DISTRIBUTED SERVICE FUNCTION FORWARDING SYSTEM
First Claim
Patent Images
1. A distributed service function (SF) forwarding system comprising:
- service network (SN) controller instances configured to control SNs of a network overlay structure in units of service function chains (SFCs) obtained by abstracting network functions necessary for a service and application sequences of the network functions, and generate service graphs which are service function paths (SFPs); and
a software defined network (SDN) infrastructure controller including an SFC handling classifier function of mapping an SN capable of generating a service graph of an SFC requested for generated traffic to an SN controller instance to resolve a traffic bottleneck caused according to a location of an SFC classifier on which data traffic is concentrated and a number of instances.
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Abstract
Provided is a distributed service function (SF) forwarding system that applies the corresponding service function chain (SFC) to traffic classified by a plurality of service network (SN) controller instances based on an SN overlay structure. Therefore, by selectively combining and executing necessary network functions (SFs) according to a path and traffic made up of defined component services, it is possible to dynamically configure and control one network service.
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Citations
11 Claims
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1. A distributed service function (SF) forwarding system comprising:
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service network (SN) controller instances configured to control SNs of a network overlay structure in units of service function chains (SFCs) obtained by abstracting network functions necessary for a service and application sequences of the network functions, and generate service graphs which are service function paths (SFPs); and a software defined network (SDN) infrastructure controller including an SFC handling classifier function of mapping an SN capable of generating a service graph of an SFC requested for generated traffic to an SN controller instance to resolve a traffic bottleneck caused according to a location of an SFC classifier on which data traffic is concentrated and a number of instances. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification