User Manual
UMN:CLI
V5824G
475
11.1.8
MAC Aging Time
To manage a MAC table in the OLT system, use the following command.
Command
Mode
Description
olt mac aging-time
<30-86400>
GPON-OLT
Specifies MAC aging time.
30-86400: aging time (default: 300s)
11.1.9
OLT Link Down Detection
If the power of ONU is turned off by user, this ONU is supposed to send the alarm
message of dying-gasp to OLT. When the last ONU is deregistered from the V5824G after
it generates an alarm by ONU dying-gasp event, we can regard that the link of this GPON
port is down and it
’s not the cable connection problem.
To enable/disable GPON link down detection, use the following command.
Command
Mode
Description
olt cable-down enable
GPON
Enables GPON link down detection
olt cable-down disable
Disables GPON link down detection
To set a number of ONUs that are deregistered without dying-gasp alarm message for
detecting the PON link of OLT, use the following command.
Command
Mode
Description
olt cable-down reference-count
<1-8>
GPON
Sets the number of deregistered ONUs without sending
dying-gasp alarms. The numbers indicate the abnormal
behavior that the link of GPON port is down.
1-8: count of inactive ONU (default: 3)
no olt cable-down reference-
count
Deletes a configured number of deregistered ONUs
and returns to the default value.
To use this feature, the dying-gasp alarms should be enabled for each GPON-OLT node.
To display the state of GPON link down detection, use the following command.
Command
Mode
Description
show olt cable-down
GPON
Shows the configuration of GPON link down detection.
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