Using Cisco TN3270 Monitor

The Cisco TN3270 Monitor application is a UNIX-only application that allows you to monitor statistics, get Systems Network Architecture (SNA) related information, and view TN3270 server events. For each instance of the Cisco TN3270 Server running in the specified router, the Cisco TN3270 Monitor establishes a TCP/IP connection to the first Cisco TN3270 Server-configured physical unit (PU) (using the IP address) and begins polling for the tn3270sGlobalTable and tn3270sStatsTable MIB variables. The TCP/IP connection allows the router to send Cisco TN3270 Server events to the Cisco TN3270 Monitor program. You can then view the events in filtered views.

For information on how to configure the Cisco TN3270 Server, see the following URL:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios102/accscg/56868.htm

For information on how to tune the Cisco TN3270 Server, refer to the online help.

This appendix contains the following sections:

Launching the TN3270 Monitor Application from CiscoView

To access a device with TN3270 capabilities from CiscoView, complete the following steps:

Step 1 Go to CiscoView - Main window.

Note For information on device display setup requirements, starting CiscoView, and opening an installed device, refer to Chapter 1, "Introducing CiscoView."

Step 2 Select File>Open Device.

Step 3 Enter the IP address or host name of the router running the TN3270 server in the Host field.

Step 4 Enter the Read community string.

Step 5 Click OK.

The main window for your device appears. For information on functionality, see the online help for this product.

Step 6 Click on the TN3270 icon in the toolbar.

Note A Write community string is not required for the Cisco TN3270 Monitor.

Note For procedures on starting CiscoView, refer to Chapter 1, "Introducing CiscoView," or the CiscoView CD Installation Instructions.

Using the TN3270 Monitor - Global Statistics Window

The TN3270 Monitor - Global Statistics window is the initial window for the TN3270 Monitor program. This window displays transaction counts, response time measurements, and other TN3270 server statistics for the first TN3270 instance running in the router. If more than one TN3270 server is running in the router, the TN3270 Server Instance button can be used to select the desired instance. The statistics are refreshed periodically, determined by the polling period. The polling interval is dynamically configured in the Preferences window.

The File, View, and Options items in the menu bar allow you to access the functions of TN3270 Monitor. These are described in Table D-1 through Table D-3.

Table D-1: TN3270 Monitor - Global Statistics Window File Menu Items
Menu Item Description

Print

Prints the contents of the window

Exit

Exits the program

Table D-2: TN3270 Monitor - Global Statistics Window View Menu Items
Menu Item Description

Events

Displays a list of filters from which to choose. Select a filter, or specify a new one and select New View to display a list of server events that meet the filter criteria. TN3270 server events include session initiation and termination, link related messages, PU and logical unit (LU) error messages, and TN3270 server system messages. TN3270 server events are updated as received from the TN3270 server and displayed in real time in filtered views. All events received from the TN3270 server are saved in a set of rotating log files.

PU List

Lists the PUs associated with the specified instance of TN3270 server. PU and LU information is displayed on the PU Detail and LU Detail screens. This information is not updated until you select Refresh under the View menu option.

Table D-3: TN3270 Monitor - Global Statistics Window Options Menu Items
Menu Item Description

Preferences

Displays default settings used in the monitor and allows users to change settings

Menu Item	Description
Events	Displays a list of filters from which to choose. Select a filter, or specify a new one and select New View to display a list of server events that meet the filter criteria. TN3270 server events include session initiation and termination, link related messages, PU and logical unit (LU) error messages, and TN3270 server system messages. TN3270 server events are updated as received from the TN3270 server and displayed in real time in filtered views. All events received from the TN3270 server are saved in a set of rotating log files.
PU List	Lists the PUs associated with the specified instance of TN3270 server. PU and LU information is displayed on the PU Detail and LU Detail screens. This information is not updated until you select Refresh under the View menu option.

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