Abstract: A method for restoring a network slice includes receiving a request to restore the network slice to a previous configuration, the previous configuration and a current configuration of the network slice being stored in a datastore, generating sets of subtrees from device-specific data in the current configuration and the previous configuration to be added, removed, or replaced in the current configuration, and restoring the network slice to the previous configuration based on the sets of subtrees.

Abstract: A system includes at least one memory storing computer readable instructions and at least one processor configured to execute the computer readable instructions to cause the system to: identify a network device instance including at least two datasources; obtain a first dataset from a first datasource of the network device instance; obtain a second dataset from a second datasource of the network device instance; merge the first dataset and the second dataset to create a combined dataset; and store the combined dataset in an indexed repository. The first dataset includes network configuration data associated with a network device and hosted by a Persistent Management Agent and the second dataset includes operational data of the network device.

Abstract: Methods, apparatuses and computer readable storage mediums provide virtual network slicing without duplicating network configuration data (also referred to as network configuration information) on a slice-by-slice basis by maintaining a single physical network datastore including network configuration information for all network entities in the physical network, but generating slice views for respective virtual network slices as needed over time. Methods, apparatuses and computer readable storage mediums also enable configuration of a plurality of virtual network slices sharing a physical network infrastructure.

Abstract: Methods, apparatuses and computer readable storage mediums provide virtual network slicing without duplicating network configuration data (also referred to as network configuration information) on a slice-by-slice basis by maintaining a single physical network datastore including network configuration information for all network entities in the physical network, but generating slice views for respective virtual network slices as needed over time. Methods, apparatuses and computer readable storage mediums also enable configuration of a plurality of virtual network slices sharing a physical network infrastructure.

Abstract: A method for restoring a network slice includes receiving a request to restore the network slice to a previous configuration, the previous configuration and a current configuration of the network slice being stored in a datastore, generating sets of subtrees from device-specific data in the current configuration and the previous configuration to be added, removed, or replaced in the current configuration, and restoring the network slice to the previous configuration based on the sets of subtrees.

Abstract: Methods, apparatuses and computer readable storage mediums provide virtual network slicing without duplicating network configuration data (also referred to as network configuration information) on a slice-by-slice basis by maintaining a single physical network datastore including network configuration information for all network entities in the physical network, but generating slice views for respective virtual network slices as needed over time. Methods, apparatuses and computer readable storage mediums also enable configuration of a plurality of virtual network slices sharing a physical network infrastructure.

Abstract: A method for generating alarm notifications in a network, comprises: identifying a stateful alarm object instance linked to a primitive event from a network device of a first type, the stateful alarm object instance based on an alarm configuration for an alarm type associated with the network device of a first type; determining that the primitive event results in a state transition in a state machine for the stateful alarm object instance linked to the primitive event from the network device of a first type; deciding whether to generate an alarm in response to the state transition; and selectively generating the alarm based on the deciding step.

Abstract: In a method for managing a physical network, whether a slice owner of a virtual network slice in the physical network is allowed to view a network information message is determined based on at least one of classification metadata or allocation metadata associated with the virtual network slice. The network information message, which is received from the physical network, includes at least one of (i) an autonomous notification from a network node in the physical network or (ii) operational data for the network node in the physical network. The network information message is provided to the slice owner in response to determining that the slice owner is allowed to view the network information message.

Abstract: Methods, apparatuses and computer readable storage mediums provide virtual network slicing without duplicating network configuration data (also referred to as network configuration information) on a slice-by-slice basis by maintaining a single physical network datastore including network configuration information for all network entities in the physical network, but generating slice views for respective virtual network slices as needed over time. Methods, apparatuses and computer readable storage mediums also enable configuration of a plurality of virtual network slices sharing a physical network infrastructure.

Abstract: Methods, apparatuses and computer readable storage mediums provide virtual network slicing without duplicating network configuration data (also referred to as network configuration information) on a slice-by-slice basis by maintaining a single physical network datastore including network configuration information for all network entities in the physical network, but generating slice views for respective virtual network slices as needed over time. Methods, apparatuses and computer readable storage mediums also enable configuration of a plurality of virtual network slices sharing a physical network infrastructure.

Abstract: In a method for managing a physical network, whether a slice owner of a virtual network slice in the physical network is allowed to view a network information message is determined based on at least one of classification metadata or allocation metadata associated with the virtual network slice. The network information message, which is received from the physical network, includes at least one of (i) an autonomous notification from a network node in the physical network or (ii) operational data for the network node in the physical network. The network information message is provided to the slice owner in response to determining that the slice owner is allowed to view the network information message.

Abstract: A software installation manager for use in a data network. The software installation manager exchanges messages with individual nodes of a set of nodes for directing the installation of a software product on the nodes of the set in parallel according to a non-blocking sequence. The non-blocking sequence is characterized in that the installation of a software product on one node of the set does not block the installation of the software product on another node of the set.