SK 텔레콤의 SDDC 구축및운영 SK 텔레콤종합기술원 주석원매니저 2015 년 6 월 KRnet 2015 0
발표순서 1. ICT 환경변화동향 2. All IT Network 진화방향및구성요소 - Cloud-RAN/Core, SDDC - E2E Orchestration & Virtual Network - Media, IoT 3. SKT의 SDDC 추진전략 - Management Platform (T-ROS) - Software-Defined Networking - Mobile PaaS Platform 4. Summary 1
1. ICT 환경변화동향 Global 경쟁환경 Telcos N/W Device Vendors UX SNS Media Content Health 2013 2014 2015 Wearable Commerce Payment IoT LBS Health Cloud Big Data Hadoop Media Content Enterprise Solution Platform Players Intelligence Commerce Device Robot Media Content Health N/W SoC UX Video LBS Cloud Big Data Hadoop Device SNS Search 2
1. ICT 환경변화동향 ICT Mega Trend 시장, 기술, 환경변화에따라 N/W, IT, Media, IoT 영역에새로운 Paradigm Shift 발생 N/W Mega Trend Media MARKET Cloud / Data Market Hyper-Connected Global Media Service IT TECHNOLOGY Cloud, Big Data, Artificial Intelligence N/W & IT Convergence S/W Defined Everything ENVIRONMENT Energy Security & Safety Wellness IoT/Home 3
1. ICT 환경변화동향 ICT 기술진화 1980 년대 1990 년대 2000 년대 2010 년대 2020 년대 1G 2G 3G 4G 5G 주요 Analog Digital(CDMA), LTE(OFDMA), 1000 배빠른통신방식 기술 Circuit Packet All-IP 시대 All-IT N/W Infra 로진화 인프라, 단말 통신사 Ecosystem 주도 (Motorola, Qualcomm, 삼성, Nokia, Ericsson 등과의협력 ) OTT/Device 업체 Ecosystem 주도 (Apple/Google/ 삼성중심, 중국업체도약 ) N/W & IT Convergence IT Player 의 N/W 시장진입 다양한 IoT 단말보편화 IT 기술 고성능 H/W 및 Proprietary S/W 중심 Cloud, Open Source S/W, 범용 H/W 중심으로이동 Software-Defined Everything Big Data, AI 등 S/W 중심의 지능형 IT 기술진화 4
2. All IT Network 진화방향 All IT Network 으로의진화과정 2G/3G N/W All-IP N/W All-IT N/W IP IP All-IP All-IT 가상화로통합 Mobile Network WCDMA CDMA 3G PS 망 2G/3G CS 망 3G 데이터망 2G/3G 음성망 LTE LTE EPC 망 3G CS 4G LTE EPC 범용 H/W, 오픈소스 S/W, N/W 기술발전 Cloud RAN Cloud Core SDDC Data Center Silo Data Center Cloud Data Center Hyper-Scale Data Center RAN: Radio Access Network, SDCC: Software Defined Data Center 5
2. All IT Network 진화방향 Legacy Network 의한계 Legacy N/W 구성 Legacy N/W 의이슈 Mobile N/W, Media, IoT Media RAN Core IoT N/W 분산된 N/W 자원, 운영복잡도 신규서비스개발 / 수용의시간소요 RU RU EPC IMS DPI PCRF IT Silo 형태의분산된 IT 자원및데이터 시스템용량확장 / 성능개선제약 N/W Functions 제조사 OS CPU, ASIC, DSP N/W Functions 제조사 OS CPU, Storage Cloud Media 대용량 Media Traffic 수용부담 Mobile Media 의품질이슈 IT 인프라 NAT Firewall DNS ADC Server Silo #1 IoT/Home 신규서비스개발 / 수용의시간소요 Internet NAT Firewall DNS ADC Server Silo #2 Sensor/Device 의높은투자단가 RU: Radio Unit, RAN: Radio Access N/W, EPC: Evolved Packet Core, IMS: IP Multimedia Subsystem, DPI: Deep Packet Inspection, PCRF: Policy and Charging Rules Function, NAT: N/W Address Translation, DNS: Domain Name Server, ADC: Application Delivery Controller 6
