display interface ethernet brief

Function

The display interface ethernet brief command displays brief information about Ethernet interfaces.

Format

display interface ethernet brief [ main ]

Parameters

Parameter	Description	Value
main	Displays brief information about Ethernet main interfaces.	-

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

Usage Scenario

You can use the display interface ethernet brief command to view brief information about Ethernet interfaces, including the physical status, auto-negotiation mode, duplex mode, rate, and average inbound and outbound bandwidth usages within the last period of time. This information helps you locate and rectify faults.

Precautions

To clear statistics on an interface, run the reset counters interface command.

Example

# Display brief information about Ethernet interfaces.

<HUAWEI> display interface ethernet brief
PHY: Physical                                                                   
*down: administratively down                                                    
#down: LBDT down                                               
(l): loopback                                                                   
(b): BFD down                                                                   
InUti/OutUti: input utility/output utility                                      
Interface                   PHY   Auto-Neg Duplex Bandwidth  InUti OutUti Trunk 
GigabitEthernet0/0/1        up    enable   half        100M  0.06%   100%    -- 
GigabitEthernet0/0/2        up    enable   full       1000M   100%   100%    -- 
GigabitEthernet0/0/3        up    enable   full       1000M     0%   100%    -- 
GigabitEthernet0/0/4        up    enable   full       1000M   100%   100%     1 
GigabitEthernet0/0/5        up    enable   full       1000M    99%   100%    -- 
GigabitEthernet0/0/6        down  enable   half       1000M     0%     0%    -- 
GigabitEthernet0/0/7        down  enable   half       1000M     0%     0%    -- 
GigabitEthernet0/0/8        down  enable   full       1000M     0%     0%    -- 
GigabitEthernet0/0/9        down  enable   full       1000M     0%     0%    -- 
GigabitEthernet0/0/10       down  enable   full       1000M     0%     0%    -- 
GigabitEthernet0/0/11       down  enable   full       1000M     0%     0%    -- 
GigabitEthernet0/0/12       down  enable   full       1000M     0%     0%    -- 
GigabitEthernet0/0/13       down  enable   full       1000M     0%     0%    -- 
GigabitEthernet0/0/14       down  enable   full       1000M     0%     0%    -- 
GigabitEthernet0/0/15       down  enable   full       1000M     0%     0%    -- 
GigabitEthernet0/0/16       down  enable   full       1000M     0%     0%    -- 
GigabitEthernet0/0/17       down  enable   full       1000M     0%     0%    -- 
GigabitEthernet0/0/18       down  enable   full       1000M     0%     0%    -- 
GigabitEthernet0/0/19       down  enable   full       1000M     0%     0%    -- 
GigabitEthernet0/0/20       down  enable   full       1000M     0%     0%    -- 
GigabitEthernet0/0/21       down  enable   full       1000M     0%     0%    -- 
GigabitEthernet0/0/22       down  enable   full       1000M     0%     0%    -- 
GigabitEthernet0/0/23       down  enable   full       1000M     0%     0%    -- 
GigabitEthernet0/0/24       down  enable   full       1000M     0%     0%    -- 
MEth0/0/1                   down  enable   half        100M     0%     0%    --

**Table 1** Description of the **display interface ethernet brief** command output
Item	Description
Interface	Type and number of an interface. All interfaces are displayed in alphabetical order. Information about the following interfaces can be displayed: MEth0/0/1 interface FE interface GE interface XGE interface 25GE interface MultiGE interface 40GE interface 100GE interface
PHY	Physical status of an interface: up: indicates that the interface works properly. down: indicates that the physical layer of the interface fails. down: refers to administratively down, indicating that the administrator has run the shutdown (interface view)* command on the interface. #down: LBDT down, indicating that loop detection is enabled on the interface. The interface is shut down when the device detects a loop on the downstream network or between interfaces. (l): refers to loopback, indicating that the loopback function is enabled on the interface. (b): indicates that the physical layer of the interface is in BFD down state.
Auto-Neg	Whether auto-negotiation is enabled on an interface: enable: indicates that auto-negotiation is enabled on the interface. disable: indicates that auto-negotiation is disabled on the interface. To configure the auto-negotiation mode for an interface, run the negotiation auto command.
Duplex	Duplex mode of an interface: full: indicates the full-duplex mode. half: indicates the half-duplex mode. In auto-negotiation mode, use the auto duplex command to configure the duplex mode of an interface. In non-auto negotiation mode, use the duplex command to configure the duplex mode of an interface.
Bandwidth	Bandwidth on the interface.
InUti	Average inbound bandwidth usage within the last 5 minutes. Average inbound bandwidth usage = Average inbound rate within the last 5 minutes/Interface bandwidth When the average bandwidth usage is smaller than 0.01% and greater than 0.005%, the value 0.01% is displayed. When the average bandwidth usage is smaller than 0.005% and greater than 0, the value 0 is displayed. When the interface bandwidth becomes smaller, for example, the bandwidth is changed using the speed command, or when an Eth-Trunk member interface becomes Down or is removed from the Eth-Trunk, the bandwidth usage be displayed as 100% because the communication traffic is not adjusted in time.
OutUti	Average outbound bandwidth usage within the last 5 minutes. Average outbound bandwidth usage = Average outbound rate within the last 5 minutes/Interface bandwidth When the average bandwidth usage is smaller than 0.01% and greater than 0.005%, the value 0.01% is displayed. When the average bandwidth usage is smaller than 0.005% and greater than 0, the value 0 is displayed. When the interface bandwidth becomes smaller, for example, the bandwidth is changed using the speed command, or when an Eth-Trunk member interface becomes Down or is removed from the Eth-Trunk, the bandwidth usage be displayed as 100% because the communication traffic is not adjusted in time.
Trunk	Number of the Eth-Trunk to which an interface is added.