The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. Embodiments herein disclose methods and systems of how an application function can request the Fifth Generation (5G) core network to perform a specific action, when a network slice quota reaches a maximum limit or when the behavior of the UE(s) falls outside the expected communication behavior.

A networking system may include a switch coupled to a computing resource. A resource management system may control the computing resource. A controller may be coupled to the switch. The controller may include a resource management interface that is coupled to the resource management system via a communications link. The resource management interface may receive computing resource information for the computing resource via the communications link. The controller may provide control data to the switch to update a cloud network for the computing resource based on the received computing resource information.

Embodiments of the present disclosure relate to methods, apparatuses and computer readable mediums for Virtual Network Function (VNF) management. In example embodiments, there is provided a method of managing a VNF. The method includes sending, from a VNF manager to a charging component, at least one request for charging information associated with at least one VNF. The VNF manager manages the at least one VNF. The charging information indicates respective rates for charging the at least one VNF under different network conditions. The method further includes, in response to receiving the charging information, managing lifecycle of the at least one VNF at least in part based on the charging information.

The present disclosure relates to the technical field of cloud computing, and to a cloud system migration method and device, and a hybrid cloud system. The method includes: dividing each service system in a first cloud system into a plurality of modules; determining the relation between a module to be migrated among the plurality of modules and other modules; copying said module among the plurality of modules to a second cloud system, the type of the first cloud system being different from that of the second cloud system; and establishing a relation in the second cloud system to complete the migration of the first cloud system.

The present application relates to traffic routing for overlay paths in a public cloud network. A path orchestrator receives a configuration of a set of overlay paths for a wide area network virtualization from a client, each overlay path including virtual routing nodes associated with respective geographic regions and at least one policy for a link between the virtual routing nodes. The path orchestrator is configured to instantiate a plurality of virtual routers on computing resources of the public cloud network located within the respective geographic regions based on the configuration, each virtual router configured to route traffic according to the policy for each link associated with the virtual routing node corresponding to the virtual router. The path orchestrator is configured to scale the plurality of virtual routers based on traffic for the client on the set of overlay paths.

Methods and apparatus are disclosed for configuring one or more processors to implement service function chains comprising one or more virtualised service functions. A method according to one aspect, performed by a processing module (330) implemented on one or more processors (30), involves steps being performed in respect of at least one new virtualised service function (33) to be included in a service function chain of: determining a position in the service function chain at which the new virtualised service function (33) is to be included; allocating at least one internal address to the new virtualised service function, the at least one internal address being an address to be usable by a switching processor (34); and providing to the switching processor (34) an indication of the at least one internal address allocated to the new virtualised service function (33).

Mechanisms for migration in a communication network of VNFs to VIMs. A method is performed by a migration controller. The method includes obtaining information of network complexity per VNF, information of VM usage per VNF, and information of processing capacity of compute nodes per VIM. The method further includes determining a mapping between the VNFs and the VIMs. The mapping defines at which of the VIMs each of the VNFs is instantiable. The method further includes ordering the VNFs in a list by matching the information of network complexity per VNF and the information of VM usage per VNF to the information of processing capacity of compute nodes per VIM and taking into account the mapping between the VNFs and the VIMs. The method further includes initiating migration of the VNFs to the VIMs in the order defined by the list.

Mechanisms for migration in a communication network of VNFs to VIMs. A method is performed by a migration controller. The method includes obtaining information of network complexity per VNF, information of VM usage per VNF, and information of processing capacity of compute nodes per VIM. The method further includes determining a mapping between the VNFs and the VIMs. The mapping defines at which of the VIMs each of the VNFs is instantiable. The method further includes ordering the VNFs in a list by matching the information of network complexity per VNF and the information of VM usage per VNF to the information of processing capacity of compute nodes per VIM and taking into account the mapping between the VNFs and the VIMs. The method further includes initiating migration of the VNFs to the VIMs in the order defined by the list.

This disclosure describes systems, devices, and techniques for migrating virtualized resources between the main region and edge locations. Live migration enables virtualized resources to remain operational during migration. Edge locations are typically separated from secure data centers via the Internet, a direct connection, or some other intermediate network. Accordingly, to place virtualized resources within an edge location, the virtualized resources must be migrated over a secure communication tunnel that can protect virtualized resource data during transmission over the intermediate network. The secure communication tunnel may have limited data throughput. To efficiently utilize resources of the secure communication tunnel, and to reduce the impact of migrations on virtualized resource operations, virtualized resource migrations may be carefully scheduled in advance. For instance, virtualized resources may be selectively migrated at times-of-day in which they are likely to be relatively idle, or at times when the communication tunnel is predicted to have sufficient bandwidth.

Network equipment for processing a request from a terminal configured to be connected to a network to which the network equipment can be connected is described. The network equipment includes a receiver configured to receive, from the terminal, a message part of the processing request, a relay agent configured to provide a network identification information into the received message, and a load balancer configured to forward the received message to one of a plurality of processing units of the network equipment, depending on workload information associated with the processing units. The processing units are further configured to retrieve, based on the network identification information extracted from the received message, context information from a database unit shared between the processing units and to process the received message according to a state of the processing request, the processing request state being retrieved from the context information.