2. All IT Network 진화방향 Network 진화요구사항 ICT 환경변화의시사점 진화요구사항 1) Biz Enabling Platform Hyper Connected 시대에서 다양한 Vertical 영역에서 ICT 기반 New Biz 발생 S/W 기반진화된 Cloud Infra 위에, IoT, Big Data 등사업영역별요구사항에맞는 N/W 및 Biz Platform 제공 2) Guaranteed & Intelligent Service 서비스別특성에맞는 최적의사용자경험제공 N/W 및 IT 통합인프라에서최적의 Media 서비스 QoE 보장 Web 속도향상및 Context-Aware, Personalized 등 Intelligent Service 제공 IT 기술발전에의한 서비스인프라지능화 / 효율화 3) Smart Infra Operation Commodity H/W, 오픈 S/W 활용으로 TCO 절감하고, 가상화 Infra 의 E2E Mgmt. 및 Analytics 기반 Operation Quality 달성 SDDC: Software Defined Data Center, PaaS: Platform as a Service 7
2. All IT Network 진화방향 To-be Network Image 통합된 All-IT 인프라위에다양한 Vertical Service 가운영되는구조 All-IT N/W 구성 Service Architecture SDDC RU Cloud Mobile N/W Unified Transport Enterprise Logistics RU Cloud Media Home N/W Operational Intelligence IoT Media Gateway Sensor N/W Logistics Farm Virtualized Beacon Stadium Home Programmable Intelligent RU: Radio Unit, RAN: Radio Access N/W, SDDC: Software Defined Data Center 8
2. All IT Network 구성요소 Cloud RAN & Core Edge (Radio Access Network) 및 Core Network 의 Cloud Platform 화 Architecture 핵심솔루션 C-RAN (Cloud-RAN) Mobile Device 인접에서서비스를처리하는 MEC (Mobile Edge Computing) 구현 DNS, CDN, Enterprise용 EPC 등 Core 기능전진배치 C-Core (Cloud-Core) 가상화아키텍처및 Orchestration 개발 (ONOS, OPNFV 등오픈솔루션활용 ) 각서비스특성에맞는 Virtual N/W Slicing 제공 MEC: Mobile Edge Computing, ONOS: Open N/W Operating System, OPNFV: Open Platform N/W Function Virtualization, SLA: Service Level Agreement 9
2. All IT Network 구성요소 Software-Defined Data Center Rack Scale & Open Hardware Platform 기반으로진화 Architecture 핵심솔루션 Workload SDDC Workload PaaS / DevOps Mgmt. Platform / Orchestrator SDC SDN SDS Physical IT Resource RU Workload Physical IT Resource 진화 RUA Networking 장비진화 ONA N/W Operating System C-RAN C-Core Data Center N/W, Disk I/O Compute (CPU/Memory) Storage (HDD/SSD) SDN Controller L2/L3 Firewall IDS/IPS CPU 통신칩셋 GPU Accelerator Enterprise RUA (Rack-scale Unified Architecture) CPU, Memory, Storage 리소스를 Rack Scale 아키텍처기반으로개발 H/W Resource Pool 의고속 Networking 을위한 Silicon Photonics 기술활용 ONA (Open N/W Appliance) 다양한 N/W 서비스를가상화하여 Open H/W 기반으로제공 SDDC N/W 의중앙관리 / 성능향상을 위한 SDN Controller 및 vswitch 개발 SDDC: S/W Defined Data Center, SDC: S/W Defined Computing, SDN: S/W Defined Networking, SDS: S/W Defined Storage, 10
