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Chapter 24 Using Network Diagnostics

Enabling Network Diagnostics

Starting Network Diagnostics in MS Windows

Starting Network Diagnostics in DOS

Features Specific to Network Diagnostics in DOS

Comparing Traffic for Servers and Clients

Comparing Server Utilization

Comparing Server or Client Disk Information

Viewing Server and Client Configuration Information

Viewing Server and Client Statistics

Testing Server and Client Connections


The Personal NetWare(TM) Network Diagnostics utility allows you to monitor the operation of the network. The information it provides is primarily of interest to users who have a good technical understanding of how networks function. In particular, Network Diagnostics enables you to do the following:

There are DOS and MS Windows versions of Network Diagnostics. The two versions provide similar functionality, but some features are unique to the DOS version. These additional DOS features are described in ``Features Specific to Network Diagnostics in DOS'' on page 24-4.

Enabling Network Diagnostics

By default, network diagnostics are enabled when you install the networking software. To disable or re-enable network diagnostics after installation, do the following:

1. At the system prompt, type

SETUP <Enter>
2. Choose the Networking option.

You can now page through the network configuration screens.

3. Select or deselect the option Load NMR Network Management module, then save the changes and exit SETUP.

SETUP automatically adds (or removes) the command VLM=NMR.VLM to the NET.CFG file on your computer. If the command is added, this VLM(TM) , the Network Management Responder, is loaded automatically when you restart the operating system.

4. Restart the operating system, and answer Y to the prompt

Load Network Software (Y/N)

Starting Network Diagnostics in MS Windows

Network Diagnostics in MS Windows provides a graphical interface to the diagnostics tasks. Information about how to perform these tasks is provided in the online help in Network Diagnostics.

CHECKLIST:
* You must be logged in; see
``Logging In'' on page 21-2.

* You must have enabled Network Diagnostics; see the previous section ``Enabling Network Diagnostics.''

To access Network Diagnostics, do the following:

1. Open the Program Manager ``Personal NetWare'' group.

2. Choose the ``Network Diagnostics'' icon.

The Network Diagnostics window appears.

3. Use the online help within the Network Diagnostics utility for more information.

Starting Network Diagnostics in DOS

Network Diagnostics in DOS provides all the diagnostic features included in the MS Windows version. It also has some additional features, which are described in the next section, ``Features Specific to Network Diagnostics in DOS.''

CHECKLIST:
* You must be logged in; see
``Logging In'' on page 21-2.

* You must have enabled Network Diagnostics; see ``Enabling Network Diagnostics'' on page 24-2.

1. At the system prompt, type

PNWDIAGS <Enter>
or

NET DIAGS <Enter>
The Main Menu appears.

Features Specific to Network Diagnostics in DOS

The DOS version of Network Diagnostics has two options that are not available in the MS Windows version.

Viewing Another Workgroup

You can view and monitor activity in any known workgroup on your network. By selecting a workgroup, you can view statistics and user activity associated with it.

To view another workgroup, do the following:

1. Start Network Diagnostics as described in the section ``Starting Network Diagnostics in DOS'' on page 24-3.

2. Choose Select Data from the Main Menu.

3. Choose Select a Workgroup from the Data Selection Items menu.

A list of available workgroups appears.

4. Choose a new workgroup and press <Enter>.

The new workgroup name is displayed at the top of the screen. All options selected will apply only to that workgroup.

Some workgroups on the network may not immediately appear. To search for a workgroup not currently displayed, use the NET WGFIND command before entering Network Diagnostics in DOS.

Viewing A Network

You can view and monitor activity on a network by selecting it. All known network segments are available for viewing. Each network is identified by a unique hexadecimal number called a network number.

To view another network, do the following:

1. Start Network Diagnostics as described in the section ``Starting Network Diagnostics in DOS'' on page 24-3.

2. Choose Select Data from the Main Menu.

3. Choose Select a Network from the Data Selection Items menu.

A list of available network numbers appears with your current network number highlighted.

