Monitoring SNA Switch Resources

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SNASw monitoring is disabled by default in ISM setup when you first initialize ISM.

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You must enable the ISM Resource Management application before you can monitor SNASw.

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The options on the ISM Resource Management Setup panel apply to all routers managed by ISM.

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If you want to change history database IDs, you must do so after you install ISM, but before you initialize ISM for the first time. You can access ISM setup even when the ISMMGR task is not running.

To enable ISM to monitor SNA Switching, perform the steps described in the following sections:

Enabling ISM to Monitor SNA Switch

Step 2

Press Enter to display the ISM Resource Management Setup panel ( Figure 9-3).

Step 3

Beside the SNA Switch Monitor option, type Y in the Update column. Yes appears beside the SNA Switch Monitor option. When you save the setup, the following line is added to the ISM main menu:

Step 4

To enable global SNA Switch configuration, type Y in the setup field of the SNA Switch Monitor line and press Enter. The SNA Switch Monitor Setup/Status panel ( Figure 9-4) is displayed.

The following table describes the fields contained in the SNA Switch Monitor Setup/Status panel:


Field	Description
SNASw Autotask	The name of the NetView autotask that is used to monitor SNA Switch. The default name is SNASWMON. It is recommended that this name not be changed.
SNASw Archive Data Base	Accept the default value of W unless you want to use a different VSAM data base.
SNASw Archive Data Set	The data set name of the VSAM data base to use for SNA Switch archiving. The data set can also be allocated to the NetView procedure JCL.
SNASw Archive Keep Count	Indicates the archive keep count used by the SNASw history key. The default value is 99. If you do not use the default value, you must delete the existing history records before ISM uses the new value.
SNASw SMF Logging	Indicates whether SMF recording is enabled. The default value is YES.
SNASw Archive Logging	Indicates whether ISM is to archive the data that is collects. The default value is YES.
SNASw Monitor Mode	SNA indicates that the service point on the router will be used to monitor SNA Switch. This is the only valid value.
SNASw Link Monitoring	Indicates whether ISM should monitor the status of SNA Switch defined links. The default value is YES.

Step 5

Press PF4 to save your changes. If you have already initialized ISM, the changes are effective immediately.

Monitoring SNA Switching Using the Standard Interface

This section describes how to monitor the status of SNA Switch using the standard interface. It describes the following tasks:

Monitoring Status of the SNA Switch

You can monitor the status of SNA Switch from the ISM Status Summary panel or from the ISM main menu panel. The following steps show you how to access SNA Switch Node Status from the ISM Status Summary panel:

Step 1

On the ISM Status Summary panel ( Figure 9-5), position the cursor in the Total column beside the SNASw option and press Enter.


Field	Description
Node	The SNASw control point name configured.
Status	Current SNASw status.
Router	The router name with which the SNASw server is associated.
Status	Current router status
Hostname	The hostname configured on the router.
Node Problems	Displays the issues that cause the SNASw status to be PERF. The possible values are LINK, PORT, and PU.

Selecting Options for the SNASw Server

Step 1

To select options for a SNASw server, position the cursor on the row with the selected SNASw and press Enter. The ISM SNASW Operation Options panel ( Figure 9-7) is displayed, showing the SNASw status and management options available.

Step 2

To issue router show commands for SNASw, place the cursor on Show SNASW Command Menu and press Enter. The SNASW Show Commands panel ( Figure 9-8) is displayed.

Step 3

Enter a number in the Action field and press Enter. Figure 9-9 shows an example of the panel that is displayed after 1 is entered in the Action field.

Displaying Internal Variables for Monitoring SNASw

To display the internal variables used by ISM to monitor SNASw, select the Display SNASW Variables option on the ISM SNASW Operation Options Panel ( Figure 9-7) by placing the cursor on it and pressing Enter. Figure 9-10 and Figure 9-11 show the resulting output.

Displaying SNASw Historical Performance Data

To display SNASw historical performance data, select Performance option on the ISM SNASW Operation Options Panel ( Figure 9-7) by placing the cursor on it and pressing Enter. Figure 9-12 shows sample SNASw performance statistics.