2. All IT Network 구성요소 E2E Operational Intelligence 실시간 Data 분석및 Centralized Control 로인프라운영최적화 Architecture 핵심솔루션 All-IT N/W 통합 Control System C-RAN C-Core IMS 3D Visualization 보안공격 Intuitive UI/UX 통합분석엔진 비정상트래픽 Interactive 입력인터페이스 장애발생 IMS (Integrated Mgmt. System) SDN N/W 의 Flow 기반 Centralized 특성을이용한통합관리구현 장애시 SDN 을활용한트래픽차단 / 우회 / 복사등즉시대응가능 향후 All-IT 통합망전체로확장예상 SDDC Spark (In-stream) THD Tajo (SQL on Hadoop) HDFS THD (T-Hadoop Data Warehouse) Hadoop 기술기반방대한 All-IT 통합망데이터의실시간저장 / 처리 / 분석 RU C-RAN C-Core Data Center Enterprise Legacy 시스템대비통합망의방대한비정형데이터를비용효율적으로처리 IMS THD HDFS: Hadoop Distributed File System 11
2. All IT Network 구성요소 Media UHD 이상의고품질 Media 대응기술 & Mobile 분야에서의차별화추진 Architecture 핵심솔루션 Service STBless Cloud STB Media G/W HTML5 Mobile Broadcast Media 서비스를 Mobile N/W 환경에서 효율적으로전달하기위한 Broadcast 방식 Delivery CDN Interconnection Cloud Media Mobile CDN Fixed CDN Headend 를포함한 Media 인프라 Cloud 化를 통해 Media 생성 / 저장 / 전달체계를통합화 N/W & Infra Mobile N/W Headend Infra Fixed/Home N/W Global CDN Content 전진배치 /Caching 을통한 Media UX 최적화및 Global Service 커버리지확보 Media Gateway @ Home C-RAN Unified Transport C-Core Cloud Media Home Media Gateway Home 내다양한 TV, Mobile Device 를통한 고품질 Content 시청이가능한 Home Hub 12
2. All IT Network 구성요소 IoT Vertical 영역에서의 Time-to-Market 대응을위한 IoT 플랫폼및 Ecosystem 구축 Architecture 핵심솔루션 Vertical Service Cloud IoT Platform 다양한 IoT Service 의수용, 연동 / 확장및 보안지원이용이한 Cloud 기반 IoT 플랫폼 Big Data Intelligence Service Platform IoT Platform Function & Mgmt. Infra Mashup VAS Device Mgmt. IoT PaaS Auth. Security Managed Service DevOps Environment Real-Time Big Data IoT 센서 /Device에서생성되는방대한 Data의실시간수집, 분석등 Intelligence 기능제공 IoT PaaS Platform IoT 서비스를쉽고빠르게개발 / 도입가능하게하는 Cloud 기반개발 / 검증환경 Cloud Infra Sensor N/W & Beacon C-RAN Unified Transport C-Core IoT Cloud Sensor N/W 저전력 / 경량 Sensor N/W 기술및 Sensing/Connectivity 기반 Smart Beacon Beacon 13
3. SKT 의 SDDC 추진전략 오픈소스생태계와산학협업을통한 SDDC Platform 구축 Marketplace S/W Solution S/W Solution S/W Solution S/W Solution Mobile PaaS T-API BaaS IoT PaaS Platform + Public Cloud Hybrid Cloud Private Cloud + + T-RON (Rackscale OpenStack Network) T-ROS (T-RON Operating System) SDC SDN SDS Operation Intelligence Appliance P/F Open Network Bear-metal Open Network Cloud Core Network 14
3. SKT 의 SDDC 추진전략 T-ROS (T-RON Operating System) 데이터센터의모든물리 / 가상자원제어 Video Architecture 개발내역 1 2 T-ROS Operating Environment T-ROS Deployer 3 T-ROS API 1 T-ROS Operating Environment T-ROS 운영자콘솔 - 통합모니터링 & 이벤트관리 - Orchestrator 기능통합 Configuration Automation AMQP (Message Exchange) 4 High-performance Event Bus T-ROS Kernel DBMS (Meta Data) 2 3 T-ROS Deployer 소프트웨어설치및구성자동화 - OS, S/W 설치, Provisioning 자동화 - 물리 / 가상자원 Provisioning T-ROS Open API 제공 T-ROS API - 서비스및자동화개발 API 제공 OpenStack (Core Services) - 통합인증및접근제어개발 API 제공 Glance Keystone Heat Nova Ceilometer Horizon Trove Cinder Swift Neutron 4 T-ROS Kernel T-ROS 핵심기능 - 통합자원관리및제어 - 워크로드스케쥴링, Migration 등 Server Network Storage 오픈소스활용 : Chef, RabbitMQ/ActiveMQ, Vert.X, PostgreSQL, Zabbix, Ganglia, MongoDB, Hadoop 등 15
