Service Function Chaining Across OpenStack and Kubernetes Domains

Kouchaksaraei, Hadi Razzaghi; Karl, Holger

doi:10.1145/3328905.3332505

Cited by 24 publications

(11 citation statements)

References 2 publications

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“…In this context, microservices can be employed to modernise software-oriented architectures, to promote scalability and maintenance 9,10 and to enhance service agility. 11 The 5G SBA is not an exception to DevOps trend. A microservice-based architecture contributes to a concrete realisation of the 5G SBA, considering scalability, security, management and functional requirements.…”

Section: G Services As Microservicesmentioning

confidence: 99%

“…In particular, services can be deployed in virtual machines or in containers using platforms like OpenStack and Kubernetes to manage VNFs in virtual machines and containers, respectively. 11,31 The conducted evaluation puts in evidence that the implementation using Kubernetes and containers facilitates service management.…”

Section: Microservices and Services In 5g Networkmentioning

confidence: 99%

“…A single physical node can host several virtual machines. 11,38 There are clear advantages with this model, since the life cycle of an NF is easily maintained with the management of virtual machines in traditional infrastructures such as OpenStack and orchestrated using Orchestration frameworks 39 like ONAP and OSM. 40 On the other end, practices such as DevOps 41 introduce agile approaches which that enable automation in early phases of development to promote the release of new functionalities within assured quality and collaboration between different actors.…”

Section: G Services As Microservicesmentioning

confidence: 99%

“…A microservice-based architecture contributes to a concrete realisation of the 5G SBA, considering scalability, security, management and functional requirements. In this line, several authors 5,6,11 have proposed the use of containers (e.g., Docker, LXC, RKT or other containerisation technology) to implement services in 5G networks. For instance, several authors propose the decomposition of the Radio Access Network (RAN) service into microservices 42 to promote scalability and enhance performance or to support the concept of function as a service.…”

Section: G Services As Microservicesmentioning

confidence: 99%

“…9,10 Orchestration platforms for containers, like Kubernetes, facilitate the service management by providing auto scaling and high availability mechanisms for containers implementing specific functions (as microservices). In this regard, Kubernetes is being employed as a solution to manage the virtual network functions implemented in containers for 5G networks, 11 due to the increased service agility. Indeed, the virtualisation support enabled in Kubernetes and Docker contributes significantly to enable network slicing in 5G 12 that provides service differentiation.…”

Section: Introductionmentioning

confidence: 99%

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Next generation of microservices for the 5G Service‐Based Architecture

et al. 2020

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The architecture for 5G core includes a Service-Based Architecture for the diverse network functions (NFs), which relies on HTTP/2 for the SBI and TCP as the underlying transport protocol. The specifications of the HTTP family is moving towards more efficient and secure protocols, which are based on UDP to assure enhanced transport but using TLS to secure the communication channel. The next generation of microservices needs to be more secure, performant and easily manageable, where HTTP/3 and containers orchestration platforms (like Kubernetes) can provide significative contributions towards such goals. Different deployment approaches can be followed for services implemented in compliance to the 5G SBA. This paper contributes with the assessment of deployment models for services in 5G networks, where NFs are implemented following traditional architectures (all the functions in a VM) or as serverless architectures (with functions distributed in containers). The performance of microservices in Kubernetes is also evaluated. The evaluation conducted also considers the employment of different versions of HTTPs to empower the service-based interfaces of 5G services. Results demonstrate performance benefits of employing HTTP/3, based on QUIC protocol, in scenarios with networks characterised by losses or delay conditions. Despite such gain, deployment in 5G networks needs to carefully consider aspects related with connection tracking mechanisms to support high volumes of requests.

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Section: G Services As Microservicesmentioning

confidence: 99%

Section: Microservices and Services In 5g Networkmentioning

confidence: 99%

Section: G Services As Microservicesmentioning

confidence: 99%

Section: G Services As Microservicesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Next generation of microservices for the 5G Service‐Based Architecture

et al. 2020

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Service Function Chaining Design & Implementation Using Network Service Mesh in Kubernetes

Bittar

Wang

Aghasharif

et al. 2022

Supercomputing Frontiers

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Service Function Chaining (SFC) in a cloud-native environment is becoming essential as more users move towards clouds today. Cloud-native environments utilize container-based microservices to provide software solutions. Integrating SFC with container-based microservices introduces new challenges. This paper exploited Network Service Mesh (NSM) framework features to create a service function chain on a multi-node Kubernetes cluster. We focus on the design and implementation of SFC in Kubernetes using NSM. Also, we deployed our custom-built containers in the Kubernetes cluster to create a service function chain. Hence, we demonstrate how an SFC is designed in a cloud-native environment rather than a traditional NFV/SDN approach. Furthermore, to evaluate the performance, we compare different frameworks that support SFC in Kubernetes, highlighting the advantage and disadvantages of each framework.

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