# Class CIM_HeadTailDropper
extends CIM_DropperService

HeadTailDropper describes the threshold information of a head or tail dropper. The inherited property DropFrom indicates whether a particular instance of this class is a head dropper or a tail dropper. A head dropper always examines the same queue from which it drops packets, and this queue is always related to the dropper as the following service in the NextService association.

### Table of Contents
Hierarchy
Direct Known Subclasses
Class Qualifiers
Class Properties
Class Methods

## Class Hierarchy

CIM_ManagedElement
|
+--CIM_ManagedSystemElement
|
+--CIM_LogicalElement
|
+--CIM_EnabledLogicalElement
|
+--CIM_Service
|
+--CIM_ConditioningService
|
+--CIM_DropperService
|
+--CIM_HeadTailDropper

## Direct Known Subclasses

## Class Qualifiers

Name | Data Type | Value
--- | --- | ---
Description | string | HeadTailDropper describes the threshold information of a head or tail dropper. The inherited property DropFrom indicates whether a particular instance of this class is a head dropper or a tail dropper. A head dropper always examines the same queue from which it drops packets, and this queue is always related to the dropper as the following service in the NextService association.
UMLPackagePath | string | CIM::Network::QoS
Version | string | 2.7.0

## Class Properties

### Local Class Properties

Name | Data Type | Default Value | Qualifiers
--- | --- | --- | ---
Name | Data Type | Value
QueueThreshold | uint32 |
Description | string | This is an unsigned 32-bit integer that indicates the queue depth (in bytes) at which traffic is dropped. For a tail dropper, all newly arriving traffic is dropped. For a head dropper, packets at the front of the queue are dropped to make room for new packets, which are added at the end.
PUnit | string | byte
Units | string | Bytes

### Inherited Properties

Name | Data Type
--- | ---
AlwaysDrop | uint16
Caption | string
CommunicationStatus | uint16
CreationClassName | string
Description | string
DetailedStatus | uint16
DropFrom | uint16
DropMaintainMetric | uint16
DropperType | uint16
DropStartMetric | uint16
ElementName | string
Enabled | boolean
EnabledDefault | uint16
EnabledState | uint16
Generation | uint64
HealthState | uint16
InstallDate | datetime
InstanceID | string
LoSID | string
LoSOrgID | string
Name | string
OperatingStatus | uint16
OtherDropperType | string
OtherEnabledState | string
PrimaryOwnerContact | string
PrimaryOwnerName | string
PrimaryStatus | uint16
RequestedState | uint16
Started | boolean
StartMode | string
Status | string
SystemCreationClassName | string
SystemName | string
TimeOfLastStateChange | datetime
TransitioningToState | uint16
AvailableRequestedStates | uint16[]
OperationalStatus | uint16[]
StatusDescriptions | string[]

## Class Methods

### Inherited Class Methods

Name | Return Type
--- | ---
ChangeAffectedElementsAssignedSequence | uint32
RequestStateChange | uint32
StartService | uint32
StopService | uint32