Field	Description
Date	Date the statistics were archived.
Time	Time the statistics were archived.
SNASw CPU Utilization 5 Sec	The percentage of the router CPU capacity used by SNASw over the last 5 seconds.
SNASw CPU Utilization 1 Min	The percentage of the router CPU capacity used by SNASw over the last 1 minute.
SNASw CPU Utilization 5 Min	The percentage of the router CPU capacity used by SNASw over the last 5 minutes.
SNASw Memory Holding	The amount of router memory in use by the SNASw processes on the router.
Total Router % Free	The percentage of memory on the router that is not in use.

To display the output from a show process cpu command on the router, press PF10. To display the output from a show process mem command on the router, press PF11. The output from these commands is displayed on the Router Command Interface panel.

Performing Management Operations

To perform management operations on the router, select the Router Options Menu by placing the cursor on it on the ISM SNASW Operation Options Panel ( Figure 9-7) and pressing Enter. Figure 9-13shows the Router Options Menu.

Displaying VTAM Status

To display the VTAM status for the SNASw Control Point Name, select VTAM Display of Node on the ISM SNASW Operation Options Panel ( Figure 9-7) by placing the cursor on it and pressing Enter. Figure 9-14 shows a sample display of a SNASw CPNAME.

To perform administrative tasks, select the Administration option on the ISM SNASW Operation Options Panel ( Figure 9-7). (This option is displayed only if you have the authority to change the management rules for monitoring routers.) The ISM SNA Switch Node Administration panel ( Figure 9-15) is displayed.

ISM SNA Switch Node Administration

This section describes some ISM default behaviors and tasks you can perform using the ISM SNA Switch Node Administration panel to override those defaults and to perform other ISM administration tasks.

ISM Default Behaviors

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By default, ISM writes the statistics that it collects for SNA Switch to a VSAM data base. By default, ISM uses data base W.

ISM SNA Switch Administration Tasks

From the ISM SNA Switch Node Administration panel, you can perform the following tasks to modify or override ISM default behaviors described in ISM Default Behaviors:

To prevent ISM from monitoring the status of a SNA Switch server and collecting statistics, enter N in the Monitor Resource field.

To prevent ISM from collecting statistics for this SNA Switch server, enter N in the Collect Statistics field.

To suppress the writing of statistics to VSAM for this SNA Switch server, enter an N in the Archive Statistics field.

To suppress the writing of statistics to SMF for this SNA Switch server, enter an N in the Write SMF Records field.

If SNA Switch data archiving is enabled, you can remove history records from the VSAM database for a specific router. To do so, enter YES in the Reset field and press PF4.

Saving Your Administrative Changes

Once you have completed any changes, press Enter to allow ISM to validate your updates. Then enter a 1, 2, or 3 for the Change Type to add, update, or delete a SNASw server respectively. Also enter a 1, 2, or 3 for the Action Type to indicate when the update should be effective.

To display the internal SNASw variables for this SNA Switch server, press PF9. SNASW Node Performance History Panel shows and example of the ISM SNA Switch Node Administration panel that is displayed.

To have ISM check the router in the ISM Router Name field for a SNASw server, press PF10.

Refreshing Status and Collecting Statistics

To refresh the status of SNA Switch and to collect statistics, place the cursor on Reset/Collect Statistics on the ISM SNASW Operation Options Panel ( Figure 9-7) and press Enter.

Managing the SNA Switch Links on the Router

To display the SNA Switch links on the router and their status, position the cursor on List Links on the ISM SNASW Operation Options Panel (Figure 9-8) and press Enter. Figure 9-16 shows an example of the Link / CPnode Status panel that is displayed.


Field	Description
Link	The name of the SNASw link.
Status	The status of the link.
Router	The router control point name of the router that the SNA Switch server is on.
Adjacent CP	The SNA Control Point Name of the server at the remote side of the SNASw link.
Available Since	The amount of time since this link was last activated. For an INACTIVE link, it displays how long the link was up.

Removing and SNA Switch Link

To remove an SNA Switch link from ISM, for example, if a link is no longer configured on the router, place the cursor on the line with the link and press PF4. The definition of the link and its archived statistics will be removed from ISM and the VSAM database.

Display the Status of a Link

To display details of a SNA Switch link, place the cursor on the link and press Enter. ISM SNASW Link Options Menu Panel shows an example of the ISM SNASW Link Options Menu panel that is displayed.

Displaying Details about the Link

To display details about the link, place the cursor on Show Link field and press Enter. The Router Command Interface panel is displayed with the results of a show snasw link detail name router command. Router Command Interface Panel with Show SNASW Link Detail Name Output shows an example of the information displayed.

