Access QoS Details

This topic includes the following sections:

• View QoS Interface Details
• View QoS Policy Details
• View QoS Actions Details
• Identify QoS Interfaces with Threshold Exceptions
• Identify the QoS Actions Threshold Exceptions Inventory View

NNM iSPI Performance for QA enables you to monitor Quality of Service (QoS) managed network elements available in your NNMi environment. Using NNM iSPI Performance for QA, you can monitor the health and performance of QoS managed interfaces, policies and classes. The QoS related views enable you to:

• Discover and list the QoS interfaces available in the network, and the QoS policies and actions applied on them.
• Discover and list the QoS policies configured in the network, along with the mapping between these policies, classes and QoS interfaces.
• Monitor the threshold state and raise incidents for the breached thresholds.

NNMi supports Cisco CBQoS interfaces and nodes. NNMi uses the CISCO-CLASS-BASED-QOS-MIB to collect the CBQoS performance data.

View QoS Interface Details

The QoS Interfaces inventory view enables you to view the list of discovered interfaces for which the QoS Policies are configured. The traffic can be ingress or egress for an interface.

To launch the QoS Interfaces Inventory view:

1. Log on to NNMi console using your user name and password.
2. Click Quality Assurance in the Workspaces panel. The Quality Assurance tab expands.
3. Click QoS Interfaces. The QoS-enabled interfaces that are discovered in your network appear along with some key attributes in the content pane. By default, this information is refreshed every 300 seconds, or 5 minutes.

To view the Interface Inventory for a selected interface:

1. Select an interface in the QoS Interfaces Inventory view and click Open. The Interface form appears.
2. In the QoS Interface form, click Lookup that is next to the Interface Name field to open the Interface form for the selected interface.

You can open the QoS Interfaces Inventory view using the Nodes Inventory view. To open the QoS Interface Inventory view:

1. Select Inventory in the Workspaces panel.
2. Select Nodes.
3. Select a node and click Open.
4. In the Node form, select QoS Interfaces tab.
5. Select a QoS interface and click Open to open the QoS Interfaces Inventory view.

Key Attributes of the QoS Interfaces Inventory View

The QoS Interfaces Inventory view displays the following key attributes:

Attribute Name	Description
Interface Name	The name of the interface.
Hosted on Node	The name of the node on which the interface resides.
In Policy	The name of the In policy associated with the interface. This attribute displays only the parent policy name.
Out Policy	The name of the Out policy associated with the interface. This attribute displays only the parent policy name.
Applied On	The interface on which the policy is applied. Possible values are: Control Plane Interface Sub Interface (Only for Juniper devices)
Tenant	Specifies the NNMi tenant selected for the interface.
Management Server	Specifies whether the NNMi management server is local or not. The name of the Regional Manager is displayed if the NNMi management server is not local.
Management Mode	Specifies whether the source node is managed or not. Possible states are: Managed: Indicates that the node is managed. Not Managed: Indicates that the node is not managed on purpose. Out of Service: Indicates that a node is unavailable because it is out of service.

If there are large number of QoS interfaces, you can filter the interfaces based on the various QA groups. As you type, the auto-complete feature lists the matching QA Groups. You can select a QA Group name from the list.

You can filter the interfaces listed in this view based on all columns of this view. However, make sure that you apply filter on either the In Policy or the Out Policy column. If you apply filter on both the columns, then the NNM iSPI Performance for QA discards both the filters and applies a filter that you may have configured for the other columns.

If you apply the filter 'Not Equal To This Value' on either the In Policy or the Out Policy columns, then theNNM iSPI Performance for QA filters out the following interfaces:

• Interfaces whose in policy or out policy names do not match the filter value.
• Interfaces whose in policy or out policy values are NULL.

In Policy

The In Policy tab displays information about the policies applied on the incoming traffic of the selected interface. It displays the policy information for the parent policy as well as the child policy.

Attributes: In Policy Details Tab

Attribute	Description
Action	The name of a QoS action. The QoS action can be one of the following: Queuing Policing Shaping Packet Marking RED
Traffic Class Name	Name of a Traffic Class mapped to the policy. Click Lookup next to the In Policy and the Out Policy fields to view information on the policies associated with the traffic class. For more information about QoS class map for a selected traffic class, see  .

