Network Function Virtualization - Telkomsel Perspective (SDN NFV Day ITB 2016)
-
Upload
sdnrg-itb -
Category
Technology
-
view
3.081 -
download
5
Transcript of Network Function Virtualization - Telkomsel Perspective (SDN NFV Day ITB 2016)
1 CONFIDENTIAL– INTERNALUSEONLY
NFVITBDayBandungMarch21st,2016
NetworkFunctionVirtualization(NFV)TelcoPerspective
C.G.GustianaGMStrategicTechnologyPlanning,Telkomsel
|TELKOMSEL - Confidential
Key
Mes
sage
sNFV in a nutshell, trend in the industry
How the others are doing, describing various deploymentstrategies, benchmark, case studies that possible to be done oradopted by the CSP
1
3
Today’s Agenda
The Values that NFV bring, main drivers for CSP/Telcos to adopt or acquired NFV technology
2
Telkomsel’s NFV insight, some introduction, overview, sneakpeak on how Telkomsel doing this NFV, future possibilities for localindustry or developer, etc
4
3
Network Function Virtualization (NFV) definition :
Leveraging standard IT virtualization technology to consolidate many network equipment types to reduce cost and improve flexibility, operability, and maintainability – ETSI NFV ISG
§ Vendor agnostic§ CAPEX and OPEX optimization§ Common hardware (COTS) support§ New service creation capability increased§ Multi tenancy support§ Self provisioning and orchestration support§ More flexible and simplify network
architecture§ Fast time to market§ Hypervisor needed and specific management
system§ Resource pooling (compute, storage,
network) for any function
characteristics:
NFV Approach, from Legacy & Vendor Specific to Standardize & Commodity Hardware
SOURCES: ETSI NFV ISG White Paper
4
Main Difference betwween Legacy vs NFV Deployment
§ Procure New Hardware (Dedicated /proprietary for specific network function, usually take long time on delivery, Hardware reuse is impossible, especially for different vendor)
§ Finding Space and Power required§ Install Hardware§ Commissioning, Integrate, Operate§ Redo the whole process for the other or
new network function
Serial & Iterative Process
§ One hardware (x86 COTS) can be used by several network function
§ Hardware procurement and delivery is faster, since the hardware is a common commodity
§ Procure Hardware, Finding Space & Power, Installation, Commissioning, only needed to be done at the initial deployment
§ All Network Function is only software based and can be Install remotely and parallely
§ Fail fast support to achieve faster time-to-market
Parallel ProcessVs
5
The main architectural constituents of the NFV Architectural Framework are :
§ The NFVI (Network Functions Virtualization Infrastructure), which provides the virtual resources required to support the execution of the Virtualized Network Functions. It includes Commercial-Off-The-Shelf (COTS) hardware, accelerator components where necessary, and a software layer which virtualizes and abstracts the underlying hardware
§ The VNF (Virtualized Network Function) is the software implementation of a network function which is capable of running over the NFVI. The VNF is the entity corresponding to today’s network nodes, which are now expected to be delivered as pure software free from hardware dependency.
§ The NFV M&O (Management and Orchestration), which covers the orchestration and lifecycle management of physical and/or software resources that support the infrastructure virtualization, and the lifecycle management of VNFs. NFV Management and Orchestration focuses on the virtualization-specific management tasks necessary in the NFV framework. The NFV M&O also interacts with the (NFV external) OSS/BSS landscape, which allows NFV to be integrated into an already existing network-wide management landscape
NFV ETSI ISG Architectural Framework
SOURCES: ETSI NFV ISG White Paper
6
NFV ETSI ISG Use Cases Reference
§ Switching elements: BNG, CG-NAT, routers.§ Mobile network nodes: HLR/HSS, MME,
SGSN, GGSN/PDN-GW, RNC, Node B, eNode B.
§ Functions contained in home routers and set top boxes to create virtualised home environments.
§ Tunnelling gateway elements: IPSec/SSL VPN gateways.
§ Traffic analysis: DPI, QoE measurement.§ Service Assurance, SLA monitoring, Test
and Diagnostics.§ NGN signalling: SBCs, IMS.§ Converged and network-wide functions: AAA
servers, policy control and charging platforms.
§ Application-level optimisation: CDNs, Cache Servers, Load Balancers, Application Accelerators.
§ Security functions: Firewalls, virus scanners, intrusion detection systems, spam protection..
Network Functions Virtualization is applicable to any data plane packet processing and control plane function in mobile and fixed networks. Potential examples that can be listed include (not in any particular order):
SOURCES: ETSI NFV ISG White Paper
7 SOURCES: Infonetics ServiceProviderNFVSurvey,2015
§ There is no clear correlation between criticality of Network Function with operator decision on which NF going to be transformed into NFV first
Mobile Core, vEPCcompared with vIMSCore, .. Which one is the most critical NF ?
BasedonInfonetics SurveyOperators Adoption on NFV Use Cases
8
Main Driver for Telco operators going into NFV
What happen online in 60 seconds?
