display wavelength-capability

Function

The display wavelength-capability command displays the wavelength frequency capability table of an optical module on a specified port.

Format

display wavelength-capability interface { interface-name | interface-type interface-number }

Parameters

Parameter	Description	Value
interface interface-type	Specifies an interface type.	-
interface interface-number	Specifies an interface number.	-
interface interface-name	Specifies an interface name.	-

Parameter

Description

Value

interface interface-type

Specifies an interface type.

interface interface-number

Specifies an interface number.

interface interface-name

Specifies an interface name.

Views

All views

Default Level

1: Monitoring level

Task Name and Operations

Task Name	Operations
interface-mgr	read

Usage Guidelines

Usage Scenario

Before configuring a wavelength and frequency for a tunable DWDM optical module whose channel spacing is not 50GHz on an interface, run display wavelength-capability interface interface-name command to check the wavelength and frequency supported by the DWDM optical module.

Example

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

# Query the wavelength frequency capability table of the optical module.

<HUAWEI> display wavelength-capability interface GigabitEthernet0/1/16
---------------------------------------- 
    Index  Frequency Wavelength          
     Num     (THz)    (nm)               
---------------------------------------- 
      01      196.10   1528.773          
      02      196.05   1529.163          
      03      196.00   1529.553          
      04      195.95   1529.944          
      05      195.90   1530.334          
      06      195.85   1530.725          
      07      195.80   1531.116          
      08      195.75   1531.507          
      09      195.70   1531.898          
      10      195.65   1532.290          
      11      195.60   1532.681

**Table 1** Description of the **display wavelength-capability** command output
Item	Description
Frequency(THz)	Frequency of the center wavelength of the optical module (unit: THz).
Wavelength(nm)	Center wavelength of the optical module (unit: nm).
IndexNum	Indicates the center wavelength number of the optical module that can be configured.