Out Policy

The Out Policy tab displays information about the policies applied on the outgoing traffic of the selected interface.

The Out Policy tab displays the policy information for the parent policy as well as the child policy.

Attributes: Out Policy Details Tab

Attribute	Description
Action	The name of a QoS action. The QoS action can be one of the following: Queuing Policing Shaping Packet Marking RED
Traffic Class Name	Name of a Traffic Class mapped to the policy. Click Lookup that is next to In Policy and the Out Policy fields to view information on the policies associated with the traffic class. To view the QoS class map details for the selected traffic class, see  .

Classifiers

The Classifier tab displays information about the classifier applied on the selected interface.

Attributes: Classifiers Tab

Attribute	Description
Name	The name of the classifier applied on the interface.

This tab appears only when the classifier is applied on the selected interface of the Juniper device.

Queue Association

The Queue Association tab displays information about the traffic (forwarding) class name and the associated queue number on the selected interface. A queue number can be associated to one or more traffic classes.

Attributes: Queue Association Tab

Attribute	Description
Traffic Class Name	The name of the traffic class.
Queue Number	The queue number to which the traffic class on the selected interface is associated.

This tab appears only when an interface on the Juniper node is selected.

Threshold State

The Threshold State tab displays information about the discovered threshold states for the selected interface.

It displays the threshold states for the parent policy as well as the child policy.

The threshold defined on a policy is applied to all the classes configured for the policy. Even if you do not configure any action for a class of a policy, but configure a threshold for the policy, NNM iSPI Performance for QA applies the threshold on every class and displays them in the Threshold State tab. For example, if you have not defined an action for the Class-Default for a policy, but configured a threshold on the policy, NNM iSPI Performance for QA displays Class-Default in the Threshold State tab.

Attributes: Threshold State Tab

Attribute	Description
State	Threshold state for the QoS elements. Can be one of the following values: High: Specifies that the metric value for the QoS policy crossed the configured threshold value. Nominal: Specifies that the metric value for the QoS policy is within the configured threshold value. Not Defined: Specifies that the threshold was configured, but NNM iSPI Performance for QA did not poll the device.
Metric	Name of the metric that has crossed the threshold state for the configured QoS interface.
Direction	Indicates whether the threshold was applied on the incoming or outgoing traffic for the selected interface.
Traffic Class Name	Displays the name of a Traffic Class mapped to the policy. Click Lookup next to the In Policy and the Out Policy fields to view information on the policies associated with the traffic class. To view the QoS Class Details for the selected traffic class, follow these steps: Click Lookup next to the In Policy or Out Policy fields. Select Open to open the QoS Policy form. Select Traffic Classes tab, select a traffic class and click Open to open the QoS Class Map form. This form displays the action definitions associated with a class. For example, if the queuing action is configured for Class A, the QoS Class Map form displays a tab for queuing action. The tab displays the properties and the value for each property. The values for these properties are measured in bits per second (bps). This form does not display the details for nested classes.
Type	Type of the threshold set for the metric. Can be of the following types: Count: NNM iSPI Performance for QA raises an incident only if the threshold for the configured QoS policy is crossed for a pre-specified number of times consecutively. Time: NNM iSPI Performance for QA raises an incident only if the metric value is beyond the threshold value for a pre-specified time period.
High Value	Threshold value that the administrator has configured for the policy. NNM iSPI Performance for QA raises an incident when the metric value crosses the configured threshold value and sets the threshold state to High.
High Value Rearm	Rearm value that the administrator has configured for the policy. NNM iSPI Performance for QA raises an incident when the metric value crosses the configured threshold value. When the metric value reaches the rearm value, NNM iSPI Performance for QA clears the incident and sets the threshold state to Nominal.

Each time the NNM iSPI Performance for QA starts running on the Global Manager, the Global Manager pulls the changed threshold states from all Regional Managers since the last run of NNM iSPI Performance for QA. The Global Manager then raises incidents for the overall health of the configured QoS policies in the network, based on these threshold states. However, the Global Manager does not display the threshold values configured in the Regional Managers.

To view the details about a threshold, select a threshold and click Open and display the Threshold State Details form.

QoS Interfaces Form: Incidents Tab

The Incidents tab displays information on the incidents raised on the selected interface.

