User Manual
UMN:CLI
V8102
767
13.2.5
Loopback
To enable/disable the loopback for UNI of ONU, use the following command.
Command
Mode
Description
onu loopback ONU-IDs uni eth
UNI-PORTs
{
enable type 3
|
dis-
able
}
Interface
[GPON]
Enables/disables the loopback for the specified Ether-
net (type 3) UNI port of ONU.
ONU-IDs: ONU ID (1 to 128) or ONU serial number
UNI-PORTs: UNI port number
onu loopback ONU-IDs uni ces
UNI-PORTs
{
enable type
<1-5> |
disable
}
Enables/disables the loopback for the specified
CES/TDM UNI port of ONU.
ONU-IDs: ONU ID (1 to 128) or ONU serial number
UNI-PORTs: UNI port number
1: payload loopback
2: line loopback
3: OpS-directed loopback 1 (loopback from/to PON
side)
4: OpS-directed loopback 2 (loopback from/to CES UNI
side)
5: OpS-directed loopback 3 (loopback of both PON
side and CES UNI side)
To see the status of the ONU (ONT) UNI, use
show onu uni-status
command. (See
13.2.22 Displaying ONU Information
13.2.6
ONU Laser Down
If a certain ONU
’s laser is enabled consistently by an optical transceiver’s fault, all other
normal ONUs connected to the same OLT will be deregistered; a single ONU fault may
cause a whole network disruption.
To prevent such a problem, you can manually disable the laser (TX power of transceiver)
of the faulty ONU considered as the cause of the problem. By the way, if you disable the
laser without specifying laser-off time, the ONU needs a power reset to resume the laser.
To disable an ONU
’s laser, use the following command.
Command
Mode
Description
onu tx-off-optic ONU-ID
[<1-
65525>]
Interface
[GPON]
Disables an
ONU’s laser for specified time. After the
time, the laser will be enabled.
ONU-ID: 1-128 or ONU serial number
1-65525: disable transceiver during input times
(unit:sec)
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