Chaining of service functions helps automate the flow of traffic between services in a virtual network
So that operators can control traffic with a sequence of several Network Function Virtualizations (NFVs), they must use a technique called Service Function Chaining (SFC) or Network Service Chaining, which creates a chain of connected network services. Examples are firewalls, load balancing and intrusion protection. The technique helps automate the flow of traffic between services in a virtual network and also optimizes the use of network resources by using the optimal routing path.
Furthermore, structuring of SFCs can be achieved with minimal latency by taking advantage of the flexibility of Software Defined Networks (SDN) because it enables improved control of network functions and policy-based resource management.
The elements of a service chain
A service chain consists of several elements: A code base called a service template; a virtual network or a…