Attributes: Incidents Tab

Attribute	Description
Severity	Seriousness that NNMi calculates for the incident. Possible values are: Normal Warning Minor Major Critical Unknown Disabled Not Polled No Status
Lifecycle State	Identifies where the incident is in the incident lifecycle.
Last Occurrence Time	Used when suppressing duplicate incidents or specifying an incident rate. Indicates the time when the duplicate or rate criteria were last met for a set of duplicate incidents or for a set of incidents that has a rate criteria that was met. If there are no duplicate incidents or incidents that have a rate criteria that were met, this date is the same as the First Occurrence Time.
Correlation Nature	This incident's contribution to a root-cause calculation, if any.
Source Node	The Name attribute value of the node associated with the incident. Click the Lookup icon and select Show Analysis or Open to display the Node Form for more information about the node.
Source Object	Name used to indicate the configuration item that is malfunctioning on the source node. Click the Lookup icon and select Show Analysis or Open to display the Node Form for more information about the object.
Message	The incident message defined by NNMi.

The global manager raises incidents for the overall health of the configured QoS interfaces in the network, based on the threshold states collected from all regional managers.

QoS In or Out Policy

The QoS In or Out Policy form displays the following details:

• Traffic Class name: Name of the Traffic Class mapped to the policy.
• Action: Type of action applied to the policy and associated with the Traffic Class.

Analysis Pane

The Analysis Pane shows the details of the selected QoS Interface, such as, Interface Name, Interface Description, Interface Speed, In Policy, and Out Policy.

The Performance panel enables you to analyze the performance faults for the selected QoS Interface, in the form of graphs. The graph shows the following information:

• Interface utilization of the selected QoS Interface.
• Availability of the selected QoS Interface. It denotes whether the interface is active or not.

You can easily monitor and analyze the performance of the QoS Interface, from the color of the status. Whenever any problem arises, you can view the status in the Performance panel. The status of the probe enables you to easily determine the root cause of the fault.

The following table indicates the status information:

QoS Interface Status	Status color indicating in the graph
Nominal, NOMINAL	Normal
High, Low	Major
Critical	Critical
No status	No Status
UNAVAILABLE, UNKNOWN	Unknown
NOT POLLED, Not Polled, Threshold not set, Not defined	Disabled

The Traffic Classes tab on the QoS Interfaces Inventory displays the information on the set of Traffic Classes, Policy name and the QoS actions implemented.

For the interfaces on the Juniper devices, the tab also displays the queue number to which the each traffic (forwarding) class belongs.

The possible QoS actions are Policing, Shaping, Queueing, Packet Marking, and RED.

View QoS Policy Details

The QoS Policies Inventory view enables you to view the QoS policies that are configured on the interfaces and the type of QoS Actions applied on it.

To launch the QoS Policies Inventory view:

1. Log on to NNMi console using your user name and password.
2. Click Quality Assurance in the Workspaces panel. The Quality Assurance tab expands.
3. Click QoS Policies. The QoS enabled policies that are discovered in your network appear in the content pane along with some key attributes. By default, this information is refreshed every 300 seconds, or 5 minutes.

Key Attributes of the QoS Policies Inventory View

The QoS Policies Inventory view displays the following key attributes:

Attribute Name	Description
Policy Name	The name of the policy applied. By default, this attribute displays only the parent policy name. This attribute displays the child policy, only if the child policy is directly applied on an interface. This attribute does not display a child policy, if it is referred to by multiple parent policies.
Applied on Interfaces	The total number of interfaces to which the policy is mapped.
Hosted on Node	The name of the node on which the interface mapped to the selected policy resides.
Policing	Indicates that the "Policing" action is configured for one or more traffic classes associated with the selected policy.
Shaping	Indicates that the "Shaping" action is configured for one or more traffic classes associated with the selected policy.
Queuing	Indicates that the "Queuing" action is configured for one or more traffic classes associated with the selected policy.
Packet Marking	Indicates that the "Packet Marking" action is configured for one or more traffic classes associated with the selected policy.
RED	Indicates that the "RED" action is configured for one or more traffic classes associated with the selected policy.
Tenant	Specifies the NNMi tenant selected for the selected policy.
Management Server	Specifies whether the NNMi management server is local or specifies the name of the regional manager.
Management Mode	Specifies whether the source node is managed or not. Possible states are as follows: Managed: Indicates that the node is managed. Not Managed: Indicates that the node is not managed on purpose. Out of Service: Indicates that a node is unavailable because it is out of service.

