Example for Managing Interfaces

This section uses an example to describe how to configure interface parameters, such as the interface description, maximum transmission unit (MTU), and interval at which traffic statistics are collected.

Networking Requirements

To ensure smooth communication between devices on a network, you need to configure both physical and logical interfaces properly and set the following parameters:

Interface description
MTU
Trap threshold for the outbound and inbound bandwidth usage on a specified interface
Interval at which traffic statistics are collected
Whether the device sends a trap message to the network management system (NMS) when the interface status changes
Whether the control-flap function is enabled

Configuration Roadmap

The configuration roadmap is as follows:

Configure description for an interface.
Set an MTU for the interface to ensure successful packet transmission over the interface.
Set the interval at which traffic statistics (including the traffic volumes and rates) are collected globally.
Create a sub-interface and set an MTU for the sub-interface so that packets can reach the receiver.

Data Preparation

To complete the configuration, you need the following data:

Interface name
Interface description
Interface MTU
Interval at which traffic statistics are collected globally
Sub-interface MTU

Procedure

Configure description for an interface.

<HUAWEI> system-view
[~HUAWEI] interface gigabitethernet 0/1/8
[~HUAWEI-GigabitEthernet0/1/8] description for IFM
[*HUAWEI-GigabitEthernet0/1/8] commit

Set an MTU for the interface.

[*HUAWEI-GigabitEthernet0/1/8] mtu 1000
[*HUAWEI-GigabitEthernet0/1/8] commit
[~HUAWEI-GigabitEthernet0/1/8] quit

Set the interval at which traffic statistics are collected globally.
```
[*HUAWEI] set flow-stat interval 100
[*HUAWEI] commit
```

Create a sub-interface and set the MTU of the sub-interface.

[*HUAWEI] interface gigabitethernet 0/1/8.1
[*HUAWEI-GigabitEthernet0/1/8.1] mtu 800
[*HUAWEI-GigabitEthernet0/1/8.1] commit

Configuration Files

#
sysname HUAWEI
#
set flow-stat interval 100
#
interface gigabitethernet0/1/8
 description for IFM
 mtu 1000
#
interface gigabitethernet0/1/8.1
 mtu 800
#
return