If non-Huawei-certified optical modules are used, the system may be unable to obtain correct information. You are advised to use Huawei-certified optical modules.
Optical signals sent from different types of sources can transmit over different distances due to negative effects of optical fibers, such as dispersion and attenuation. When connecting optical interfaces, select optical modules and fibers according to the longest signal transmission distance.
Run the display transceiver interface interface-type interface-number command to view the transmission distance of a specified optical module.
<HUAWEI> display transceiver interface gigabitethernet 0/0/1
GigabitEthernet0/0/1 transceiver information:
-------------------------------------------------------------
Common information:
Transceiver Type :1000_BASE_SX_SFP
Connector Type :LC
Wavelength(nm) :850
Transfer Distance(m) :0(9um),:300(50um),150(62.5um)
Digital Diagnostic Monitoring :YES
Vendor Name :HUAWEI
Vendor Part Number :02318169
Ordering Name :
-------------------------------------------------------------
Manufacture information:
Manu. Serial Number :CD25HP12M
Manufacturing Date :2013-06-184
Vendor Name :HUAWEI
-------------------------------------------------------------