You can filter the policies listed in this view based on all the columns.

To view a selected QoS Policy:

1. In the QoS Policies Inventory View, select a QoS policy and click Open. The QoS Policy Form appears.

2. In the QoS Policy form, you can view the following information on the selected policy:

   • Interface: Displays the interface on which the policy is configured. Select the interface and click Open to open the QoS Interfaces Inventory View for the selected interface.
   • Traffic Classes: Displays the traffic classes configured for the selected policy. For more information, see  .

Interfaces

The Interface tab displays information about the discovered interfaces for which the QoS policies are configured.

Attributes: Interface Tab

Attribute	Description
Interface Name	The name of interface.
Hosted On Node	The name of the node on which the interface resides.
In Policy	The name of the In policy associated with the interface.
Out Policy	The name of the Out policy associated with the interface.
Applied On	The interface on which the policy is applied. Possible values are: Control Plane Interface Sub Interface
Management Server	Specifies whether the NNMi management server is local or specifies the name of the regional manager.

Traffic Classes

The Traffic Classes tab displays the information about the set of Traffic Class names and the QoS actions implemented on it.

For a parent policy, the Traffic Classes tab displays the class configurations for the parent policy as well as the child policy.

Attributes: Traffic Classes Tab

Attribute	Description
Traffic Class Name	Displays the name of a Traffic Class mapped to the policy. Click Lookup next to the In Policy and the Out Policy fields to view information on the policies associated with the traffic class. To view the QoS Class Details for the selected traffic class, follow these steps: Click Lookup next to the In Policy or Out Policy fields. Select Open to open the QoS Policy form. Select Traffic Classes tab, select a traffic class and click Open to open the QoS Class Map form. This form displays the action definitions associated with a class. For example, if the queuing action is configured for Class A, the QoS Class Map form displays a tab for queuing action. The tab displays the properties and the value for each property. The values for these properties are measured in bits per second (bps). This form does not display the details for nested classes.
Policy Name	Displays the name of the policy for which you have defined the class. You can use this attribute to identify the policy name for nested policies. For example, you have defined Policy1 as the parent policy. Policy2 and Policy21 are children of Policy1. The Traffic Classes tab displays the classes defined for Policy1, Policy2, and Policy21; the Policy Name attribute displays the names of the policies for each class.
Policing	Indicates that the "Policing" action is configured for one or more traffic classes associated with the selected policy.
Shaping	Indicates that the "Shaping" action is configured for one or more traffic classes associated with the selected policy.
Queuing	Indicates that the "Queuing" action is configured for one or more traffic classes associated with the selected policy.
Packet Marking	Indicates that the "Packet Marking" action is configured for one or more traffic classes associated with the selected policy.
RED	Indicates that the "RED" action is configured for one or more traffic classes associated with the selected policy.

You can sort the data displayed in this tab based on all the above attributes.

QoS Policy Hierarchy

The QoS Policy Hierarchy tab displays the hierarchical details of the selected policy. The QoS Policy Hierarchy tab appears only for a policy that contains references to other policies. In other words, the QoS Policy form displays this tab for only a parent policy.

Attributes: QoS Policy Hierarchy Tab

Attribute	Description
Policy Name	The name of the parent or child policy.
Direct Parent Policy	The name of the parent policy.
Hierarchy Level	The hierarchy level of the policy. For a parent policy, this attribute displays 0 For a child policy, this attribute displays 1

To view the traffic class associated with the selected QoS child policy, follow the below steps:

1. In the QoS Policy Hierarchy Tab, select a QoS child policy.
2. Click Open.

The QoS Policy Hierarchy form opens displaying the traffic classes configured for the selected policy. For more information, see  .

View QoS Actions Details

The QoS Actions inventory view enables you to view the overview of QoS Actions that are applied to interfaces based on a particular traffic flow and a policy (Incoming and Outgoing traffic).

This view displays actions configured for the parent policy as well as the child policy. However, the view lists all actions under the parent policy name and does not display the child policy name.