4. Choose a new network segment and press <Enter>.

5. To view nodes on the selected network, return to the Main Menu and choose View Configuration.

All network computers (nodes), including clients and servers currently connected to the selected network, are displayed.

Only the node addresses are displayed. You can display the list of server names and login names by using the Associate Network Names option.

Associating Network Names

After node addresses are listed using the Select a Network option, login and server names can be viewed for each node address.

Be aware that, depending on the number of nodes connected to the selected network segment, obtaining the login and server names of each node could be quite time consuming.

To associate network names, do the following:

1. Choose Select Data from the Main Menu.

2. Choose Select a Network from the Data Selection Items menu.

3. Choose a network.

4. Choose Associate Network Names from the Data Selection Items menu.

5. Choose Find Diagnostics User Names from the Network Names menu.

The Diagnostics utility searches the network and compiles server and login names for each node address.

6. To view the names associated with each node, return to the Main Menu and choose View Configuration.

After searching the network, server names, login names, and node addresses are displayed. Diamonds appear next to any associated names obtained from a previously saved network name file.

The names and addresses are saved to a file and may be accessed and updated through the Use Diagnostics Name File option in the Network Names menu.

Refreshing Data

The Refresh the data option refreshes the workgroup or network information since a diagnostic option was selected or since the last refresh.

Refreshed data displays all computers (nodes) that are found in a workgroup or network. It will not display nodes that have logged out.

To refresh data, do the following:

1. Choose Select Data from the Main Menu.

2. Choose Refresh the data from the Data Selection Items menu.

Saving LANalyzer Name Files

You can save files that can be used with Novell's LANalyzer for Windows product. When using LANalyzer for Windows, each node can be viewed by its name, rather than by its node address.

To save the name files, do the following:

1. Start Network Diagnostics as described in the section ``Starting Network Diagnostics in DOS'' on page 24-3.

2. Choose Save LANalyzer Name File.

3. Type a filename and, if desired, a path.

Comparing Traffic for Servers and Clients

Network traffic information can help you determine if a particular computer is overloaded or having problems.

Comparing Traffic in MS Windows

If you use MS Windows, start Network Diagnostics as described in ``Starting Network Diagnostics in MS Windows'' on page 24-2. Refer to ``Graph Node Traffic'' in the online help in Network Diagnostics for information about traffic comparison procedures.

Comparing Traffic in DOS

To compare traffic, do the following:

1. Start Network Diagnostics as described in the section ``Starting Network Diagnostics in DOS'' on page 24-3.

2. Select Compare Data.

The Select Nodes menu appears with the following choices:

3. Select the computers (nodes) you want to view traffic information about: all nodes, servers, or clients.

The Compare Options menu appears.

4. Choose Traffic.

Network traffic information is displayed for the nodes you selected. For help with this screen, press <F1>.

5. Press <ESC> to exit.

Comparing Server Utilization

You can view two different measures of Personal NetWare server utilization.

Server utilization information can help you decide how to allocate current resources and help you plan for distributing future resources.

In addition to these statistics, Network Diagnostics in DOS also displays the following information:

Comparing Server Utilization in MS Windows

If you use MS Windows, start Network Diagnostics as described in ``Starting Network Diagnostics in MS Windows'' on page 24-2. Refer to ``Graph Server Utilization'' in the online help in Network Diagnostics for information about comparing server utilization.

Comparing Server Utilization in DOS

To compare server utilization, do the following:

1. Start Network Diagnostics as described in ``Starting Network Diagnostics in DOS'' on page 24-3.

2. Select Compare Data.

The Select Nodes menu appears with the following choices:

3. Select the computers (nodes) you want to view server utilization information about: all nodes, servers, or clients.

The Compare Options menu appears.

4. Choose Local/Remote Utilization or Server Utilization, depending on the kind of server information you want to view.

Server utilization information for the kind of computers you selected appears. For help with this screen, press <F1>.

