In this article, the basic operation and configuration of V-SOL GPON OLT will be introduced.

Contents
- GPON OLT Management Modes
- Maintenance Through Console Port
- Maintenance Through Auxiliary Port
- Maintenance Through Uplink Port
- CLI Management (Login)
- CLI Management (Config Mode)
- Management Configuration (Out-band)
- Management Configuration (In-band)
- User Management
- Querying OLT Basic Information
- OLT System Log
- Device Management
- DNS Configuration
- System Time Configuration
- Mirror Configuration
- Login Management
1. GPON OLT Management Modes
There are two management interfaces including GUI mode (WEB/EMS) and CLI mode (Console, Telnet/SSH). The management port includes console(CLI), out-band(GUI/CLI), and in-band(GUI/CLI).
- Console: operate and maintain OLT by commands; get more information that other ports can’t; not convenient for remote management.
- Out-band: operate and maintain OLT by GUI or CLI; provide more reliable maintenance channel, but need separate maintenance channel.
- In-band: operate and maintain OLT by GUI or CLI; provide flexible maintenance once the service channel is faulty.
2. Maintenance Through Console Port
Step 1. Connect a serial cable to the console port
Step 2. Start putty and set serial parameters
Step 3. Log in to the system
Notes:
● If the computer doesn’t have a serial port, a USB-to-serial cable is required.
● We usually use Putty. Secure CRT to open the console port.
● The baud rate of OLT is 115200.
3. Maintenance Through Auxiliary Port
Step 1. Connect a network cable to the aux port.
Step 2. Configure the same subnet IP address for the computer.
Step 3. Access OLT through HTTPS telnet/SSH or SNMP.
Step 4. Log in to the system.
Notes:
● The Default IP address of the aux port is 192.168.8.200.
● OLT uses HTTPS to access web management.
● By default, OLT blocks telnet and SNMP and enables SSH2.
4. Maintenance Through Uplink Port
Step 1. Create VLAN and configure VLAN for the uplink port.
Step 2. Configure the IP address for the VLAN to make it communicate with the upper-layer network.
Step 3. Log in to the system through the uplink port.
Notes:
● OLT uses HTTPS to access web management.
● By default, OLT blocks telnet and SNMP and enables SSH2.
5. CLI Management (Login)
You can use console cable, telnet or SSH to access OLT and open CLI. But telnet is not allowed by default. Login by username and password. You need to log in to the second level by enabling the command.
Notes: Default username and password: admin/Xpon@Olt9417# The password will not display when typing.
6. CLI Management (Config Mode)
Multiple command modes are used to implement configuration and maintenance. The command modes include:
- Common user mode: gpon-olt>
- Privileged mode: gpon-olt#
- Global configuration mode: gpon-olt(config)#
- Interface configuration mode: gpon-olt(config-…)#
- Debug mode: gpon-olt(debug-mode)#
- GPON debug mode: gpon-olt(gpon-debug-mode)#
- Security configuration mode: gpon-olt(security_dos)#
7. Management Configuration (Out-band)
Access OLT Through the Auxiliary Port
Step 1. The Default IP address of the aux port is 192.168.8.200. Configure the same subnet IP address for the computer, such as 192.168.8.10.
Step 2. Open browser, input https://192.168.8.200.
Step 3. OLT uses HTTPS to access web management. The default username and password: admin/Xpon@Olt9417#
Modify the Out-Band Management IP Address
Step 1. On OLT webpage System Configuration→AUX IP, you can modify the out-band management IP address. After modification, you need to use a new IP to access OLT.
Step 2. If you want to access OLT through Layer 3 network (router), you need to configure the gateway on this page.
Step 3. Delete gateway of AUX IP, input 0.0.0.0 and submit.
8. Management Configuration (In-band)
Step 1. Create VLAN, and configure uplink port VLAN(take GE10 as an example).
Step 2. If the uplink port is connected to a switch port in which VLAN mode is tagged you should configure the uplink port with VLAN mode tagged too. Otherwise, the uplink VLAN mode should be untagged mode.
Step 3. If you configured the uplink port VLAN untagged mode, you should configure the PVID of this port.
Step 4. Configure the IP address for the VLAN.
After finishing these configurations, you can access OLT through the uplink port GE10.