To launch the QoS Actions Inventory view:

1. Log on to NNMi console using your user name and password.
2. Click Quality Assurance in the Workspaces panel. The Quality Assurance tab expands.
3. Click QoS Actions. The QoS enabled actions that are discovered in your network appear in the content pane along with some key attributes. By default, this information is refreshed every 300 seconds, or 5 minutes.

Key Attributes of the QoS Actions Inventory View

The QoS Actions Inventory view displays the following key attributes:

Attribute Name	Description
State	The threshold state for the action. Can be one of the following values: Threshold States State Description High For Count-Based Threshold Configuration: Indicates that the measured value of the metric is above the configured High Value and recurs for the consecutive number of times specified in the Trigger Count. For Time-Based Threshold Configuration: Indicates that the measured value of the metric is above the configured High Value and this high value persists for the specified High Duration within the High Duration Window. Nominal Indicates that the measured value of the metric is within the normal healthy range. Unavailable Unable to compute the metric or the computed value is outside the valid range. Threshold Not Set Indicates that the threshold is not set for the metric. None For Count-Based Threshold Configuration: Indicates that the measured value of the metric is zero, and recurs for the consecutive number of times specified in the Trigger Count. For Time-Based Threshold Configuration: Indicates that the measured value of the metric is zero and this zero value persists for the specified duration within the High or Low Duration Window (depending on the metric).
Action	The type of Action applied. Possible values are: Policing Shaping Queuing Packet Marking RED
Traffic Class Name	Name of the Traffic Class associated with the selected action.
Policy Name	The name of the policy applied.
Direction	Indicates whether the policy was applied on the incoming or outgoing traffic for an interface.
Queue Number	Indicates the queue number to which the traffic (forwarding) class (on which the action is configured) is associated. This field is applicable only for Juniper devices.
Interface Name	The name of the interface mapped to the QoS action.
Hosted On Node	The name of the node on which the interface resides.
Tenant	Specifies the NNMi tenant selected for the node (specified in Hosted On Node attribute).
Management Server	Specifies whether the NNMi management server is local or specifies the name of the regional manager.
Management Mode	Specifies whether the source node is managed or not. Possible states are as follows: Managed: Indicates that the node is managed. Not Managed: Indicates that the node is not managed on purpose. Out of Service: Indicates that a node is unavailable because it is out of service.

You can filter the QoS actions listed in this view based on all columns except the Traffic Class Name column.

If there are large number of QoS actions, you can filter the actions based on the various QA groups. As you type, the auto-complete feature lists the matching QA Groups. You can select a QA Group name from the list.

To view a selected QoS Action:

1. In the QoS Actions Inventory View, select a QoS action.
2. Click Open. The QoS Action Form appears.

In the QoS Action form, you can view the following information on the selected action:

• Interface: This tab displays the interface on which the action is configured. Select the interface and click Open to open the QoS Interfaces Inventory View for the selected interface.
• QoS Policies: This tab displays the policy that is associated with the action. Select a policy and click Open to open the QoS Policies Inventory View for the selected policy

The Analysis panel of the QoS Action view displays the Threshold States tab. This tab displays the details about the states of the thresholds configured on the interface. For more information about the Threshold States tab, see  .

Interfaces

The Interface tab in the QoS Actions form displays information about the interfaces for which the selected QoS action is configured.

Attributes: Interface Tab

Attribute	Description
Interface Name	The name of interface.
Hosted On Node	The name of the node on which the interface resides.
In Policy	The name of the In policy associated with the interface.
Out Policy	The name of the Out policy associated with the interface.
Applied On	The interface on which the policy is applied. Possible values are: Control Plane Interface
Tenant	Specifies the NNMi tenant selected for the interface.
Management Server	Specifies whether the NNMi management server is local or specifies the name of the regional manager.
Management Mode	Specifies whether the source node is managed or not. Possible states are as follows: Managed: Indicates that the node is managed. Not Managed: Indicates that the node is not managed on purpose. Out of Service: Indicates that a node is unavailable because it is out of service.

QoS Policies

The QoS Policies tab in the QoS Actions form displays information about the interfaces and QoS policies mapped to the selected QoS action.