Smart phones drive the massive traffic of data, putting huge strain to
the CSP’s network infrastructures
SOURCES: Cisco VNI Mobile 2014, Internal Analysis
Costs for addressing data traffic growth is getting higher, while the
data revenues declines
§ CostdominatedbyDatausage§ Newservicesdemandincrease
9
Values and Benefits that NFV Bring to the Industry
ReduceCapitalExpenditures(CAPEX)§ Reduce hardware cost using COTS / commodity servers§ Service delivered in software, no dependency on vendor hardware
(price will be decreased)
ReduceOperationalExpenditures(OPEX)§ Quick and easy to move and scale the functionality, eliminate to deploy
and maintain specialized hardware for specialized functions.§ Reduce space, power and cooling costs§ Automation can be used to simplify roll out and ongoing management.
AccelerateTime-to-Market
DeliverAgilityandFlexibility§ Able to easily move, scale, and configure services as the demands of
customers or the business changes.§ Operator doesn’t have to buy a new server / hardware system every new
service with small scale needed.
§ Simple installation and provisioning to quickly deploy services§ Virtualized function enable easiness of conducting trial, segregation with
production can minimize the potential of risk.
TechnologyTrends§ Legacy vendors are starting to look into NFV technology.§ Several operators in the world already conducted trial and RFP.§ The rise of software-based company that develop NFV enrich the NFV
vendor options.§ Based on research done by Infonetics NFV widespread commercial
deployments will start from Y2016
SOURCES: ETSI, sdxcentral, Internal Analysis
10
IT Cloud vs Network Cloud NFV Requirements
Enterprise (IT) Carrier (Network)
VirtualizationLayer
Oracle,CRM,Exchange
SAP,CRM,HRIS
COTSHardware
VirtualizationLayer
GGSN,SGSN EPC,IMS
COTSHardware
§ SLA 99.95% – 99.99 %§ Focus on the compute
and storage capacity§ Most application running
in light load§ Simple network
connection (internet and intranet)
§ No large flow between VMs
§ No strict requirement on the network latency and QoS
§ SLA 99.999%§ Focus on the compute
and networking capacity§ Most application running
in heavy load§ Complex network
connection (signaling, Media, OM)
§ Large flow between VMs
§ Strict requirement on the network latency and QoS
vs
SOURCES: ETSI, sdxcentral, Cisco, Internal Analysis
Operators General NFV Requirements
11
Posible NFV Implementation or Deployment Scenarios
SOURCES: ETSI, Cisco, Internal Analysis
VNFCaseSpecific,e.g.
vMS,VPCOrchestrationLed
InfrastructureLed
VNFLed
• Cloudify &AutomateDCInfra• LeverageOpensource• Virtualize,Programmable&Provisionable
• ServiceElasticity• EaseofProvisioning;Timetomarket
• Servicedrivenapproach• ServiceAgility• Businessoutcomedesired
IncludesVNF-MandNFVOrchestrator
Compute,Network&SDNController,Storage,VIM(OpenStack)&Automation
OrchestrationLed
InfrastructureledapproachakaNFVIisgaining
prominence!
Integrating multiple virtual appliances from different vendors. Network operators need to be able to “mix & match” hardware from different vendors, hypervisors from different vendors and virtual appliances from different vendors without incurring significant integration costs and avoiding lock-in.
Challenges that needs to be answered by the SPs
12
Posible NFV Migration Scenarios
SOURCES: Ericsson, NFV Strategy Rec. for Tsel
Scrap & Grow, retire legacy network and start fresh with NFV
Grow & Grow, co-exist between legacy and NFV, decision based on cost-based analysis to find best match between technology availability, performance and operation cost
Cap & Grow, limit legacy network until hardware retired, grow with NFV and slowly transform legacy network to NFV on new capacity expansion.
