:                        0 packets
      Send packets 128~255 bytes:                       0 packets
      Send packets 256~511 bytes:                       0 packets
      Send packets 512~1023 bytes:                      0 packets
      Send packets 1024~1518 bytes:                     0 packets
      Send packets more than 1518 bytes:                0 packets
    FEC Error Counter:
      FEC 0 error:                                      0
      FEC 1 error:                                      0
      FEC 0 and 1 type error:                           0
      FEC symbol error:                                 0
      FEC uncorrected error:                            0
      FEC error rate:                                   0x00000000(0.00E-0)

Remaining bandwidth deducted from channelized sub-interface: 100000 Mbits/sec
Table 1 Description of the display interface extensive command output
Item Description
Line protocol current state

Link layer protocol status of the interface:

  • UP.
  • DOWN (BFD status down): The bidirectional forwarding detection (BFD) session bound to the interface goes Down.
  • DOWN (Main BFD status down): The BFD session bound to the main interface goes Down, which changes the BFD session status on the sub-interface correspondingly. This state is available only for the sub-interface.
  • DOWN (Main bit-error-detection down): The status displayed on sub-interfaces when the bit error ratio of the interface exceeds the alarm threshold. By default, the bit error function on an interface associates with that on sub-interfaces.
  • DOWN (Bit-error-detection down): The bit error ratio on the interface exceeds the alarm threshold.
  • DOWN (dampening suppressed):The interface is being suppressed by the protocol module.
  • DOWN: The link layer protocol status of the interface is Down or no IP address is assigned to the interface.
    • The physical status of the main interface is Up, but the protocol status is Down.
    • Both the physical status and the protocol status of the sub-interface are Up.

    This is because the main interface without an IP address does not implement negotiation at the link layer, and its protocol status cannot go Up. However, the sub-interface assigned an IP address implements negotiation at the link layer, and therefore its protocol status goes Up.

  • UP (spoofing): The link layer protocol of the interface is always Up with the spoofing feature enabled.
Route Port

Layer 3 interface.
IP Sending Frames' Format is

Format of Ethernet frames sent by the interface.

PKTFMT_ETHNT_2 is the default frame format. When receiving frames, an Ethernet interface can identify the following formats:

  • PKTFMT_ETHNT_2.
  • Ethernet_SNAP.
  • 802.2.
  • 802.3.
Hardware address is

MAC address of the interface.
Last physical up time

Last time when the physical status of the interface went Up.

A hyphen (-) indicates that the physical status of the interface does not change.

When the interface goes Up, if the system is configured with a time zone and is in the summer time, the time is displayed in the format of YYYY/MM/DD HH:MM:SS UTC±HH:MM DST.
Last physical down time

Last time when the physical status of the interface goes Down.

A hyphen (-) indicates that the physical status of the interface does not change.

When the interface goes Down, if the system is configured with a time zone and is in the summer time, the time is displayed in the format of YYYY/MM/DD HH:MM:SS UTC±HH:MM DST.
Last 300 seconds input rate

Rate of the bit and the packet that pass through the interface in the last 5 minutes:

  • If the interface is in the hybrid mode, that is, it reads about all the packets on the LAN, use the error to test the traffic.
  • If the interface is not in the hybrid mode, that is, the interface records only the traffic sent and received by itself, the error displays only the traffic sent and received by the interface.

You can run the set flow-stat interval command to change the interval at which traffic statistics are collected.
Last 300 seconds input utility rate

Percentage of the rate for receiving packets to the total bandwidth.
Last 300 seconds output utility rate

Percentage of the rate for sending packets to the total bandwidth.
Current system time

Current system time.

If the system is configured with a time zone and is in the summer time, the time is displayed in the format of YYYY/MM/DD HH:MM:SS UTC±HH:MM DST.
Statistics last cleared

Last time when statistics on the interface were deleted.
Input

Total number and total bytes of received packets on an interface. Packets include correct packets (unicast, broadcast, multicast packets and JumboOctets), incorrect packets, and dropped packets.

