what is the error mean and how to solve it

After the LMT is connected to the unified gateway, you can view and configure the device in the command tree, and perform alarm management, configuration management, signaling collecting, upgrade, log collection, and offline configuration for the unified gateway.

Before using the LMT, verify the software integrity by verifying the file signature.

To obtain the digital signature verification tool and guide, visit http://e.huawei.com and choose SUPPORT > Technical Support > Tools > Tools software > Enterprises Common > Software digital signature (OpenPGP) validation tool > V100R001C00.

Figure 1 Loading and verifying the software digital certificate 

Logging to the LMT and Adding a Device

This topic describes how to add and log in to an unified gateway through the LMT.

Set the IP address according to actual situations.

1. Double-click the IPT_LMT.exe file in the IPT_LMT folder.

2. Right-click Device Tree and choose Add Device to add an unified gateway, as shown in Figure 2.
   Figure 2 Newly added device 
   
   

   If you want to add an U1911/U1960/U1981 whose IP address type is IPv6, select ipv6 from the IP drop-down list box and enter the IP address.

    NOTE:

   For U1911/U1960/U1980/U1981:

   • In single-network-port mode, network ports 0 or 1 on the SCU/SMCU board can be used for accessing the device.
   • In dual-network-port mode and triple-network port mode, network port 0 on the SCU/SMCU board must be used for accessing the device.
3. Click OK.

Logging In to the Device

1. Right-click a device to be connected in Device Tree, and choose Connect.

   The Connect dialog box is displayed. Set the device connection parameters, as shown in Figure 3.

   Figure 3 Connecting the device 
   
   

    NOTE:

   • The default values of User name, View mode password, Config mode password, are respectively admin, Change_Me, Change_Me. This topic describes how to use the default values to log in to the unified gateway. Change the values of these parameters based on the onsite requirements. To enter the View mode, you do not need to set a value for Config password.
   • The LMT server can connect to the unified gateway in Telnet or Secure Shell (SSH) mode. By default, the Telnet service is disabled because the Telnet protocol is not a secure communications protocol. If you want to connect the LMT server to the unified gateway in Telnet mode, run the config telnet switch on command. To disable the Telnet service, run the config telnet switch off command.
   • To ensure account security, change the password as soon as possible after the first login and use a password with a high complexity. If the password is not changed, the account might be stolen. For details on how to change the account password, see Changing the Login Password.
   • Keep your account password secure after change. If you forget your account password, reset the password. For details, see What Should I Do If I Forget the Login Password.
2. Click OK.
   The command tree configuration page is displayed, as shown in Figure 4.

   Figure 4 Command tree configuration page 
   

   1	Command navigation tree: This is linked with "Command Input" on the lower right comer.
   2	Command output area.
   3	Complete command input area or batch command input area.
   4	Command configuration Area.

3. On the command tree configuration page shown in Figure 4, click Enter View Mode or Enter Config Mode to switch the mode.

Using the Command Tree

You can use the command tree to run one or more commands.

• Running a single command.
  This topic uses the show board slot 0 command as an example.

  • Run a complete command.
    1. Enter show board slot 0 in Complete Command Input Area or Batch Command Input Area, as shown in Figure 5.
       Figure 5 Entering a complete command 
       
    2. Click Execute.
  • Entering the key parameters of the command and entering the parameter values to obtain a complete command.
    1. Enter show board in the Search text box on the Command tab page, as shown in Figure 6.
       Figure 6 Searching for a command 
       
    2. Double-click Show Board.

       The page shown in Figure 5 is displayed.

    3. Set Slot to 0 in Command Configuration Area.
    4. Click Execute.
  • Entering a part of the command, and selecting the complete command from the matching results generated by the predictive command input.
    1. Enter show board in Enter Command, and click Enter.
       Set the parameters according to the data plan, as shown in Figure 7.

       Figure 7 Filling the command 
       
    2. Click Execute.
  • Searching for a command in the command tree.
    1. Choose Device Management > Board Management, and double-click Show Board.
    2. Set Slot to 0 in Command Configuration Area.
    3. Click Execute.
• Running multiple commands in batches
  1. Enter the commands to be run in batches in Complete Command Input Area or Batch Command Input Area.

     Figure 4 shows Complete Command Input Area or Batch Command Input Area.

  2. Click Execute.

 NOTE:

To prevent unauthorized operations, the LMT provides the lock function. You can choose System > Lock to manually lock the operation page, or choose System > Lock Setting and set the automatic lock function. By default, the password for unlocking the LMT operation page is Change_Me. You can change this password as required.

Troubleshooting

If you still fail to use SSH to log in to the device with the correct user name and password, log in to the web management system, choose System > Device Management, and click Reset next to SSH key reset. Then, try SSH login again. To avoid this problem, click Data Save before the device restart.