display interface null
Parameters
| Parameter | Description | Value |
|---|---|---|
| 0 | Specifies the number of the null interface. | The value can be 0 only. |
| main | Displays status and traffic statistics about a Null interface. A Null interface has no sub-interfaces. Status and traffic statistics about a Null interface are displayed whether you specify the main parameter or not. |
- |
Usage Guidelines
The display interface null command displays the status of a null interface. The interface status information includes: the physical status, link layer protocol status, description, MTU, current system time, last time statistics about the null interface are cleared, incoming and outgoing packet rates in bit/s and pps, total numbers of packets and bytes received and sent by the null interface, and percentages of the rates for receiving and sending packets to the total bandwidth.
Precautions
There is only one null interface, namely, NULL 0.
Example
# Display the status of Null 0 interface.
<AC6605> display interface null 0
NULL0 current state : UP
Line protocol current state : UP (spoofing)
Description:HUAWEI, AC Series, NULL0 Interface
Route Port,The Maximum Transmit Unit is 1500
Internet protocol processing : disabled
Physical is NULL DEV
Current system time: 2011-12-12 10:28:12+08:00
Last 300 seconds input rate 0 bits/sec, 0 packets/sec
Last 300 seconds output rate 0 bits/sec, 0 packets/sec
Realtime 0 seconds input rate 0 bits/sec, 0 packets/sec
Realtime 0 seconds output rate 0 bits/sec, 0 packets/sec
Input: 0 bytes
Output:0 bytes
Input bandwidth utilization : 0%
Output bandwidth utilization : 0%
Item |
Description |
|---|---|
NULL0 current state |
Physical status of the null interface. The physical status of the null interface is always Up. |
Line protocol current state |
Link layer protocol status of the interface. The protocol status of the null interface is always Up. |
Description |
Description of the interface, which can be set by using the description command. |
Route Port,The Maximum Transmit Unit is 1500 |
The MTU is 1500 bytes. |
Internet protocol processing |
Whether Internet protocol processing is enabled.
|
Physical is NULL DEV |
The interface is null. |
Current system time |
Current system time. |
Last 300 seconds input rate Last 300 seconds output rate |
Rates for sending and receiving the bytes and the packets by the interface in the last five minutes. |
Realtime 0 seconds input rate Realtime 0 seconds output rate |
Real-time rates of sending and receiving the bytes and the packets. It refers to the interval between two display commands that are run on the same interface. The maximum value is the statistical interval displayed in the previous piece of information. This entry is displayed only when information about a logical interface is viewed. |
Input |
Total number of packets and the total number of bytes received by the interface. |
Output |
Total number of packets and the total number of bytes sent by the interface. |
Input bandwidth utilization |
Percentage of the rate for receiving packets to the total bandwidth. |
Output bandwidth utilization |
Percentage of the rate for sending packets to the total bandwidth. |