  • 183126871 bytes, 182525 packets: number of correctly sent packets and bytes. The number of sent packets is the sum of the sent unicast, broadcast, and multicast packets.
  • Number of correctly received packets and bytes. The packets include:
    • Unicast.
    • Multicast.
    • Broadcast.
    • JumboOctets: Long packets with the packet length greater than or equal to 1518 bytes and less than or equal to the maximum value (9636 bytes), excluding other format errors.
  • Number of received incorrect packets and dropped packets of the following types:
    • CRC: Packets whose length is in the normal range but that contain that CRC error.
    • Symbol: Error packets at the physical layer.
    • Overrun: Packets that are discarded due to overflow.
    • InRangeLength: Packets with lengths ranging from 46 bytes to 1500 bytes, excluding other format errors.
    • LongPacket: Packets longer than the maximum packet length (9636 bytes), excluding other format errors.
    • Jabber: Packets longer than the maximum length (9636 bytes) and that contain the CRC error.
    • Alignment: Packets longer than 64 bytes and less than 1518 bytes and that contains the CRC error.
    • Fragment: Packets less than the minimum packet length and that contain the CRC error.
    • Undersized Frame: Short packets less than the minimum packet length.
    • RxPause: Received Pause packets.
Output

Total number and total bytes of sent packets on an interface. Packets include correct packets (unicast, broadcast, multicast packets and JumboOctets), incorrect packets, and dropped packets.

  • 183126871 bytes, 182525 packets: number of correctly sent packets and bytes.The number of sent packets is the sum of the sent unicast, broadcast, and multicast packets.
  • Number of correctly sent packets of the following types:
    • Unicast.
    • Multicast.
    • Broadcast.
    • JumboOctets: Long packets with the packet length greater than or equal to 1518 bytes and less than or equal to the maximum value (9636 bytes), excluding other format errors.
  • Number of sent incorrect packets and dropped packets of the following types:
    • Lost: Lost packets.
    • Overflow: Packets that are discarded due to overflow.
    • Underrun: Half packets.
    • System: Packets when system error occurs.
    • Overruns: Packets that are discarded due to overflow.
    • TxPause: Sent Pause packets.
Qos car

Number of packets discarded due to interface CAR. If the interface has been added to a trunk, this field is displayed as Qos car[Eth-Trunk1] or Qoscar[Ip-Trunk1].

  • Ingress discard packets: Number of packets discard in the uplink due to interface CAR. The statistics include those on the interface and its sub-interfaces.
  • Egress discard packets: Number of packets discard in the downlink due to interface CAR. The statistics include those on the interface and its sub-interfaces.
Arp vlan car

Number of packets discarded due to ARP VLAN CAR. The statistics include those on the interface and its sub-interfaces.

Ingress discard packets: Number of packets discarded in the uplink due to ARP VLAN CAR.
Port packets

Number of variable-length packets received and sent by interfaces.

  • Receive packets equal to 64 bytes.
  • Receive packets 65-127 bytes.
  • Receive packets 128-255 bytes.
  • Receive packets 256-511 bytes.
  • Receive packets 512-1023 bytes.
  • Receive packets 1024-1518 bytes.
  • Receive packets more than 1518 bytes.
  • Send packets equal to 64 bytes.
  • Send packets 65-127 bytes.
  • Send packets 128-255 bytes.
  • Send packets 256-511 bytes.
  • Send packets 512-1023 bytes.
  • Send packets 1024-1518 bytes.
  • Send packets more than 1518 bytes.

If the value of a statistical item is displayed as - -, this item is not supported.
The Maximum Transmit Unit is

MTU of the interface.

For example, the default MTU of an Ethernet interface is 1500 bytes. The packet whose size is greater than the MTU is fragmented before being transmitted. If fragmentation is not allowed, the packets are discarded.
FEC Error Counter

-FEC 0 error : Number of 0 bits corrected by FEC.

-FEC 1 error : Number of 1 bits corrected by FEC.

-FEC 0 and 1 type error : Accumulation of the FEC 0 error and FEC 1 error.

-FEC symbol error : FEC Corrected Bytes Count.

-FEC uncorrected error : Number of frames that cannot be corrected by FEC.

-FEC error rate : Pre-FEC BER.
GigabitEthernet0/1/0 current state

Physical status of the interface:

  • UP.
  • DOWN.
    • clock fault: The internal clock is faulty.
    • link fault: The data channels between the optical module, physical layer, and MAC layer are faulty.
    • negotiation fail: Interface parameter negotiation fails.
    • PMA fault: A fault occurs at the physical medium attachment (PMA) layer.
    • WIS fault: A fault occurs at the wide area interface sublayer (WIS).
    • PCS fault: A fault occurs at the physical coding sublayer (PCS). This fault may occur because the input data flow does not comply with the encoding/decoding format required by the protocol.
    • XGXS fault: A fault occurs at the XGMII extender sublayer (XGXS).
    • local fault: A fault occurs at the local end.
    • remote fault: A fault occurs at the remote end.
    • high BER: The bit error rate (BER) is high.
    • SFP fault: A fault occurs on the optical module.
    • IIC fault: An IIC access fault occurs.
    • Others: A synchronous digital hierarchy (SDH) fault occurs.
  • Administratively down: This state is displayed after the network administrator runs the shutdown command on the interface.
  • Flow Down: The status of the data flow on the interface is Down. This state is determined by the status of the mVRRP bound to the interface. If the mVRRP status is Backup or Initialized, the status of the data flow on the interface is Down.
Description

Interface description.

