Dasan V5808 - Bandwidth Scheduler; Auto ONU Fault Detection

UMN:CLI User Manual
V5808
630
12.1.3.2 Bandwidth Scheduler
To allocate the bandwidth of the best effort traffic according to the fairness criterion, use
the following command.
Command
Mode
Description
olt bw-scheduler be-fairness-
method {guaranteed | maximum}
GPON-OLT
Configures the bandwidth scheduler.
be-fairness-method: best effort fairness method
configuration
guaranteed: according to guaranteed bw
maximum: according to maximum bw
To display the status of OLT’s bandwidth scheduler, use the following command.
Command
Mode
Description
show olt bw-scheduler [OLT-ID]
Enable
Global
GPON
Shows the status of OLT’s bandwidth scheduler.
show olt bw-scheduler
GPON-OLT
12.1.4 Auto ONU Fault Detection
If a certain ONU’s laser is enabled consistently by an optical module’s fault, all other
normal ONUs connected to the same OLT will be deregistered; a single ONU fault may
cause a whole network disruption. Preventing such a problem, the V5808 provides the
auto ONU (ONT) fault detection feature. Normally, if an ONU (ONT) fault occurs, a
specific error signal is followed by the fault. Thus, the V5808 validates whether an ONU
(ONT) fault occurs by detecting the specific error signal. The auto ONU fault detecting
mechanism is as follows:
When detecting an error signal (an ONU fault) in a certain OLT, the V5808 generates a
corresponding syslog message, and then disables the laser of each ONU currently
connected to the OLT one by one for 60 seconds. At the moment that the faulty ONU’s
laser is disabled, the error signal also disappears, then the system realizes that which the
faulty ONU is and memorizes its serial number. After 60 seconds, when the disconnected
ONUs (ONTs) start to enable their laser, if the ONU having the same serial number
memorized before tries to enable its laser, the V5808 disables the laser permanently. To
resume the laser, the ONU needs a power reset.
To enable/disable the auto ONU fault detection, use the following command.
Command
Mode
Description
olt signal-check {enable |
disable}
GPON-OLT
Enables/disables the auto ONU (ONT) fault detection.
(When an ONU fault occurs, the system will only
generate the syslog message.)
olt signal-check auto-onu-block
{enable | disable}
Enables/disables the auto ONU (ONT) fault detection.
(When an ONU fault occurs, the system will disable the