If you want to access OLT through the Layer 3 network (router), you need to configure the gateway. The gateway is added on the IP route page. Here you can add the default route. It is a special route whose destination address and mask are all OK. If the destination address of a packet doesn’t match any entry in the route table, OLT will forward the packet according to the default route.
9. User Management
Add User
Step 1. Input username and password in the text box
The username must begin with the letter. The password must be at least 6 characters and must contain at least two types of characters. See the notice on the page.
Step 2. Select the user role
There are two kinds of roles, Admin and Normal. Admin level user has all rights to operate OLT, and Normal level user only has rights to show information and configurations.
Edit User
Step 1. Click the Edit icon of one username in the User Table. Confirm to edit the user on the
popup box.
Step 2. Input a new password in the edit text box.
Step 3. Select the user role that the username belongs to(optional. The role of the default user can be changed.
Step 4. Click the Edit button to complete the password change.
Admin can change all other users’ passwords, but general users can only change their passwords.
Delete User
Step 1. Click the Delete icon of one username in the user table.
Step 2. Confirm to delete the user on the popup box. The default user can’t be deleted.
10. Querying OLT Basic Information
You can query the OLT version and other system information on the home page of OLT:
- It shows the status of PON ports and uplink ports
- It shows the device SN, hardware and software version, MAC address, CPU and memory usage, credit license and so on.
- You can also configure the device name on this page.
11. OLT System Log
The table displays OLT and ONU alarms and OLT system operation logs. You can set the maximum log entry of the table and query logs based on different alarm types.
Alarm configuration: Configure alarm display on the different management interfaces. Configure alarm threshold of OLT and PON ports.
12. Device Management
Firmware Upgrade
In the following situations, you may need to upgrade the firmware:
- The current version is very old.
- In order to get new features or functions.
- In order to fix some bugs.
Upgrade steps:
- Choose the correct firmware file and click the Upgrade button.
- Wait until it shows success and prompts reboot.
- Reboot OLT.
Notice: you should follow the instructions provided in the firmware.
Device Reboot
Reboot OLT without turning the power off and on, follow the instructions provided in the firmware.
Config File Management
Step1. For the security of the configurations, you’d better back it up. Click Download button to back up the configurations to a computer.
Step 2. When need to restore old configurations or the old OLT is replaced by a new one, use the Restore configuration function to quickly configure. Only the config file backed up from the same model can be restored to another.
Step 3. Click the Load button to restore configurations to factory default.
Step 4. Click the Save button to save current configurations to flash memory so that the configurations don’t get lost after OLT reboot or power off.
13. DNS Configuration
- DNS (Domain Name System) server is used to the resolute domain name on the Internet.
- OLT needs a DNS server to resolve the NTP domain name.
- Two DNS servers can be configured in OLT.
14. System Time Configuration
System Date and Time
RTC stands for Real-Time Clock, it provides the clock signal to the system.
System records log with this time. So, exact time can also help us to know what time the operation or alarm occurs.
NTP Configuration
Since there is no battery in OLT, the time will reset to default after the power is turned off. In this case, NTP configuration is necessary.
Step 1. Enable NTP synchronization.
Step 2. Choose the timezone the OLT located.
Step 3. Input the NTP server in the text box. NTP server can be an IP address or a domain name. If the NTP server is a domain name, you need to configure the DNS server.
Step 4. Click the Submit button.
15. Mirror Configuration
- Port mirror is usually used for troubleshooting. Mirror traffic runs from one port to another so that we can capture it by Wireshark.
- OLT supports a single-direction traffic mirror, a bial-direction traffic mirror, and a multiple-source ports mirror.
- OLT supports 4 mirror session.
16. Login Management
Login Access List
For security, we can configure login access rights for telnet, web, SNMP and SSH.
By default, login access is enabled, and telnet. SNMP is blocked.
Source IP and Mask all are O means that all IP addresses match the rules.
Login Service Port
Sometimes, in order to improve security level, we don’t want to use default service ports. We can change the ports of the web, telnet, SSH and SNMP service ports.
Login Timeout
Web access will log out automatically at a specified time without any operation. You can change the expiration time. By default, it’s 5 minutes.
The verification code on the login page is optional.
What else would you like to know about the V-SOL GPON OLT configuration? Do you have any questions? Feel free to contact VSOL Support.