How to adding an ONU to an OLT?

Services can be configured for an ONU only after the ONU is successfully added to an OLT.
Context
When an ONU is added, desired profiles, including the dynamic bandwidth allocation
(DBA) profile, line profile, and alarm profile, must be bound to the ONU. For details
about functions and configuration methods for these profiles
Procedure

Step 1 Configure GPON ONU profiles.
1. Configure a DBA profile.
2. Configure an ONU line profile.
a. Add GPON ONU line profile 10 fttb(c).
b. In the line profile mode, bind the T-CONT to the DBA profile.
c. In the line profile mode, create a GEM port for each T-CONT.
d. Configure mapping between the GEM port and the ONU-side service.
e. After the configuration is completed, run the commit command to make the configured parameters take effect.
3. (Optional) Add an alarm profile.
– The ID of the default Huawei GPON alarm profile is 1. The thresholds for all the alarm parameters in the default alarm profile are 0, which indicates that no alarm is generated.
– In this example, the default alarm profile is used and therefore the configuration of the alarm profile is not required.

Step 2 Add an Huawei ONU to an Huawei OLT.
Assume that the ID of GPON port 0/2/1 is 1, SN is 32303131B39FD641, management mode
is SNMP, and the bound line profile is fttb(c). Connect the ONU to such a GPON port through
the optical splitter.
There are two modes to add an ONT: add an ONT offline and confirm an automatically
discovered ONU.

• Add an ONU offline.
• Confirm an automatically discovered ONU.

1. (Optional) Bind the alarm profile to the ONU.
By default, alarm profile 1 automatically bound to an ONU. A non-default alarm profile
is bound manually only when the default one does not meet the requirement.
In this example, default alarm profile 1 is used and therefore the configuration of the
alarm profile is not required.

Step 3 Check the ONU status.

After Huawei ONU is added, run the display ont info command to query the current status of the
ONU. Ensure that Config flag of the ONU is active, Run State is online, and Config state is

normal.
Follow-up Procedure
When Config state is failed, Run state is offline, or Match state is mismatch:
If Control flag is deactive, run the ont active command in GPON mode to activate the
ONU.
If Run state is offline, a physical line may be broken or the optical module may be
damaged. Check the line and the optical module.
lIf Config state is failed, the configured ONU capability exceeds the actual ONU
capability. In this case, run the display ont failed-configuration command in the
diagnose mode to check the failed configuration item and the failure cause. Then, rectify
the fault accordingly.
If the ONU does not match (Match state is mismatch), the port types and number of
ports do not match the actual port types and number of ports supported by the ONU. In
this case, run the display ont capability command to query the actual capability of the
ONU, and then select one of the following modes to modify the ONU configuration:
– Create a proper ONU profile according to the actual capability of the ONU, and
then run the ont modify command to modify the configuration data of the ONU.
– Modify the ONU profile according to the actual capability of the ONU and save the
modification. Then, the ONU automatically recovers the configuration successfully.