Cisco Prime Collaboration Device Management Guide, 9.0
Polling Devices
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Polling Devices

Table Of Contents

Polling Devices

Configuring Polling Parameters for TelePresence Monitoring Settings

Configuring Polling Parameters for Voice Endpoints

Setting Polling Parameters

Polling SNMP Configuration

Setting Polling Priority

Polling Settings for Parameter Types


Polling Devices


Polling devices at regular intervals helps you detect devices and check the health of devices. You can also poll a device to identify and delete it. When a device is polled, Prime Collaboration receives data on many parameters. The managed network devices are polled periodically to synchronize the device data with the Prime Collaboration database.

You can poll devices to:

Check whether the devices can be reached

Configure device polling devices

Schedule polling of devices

Display a list of devices that are not reachable for a certain period of time

You should be a Network Administrator, or a System Administrator to perform this task in Local

Authentication mode.

Configuring Polling Parameters for TelePresence Monitoring Settings

The Prime Collaboration poller manager supports the following polling intervals for TelePresence Monitoring Settings:

System Status Polling Interval—Prime Collaboration:

Collects CPU and memory utilization, and peripheral status for endpoints and multipoint switches, using SNMP and HTTP (HTTPS) [for Cisco C and Ex series endpoints].

Collects CPU and memory data from call and session controllers, using RTMT.

Collects service status from call and session controllers using the Real-Time Monitoring Tool (RTMT), and from multipoint switches and application managers, using HTTP (HTTPS).

Call Statistics Polling Interval—Prime Collaboration collects calls statistics data, such as latency, jitter, packet loss, resolution, and so forth from endpoints and conferencing devices using SNMP and HTTP (HTTPS), respectively.

This data is polled only when a session is in-progress.

Interface Statistics Polling Interval—Prime Collaboration collects data related to network device interfaces. The data includes interface status, utilization, errors and so on. The Interface profile uses SNMP to poll devices.

This profile is used only when the troubleshooting workflow is triggered either automatically or manually.

Flow Statistics Polling Interval—Prime Collaboration collect data related to packet flow from the network devices, using mediatrace and HTTP. The polling is performed only if the Cisco Mediatrace is enabled on the network devices.

This profile is used only when the troubleshooting workflow is triggered either automatically or manually.

Scheduled Session Polling Interval—Prime Collaboration collects scheduled sessions data from management applications, using HTTP (HTTPS).

Session Polling Interval—Prime Collaboration collects multipoint (ad hoc and static) sessions data from the conferencing devices, using HTTP (HTTPS).

Endpoint Registration Polling Interval—Collects TelePresence and IP Phone registration data from the call and session control devices, using HTTP (RIS is also used for Cisco Unified CM).

Ad hoc Session Polling Interval—Collects point-to-point and multisite sessions data from the call and session control devices. Prime Collaboration uses JTAPI for Cisco Unified CM and HTTP for Cisco VCS.

Reachability—The ICMP ping operation is performed to check whether the managed devices are reachable or not. After three consecutive polling failures, an unreachability notification is generated. An unreachable alarm is triggered for this notification.

The ICMP ping operation performed during the initial discovery, checks the accessibility of a device. The ICMP ping operation performed during polling, checks the reachability of the managed devices. This polling is performed every 2 minutes on all managed devices except for network devices.

You must define the polling interval, based on the frequency and type (ad hoc or scheduled) of the video sessions in your company.


Note Sometimes, there may be an inconsistency in the status of the endpoints and the IP phones in the Endpoint Monitoring page. This is because the endpoints are polled for every 5 minutes (by default) and call and session control devices are polled for every 15 minutes (by default). After the polling is complete, the status for the endpoints and the IP phones are consistent.


The polled data is compared against pre-defined threshold values. If the thresholds have been exceeded, or values have fallen below acceptable levels, Prime Collaboration generates the appropriate events. For more information on threshold settings, see the Cisco Prime Collaboration 9.0 Fault Management Guide.

Configuring Polling Parameters for Voice Endpoints

Configuring polling parameters include:

Setting Polling Parameters

Polling SNMP Configuration

Setting Polling Priority

You can define polling values for groups. Devices can belong to system-defined or user-defined groups. Groups are synchronized from Device Group. Devices can belong to multiple groups, and have specific polling settings. The group with the highest polling priority becomes the overriding group.