3. SKT 의 SDDC 추진전략 T-ROS 운영자동화구조 Orchestrator 기반운영프로세스자동화 T-ROS Automation Architecture 개발내역 DevOps Scripts T-ROS Advanced Operating Environment Operation Automation Manager DevOps Process Operation Orchestration Test and Validation DevOps DevOps 프로세스개발및 Tool 지원 - Chef, Ansible 등 DevOps Script 관리 - DevOps 표준프로세스및테스트 Tool - DevOps 운영자동화 Tool Operation Automation API Operation Automation Core T-ROS Orchestrator DevOps Process Mgmt. Bare-metal Provisioning DevOps Job Execution 운영자동화 Event Monitoring & Orchestrator 기반운영프로세스자동화 - Orchestration Workflow 자산관리 - 자동화실행관리시스템 Event Bus T-ROS Agent Node T-ROS Agent Node T-ROS Agent Node Hybrid Cloud VPC & Hybrid Cloud 도입방안연구 - Virtual Private Cloud 와 Hybrid Cloud Network 솔루션, 장비, 정책지원등기술검토및통합방안연구 Data Center Resources 16
3. SKT 의 SDDC 추진전략 T-ROS Operation Model Data Center Operator Users T-ROS AOE REST Service 1 Service 2 REST Data Center 1 Data Center Operator T-ROS AOE T-ROS 운영콘솔및 API 를활용하여 Multi- 데이터센터운영지원 확장가능한 T-ROS API 제공 물리, 가상자원에동일한운영환경제공 AMQP REST T-ROS API T-ROS Kernel Resource Manager OpenStack Cluster Integrated Identity Manager AMQP OpenStack Cluster T-ROS API Message Queue Physical Resource Virtual Resource Logical Data Centers REST + SSL + Trusted Channel (VPN) Expansion Data Center Operator Data Center Operator Data Center Operator T-ROS AOE T-ROS AOE T-ROS AOE T-ROS API T-ROS API T-ROS API T-ROS Kernel T-ROS Kernel T-ROS Kernel Data Center Resource Data Center Resource Data Center Resource Data Center n 17
3. SKT 의 SDDC 추진전략 T-ROS Screen Shots Multi- 데이터센터운영 18
3. SKT 의 SDDC 추진전략 T-ROS Screen Shots OpenStack Horizon 기반의통합된가상자원관리 19
3. SKT 의 SDDC 추진전략 T-ROS Screen Shots Zabbix 기반의통합모니터링 20
3. SKT 의 SDDC 추진전략 T-ROS Screen Shots 미터링 & 빌링 21
3. SKT 의 SDDC 추진전략 Software-Defined Networking 오픈소프트웨어 & 하드웨어기반 SDN 기술개발 Architecture 개발내역 3 Statistics 3D Viz & Mgmt T-ROS Neutron API 1 SONA* SDDC 가상 N/W 관리 - Openflow Controller 와 Neutron Controller 통합관리 1 ARP LB DHCP FW OpenFlow DNS Carrier-Grade SDN Controller 4 (ONOS + Neutron) Neutron OVSDB 2 OVS Enhancement OVS 트래픽가속기 - Lightweight L7 Traffic Handling - Ruby Rapid NIC based H/W Offload 2 Flow Setup/ Monitoring/ Optimization SKT Open vswitch SKT Open vswitch TOR Switch Provisioning & Configuration SKT Open vswitch 3 4 3D Visualization ONOS 3D UI/UX Visualization Tool - SDN 기반데이터취합 / 분석및관리 (Threat, Traffic Increase Detection & Mitigation) Carrier Grade SDN Controller - ONOS Core & Use Case Contribution - ONOS & Baremetal Switch based T-BON (Baremetal Open Network) SONA: Simplified Overlay Network Architecture 22