5. Press <ESC> to exit.

Comparing Server or Client Disk Information

Disk information can help you determine current resource efficiency and plan for future resources. You can view the information in the following ways:

Comparing Disk Information in MS Windows

If you use MS Windows, start Network Diagnostics as described in ``Starting Network Diagnostics in MS Windows'' on page 24-2. Refer to ``Graph Node Disk Space'' in the online help in Network Diagnostics for more information.

Comparing Disk Information in DOS

To compare disk information, do the following:

1. Start Network Diagnostics as described in the section ``Starting Network Diagnostics in DOS'' on page 24-3.

2. Select Compare Data.

The Select Nodes menu appears with the following choices:

3. Select the computers (nodes) you want to view disk information about: all nodes, servers, or clients.

The Compare Options menu appears.

4. Choose Resource Distribution or Resource Efficiency, depending on the kind of disk information you want.

Resource information for the kinds of computers you selected appears. For help with this screen, press <F1>.

5. Press <ESC> to exit.

Viewing Server and Client Configuration Information

Configuration information provides information about a computer's physical components, such as memory, drives, operating system, and network cards.

Configuration information regarding software components such as cache and server is also included.

Viewing Configuration Information in MS Windows

If you use MS Windows, start Network Diagnostics as described in ``Starting Network Diagnostics in MS Windows'' on page 24-2. Refer to ``View Node Statistics and Configuration'' in the online help in Network Diagnostics for more information.

Viewing Configuration Information in DOS

To view the configuration information, do the following:

1. Start Network Diagnostics as described in the section ``Starting Network Diagnostics in DOS'' on page 24-3.

2. Select View Configuration.

The Select Nodes menu appears with the following choices:

3. Select the computers (nodes) you want to view configuration information about: all nodes, servers, or clients.

If you choose All Nodes, all nodes are listed by either server name (if server software is running) or user login name (if server software is not loaded but the user is logged in).

If you choose Server, all server names and server node addresses are listed.

If you choose Client, all user login names and node addresses are listed.

4. Select the specific computer (node) you want to view configuration information about.

Configuration information for the computer you selected appears. For help with this screen, press <F1>.

5. Press <ESC> to exit.

Viewing Server and Client Statistics

Server and client statistics provide information about the networking software on a computer, such as media frame type, network packet requests, error counts, and server and workgroup names.

Viewing Statistics in MS Windows

If you use MS Windows, start Network Diagnostics as described in ``Starting Network Diagnostics in MS Windows'' on page 24-2. Refer to ``View Node Statistics and Configuration'' in the online help in Network Diagnostics for information about how to view statistics.

Viewing Statistics in DOS

To view statistics, do the following:

1. Start Network Diagnostics as described in the section ``Starting Network Diagnostics in DOS'' on page 24-3.

2. Select View Statistics.

The Select Nodes menu appears with the following choices:

3. Select the kinds of computers you want to view statistics for: all nodes, servers, or clients.

If you choose All Nodes, all computers are listed by either server name (if server software is running) or user login name (if server software is not loaded but the user is logged in).

If you choose Server, all server names and addresses are listed.

If you choose Client, all user login names and node addresses are listed.

4. Select the specific computer (node) you want to view statistics for.

Statistical information for the computer you selected appears. For help with this screen, press <F1>.

5. Press <ESC> to exit.

Testing Server and Client Connections

You can test connections in the following ways:

Testing Connections in MS Windows

If you use MS Windows, start Network Diagnostics as described in ``Starting Network Diagnostics in MS Windows'' on page 24-2. Refer to ``Test Workgroup Connections'' in the online help in Network Diagnostics for information about how to test connections.

Testing Connections in DOS

To test connections, do the following:

1. Start Network Diagnostics as described in the section ``Starting Network Diagnostics in DOS'' on page 24-3.

2. Choose Test Connections.

The Connection Tests menu appears, listing the following available tests:

3. Select Point to point test or All points test, depending on what connections you want to test.

For help with the results of either test, press <F1>.

4. Press <ESC> to exit.


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