Note You cannot create a group in the Polling Parameters page. Groups are synchronized from Device Group. See Device Group Selector for more information.


For example, if a device belongs to Cisco Unified CM and Voice Gateway groups, look at the polling group priority hierarchy. If the Cisco Unified CM polling group has the highest priority, then the device will be polled according to the Cisco Unified CM polling group. See Setting Polling Priority for more information.

You will see the device group selector pane in the polling parameters page. You can select the group you want to update. For information on device group selector, see Device Group Selector.

Prime Collaboration is configured with default settings for polling parameters. You can use the default settings, edit them, and restore them to default settings at any time.

In many cases, it might be acceptable to use the default settings for polling parameters. However, depending on how important a device group is, you can increase or decrease the polling interval to accomplish either of the following objectives:

Minimize the impact on the polled devices

Enhance the resolution of the collected data

In addition, you can enhance the performance and utilization of devices by adjusting thresholds, taking into account the following information:

Location of the devices in the IP fabric

Resource constraints

For information on Threshold Settings, see the Cisco Prime Collaboration 9.0 Fault Management Guide.

Setting Polling Parameters

When you change the polling parameter settings, the changes are applied for the entire group and not just the device. To open the Polling Parameters page, choose Administration > System Setup > Polling & Threshold > UC Polling Settings.

You will see the device group selector from which you can select the group you want to view or edit. For information on how to select device group, see Device Group Selector.

From the Polling Parameters page, you can perform any of the following tasks:

Viewing Polling Parameters

Editing Polling Parameters

Restoring Default Polling Parameters

Viewing Polling Parameters

When you view polling settings for a device group, you can see the devices that are members of the device group, and see the default as well as current values for the polling parameters. Devices that belong to multiple groups use the polling settings of the overriding group.

Interface and port polling is controlled at the device level; in other words, switches have a specific polling setting, and that setting determines when the switch ports are polled.


Step 1 Choose Administration > System Setup > Polling & Threshold> UC Polling Settings.

Step 2 Select a device group for which you can set polling parameters. Generally, this is a device group that does not contain subgroups.

Step 3 Click View. The Polling Parameters report opens in a separate window.

Step 4 When you are done viewing polling parameters, close the window.


Editing Polling Parameters

When you edit Prime Collaboration polling parameters, you edit settings that are associated with device groups, not with individual devices. When you have finished all changes to polling parameters (and thresholds and priorities), apply all changes.


Step 1 Choose Administration > System Setup > Polling & Threshold > UC Polling Settings.

Step 2 Select a device group for which you can set polling parameters.

Generally, this is a device group that does not contain subgroups.

Step 3 Click Edit.

The Polling Parameters: Edit page appears.


Note To enable performance polling for users to see the HighPortUtilization event, select Polling Enabled for Voice Utilization Settings.


Step 4 To edit all parameters, repeat the following steps for each parameter type:

a. Select a parameter type.

b. Change the parameters appropriately for each setting.

You cannot edit some of the fields because they are grayed out.

Step 5 Save the settings; do either of the following:

Click Save;

Your changes are saved in the database.

Or

Click Cancel;

The Polling Parameters: Edit dialog box closes.

Your changes will not go into effect until you have applied them.

Step 6 Click Apply.

This saves the settings, close the Polling Parameters: Edit dialog box, and apply changes to the system.

Step 7 When a confirmation dialog box appears, click Yes.


Restoring Default Polling Parameters

You can restore all parameter settings for a device group to default values using this procedure. If, instead, you want to restore only a few functions or settings, see Polling Settings for Parameter Types.

Before You Begin

To review default polling settings before you apply them, view the Polling Parameter Summary for the device group. See Viewing Polling Parameters. Current settings along with the default settings are displayed.

To restore default polling parameters:


Step 1 Choose Administration > System Setup > Polling & Threshold > UC Polling Settings.

Step 2 Select a device group for which you can restore polling parameters.

Generally, this is a device group that does not contain subgroups.

Step 3 Click Restore Default Settings.

A confirmation dialog box appears.

Step 4 Click Yes.

