Preparing your Business for Virtualization

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1 Preparing your Business for Virtualization Pierre Lavillat NFV Director Program Manager - HPE 2018 TM Forum 1

2 Future Network will be virtualized Classic Appliance Approach Virtualization Approach Message router CDN Session border controller Software Network Functions Intrusion-prevention system Firewall Carrier-grade NAT Transition Virtualization SGSN/GGSN PE router BRAS Common Compute, Storage and Networking Resources WAN acceleration RNC Tester/QoE monitor NFV is an essential component of the digital transformation 2018 TM Forum 2

3 However the road to Virtualization is not simple Classic Appliance Approach Virtualization Approach Message router Software Network Functions Intrusion-prevention system Virtualization SGSN/GGSN Common Compute, Storage and Networking Resources WAN acceleration 2018 TM Forum 3

4 Virtualized services require complex combinations Across different and continuously evolving VNFs, VIM and SDN layers Service layer vepc vims SD- WAN. VNFs layer E/// Huawei Nokia F5 Cisco VIM/SDN layer Intel EPA Open stack Nuage VMware Docker 2018 TM Forum 4

5 Different lifecycles for different layers To keep the network under control Service lifecycle Virtual Machine lifecycle from CloudStack Virtual Network Function lifecycle from ETSI Services, VNFs and Infrastructure evolve at uncoordinated speed Current industry standards do not guarantee that a version change in Infrastructure and/or VNF will not affect higher level Services However separation of layers is key to agility and cost savings 2018 TM Forum 5

6 Virtualization success factors Make agility a reality! Service layer Services chained in a flexible way Intent based Integration with existing OSS/IT VNF layer VNF catalog/marketplace Information package for easy deployment & management Catalog integrated in a CI/CD chain for versioning VIM/SDN layer Composable infrastructure on standard hardware Carrier grade: in-service upgrades, secure, fault tolerant Infrastructure auto-discovery 2018 TM Forum 6

7 Why a composable infrastructure? VIM/SDN layer Requirement Challenges Strategy Standard HW & Software based to avoid vendor lock-in Carrier grade performance and availability Future proof to allow smooth technology evolution VIM/SDN compatibility between Openstack & VMware, Virtual Machines & Containers, SDN controllers Security enforcement for large and distributed environment In Service upgrades Adopt standard and proven technology and software Use Discovery and reconciliation from NFVO layer to adapt to existing VIM/SDN layer Use multi-site capabilities to allow smooth upgrades 2018 TM Forum 7

8 Why a VNF catalog / marketplace? VNF layer Requirement Challenges Strategy VNFs should be cloud agnostic : not aware of underlying VIM/SDN implementation choices VNF vendors should populate the catalog as much as possible VNF maturity and lack of modeling standard makes on boarding long and difficult VNF version change and infrastructure evolution requires new and strong CI/CD process VNF vendors are slow to adapt to new standards and technologies Define a minimum set of requirements to accept a VNF from a vendor VNF testing and validation should be automated 2018 TM Forum 8

9 Why a VNF catalog / marketplace? Service layer Requirement Challenges Strategy Services should be built from standard VNFs from the catalog to avoid vendor lock-in and reduce costs Services should be chained in a flexible way Services should be modeled in a VNF agnostic way: not aware of vendor implementation choices and VNF versions Lack of Network Service modeling standard and no consensus in the industry yet Traditional workflow approaches introduce exponential complexity Network services require frequent updates NFVI/VNFs not ready to deploy Network Services Use Intent Based modeling to reduce complexity Consider adopting a true Agile methodology across different organizations Introduce CI/CD chain as early as possible 2018 TM Forum 9

10 Conclusion Key findings and recommendations Many operators have already deployed Telco Clouds VNFs are today often deployed manually and will have to be adopted by NFVO later Standards are becoming more mature and VNFs more cloud ready Agile methodology with CI/CD is critical to success Do not wait until all questions are answered Many virtualization pioneers already realize cost saving and greater agility 2018 TM Forum 10

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