How to Measure the Transmit Optical Power of an Huawei OLT PON Port?

Check whether the optical module on a PON port of the OLT works properly by measuring the transmit optical power.

Prerequisites

• The OLT is powered on.
• The PON board is in the normal state.
• The PON port is enabled.

Tools, Meters and Materials

• Single-mode fiber jumper with the SC/PC connector. No longer than 1 m. Best to use new jumper.
• Burst optical power meter or ordinary optical power meter.

Impact on the System
When the transmit optical power of a PON port on Huawei OLT is measured, the PON port will fail to transmit any service.

Precautions
Before or after measuring the optical power, you need to clean the connector of the optical fiber. This is because if a contaminated optical fiber is connected to a normal optical fiber connector, the connector will be contaminated, which leads to abnormal attenuation and reflection and thus affecting optical path quality.

Procedure
Step 1 Configuring the measure parameters of the optical power meter.
Unit of optical power: dBm
Wavelength: 1490 nm
Step 2 Connect the optical power meter directly to the optical module on the OLT PON port using optical fiber jumper, as shown in Figure The value on the optical power meter is the transmit optical power of Huawei OLT MA5800 PON port.

• If the value on the optical power meter changes within a range of 0.2 dBm, take the average value.
• If the value on the optical power meter changes in a range wider than 0.2 dBm, then it is possible that the fiber is not properly connected, the fiber is excessively bent, or the fiber connector has dust.
• Do not bend the fiber. A bent fiber may affect the test result.

Step 3 Compare the test result with the optical module parameters of the corresponding board in the hardware description.

Anyone knows how to configuring the Internet Access Service on Huawei OLT MA5800?

Huawei OLT MA5800 is connected to the remote ONT through a GPON port to provide users with highspeed Internet access services.

Prerequisites
The OLT is connected to the BRAS.
Related configurations are performed on the BRAS according to the authentication and
accounting requirements for dialup users. For details about the configuration, see the
configuration guide.
The ONT has been added to the OLT.
The VLAN of the LAN switch port connected to the OLT is consistent with the upstream
VLAN of the OLT.

Residential users generally access the Internet in Point-to-Point Protocol over Ethernet
(PPPoE) dial-up mode. PPPoE dial-up can be performed on personal computers (PCs) or
HGWs.

The configuration processes on HGWs of different models or in different appearances
are similar. This topic describes how to configure the Internet access service on an
HG239 that is connected to an ONT upstream through a LAN.

Procedure
l Configure Huawei OLT.
a. Configure a traffic profile.
Run the display traffic table ip command to query existing traffic profiles in the system. If the traffic profiles existing in the system do not meet the requirements, you need to run the traffic table ip command to add a traffic profile.
Set the profile ID to ftth_hsi, the CIR to 4 Mbit/s, and the priority to 0. In addition, configure the scheduling mode so that packets are scheduled according to their priorities.

huawei(config)#traffic table ip name ftth_hsi cir 4096 priority 0
priority-policy local-setting

b. Configure the mapping between a GEM port and a VLAN.
The service flow of user-side VLAN 45 is mapped to GEM port 14 in the ONT line profile.

huawei(config)#ont-lineprofile gpon profile-name ftth
huawei(config-gpon-lineprofile-1)#gem mapping 14 0 vlan 45
huawei(config-gpon-lineprofile-1)#commit
huawei(config-gpon-lineprofile-1)#quit

c. Configure the VLAN of the Ethernet port on the ONT HG8546M.
Add Ethernet port 1 to VLAN 45 in the ONT service profile.
huawei(config)#ont-srvprofile gpon profile-name ftth
huawei(config-gpon-srvprofile-1)#port vlan eth 1 45
huawei(config-gpon-srvprofile-1)#commit

d. Create an Internet access service VLAN and add an upstream port to it.
Add upstream port 0/9/0 to VLAN 100.
huawei(config)#vlan 100 smart
huawei(config)#vlan attrib 100 stacking
huawei(config)#port vlan 100 0/9 0

e. Create Internet access service flows.
Set S-VLAN ID to 100 and GEM port ID to 14. Use traffic profile ftth_hsi.
huawei(config)#service-port vlan 100 gpon 0/1/0 ont 1 gemport 14 multiservice
user-vlan 45 tag-transform translate-and-add
inner-vlan 1001 inbound traffic-table name ftth_hsi outbound traffictable
name ftth_hsi
huawei(config)#service-port vlan 100 gpon 0/1/0 ont 2 gemport 14 multiservice
user-vlan 45 tag-transform translate-and-add
inner-vlan 1002 inbound traffic-table name ftth_hsi outbound traffictable
name ftth_hsi

f. Save the data.
huawei(config)#save

Configure the HGW.
a. Log in to the web configuration window.
i. Enter the default IP address in the address bar of the browser, and then press
Enter.
ii. In the login window, enter the user name and password (the default value is
provided by ISP) of the administrator and click OK.
b. Set parameters for the Internet access service.
i. Choose Internet access service configuration from the navigation tree.
ii. Set parameters for the Internet access service.
iii. Submit the configuration.