Method for realizing network element level parallel service function in network function virtualization environment

Abstract

The invention discloses a method for realizing network element level parallel service functions in a network function virtualization environment. The method comprises the steps of traversing a servicefunction chain, operating a service function decomposition analysis algorithm and decomposing service functions into basic message processing units, called as network elements, and determining and storing operation and operation domain information of the service functions for messages; operating a parallel judgment algorithm through utilization of the obtained operation and operation domain information of the service functions, and determining a service function combination on which parallel optimization can be carried out in the service function chain; performing a parallel optimization algorithm, and combining the parallel service functions; and through combination of non-parallel service functions and the parallelly optimized service functions, organizing and combining the service functions according to an original service function sequence, and establishing a new service function chain. According to the new service function chain, the length of the original service function chainis effectively reduced, the parallelism among the service functions is improved, and the delay cost when the messages pass through the service function chain is clearly reduced.

Description

technical field [0001] The invention relates to the fields of network function virtualization (NFV) and service function chaining (SFC), in particular to a method for realizing network element-level parallel service functions in a network function virtualization environment. Background technique [0002] In the data center, multiple network functions covering layers 4 to 7 in the form of physical dedicated devices or virtual machines are generally deployed, mainly including firewalls, network address translation NAT, etc. The traffic in the data center needs to be processed by various service functions from generation, transmission to termination. At present, these network functions are mainly implemented based on special equipment, which brings problems such as poor scalability, poor flexibility, long update cycle, and high purchase and operation costs. In order to solve these problems, a new concept - Network Function Virtualization (NFV, Network Function Virtualization) ...

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Problems solved by technology

At present, these network functions are mainly implemented based on special equipment, which brings problems such as poor scalability, poor flexibility, long update cycle, high purchase and operation costs, etc.

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