Figure 9-18 Router Command Interface Panel with Show SNASW Link Detail Name Output

Displaying ISM Internal Variables for the Link

To display the ISM internal variables for the link, place the cursor on the Display Link Variables field on the ISM SNASW Link Options Menu Panel ( Figure 9-19) and press Enter. Figure 9-20 shows an example of the ISM SNASW Operation Options panel that is displayed.

Displaying History Data for the Link

To display history data for this SNASw link, place the cursor on the History field on the ISM SNASW Link Options Menu Panel ( Figure 9-17) and press Enter. Figure 9-20 shows an example of the Statistics For Router.linkname panel that is displayed.

There are more fields available than will fit on one display panel. You can press PF11 to display the fields to the right. Figure 9-21 and Figure 9-22 show the other 2 panels that are available. To display the columns to the left, press PF10. Use PF8 and PF7 to scroll the display down and up.


Field	Description
Date	Date that the statistics were archived.
Time	Time that the statistics were archived.
Link	The name of the SNASw link.
Data Bytes Sent	Data bytes sent from the SNA Switch server.
Data Bytes Received	Data bytes received by the SNA Switch server.
Data Frames Sent	Data frames sent from SNA Switch server.
Data Frames Received	Data frames received by the SNA Switch server.
XID Bytes Sent	Bytes sent from the SNA Switch server while sending XIDs.
XID Bytes Received	Bytes received by the SNA Switch server while receiving XIDs.
XID Frames Sent	Number of XID frames sent by the SNA Switch server.
XID Frames Received	Number of XID frames received by the SNA Switch server.
Session Control Frames Sent	Number of session control frames sent by the SNA Switch server.
Session Control Frames Received	Number of session control frames received by the SNA Switch server.
Number of XID Exchanges Successful	Number of XID negotiation exchanges that were successful in bringing up the link.
Number of XID Exchanges Unsuccessful	Number of XID negotiation exchanges that were not successful in bringing up the link.

Displaying the Physical Units

To display the Physical Units, PUs, connected though the DLUR function of SNA Switch, place the cursor on the List PUs selection on the ISM SNASW Operation Options Panel ( Figure 9-7) and press Enter. Figure 9-23 shows an example of the SNA Switch Downstream PU Status panel.


Field	Description
PU Name	The name of the Physical Unit
IDNUM IDBLK	The station identification (IDBLK/IDNUM) for the PU.
Status	The status of the PU.
DLUS Name	The name of the CP providing DLUS services for this PU.

Displaying Details for a PU

To display details for a PU, place the cursor on the line containing the PU and press Enter. Figure 9-24 shows an example of the SNA Switch PU Details for PUname panel that is displayed.


Field	Description
PU Name	The name of the Physical Unit.
CP Name	The Control Point name associated with the PU.
DLUS Name	The name of the Network Node providing DLUS services for this PU.
Link Name	The name of the SNASw downstream link associated with this PU and the status of the link.
Port Name	The name of the SNASw port associated with this PU and the status of the port.
Interface	The router interface associated with the SNASw port.
DLC Type	The Data Link Control type associated with the port.
PU MAC:SAP	The Media Access Control address and Service Access Point number associated with the PU.
Port MAC:SAP	The Media Access Control address and Service Access Point number associated with the SNASw port.
RIF	The Routing Information Field.
Maximum Send BTU	The largest Basic Transmission Unit that may be sent.
Uptime	Time period since the PU became active.
Frames Sent	Frames sent from SNASw to the PU.
Frames Received	Frames received by SNASw from the PU.
Bytes Sent	Bytes sent from SNASw to the PU.
Bytes Received	Bytes received by SNASw from the PU.

Collecting Statistics for a PU

To display details about the PU, place the cursor on the PU Name line on the SNA Switch PU Details for PUname Panel ( Figure 9-24) and press Enter. The Router Command Interface Panel is displayed with the results of the show snasw link detail command. Figure 9-25 Shows an example of the panel.

Displaying VTAM Status for a PU

To display the VTAM status of the CPNAME, place the cursor on the CP Name field on the SNA Switch PU Details for PUname Panel Figure 9-24) and press Enter. Figure 9-26 shows an example of the panel that is displayed.

To display the VTAM status of the DLUS, place the cursor on the DLUS Name field on the SNA Switch PU Details for PUname Panel ( Figure 9-24) and press Enter. Figure 9-27 shows an example of the panel that is displayed.

