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OLT Reset to Factory Defaults

The OLT supports a mechanism for setting the OLT to factory defaults when no CLI logins are known.  This procedure is only necessary if the OLT is no longer accessible from the EMS and no passwords on the OLT are known.  The following procedure is used to enable the reset to factory default behavior.    This procedure requires physical access to the device as it is only accessible via the serial port.  It also requires removing all lasers and line cards.  Access to the reset is logged in syslog and requires removing all access to the OLT.  If the OLT is accessible from the EMS, all CLI passwords can be reset by an EMS administrator, and you do not need to execute this procedure.

To reset the ESU to factory default, the user will need to complete the following steps:

1. Disconnect all optical fiber connections and remove all Laser modules.   Remove all cards within the chassis except the ESU if the OLT is chassis based (OLT6, 1135, 1150).

2. Connect a laptop to the serial port of the ESU.
   • Go to Attaching to Serial Port for the procedure.
3. Physically force a system reboot by pressing the reset button labeled Reset or RST on the front panel.  The reset switch pushbutton is accessible through a small hole on the front panel.
4. After the reboot the following prompt is displayed.

   ############################### # # # System Ready # # # # YOU MAY LOGIN. # # # ###############################

Login to OLT

When an OLT is without SFP modules and optical cable connections, the local craft interface account (craft/adsl2+) is enabled on the serial interface only. This mode is used to erase all the data on a previously used OLT when the previous local user accounts/passwords are not necessarily known. 

1. To access the OLT, input craft and press Enter.     

   Login as: craft <enter> Keyboard-interactive authentication prompts from server: Password for (craft): _

2. The following dialog is displayed asking for a password. Input the password adsl2+ and press Enter.  

   Keyboard-interactive authentication prompts from server: Password: adsl2+ <enter> End of keyboard-interactive prompts from server Last login: Thu Aug 3 16:30:25 2023 ESUx> _

Reset OLT Database

• Command - erasedb

1. At the ESUx> command line, input erasedb, and press Enter. The following warnings and prompt are displayed:

   ESUx> erasedb <enter> ERASEDB will ERASE all data in the NE database and return it to initial factory settings. ERASEDB will be SERVICE AFFECTING to ALL LINES within the NE. NE needs to be DELETED and RE-ADDED from EMS. Do you also wish to erase the User Database? (Y/N) [N]:_

   Caution: Entering Y (Yes) to this prompt erases the User Database, resetting the factory default user accounts and passwords to (admin/tellabs and craft/adsl2+).

• Answer yes to erase the User Database.

2. The following prompt is displayed:

   Do you also wish to erase the SSL certificates? (Y/N) [N]: __

   Caution: Entering Y (Yes) to this prompt erases all Secure Socket Layer (SSL) certificates

• If you want to erase the certificates, answer Y.
• If N, do not erase the delete, the device, and anchor certificates.

3. The following prompt is displayed:

   Do you also wish to erase the TurNup Settings? (Y/N) [N]: _

   Caution: Entering Y (Yes) at this prompt erases the ESU TurNup settings. When the ESU TurNup settings are erased, the ESU must be reconfigured by logging on at the ESU serial port (see TurNup (tn)) and re-entering all of the basic TurNup parameters.

• If Y, erase the TurNup settings.
• If N, do not erase the TurNup setting.

4. The following prompt is displayed:

   Are you sure you wish to continue? (Y/N) [N]: _

   Caution: Entering Y (Yes) at this prompt erases the Provisioning Database. To recover the NE after erasing the Provisioning Database, the NE can be recovered only by performing a restore of the database to this NE or by deleting and re-adding the NE (see the Tellabs 1100 Series Optical LAN Managing the PON User’s Guide).

• If you answer Y(es), the system will erase the Provisioning Database.
• If you answer N(o), the system will not erase the Provisioning Database.

5. Input Y, and press Enter. If Y was entered for any of the preceding prompts, the following warning is displayed:

   Are you certain you wish to continue? (Y/N) [N]:_

• If N was entered for ALL of the preceding prompts, the erasedb command exits and a ESUx>  prompt is displayed.