Attributes: QoS Policies Tab

Attribute	Description
Policy Name	The name of the policy mapped to the selected QoS action. To view the interfaces and traffic classes associated with the selected policy, click Open after selecting a policy. To view the QoS class map details for the selected traffic class, select a traffic class in the Traffic Class tab of the QoS Policy form, and click Open. The QoS Class Map form does not display the details for nested classes.
Applied on Interfaces	The total number of interfaces to which the selected QoS policy is mapped.
Hosted on Node	The name of the node on which the interface mapped to the selected policy resides.
Policing	Indicates that the "Policing" action is configured for one or more traffic classes associated with the selected policy.
Shaping	Indicates that the "Shaping" action is configured for one or more traffic classes associated with the selected policy.
Queuing	Indicates that the "Queuing" action is configured for one or more traffic classes associated with the selected policy.
Packet Marking	Indicates that the "Packet Marking" action is configured for one or more traffic classes associated with the selected policy.
RED	Indicates that the "RED" action is configured for one or more traffic classes associated with the selected policy.
Tenant	Specifies the NNMi tenant selected for the selected policy.
Management Server	Specifies whether the NNMi management server is local or specifies the name of the regional manager.
Management Mode	Specifies whether the source node is managed or not. Possible states are as follows: Managed: Indicates that the node is managed. Not Managed: Indicates that the node is not managed on purpose. Out of Service: Indicates that a node is unavailable because it is out of service.

Threshold States

The Threshold State tab in the Analysis pane displays information about the discovered threshold states for the selected QoS interfaces and policies.

An administrator can set the thresholds to monitor the health and performances of the configured QoS policies. For more information about setting up thresholds for configured QoS policies, see Configure QoS Thresholds.

Attributes: Threshold States Tab

Attribute	Description
Metric	Name of the metric that has crossed the threshold state for the configured QoS interface.
Threshold State	Threshold state for the QoS elements. Can be of the following values: High Specifies that the metric value for the QoS policy crossed the configured threshold value. Nominal Specifies that the metric value for the QoS policy is within the configured threshold value.
Type	Type of the threshold set for the metric. Can be of the following types: CountNNM iSPI Performance for QA raises an incident only if the threshold for the configured QoS policy has crossed for a pre-specified number of times consecutively. TimeNNM iSPI Performance for QA raises an incident only if the metric value is beyond the threshold value for a pre-specified time period.
Configured	Threshold value that the administrator has configured for the policy. NNM iSPI Performance for QA raises an incident when the metric value crosses the configured threshold value and sets the threshold state to High.
Rearm	Rearm value that the administrator has configured for the policy. NNM iSPI Performance for QA raises an incident when the metric value crosses the configured threshold value. When the metric value reaches the rearm value, NNM iSPI Performance for QA clears the incident and sets the threshold state to Nominal.

Each time the NNM iSPI Performance for QA starts running on the Global Manager, the Global Manager pulls the changed threshold states from all Regional Managers since the last run of NNM iSPI Performance for QA. The Global Manager then raises incidents for the overall health of the configured QoS policies in the network, based on these threshold states.

Quality of Service (QoS) Actions

The QoS actions are listed below:

Traffic Queuing

The Queuing action is required only when the interface is busy. Typical queuing is based on the First in First Out (FIFO) principle wherein the packet that has been waiting for the longest period is transmitted first. This results in a tail drop once the queue is full. To override this, you can specify the queuing algorithm, which is the deciding factor to determine which packet must be transmitted first in the queue. There are several queuing strategies, such as WFQ, Random Early Detector (RED), priority, and custom queuing. You can also specify the bandwidth allotted, and the maximum allowed queue size for the traffic class.

Traffic Policing

Traffic Policing is the process of dropping or discarding packets in a traffic stream, in accordance with the corresponding meter, which enforces a traffic flow.

Traffic Shaping

Traffic Shaping is the process of delaying the packet within a traffic stream, in order to conform to some of the defined traffic profiles/flows. You can specify the committed traffic-shaping rate, burst size, excess burst size, adaptive traffic shaping rate (if enabled) and the limit type (peak rate / average rate).

Traffic Marking

Traffic Marking involves setting or changing one or more attributes of the traffic that belongs to a specific traffic class. Traffic Marking can be defined as the process of setting a Differentiated Services (DS) code point on a packet, in accordance with the defined rules.

