# Class CIM_EFService
extends CIM_DiffServService

This class represents a specialization of the general concept of forwarding network traffic by adding specific semantics that characterize the operation of the Expedited Forwarding (EF) Service (defined in RFC 2598). The EF PHB can be used to build a low loss, low latency, low jitter, assured bandwidth, end-to-end service through DiffServ domains. Such a service appears to the endpoints like a point-to-point connection or a virtual leased line. This service has also been described as Premium service in the IETF literature. RFC 2598 defines one DSCP for the EF service. Thus, there is no need to define any attributes in this class, since an instance of the EFService class, by definition, means that this particular DSCP is used. EFService is deprecated since forwarding based on the value of the DiffServ Code Point is specified using a FilterList, which is associated with a ClassifierElement. If there is a need to distinguish a higher-level set of coordinated QoS services, the DiffServService class can be instantiated directly.

### 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_QoSService
|
+--CIM_DiffServService
|
+--CIM_EFService

## Direct Known Subclasses

## Class Qualifiers

Name | Data Type | Value
--- | --- | ---
Deprecated | string | CIM_DiffServService
Description | string | This class represents a specialization of the general concept of forwarding network traffic by adding specific semantics that characterize the operation of the Expedited Forwarding (EF) Service (defined in RFC 2598). The EF PHB can be used to build a low loss, low latency, low jitter, assured bandwidth, end-to-end service through DiffServ domains. Such a service appears to the endpoints like a point-to-point connection or a virtual leased line. This service has also been described as Premium service in the IETF literature. RFC 2598 defines one DSCP for the EF service. Thus, there is no need to define any attributes in this class, since an instance of the EFService class, by definition, means that this particular DSCP is used. EFService is deprecated since forwarding based on the value of the DiffServ Code Point is specified using a FilterList, which is associated with a ClassifierElement. If there is a need to distinguish a higher-level set of coordinated QoS services, the DiffServService class can be instantiated directly.
UMLPackagePath | string | CIM::Network::QoS
Version | string | 2.7.0

## Class Properties

### Inherited Properties

Name | Data Type
--- | ---
Caption | string
CommunicationStatus | uint16
CreationClassName | string
Description | string
DetailedStatus | uint16
DSCP | uint8
ElementName | string
EnabledDefault | uint16
EnabledState | uint16
Generation | uint64
HealthState | uint16
InstallDate | datetime
InstanceID | string
LoSID | string
LoSOrgID | string
Name | string
OperatingStatus | uint16
OtherEnabledState | string
PHBID | uint16
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