Slice & Grow, start NFV with network slicing for specific need and slowly migrating legacy slice to new NFV slice
CostEfficient
LessComplex Operation
Time to New
Revenue
13
Operators Adoption Positioning and Time Line
SOURCES: NFV/SDNTelecomMarketLandscape,TechnicalBusinessResearch,Oct.2015
RateofAdoption
Strategic
Importance
Low
High
High
Telefonica
SKTelecom
BT
KPNKT
VodafoneTelenor
DTNTT
AT&T
CenturyLink
VerizonKDDI
OrangeChinaTelecomChinaMobile
Etisalat
ChinaUnicom
Bharti
Tier-2Operators
Singtel Telstra
SoftBank
PlanningStage
Mainstream
EarlyAdapter
Source:SDNandNFVVendorLeadership/GlobalServiceProviderSurvey,
Infonetics,Aug.2015NFV/SDNTelecomMarketLandscape,
TechnicalBusinessResearch,Oct.2015CiscoServiceProvidersSurvey,Nov2015
2014 20202013 2015~ 2016
POCs• Operators,
vendorslearninlab
• Fewfieldtrials
FieldTrials• VendorsproductizeNFV/SDNsoftwareinoperatorlabtrials• Afewmorefieldtrials• ~ 10Commercialdeployments
EarlyCommercialDeployments• Manyoperatorsdeploy1or2
usecases• ~ 15morecommercial
deployments
Wider-spreadCommercialDeployments• MainstreamAdoption• OperatorsdeployseveralNFV/SDNuse
cases,thenmoreeachyear
2022
LateMajority
14
Global NFV Implementation Use CasesVirtual EPC Deployment§ NTT Do Como Inc. first announced for a commercial launch of NFV back in May
2014§ 70% of the whole network will be virtualized by 2018§ The solution is provided by Vmware, Fujitsu and NEC
Deployed program called “UNICA” for IoT and M2M Project
Core Network Modernization based on NFV§ By August 20th, 2014, Vodafone VHA has chosen Ericsson to replace and
upgrade complete national core network§ The upgrade include such as EPC, IMS, policy control and MSS circuit core
Network (2016)
§ 30% of the infrastructure has been virtualized and continue until 2023§ Some vendors like Huawei, ALU, Ericsson, NSN, NEC, Vmware and Red Hat
KVM are collaborating in this initiative§ Optimize its network to build services around IoT and M2M
Signaling based on NFV§ Vodafone Germany has implemented signaling control including SS7 and
Diameter into single platform based on NFV, in early January 2015§ the solution is provided by Netnumber and VMWare§ Source : http://www.lightreading.com/spit-(service-provider-it)/diameter-routing-
signaling/netnumber-decrees-the-end-of-signaling-silos/d/d-id/712972
SOURCES: various vendors and public analysis
Deployed program called “Domain 2.0”§ calls for the company to virtualize more than 75 percent of its network using
software-driven architecture by 2020
15
Typical or Generic SPs Adoption Scenario on NFV are Aligned with Future Network Architecture Requirements for 5G
SOURCES: ETSI, sdxcentral, Internal Analysis
LegacyEPC
LegacySignaling
MME SPGW
DRA STP
LegacyCSCore
MSS MGW
VirtualizedSTP,IMS,EPC
XXXIMS EPC
VirtualizationPlatform(NFV)
GenericPlatform(COTS)
Scalability&Flexibility
NetworkExtension
STP IMS MSS MME
SPGWDRA HSS GiLAN
NFVOrchestratorDynamicresourcecontrol
Automation
NFVEnhancement
SDNacrossDC CloudTelcoSDN
BusinessExtension
NFVEvolvedDistributed
Serviceoptimized
CoreNetwork
RadioAccessNetwork
3G4G
5G
Today Future
Future services and business require network to have scalability, agility, flexibility and faster time deployment. Corenetwork evolution is needed to meet the services and business requirement.
16
Telkomsel Insight, Virtualization Experience ... A Miles away toward NFV
IT Virtualization Architecture
Telkomsel IT Group has been using virtualizationtechnology since Y2008, started from VMware 4.1. Thebasic reasons of virtualization implementation are:§ The operational easiness (install new server and
service) which resulting faster time-to-market.§ Cost efficiency, since several small applications can be
installed in the same physical hardware, separated bydifferent virtual machines. Space, power, cooling usagealso reduced.
Hardware
Using Intel Architecture x86 COTS server. Brand usage are : Dell, Fujitsu, HP, IBM
Hypervisor
Using only VMware ESXi as the hypervisor / virtual infrastructure.
Operating System
Various operating system used as the foundation of an application. e.g : Windows, Linux, FreeBSD
Applications
Application type are from the small scale to the enterprise level. e.g : web server, tcash, smsbulk, microsoft exchange, active directory.
except/exclude : OCS, CRM, OSDSS, Oracle
17
Telkomsel Encourage Openness, Welcoming wide variety of eco-system and players including Academia ..
Virtual compute
Industry groupofCommunication ServiceProviders(CSPs)andNetworkEquipmentProviders (NEPs)tospecifyNFV
business/functionalrequirements andtheinterfaces
necessarytosupport them
Opensource softwaresuiteforcloud computing
Integration project undertheLinux Foundationtocreateacarrier-ready NFVReferencePlatform (anIaaSplatform)
outofopen-sourcecomponents.
Openplatform fornetworkprogrammability forSDN
User-driven organizationdedicated tothepromotion
andadoptionofSDNthrough openstandards
development
§ Reducing vendor lock-in§ Community development brings a higher feature
velocity§ Cost efficient leads to TCO savings§ Flexibility and freedom§ Interoperability
Opensource NFV Platform
Enables a wide variety of eco-systems and encourages openness. It opens the virtual appliance market to pure software entrants, small players and academia, encouraging more innovation to bring new services and new revenue streams quickly at much lower risk
Benefits that can be achieved by the industry
Virtual storage
Virtual network
Virtual Infrastructure Manager (VIM)
DPDK
18