RED

Random Early Detect (RED) is also known as random early drop or random early discard. RED mechanism can be applied on network components, to ensure better results during network congestion. During a network congestion, a network component (example: Router) buffers maximum packets, and drops other packets, which cannot be buffered. RED mechanism estimates the average queue size and decides which packets are to be dropped. By using the RED algorithm, it is ensured that all important packets reach the destination.

QoS Class Map Form

Displays the name of a Traffic Class mapped to the policy.

Click Lookup next to the In Policy and the Out Policy fields to view information on the policies associated with the traffic class.

To view the QoS Class Details for the selected traffic class, follow these steps:

1. Click Lookup next to the In Policy or Out Policy fields.
2. Select Open to open the QoS Policy form.

3. Select Traffic Classes tab, select a traffic class and click Open to open the QoS Class Map form. This form displays the action definitions associated with a class.

   For example, if the queuing action is configured for Class A, the QoS Class Map form displays a tab for queuing action. The tab displays the properties and the value for each property. The values for these properties are measured in bits per second (bps).

This form does not display the details for nested classes.

Identify QoS Interfaces with Threshold Exceptions

The QoS Interfaces Threshold Exceptions inventory view enables you to view the list of QoS interfaces for which any of the following actions crossed the threshold and NNM iSPI Performance for QA raised an exception:

• Packet Marking
• Policing
• Queuing
• Shaping
• RED

For information about each of the above listed actions, see .

To launch the QoS Interfaces Threshold Exceptions inventory view:

1. Log on to NNMi console using your user name and password.
2. Click Quality Assurance in the Workspaces panel. The Quality Assurance tab expands.
3. Click QoS Interfaces Threshold Exceptions. Tthe QoS interfaces that crossed the threshold for an action appear in the content pane along with some key attributes. By default, this information is refreshed every 300 seconds, or 5 minutes.

The QoS Threshold Exceptions Interfaces Inventory view displays the following key attributes:

Attribute Name	Description
Interface Name	The name of interface.
Hosted on Node	The name of the node on which the interface resides.
Policy Name	The name of the policy applied on the selected interface. By default, this attribute displays only the parent policy name.
Direction	Indicates whether the policy is applied on the incoming traffic or outgoing traffic for the selected interface.
Traffic Class Name	Name of an associated Traffic Class, based on a specific criterion.
Class State	The threshold state for the thresholds configured on the traffic class.
Packet Marking	Indicates the threshold state for the "Packet Marking" action configured for one or more traffic classes associated with the selected policy.
Policing	Indicates the threshold state for the "Policing" action configured for one or more traffic classes associated with the selected policy.
Queuing	Indicates the threshold state for the "Queuing" action configured for one or more traffic classes associated with the selected policy.
Shaping	Indicates the threshold state for the "Shaping" action configured for one or more traffic classes associated with the selected policy.
RED	Indicates the threshold state for the "RED" action configured for one or more traffic classes associated with the selected policy.
Tenant	Indicates the NNMi tenant selected for the node (specified in Hosted On Node attribute).
Management Server	Specifies whether the NNMi management server is Local or not. The name of the Regional Manager is displayed if the NNMi management server is not local.

The actions and class states show the following threshold states:

Threshold States

State	Description
High	For Count-Based Threshold Configuration: Indicates that the measured value of the metric is above the configured High Value and recurs for the consecutive number of times specified in the Trigger Count. For Time-Based Threshold Configuration: Indicates that the measured value of the metric is above the configured High Value and this high value persists for the specified High Duration within the High Duration Window.
Nominal	Indicates that the measured value of the metric is within the normal healthy range.
Unavailable	Unable to compute the metric or the computed value is outside the valid range.
Threshold Not Set	Indicates that the threshold is not set for the metric.
None	For Count-Based Threshold Configuration: Indicates that the measured value of the metric is zero, and recurs for the consecutive number of times specified in the Trigger Count. For Time-Based Threshold Configuration: Indicates that the measured value of the metric is zero and this zero value persists for the specified duration within the High or Low Duration Window (depending on the metric).

If there are large number of QoS interfaces that crossed the threshold, you can filter those interfaces based on the various QA groups. As you type, the auto-complete feature lists the matching QA Groups. You can select a QA Group name from the list.

