Controlling of communication network comprising virtualized network functions

A method, comprising:

• obtaining an indication related to a de-instantiation of at least one virtualized network function providing services related to a communication network, wherein the at least one virtualized network function to be de-instantiated is a party in the communication network being different to the party of the communication network where the apparatus is included, and wherein the indication is obtained from a communication network control element or communication network control function being different to the at least one virtualized network function to be de-instantiated and being different to the party where the apparatus is included, and
• processing the obtained indication for determining or recognizing the virtualized network function being de-instantiated and for avoiding to conduct a communication attempt to the virtualized network function to be de-instantiated when continuing a communication in the communication network after the de-instantiation of the at least one virtualized network function,
• wherein the indication related to the de-instantiation of the at least one virtualized network function is obtained from one of
• a communication network control element or communication network control function acting as a global orchestrator for implementing virtualized network functions, and
• an operation and maintenance element of the communication network.

A non-transitory computer-readable medium storing instructions that, when executed by a processing device, cause the processing device to perform:

• obtaining an indication related to a de-instantiation of at least one virtualized network function providing services related to a communication network, wherein the at least one virtualized network function to be de-instantiated is a party in the communication network being different to the party of the communication network where the computer program product is implemented, and wherein the indication is obtained from a communication network control element or communication network control function being different to the at least one virtualized network function to be de-instantiated and being different to the party where the computer program product is implemented;
• and
• processing the obtained indication for determining or recognizing the virtualized network function being de-instantiated and for avoiding to conduct a communication attempt to the virtualized network function to be de-instantiated when continuing a communication in the communication network after the de-instantiation of the at least one virtualized network function,
• wherein the indication related to the de-instantiation of the at least one virtualized network function is obtained from one of
• a communication network control element or communication network control function acting as a global orchestrator for implementing virtualized network functions, and
• an operation and maintenance element of the communication network.