Network Function Virtualization (NFV) has emerged as a transformative paradigm in the field of telecommunications and networking. It introduces a revolutionary approach by decoupling network functions from dedicated hardware appliances and instead, vitalizing them to run on general-purpose servers. This shift from traditional, hardware-centric infrastructure to a more flexible and scalable virtualized environment offers numerous advantages, including improved resource utilization, reduced operational costs, and enhanced agility in deploying and managing network services. As the telecommunications industry continues to evolve towards a more software-centric model, NFV stands out as a pivotal enabler for achieving flexibility, scalability, and efficiency in the delivery of next-generation network services. The ongoing evolution of NFV technologies, coupled with collaborative industry efforts, holds the promise of unlocking new possibilities and driving innovation in the dynamic world of telecommunications. NFV allows for the virtualization of network functions, enabling them to run on commodity hardware. This leads to better resource utilization and reduced dependency on specialized hardware appliances, translating to cost savings for service providers. Research in NFV provides valuable insights into real-world applications and case studies, demonstrating how organizations can leverage NFV to solve specific challenges, improve efficiency, and deliver innovative network services. Method: TOPSIS, Using the positive ideal solution and the negative ideal solution as reference solutions, this method calculates the geometric distance between each alternative solution. The fundamental tenet of TOPSIS is that the performance criteria are assumed to be ascending, with higher numbers denoting superior performance. In order to accommodate different dimensions or scales between the criteria, the TOPSIS architecture frequently uses normalization. Result: From the result Isolation and security is got the first rank and Vendor lock in mitigation is having the lowest rank