The view shows threshold states for the traffic class and five different actions: Packet Marking, Policing, Queuing, Shaping, and RED. An interface appears in this view if at least one of the above thresholds is violated for the interface.

To open the QoS Interface inventory view for an interface, select the interface and click Open. For information about QoS Interface inventory view, see "Viewing QoS Interface Details" on page 1.

You can filter the interfaces listed in this view based on all columns of this view.

Identify the QoS Actions Threshold Exceptions Inventory View

The QoS Actions Threshold Exceptions inventory view enables you to view the list of QoS actions that crossed the threshold and NNM iSPI Performance for QA raised an exception.

For more information about actions, see .

To launch the QoS Threshold Exceptions Actions Inventory view:

1. Log on to NNMi console using your user name and password.
2. Click Quality Assurance in the Workspaces panel.
3. Click QoS Actions Threshold Exceptions. The QoS actions that crossed the threshold appear in the content pane along with some key attributes. By default, this information is refreshed every 300 seconds, or 5 minutes.

The QoS Threshold Exceptions Actions Inventory view displays the following key attributes:

Attribute Name	Description
State	The threshold state for the action. Can be any of the following values: Threshold States State Description High For Count-Based Threshold Configuration: Indicates that the measured value of the metric is above the configured High Value and recurs for the consecutive number of times specified in the Trigger Count. For Time-Based Threshold Configuration: Indicates that the measured value of the metric is above the configured High Value and this high value persists for the specified High Duration within the High Duration Window. Nominal Indicates that the measured value of the metric is within the normal healthy range. Unavailable Unable to compute the metric or the computed value is outside the valid range. Threshold Not Set Indicates that the threshold is not set for the metric. None For Count-Based Threshold Configuration: Indicates that the measured value of the metric is zero, and recurs for the consecutive number of times specified in the Trigger Count. For Time-Based Threshold Configuration: Indicates that the measured value of the metric is zero and this zero value persists for the specified duration within the High or Low Duration Window (depending on the metric).
Action	The name of the action that crossed the threshold.
Traffic Class Name	Name of an Traffic Class associated with the selected action.
Policy Name	The name of the policy associated with the selected action. By default, this attribute displays only the parent policy name.
Direction	Indicates whether the policy is applied on the incoming traffic or outgoing traffic for the selected interface.
Interface Name	The name of the interface associated with the selected action
Hosted on Node	The name of the node on which the interface resides
Tenant	Specifies the NNMi tenant selected for the node (specified in Hosted On Node attribute)
Management Server	Specifies whether the NNMi management server is Local or not. The name of the Regional Manager is displayed if the NNMi management server is not local.
Management Mode	Specifies whether the source node is managed or not Possible states are as follows: Managed: Indicates that the node is managed. Not Managed: Indicates that the node is not managed on purpose. Out of Service: Indicates that a node is unavailable because it is out of service.

The actions show one of the following threshold states:

Threshold States

State	Description
High	For Count-Based Threshold Configuration: Indicates that the measured value of the metric is above the configured High Value and recurs for the consecutive number of times specified in the Trigger Count. For Time-Based Threshold Configuration: Indicates that the measured value of the metric is above the configured High Value and this high value persists for the specified High Duration within the High Duration Window.
Nominal	Indicates that the measured value of the metric is within the normal healthy range.
Unavailable	Unable to compute the metric or the computed value is outside the valid range.
Threshold Not Set	Indicates that the threshold is not set for the metric.
None	For Count-Based Threshold Configuration: Indicates that the measured value of the metric is zero, and recurs for the consecutive number of times specified in the Trigger Count. For Time-Based Threshold Configuration: Indicates that the measured value of the metric is zero and this zero value persists for the specified duration within the High or Low Duration Window (depending on the metric).

To open the QoS Action inventory view for an interface, select the interface and click Open. For information about QoS Action inventory view, see "Viewing QoS Actions Details" on page 1.

You can filter the actions listed in this view based on all columns of this view.

If there are large number of QoS actions that crossed the threshold, you can filter those QoS actions based on the various QA groups. As you type, the auto-complete feature lists the matching QA Groups. You can select a QA Group name from the list.