3. SKT 의 SDDC 추진전략 Simplified Overlay Network Architecture (SONA) Agentless, OpenFlow & OVSDB 기반 ARP, DHCP 등 Broadcast 트래픽제거 Scale-out 가능 Gateway 구현 Logical Switching/Routing 구현 23
L2 Forwarding Throughput (Mpps) 3. SKT 의 SDDC 추진전략 OVS Performance Acceleration OVS 2.4 패킷전송성능가속화솔루션개발 (+ Hardware Offloading) L4-L7 기반의 Packet Handling 및 Use case 개발 14 12 12.2 11.0 T-ROS 10 8 8.4 6.8 6 4 2 0 0.1 Ericsson softswitch 1.04 0.8 OVS OVS-DPDK 6WIND-OVS Link util.: 56% Our number Public number 24
3. SKT 의 SDDC 추진전략 3D Network Visualization Network 에대한 Intuitive 한정보제공 SDN 기반실시간 Network Management 25
3. SKT 의 SDDC 추진전략 Open Network Operating System (ONOS) Joint Work to Develop Carrier-Grade SDN Controller (ON.Lab) - High Performance: 1M flow/second - High Availability: 99.99% - Scalability: 1TB network state data Distributed Core Architecture Southbound Abstraction Northbound Abstraction (Intent Framework) Apps Global ONOS Network View / State high throughput low latency consistency high availabilit y 26
3. SKT 의 SDDC 추진전략 Mobile PaaS Platform Mobile 중심 PaaS Platform, Telco Asset 기반 Open API 제공 Architecture 개발내역 T-Fabric Dev Portal T-Fabric 플랫폼구축 어플리케이션구동환경제공 - 운영자 / 사용자 Portal, PaaS 자원관리 T-API Run-Time, DevOps Env. Geo-fence WebRTC Biz Smart Push Docker WEB/WAS RDBMS Hadoop DW SQL on Hadoop IoT Service Dev. Framework Continuous Deployment Telco 차별화 기능개발 Telco 서비스연동및차별화기능개발 - T-API 제공 (Mobile User Stats, Traffic Analysis, WebRTC, LBS, etc.) T-AR Voice Recog. Payment Mobile Framework (MEAN stack) Continuous Integration Agile Environment DevOps 개발환경 어플리케이션 DevOps 개발환경제공 - Continuous Integration/Deployment 개발환경제공 - Agile 개발 Tool 제공 Platform 미터링 / 과금 사용자관리 개발관리 배포관리 Runtime IaaS 연동 Big Data 솔루션연계 Hadoop DW 솔루션연동및 PaaS 개발 - Hadoop DW 서비스연동 - SQL on Hadoop 서비스연동 27
3. SKT 의 SDDC 추진전략 Open Innovation Ecosystem Telco Asset 을활용한 Open API & 개발환경제공 dpaas 가상 Server BaaS Customer Management Data Management File Storage Push Notification T-Fabric mpaas T-API QA & Testing 상품화 Geo-Fence Traffic Analysis Mobile Payment 28
4. Summary 5G 네트워크는빠른속도뿐아니라 Smart & Flexible Network Service Platform 이될것임 이를위해서 Open Source S/W 와 H/W 를이용하여 Software- Defined Infrastructure 를구성하는것이 Key Issue SK telecom 은 Open Source 기반 SDDC 와 SDN 기술개발에많은노력을기울이고있음 Early result: T-ROS v.1; Coming Soon! T-ROS v.2, SONA, mpaas 29
감사합니다! swjoo21@sk.com 30