International Business Machines Corporation

Ng4t Gmbh

Jochen Kappel

Canio Cillis

Martin McDonald

Christian Van Maastricht

Laurence J Plant

Josef Reisinger

Daniel Joseph Martin

An approach is provided for optimizing a deployment pattern. Precedent system(s) that have components that match components in an initial deployment pattern of a new system are identified. A historical performance of the precedent system(s) is determined to not satisfy target non-functional requirements (NFRs) and target service levels of the new system. Responsive to determining that the historical performance did not satisfy the NFRs and the target service levels, the components in the initial deployment pattern are modified and a new deployment pattern for the new system is generated so that (i) the new deployment pattern includes the modified components and (ii) a performance of the new system using the new deployment pattern is likely to satisfy the target NFRs and the target service levels. A recommendation for deploying the new system using the new deployment pattern is generated.

Constructing and enhancing a deployment pattern

An approach is provided for optimizing a deployment pattern. Event and configuration data of precedent systems is aggregated. Based on the aggregated data, a metadata model of the precedent systems is generated. Components of an initial deployment pattern of a new system are identified. Target non-functional requirements (NFRs) and target service levels of the new system are determined. Based on the metadata model, precedent system(s) that have components that match or are similar to the components in the initial deployment pattern are identified. A performance of the precedent system(s) is compared to the NFRs and target service levels. A new deployment pattern for the new system is generated. The new deployment pattern includes a modification of the components identified in the initial deployment pattern. A recommendation for deploying the new system using the new deployment pattern is generated.

A method and associated computer system. A processor queries a service catalog and a virtual service inventory to obtain network service instances including a virtual network function. The processor seamlessly replaces the virtual network function by a new version of the virtual network function without interruption of the network service in the production environment. The processor deploys the new version of the virtual network function unattached to the production environment, including: replacing a network address of the virtual network function in the load balancer with a network address of the new version of the virtual network function. In response to a determination by the processor that the virtual network function has a floating network address, the processor detaches the floating network address from the virtual network function and attaches the detached floating network address to the new version of the virtual network function.

Replacing a virtual network function in a network service

A method and associated computer system. A processor queries a service catalog and a virtual service inventory to obtain network service instances including a virtual network function. The processor deploys a new version of the virtual network function by performing at least one step of the following steps: replacing the network address of the virtual network function with the network address of the new version of the virtual network function; detaching a floating network address from the virtual network function and attaching the detached floating network address to the new version of the virtual network function (if one of the obtained network service instances is connected to a load balancer and/or the virtual network function is configured with an inherent load balancing); replacing the instance identifier of the virtual network function in a forwarding policy rule with the instance identifier of the new version of the virtual network function.

A method and associated system for testing a virtual network function by a virtual network tester, wherein a predefined certification context specification specifies services based on the virtual network function in form of different usage patterns, and wherein a predefined test case selection matrix specifies applicable test cases for each usage pattern. In response to selecting a usage pattern from the different sage patterns, the applicable test cases are determined from the test case selection matrix and control parameters of the test case selection matrix based on the selected usage pattern.

Testing a virtual network function by a virtual network tester

A method and system for testing a Virtualized Network Function (VNF) in a network. Metadata including test parameters pertaining to a network environment specific to the VNF is retrieved. At least one Virtualized Network Tester (VNT) for testing the VNF is created and stored in the network. The metadata is mapped to a test list to define a test suite of test cases based on the test parameters in the metadata. The VNF is tested by the at least one VNT according to the test suite to enable the at least one VNT to emulate the network environment specific to the VNF. The VNF is disconnected from the network and from virtual networks during the testing. If the testing is successful, the VNF is attached to the network and to virtual networks to enable the VNF to be deployed in the network. If the testing is unsuccessful, the method ends.

Growing community of inventors

Gross-Gerau, Germany

Jochen Kappel