Hi,
Manually Setting Telnet/STelnet Parameters
On the NCE, in addition to setting the Telnet/STelnet parameters using a template, you can also manually set the parameters for NEs in batches.
Prerequisites
You are a user with Operator Group authority or higher.
An NE has been created. For details, see Creating NEs.
The related parameters, such as the user name and password, must be set on NE.
Context
Deleting or modifying Telnet/STelnet parameters will interrupt communication between the NCE and NEs. As a result, users cannot remotely log in to or manage the NEs. Exercise caution.
Procedure
Open the Network Management app and choose from the main menu. Then click
In the Device r Management window, select the desired NEs from the navigation tree in the left pane and click .
In the Device net Parameter Management dialog box, set the parameters as required in the Details group box.
Access series NEs do not support the function of setting Enable Privilege.
The login user name and password must be the same as those configured on the NE. To ensure that NCE can manage NEs properly, the login user must have the administrator rights.
When creating a performance monitoring instance that supports Y.1731, you need to set Telnet/STelnet information for this NE on the NCE. Set the Auth.Mode parameter to User Auth because other modes are not supported. Keep the User Name and Password parameters for Telnet and STelnet to be the same as the FTP and SFTP user names and passwords respectively.
When configuring an STelnet parameter template, you must import a private key file for configuring Private Key if Auth. Mode is RSA Auth or RSA&Pwd Auth. If a key generator is used to generate a key pair file and a password phrase has been set for the file, you must enter the password phrase in the Please enter the password phrase area for configuring Private Key. The entered password phrase must be the same as the preset one.
A key pair, including a private key and public key, can be generated by using a key generator PUTTYGEN.EXE. In PuTTY Key Generator, Type of key to generate is set to SSH-2 RSA and Number of bits in a generated key is set to 2048. To ensure security, enter a password phrase during key pair file generation.
A public key file is set to the NE through the NE CLI after being converted by using a key converter sshkey.exe.
To ensure security, you are advised to delete the local private key file after it is imported into the NCE.
Click Apply.
Click Yes when the Risk dialog box is displayed indicating that Telnet/STelnet parameters will be modified and problems (such as NE data synchronization failures) will arise in consequence.
In the Result dialog box, click Close. The modification takes effect automatically.
Click Test.
If the message indicating a successful test is displayed, click OK.
If the message indicating a test failure is displayed, modify the settings of the Telnet/STelnet parameters according to the prompt message.
Optional: Click Export. Then, set Start row, End row, and File name, and click OK to export details about the Telnet/STelnet parameters.
The selected records are saved to an .xls, .xlsx, .txt, .html, or .csv file. The storage location of the exported file depends on the download settings of the browser. If the login user is administrator, the file will be saved to C:\Users\administrator\download by default.
For .txt files, code formats ISO-8859-1 and UTF-8 are supported. For .csv files, only code format UTF-8 is supported. For .html, .xls and .xlsx files, code format is unconfigurable. You are advised to use the default encoding format if the saved file does not need to support multiple languages; otherwise, UTF-8 is recommended.
Click OK. The parameters are set successfully.
Follow-up Procedure
The configured Telnet/STelnet parameters can be deleted if the Telnet/STelnet protocol is not required for remote NE login and management. Perform the following steps to delete configured Telnet/STelnet parameters.
The Telnet/STelnet parameters can be deleted only by NCE users with "maintenance engineer" rights or higher.
In the Device Telnet/STelnet Parameter Information list, select one or more records.
Click Delete Parameter in the lower pane.
When the Risk dialog box is displayed indicating that whether to delete parameter, click the I have read the message and fully understood the operation impacts on services option button and click Yes.
When the Risk dialog box is displayed again indicating that Telnet/STelnet parameters will be modified and problems (such as NE data synchronization failures) will arise in consequence, click the I have read the message and fully understood the operation impacts on services option button and click Yes.
The Secondary Authorization Authentication dialog box will be displayed, and ask the user having the secondary authorization permission to enter its user name and password before the operation proceeds.
In the Result, click Close. The parameters are deleted.
i hope it helpful!