A maximum of 242 case-sensitive characters (including spaces) can be entered. The description helps you know the functions of the interface.

If the description command is not used to configure the interface description, the description is empty by default.
ifindex

Interface index.
Ipv4

Statistics about IPv4 incoming and outgoing traffic on an interface.

  • Last 300 seconds output rate: 0 bits/sec and 0 packets/sec indicate the bit and packet rates of outgoing IPv4 packets.
  • Last 300 seconds input rate: 0 bits/sec and 0 packets/sec indicate the bit and packet rates of incoming IPv4 packets.
  • Input 0 packets, 0 bytes: The total number and bytes of incoming IPv4 packets. The number of packets is equal to the sum of unicast, broadcast, and multicast packets. The number of bytes is equal to the sum of unicast, broadcast, and multicast bytes.
    • Unicast 0 packets, 0 bytes: number and bytes of incoming IPv4 unicast packets.
    • Multicast 0 packets, 0 bytes: number and bytes of incoming IPv4 multicast packets.
    • Broadcast 0 packets, 0 bytes: number and bytes of incoming IPv4 broadcast packets.
  • Output 0 packets, 0 bytes: The total number and bytes of outgoing IPv4 packets. The number of packets is equal to the sum of unicast, broadcast, and multicast packets. The number of bytes is equal to the sum of unicast, broadcast, and multicast bytes.
    • Unicast 0 packets, 0 bytes: number and bytes of outgoing IPv4 unicast packets.
    • Multicast 0 packets, 0 bytes: number and bytes of outgoing IPv4 multicast packets.
    • Broadcast 0 packets, 0 bytes: number and bytes of outgoing IPv4 broadcast packets.
  • Input bandwidth utilization: bandwidth utilization of incoming IPv4 packets.
  • Output bandwidth utilization: bandwidth utilization of outgoing IPv4 packets.
  • Frags: 0 need fragment, 0 fragmented, 0 fragment created, 0 could not fragment.

IPv4 fragment statistics. 0 need fragment indicates the number of IPv4 packets to be fragmented. 0 fragmented indicates the number of IPv4 packets that are successfully fragmented. 0 fragment created indicates the number of IPv4 packet fragments. 0 could not fragment indicates the number of IPv4 packets that fail to be fragmented.
Ipv6

Statistics about IPv6 incoming and outgoing traffic on an interface.

  • Last 300 seconds output rate: 0 bits/sec and 0 packets/sec indicate the bit and packet rates of outgoing IPv6 packets.
  • Last 300 seconds input rate: 0 bits/sec and 0 packets/sec indicate the bit and packet rates of incoming IPv6 packets.
  • Input 0 packets, 0 bytes: The total number and bytes of incoming IPv6 packets. The number of packets is equal to the sum of unicast, broadcast, and multicast packets. The number of bytes is equal to the sum of unicast and multicast bytes.
    • Unicast 0 packets, 0 bytes: number and bytes of incoming IPv6 unicast packets.
    • Multicast 0 packets, 0 bytes: number and bytes of incoming IPv6 multicast packets.
  • Output 0 packets, 0 bytes: The total number and bytes of outgoing IPv6 packets. The number of packets is equal to the sum of unicast, broadcast, and multicast packets. The number of bytes is equal to the sum of unicast and multicast bytes.
    • Unicast 0 packets, 0 bytes: number and bytes of outgoing IPv6 unicast packets.
    • Multicast 0 packets, 0 bytes: number and bytes of outgoing IPv6 multicast packets.
  • Input bandwidth utilization: bandwidth utilization of incoming IPv6 packets.
  • Output bandwidth utilization: bandwidth utilization of outgoing IPv6 packets.
Port-queue

Number of packets discarded in Port-queue.

Egress discard packets: number of packets discarded in the downlink.
Mpls
  • Mpls:
    • Frags: 0 need fragment indicates the number of Mpls packets to be fragmented.
Parent Topic: Basic Interface Configuration Commands
Copyright © Huawei Technologies Co., Ltd.
Copyright © Huawei Technologies Co., Ltd.
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