The settings are stored in the database, but not yet applied to the IP fabric.


View the Overriding Polling Group for a Device

Use the Polling Parameter report or Thresholds report to identify a device's overriding group.


Step 1 Choose Administration > System Setup > Polling & Threshold.

Step 2 To view the overriding polling groups, select UC Polling Settings.

A device can have different overriding polling and threshold groups.

Step 3 Select a device group that the device is a member of and click View.

The appropriate report opens.

Step 4 Locate the device in which you are interested, and look at the Overriding Group column.


Polling SNMP Configuration

If an SNMP query does not respond in time, Prime Collaboration times out. Prime Collaboration retries contacting the device for as many times as you indicate. The timeout period is doubled for every subsequent retry.

For example, if the timeout value is 4 seconds and the retry value is 3 seconds, Prime Collaboration waits 4 seconds before the first retry, 8 seconds before the second retry, and 16 seconds before the third retry.

The SNMP timeout and retry values are global settings. Change these values as follows:


Step 1 Choose Administration > System Setup > Polling & Threshold > UC Polling SNMP Configuration.

Step 2 Select a new SNMP timeout setting. The default is 4 seconds.

Step 3 Select a new Number of Retries setting. The default is 3 retries.

Step 4 Click Apply, and then click Yes to confirm.


Setting Polling Priority

A device group can have different overriding polling groups.

You can set the priority for the Device polling groups

To set priorities:


Step 1 Choose Administration > System Setup > Polling and Threshold  > UC Polling & Threshold Priority Setting.

The Setting Priorities: Queue page appears, displaying the groups in priority order. A device can have different overriding polling and threshold groups.

Step 2 Select the Polling groups — Device Polling Groups radio button for polling settings.

For threshold priority settings, see the Cisco Prime Collaboration 9.0 Fault Management Guide.

Step 3 Rearrange the groups according to your preference (the closer the group is to the top of the list, the higher its priority):

a. Select a group.

b. Move the group up or down using the Up and Down buttons.

Step 4 Click Save.

The changes are now saved in the database.

Step 5 Click Apply. The changes do not take effect until you apply them to Prime Collaboration.


To find the overriding group for a device, you can select any device group to which the device belongs and view a Polling Parameters report.


NoteAfter you adjust polling and threshold settings, you must apply changes to have Prime Collaboration start using your changes. When you save changes, Prime Collaboration sets the polling in the selected group. When you apply changes, Prime Collaboration recalculates group membership, based on group priority and uses the new polling and threshold settings to gather information from the devices.

If you are updating polling parameters in several pages, you need not apply changes every time. You can click "Apply" once, after updating all the pages.


Polling Settings for Parameter Types

Three parameter types are available for polling devices:

Data Settings—Polling

Voice Health Settings—Polling

Voice Utilization Settings—Polling

Data Settings—Polling

Data settings enable you to poll for device reachability, environment, ports and interfaces, and processor and memory utilization.


NotePolling for voice-enabled ports and interfaces is controlled by voice health settings.

Polling is disabled by default for user-defined groups. To enable polling for user defined groups, see Polling Settings for Parameter Types.


Voice Health Settings—Polling

Voice health settings control polling for voice-enabled devices, device pools, ports, interfaces, and Cisco Unified Communications Applications. Data that is collected includes Cisco Unified CM cluster connectivity and processor and memory utilization on Media Convergence Servers (MCS) and on voice gateways.


Note Polling is disabled by default for user-defined groups. To enable polling for user defined groups, see Polling Settings for Parameter Types.


Voice Utilization Settings—Polling

Voice Utilization Settings control performance polling. Performance polling collects utilization and capacity planning data from supported devices.

Performance polling is disabled by default.

When performance polling is enabled, Prime Collaboration collects performance and capacity data that:

Is accessible from monitoring dashboards in the form of performance graphs.

Is stored in data files on disk for further analysis; for information about data files.

Is measured against Voice Utilization Settings thresholds.

When thresholds are violated, Prime Collaboration generates events related to performance and capacity problems in an application, on an interface, or on a device. For example, high utilization of ports, channel, and resources of a device.

For more information, See the Cisco Prime Collaboration 9.0 Fault Management Guide.