display ip interface

Format

display ip interface [ interface-name | interface-type interface-number ]

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

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 and number of an interface.

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

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 check the sending and receiving of some types of packets on the interface, run the display ip interface command to view the interface status and collect statistics on the interface. The obtained information helps you check whether the network is under attack and possible attack sources.

Implementation Procedure

Run the display interface description command to view the description of the interface.
Run the display interface command to view detailed information about the operation and statistics of the interface.

Precautions

If an interface is used for services exclude IP services, no information about the interface is displayed.

Example

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

# Display specific information about GE 0/1/1.

<HUAWEI> display ip interface gigabitethernet 0/1/1
GigabitEthernet0/1/1 current state : UP
Line protocol current state : DOWN
The Maximum Transmit Unit : 1500 bytes
input packets : 0, bytes : 0, multicasts : 0
output packets : 0, bytes : 0, multicasts : 0
Directed-broadcast packets:
 received packets:            0, sent packets:              0
 forwarded packets:           0, dropped packets:           0
ARP packet input number:           0
  Request packet:                  0
  Reply packet:                    0
  Unknown packet:                  0
Internet protocol processing : disabled
Broadcast address : 0.0.0.0
TTL being 1 packet number:         0
TTL invalid packet number:         0
ICMP packet input number:          0
  Echo reply:                      0
  Unreachable:                     0
  Source quench:                   0
  Routing redirect:                0
  Echo request:                    0
  Router advert:                   0
  Router solicit:                  0
  Time exceed:                     0
  IP header bad:                   0
  Timestamp request:               0
  Timestamp reply:                 0
  Information request:             0
  Information reply:               0
  Netmask request:                 0
  Netmask reply:                   0
  Unknown type:                    0
DHCP packet deal mode: global

**Table 1** Description of the **display ip interface** command output
Item	Description
current state	Physical status: UP. DOWN. Administratively DOWN: If the administrator uses the shutdown command on the interface, the state is Administratively Down.
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 (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. For example, if no IP address is assigned to an IP service-capable interface,its protocol status is Down. UP (spoofing): The link layer protocol of the interface is always Up with the spoofing feature enabled.
input packets	Total number of packets, bytes, and multicast packets received by the interface.
output packets	Total number of packets, bytes, and multicast packets sent by the interface.
Directed-broadcast packets	Number of packets broadcast on the interface directly.
received packets	Total number of packets received by the interface.
forwarded packets	Total number of packets forward by the interface.
ARP packet input number	Total number of ARP packets received by the interface.
Request packet	Number of request packets.
Reply packet	Number of response packets.
Unknown packet	Number of unknown packets.
Unknown type	Number of packets of the unknown type.
Internet protocol processing	IP address and subnet mask of the interface.
Internet Address is unnumbered	Unnumbered IP Address of Interface.
Broadcast address	Broadcast address of the interface.
TTL being 1 packet number	Number of packets with time to live (TTL) of 1.
TTL invalid packet number	Number of packets with invalid TTL values.
ICMP packet input number	Number of received Internet Control Message Protocol (ICMP) packets.
Echo reply	Number of echo-reply packets.
Echo request	Number of echo-request packets.
Source quench	Number of source suppress packets.
Routing redirect	Number of redirected packets.
Router advert	Number of router-advertising packets.
Router solicit	Number of router-soliciting packets.
Time exceed	Number of timeout packets.
IP header bad	Number of packets with the corrupted IP header.
Timestamp request	Number of timestamp-requiring packets.
Timestamp reply	Number of timestamp-replying packets.
Information request	Number of information-requiring packets.
Information reply	Number of information-replying packets.
Netmask request	Number of mask-requiring packets.
Netmask reply	Number of mask-replying packets.
DHCP packet deal mode	DHCP packet deal mode. global: DHCP Relay is disabled. Relay: DHCP Relay is enabled.
Unreachable	Number of packets with unreachable destination.