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Nways Manager for AIX-LAN Network Manager/I.H.M.P. User's Guide


Configuring Management Parameters for LLC Token-Ring Resources

After installing the LNM OS/2 agent application, you can configure the OS/2 agent (cmol) capability for the network you are managing. To configure the OS/2 agent (cmol) capability to manage your LLC token-ring resources, use SMIT to define values for:

This chapter describes how to carry out these tasks.


Using SMIT to Configure LAN Network Management

The configuration parameters that you define in SMIT are saved in files with an extension of .conf in the /usr/CML/conf/lnmlnmemon directory. These files are read each time LAN Network Manager is started.

If you change any of these parameters, follow these steps to activate your configuration changes:

  1. Stop the background daemons by entering /usr/OV/bin/ovstop from an AIX command line.

  2. Restart the background daemons by entering /usr/OV/bin/ovstart.

If you use SMIT to change other configuration parameters, stop and restart the affected LAN Network Manager daemon to cause the updated parameters to take effect by entering:

cmlstop <daemon_short_name>
cmlstart <daemon_short_name>

For more information on the daemons used by LAN Network Manager applications, see the online book Coupling and Autodiscovery.


Configuring LNM Parameters: Age-out Time, Time-Out Period

To configure or change the LAN Network Manager general parameters:

  1. Ensure you are logged on with root privileges.

  2. If SMIT is not running, enter smit cml from an AIX operating system shell, or select Administer -> Campus Manager SMIT from the NetView for AIX menu bar.

    The SMIT menu is displayed.

  3. Select Configure.

  4. Select IBM LAN general parameters.

    The dialog box for configuring LAN general parameters is displayed.

  5. Enter new values in any of the following fields. To display help information about a parameter, click on ? and point to the field.

    Age-out time
    Number of days that an inactive resource remains in the database before it is deleted.

    Initial time-out
    Number of seconds that a LAN Network Manager application waits before updating its topology displays.

    IBM LAN Root label
    Window title displayed in the title bar of the LAN Network submap.

  6. Press Enter or select OK to activate your changes.

  7. Select Exit SMIT from the Exit pull-down menu to leave the SMIT program.

Configuring OS/2 Agents that Manage LLC Token-Ring Resources

After you have installed the LAN Network Manager component, configure OS/2 agents in your network to communicate with Nways Manager-LAN. Each OS/2 agent program is managed by the OS/2 agent capability and has a configuration file that you can modify using SMIT. With SMIT, you configure the OS/2 agent program by defining the IP address of each agent in your network and specify how you want it to be discovered.

You should also ensure that you have selected the NetView for AIX connection field on the NetView Parameters window in the OS/2 agent program. Refer to the OS/2 agent documentation for more information.

To define or reconfigure an OS/2 agent using SMIT, follow these steps:

  1. Ensure you are logged on with root privileges.

  2. If SMIT is not running, enter smit cml from an AIX operating system shell or select Administer -> Campus Manager SMIT from the NetView for AIX menu bar.

    The SMIT menu is displayed.

  3. Select Configure.

  4. Select Configure OS/2 agent (cmol) capability.

  5. Select Add/Change IBM LNM OS/2 agent.

  6. Enter the IP address of the LNM OS/2 agent and press Enter or select OK. A complete Add/Change IBM LNM OS/2 Agent menu is displayed.

  7. Enter new values for any of the following LNM OS/2 agent parameters. To display help information about a parameter, click on ? and point to the field.

    IP address
    Internet Protocol (IP) address of the agent.

    Port number
    Number of the port through which the agent communicates.

    Ensure that the value you enter in the Port number field matches the value defined for the port number in the CONFIG.SYS file on the OS/2 agent workstation. This value must not be used by any other application operating on the OS/2 agent workstation. If you do not enter a value, the default value of 7605 is used. Record each unique port number in the file /etc/services as LNM_OS2_AGENT nnnn/tcp where nnnn is the port number to be recorded.

    Automatic agent discovery
    If you select Yes, the agent is discovered each time Nways Manager-LAN is started. This is known as persistent discovery.

    If you select No, the agent is not automatically discovered. You can, however, manually configure the agent for temporary discovery. For information about the difference between persistent and temporary discovery, see the section "Methods of Discovery" in the online book Coupling and Autodiscovery.

    Resync interval
    Time period (in days, hours, minutes) used by Nways Manager-LAN to rediscover the agent, resynchronize the segment, and update LAN submaps with new or changed information. Each resynchronziation refreshes LAN submaps with the latest changes made to the network topology (for example, moving, adding, or removing LLC token-ring devices).

    Response time-out
    Time period (in days, hours, minutes) used by Nways Manager-LAN to wait for a response from the agent before issuing an error message.

    Daily resync
    Daily time (hour and minute) used by Nways Manager-LAN to rediscover the agent, resynchronize the segment, and update LAN submaps with new or changed information about resources managed by the agent.

  8. Press Enter or select OK to activate your changes.

  9. Repeat steps 4 through 8 for each OS/2 agent in your network.


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