User Manual
UMN:CLI
V5824G
493
11.2.5
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
|
disable
}
GPON-OLT
Enables/disables the loopback for the specified
Ethernet (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
11.2.20 Displaying ONU Information
11.2.6
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>]
GPON-OLT
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)
i
