When managing an Avies OLT in an FTTH network, it’s common to have some ONU devices go offline permanently due to customer disconnection, hardware issues, or port changes. Keeping these offline ONUs in the configuration list can cause clutter and confusion during maintenance. This guide will show you, step by step, how to identify and delete offline ONU from Avies OLT using CLI mode.
Why Should You Delete Offline ONU?
We know that in EPON technology, each PON port on an OLT can support a maximum of 64 ONUs, and in GPON technology, each PON port can support up to 128 ONUs. Often, the PON port becomes full because the offline ONUs are not deleted, which prevents adding new valid ONUs. Therefore, it is necessary to delete the MAC addresses of the unnecessary offline ONUs from the OLT.
- Keep your ONU list clean and organized.
- Reduce confusion during troubleshooting.
- Free up resources for new ONU registrations.
- Maintain better network performance and accuracy.
Step 1: Access Your Avies OLT via CLI
You can access the OLT using a console cable or Telnet. Use any terminal software such as PuTTY or SecureCRT and log in with your admin credentials.
OLT Access:
When a networking device is configured first we need to log into that device. The device cannot be configured without logging in. You can access Aveis olt in 2 ways. The first way is NMS Port and the other way is Console Port. We will enter OLT through the NMS Port of OLT.
Aveis EPON OLT Deafult IP:
IP Address: 192.168.100.1
Username: root
Password: admin
Username: root Password: admin
Once logged in, enter the global configuration mode:
OLT> enable OLT# configure OLT(config)#
Step 2: Check Offline ONU List
To see which ONUs are currently online and offline on all PON port, use the following command:
OLT(config)# show onu-info all
Example Output:
---------------------------------------------------------------------------------------------------- PON/ONU Mac-Address Status Auth Cfg Reg-time ONU-Name ONU-Desc ---------------------------------------------------------------------------------------------------- 1/1 a2:3e:06:23:be:c0 Offline TRUE TRUE 2025/10/08 20:38:41 ONU01/57 NO-DESCRIPTI 1/2 c0:7e:40:a9:10:20 Online TRUE TRUE 2025/10/08 20:38:48 ONU01/02 NO-DESCRIPTI 1/3 00:d3:9e:65:d7:0e Online TRUE TRUE 2025/10/08 21:27:33 ONU01/03 NO-DESCRIPTI 1/4 1c:ef:03:e8:bd:fa Online TRUE TRUE 2025/10/08 21:27:51 ONU01/04 NO-DESCRIPTI 1/5 1c:ef:03:40:a4:98 Online TRUE TRUE 2025/10/08 20:38:44 ONU01/35 NO-DESCRIPTI 1/6 f8:75:88:20:bf:be Offline TRUE TRUE 2025/10/08 20:38:44 ONU01/06 NO-DESCRIPTI 1/7 00:d3:9e:ae:a1:c4 Online TRUE TRUE 2025/10/08 20:38:49 ONU01/07 NO-DESCRIPTI 1/8 80:14:a8:d3:e3:d0 Online TRUE TRUE 2025/10/08 22:03:16 ONU01/08 NO-DESCRIPTI 1/9 70:b6:4f:9a:c6:b0 Online TRUE TRUE 2025/10/08 20:38:42 ONU01/49 NO-DESCRIPTI 1/10 a2:7e:04:19:39:40 Offline TRUE TRUE 2025/10/08 22:03:25 ONU01/10 NO-DESCRIPTI 1/11 a2:4f:05:32:2f:50 Offline TRUE TRUE 2025/10/08 20:39:45 ONU01/11 NO-DESCRIPTI 1/12 1c:ef:03:e8:ba:7a Online TRUE TRUE 2025/10/08 21:21:10 ONU02/08 NO-DESCRIPTI 1/13 20:57:af:9c:af:18 Online TRUE TRUE 2025/10/08 20:38:50 ONU01/13 NO-DESCRIPTI 1/14 a2:3d:12:21:10:60 Online TRUE TRUE 2025/10/09 11:56:55 ONU01/14 NO-DESCRIPTI 1/15 00:d5:9e:8b:46:d6 Offline TRUE TRUE 2025/10/08 22:52:38 ONU01/15 NO-DESCRIPTI
From this, you can identify which ONUs are offline.
Step 3: Delete the Offline ONU
After identifying the offline ONU, use the following command to delete all offline onu from your Avies OLT:
OLT(config)# interface epon 1 OLT(config-epon-1)# no bind-offline-onu all exit
Example Output:
[2025/10/09 13:53:53] Info: ONU 1/1 a2:3e:06:23:be:c0 ONU removed, Reason:by manual [2025/10/09 13:53:53] Info: ONU 1/6 f8:75:88:20:bf:be ONU removed, Reason:by manual [2025/10/09 13:53:53] Info: ONU 1/10 a2:7e:04:19:39:40 ONU removed, Reason:by manual [2025/10/09 13:53:53] Info: ONU 1/11 a2:4f:05:32:2f:50 ONU removed, Reason:by manual [2025/10/09 13:53:53] Info: ONU 1/15 00:d5:9e:8b:46:d6 ONU removed, Reason:by manual
Step 4: Verify Deletion
To confirm that the ONU has been successfully deleted, run:
OLT(config)# show onu-info all
Check if the deleted ONU no longer appears in the list. If it’s gone, the deletion was successful.
Step 5: Save the Configuration
Always save your configuration to prevent data loss after reboot:
OLT# copy running-config startup-config Configuration saved successfully OLT#
Conclusion
By following this simple CLI guide, you can easily identify and delete offline ONU devices from your Avies OLT. This not only improves the efficiency of your OLT but also keeps your FTTH network clean, optimized, and easy to manage.