Displaying Details about the SNASw Link

To display details about the SNASw link, place the cursor on the Link Name line on the SNA Switch PU Details for PUname Panel ( Figure 9-24) and press Enter. The Router Command Interface Panel is displayed with the results of the show snasw link detail command. Figure 9-28 shows an example of the panel.

Displaying Details about the SNASw Port

To display details about the SNASw port, place the cursor on the Port Name line on the SNA Switch PU Details for PUname Panel ( Figure 9-24) and press Enter. The Router Command Interface Panel is displayed with the results of the show snasw port detail command. Figure 9-29 shows an example of the panel.

Displaying Details about the Router Interface

To display details about the router interface that supports the SNASw port, place the cursor on the Interface line on the SNA Switch PU Details for PUname Panel ( Figure 9-24) and press Enter. The Router Command Interface Panel is displayed with the results of the show interface command. Figure 9-30 shows an example of the panel.

Monitoring SNA Switching Operations Using the Standard Interface

You can monitor SNA Switch server operations from the ISM main menu ( Figure 9-1). This section describes the following tasks:

Step 1

Step 1 Position the cursor on the SNASW line and press Enter. The SNA Switch Monitoring Operations panel ( Figure 9-31) is displayed.


Option	Description
LIST:Filters:NODE	Select this option and enter a SNA Switch Control Point name to list SNA Switch servers by CP name. If you do not enter a CP name, all SNASw servers are listed.
LIST:Filters:Status	Select this option and select a status to list SNA Switch servers by their current status. If you do not enter a status, all SNASw servers are listed.
Links:By Router	Select this option and enter a router name to list SNA Switch links by router name. If you do not enter a router name, all SNASw links are listed.
Links:By adjacent CP name	Select this option and enter an adjacent Control Point name to list SNA Switch links by adjacent CP name. If you do not enter a CP name, all SNASw links are displayed.
Links:By Network Name	Select this option and enter an adjacent Control Point name and a Network Name to list SNA Switch links by adjacent CP name and Network Name.
PUS:By Router	Select this option and enter a router name to list SNA Switch Physical Units by router name. You must enter a router name.
PUS:By adjacent CP name	Select this option and enter a SNA Switch Control Point name to list the SNASw Physical Units by CP name. You must enter a CP name.

Displaying Information about a Node

Position the cursor on the Node or Router to display the ISM SNASW Operation Options panel ( Figure 9-7) to display details about the SNA Switch server.

Position the cursor on one of the fields under Node Problem and press Enter to display the Router Command Interface panel with details about the problem ( Figure 9-28 or Figure 9-29).

Displaying Information about SNA Switch Links

To display SNA Switch links, use the Links By Router, Links By adjacent CP name, or Links By Network Name options on the SNA Switch Monitoring Operations Panel ( Figure 9-31). Figure 9-33 shows an example of the Link / CPnode Status panel that is displayed.


Field	Description
Link	The name of the SNA Switch Link.
Status	The status of the link as reported by SNASw.
Router	The router control point name for the SNA Switch server.
Adjacent CP	The Control Point name that the SNASw link connects to. NONE.NONE is displayed if the CP name is not known, for example if the link is not active.
Available Since	Time that the link has been in the current state.

To display details about a link, place the cursor on the line and press Enter. The ISM SNASW Link Options Menu Panel ( Figure 9-17) is displayed.

Displaying Physical Units Served by SNA Switch

To display Physical Units, PUs, served by SNA Switch, use the PUS By Router or PUS by adjacent CP name options on the SNA Switch Monitoring Operations Panel (Figure 9-32). Either the SNA Switch PU List Filtering panel (Figure 9-35) or the SNA Switch Downstream PU Status panel () is displayed. The SNA Switch PU List Filtering panel is displayed if there are more PUs than will display on one panel, ( Figure 9-17).

If you specify a filter, only those PUs whose names contain the character string are displayed. For example, if you enter ABC, PUs name ABC, QABC, and ZABC9 would be displayed. If you do not enter a filter, all PUs are displayed. Figure 9-35 shows an example of the SNA Switch Downstream PU Status panel that is displayed.

To display details about a PU, place the cursor on the line containing the PU and press Enter. The SNA Switch PU Details for PUname Panel ( Figure 9-24) is displayed. To filter the list of PUs, press PF11 and the SNA Switch PU List Filtering Panel ( Figure 9-34) is displayed. To update the list of PUs and their status, press PF12

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