FAQ. ZTE OLT equipment polling
SNMP configuration
By default, OLT does not give all required partitions via SNMP. They must be enabled.
snmp-server community COMMUNITY view allview rw snmp-server view allview org included snmp-server view allview internet included snmp-server view allview mgmt included snmp-server view allview mib-2 included snmp-server view allview system included snmp-server view DefaultView system included
Incorrect identification of ONU interfaces on C320 FW v2.1.0 chassis
If the interface names of your ONUs are onu:25 instead of epon-1/2/3:25, then you'll need to configure mib-compatibility iftable v2 on your OLT. First things first.
Diagnosis of the problem.
While in the USERSIDE of your OLT card, click on the "Interface List" link at the bottom left. If you see interfaces whose indexes start with 26..., the problem is present.
This is what the interface indexes look like when there is a problem (starting at 26...):
.1.3.6.1.2.1.31.1.1.1.1.268500992 = gpon_1/2/1 .1.3.6.1.2.1.31.1.1.1.1.268501248 = gpon_1/2/2 .1.3.6.1.2.1.31.1.1.1.1.268501504 = gpon_1/2/3
This is how the interface indexes should look like (starting with 28...):
.1.3.6.1.2.1.31.1.1.1.1.285278721 = gpon_1/2/1 .1.3.6.1.2.1.31.1.1.1.1.285278722 = gpon_1/2/2 .1.3.6.1.2.1.31.1.1.1.1.285278723 = gpon_1/2/3
Problem solution
You can solve this problem by setting the correct mode (v2) of interface indexing. In the CLI of your OLT, add the following command to the configuration:
mib-compatibility iftable v2
After executing this command, read the "Interface list" from the hardware card again. The interface indexes should now start with 28... as shown in the example above. If successful, now go to Edit - Configure Interfaces/Stacking and click "Save" on the interface list. Once you have done this, make sure that the indexing in this setting has changed to the new setting.
To reinitialise the GTGO and ETGO slots, the OLT must be rebooted. Without a reboot, the interfaces on these slots will continue to be indexed in the old way.
After rebooting, go to the List of connected ONUs and re-read it by clicking on Update. Now all ONUs should be connected to the correct PON ports on the OLT.
In case it didn't work
In the configuration of your OLT, you will find information about slots like this one:
add-rack rackno 1 racktype C320Rack add-shelf rackno 1 shelfno 1 shelftype C320_SHELF add-card rackno 1 shelfno 1 slotno 1 GTGO add-subcard rackno 1 shelfno 1 slotno 3 subcardno 1 UCDC/3
Delete the GTGO and ETGO slots with the following command, specifying the slot number:
del-card slotno 1
Save the configuration and reboot the OLT. On boot the slots will be re-initialised and the indexing of PON interfaces will now be correct.