IBC Contela

SDN/NFV 기반의 분산구조 EPC 시스템 I. 기술개발배경 II. EPC 소개 III. SDN/NFV 기반의분산구조 EPC - sepc Architecture - sepc Functional Architecture - Performance 이슈 - Call Flow 정의 - 시험환경 IV. Use Cases V. 회사소개 콘텔라 유근출 [kcyoo@contela.com]

sepc (smart SDNFV EPC) I. 기술개발배경 1. AS-IS EPC 시스템의한계 2. 외산 / 대기업중심의 EPC 시장 3. IoT 서비스의활성화 4. Local LTE Network의수요증가 5. 5G Core Network의등장 1/31

1. 현재 EPC 시스템의한계 I. 기술개발배경 * P-GW 로 Traffic 이집중되는계층적구조 * Data 와 Control Plane 의결합으로인한경직된구조 * 새로운 Traffic 특성 (IoT/M2M) 에적합하지않은구조 * 고가의전용 H/W 사용으로벤더의의존성이높음 * 벤더장비별로상이한 config I/F 로인해낮은운용편의성 EPC 의계층적구조 epdg S-GW S-GW P-GW Internet IMS 2/31

2. 외산 / 대기업중심의 EPC 시장 I. 기술개발배경 * 전체 LTE 트래픽은 125,565TB, 1 인당 LTE 트래픽은 3.31GB * 124 개국 360 개사업자를통해, 3,6 억명이 LTE 를사용중 ( 전체 Mobile Connection 의 5.3%, 2014 년 3Q 기준, * 국내 EPC 시장규모 ( 추정 ) MME: 50 대 SGW: 50 대 P-GW: 80 대 3,600 억추산 삼성, ELG, 시스코만참여하는 과점시장 * EPC 시장은매해 37% 씩성장 * 그러나글로벌 Top5 업체가시장점유율 80% 정도를차지 [Source : 미래창조과학부통계 (2015)] [Source : www.gsacom.com, NIPA, Gartner] 3/31

3. IoT 서비스의활성화 I. 기술개발배경 * 이동통신의발전으로새로운 IoT 서비스가나오거나, 기존유선통신기반서비스를이동통신으로대체하며 다양한신규이동통신망기반 IoT 단말이등장 [ 단위 : 만대 ] [ PoS 단말기 ] [ 원격검침기 ] [ 차량용위치추적기 ] [ LTE 블랙박스 ] [ 웨어러블디바이스 ] [ 고정형 PoS ] [ ATM ] [ LTE CCTV ] [ Connected Car] [Source : 미래창조과학부통계 (2015)] 4/31

4. 로컬 LTE 네트워크에대한수요증가 I. 기술개발배경 PS-LTE: 정부재난안전통신망구축사업 (LTE 700MHz 대역, 20MHz 대역폭 ) * 모바일오피스의활성화에대한보안대책은, MDM, 모바일가상화, 컨테이너화등 Application 솔루션만존재. 기술방식선정 준비단계 ( 14) 시범단계 ( 15) 확산단계 ( 16) 완성단계 ( 17) ( 미래부 ) ( 안행부 ) ( 안행부 ) ( 안행부 ) ( 안행부 ) 기술방식주파수지원 ISP 수립 강원 8 개시도 ( 경북, 전북, 충남등 ) 서울, 경기, 6 대광역시 LTE-R: 철도전용통합무선망 철도전용통합무선망 (LTE-R) 이올해부터본격상용화된다. LTE-R 는한국철도기술연구원이주축이돼 * 직원용단말과 IoT 단말까지수용하는근원적네트워크솔루션으로기업용로컬 LTE 네트워크에대한수요가증가하며글로벌시장에서는제품출시중 elte TICN: 군차세대정보통신체계 공군이롱텀에볼루션 (LTE) 기반독자무선네트워크체계를구축한다. 노후화된기존주파수공용통신 [Source : 디지털데일리 (2013)] 5/31

5. 5G 등장 I. 기술개발배경 * 전세계적으로 5G 선행기술연구개발과표준화를위한협력이활발하지만, 5G 기술표준화는초기개발단계 * 5G Core Network 관련해서는 SDN/NFV Forum 등에서 Requirement 정의등진행중에있다. 고용량 초고용량미디어컨텐츠수용을위한용량증대 네트워크용량 1,000 배증가 ( 최대 50Gbps ~ 100Gbps) 저지연 초실시간성서비스를위한네트워크지연시간최소화 지연시간 1,000배단축 안정성 장소 / 시간에상관없이균일하고안정적품질의서비스제공 Anytime, Anywhere 다중연결성 IoE 제공을위한대규모디바이스수용 1,000배이상의디바이스연결성제공 유연성 / 경제성 확장 / 운용 / 변경 / 진화가용이한저비용인프라 데이터전송비용 1,000배절감 에너지효율 환경에너지친화적인프라 에너지효율 1,000배개선 네트워크기능가상화 (NFV), 소프트웨어정의네트워킹 (SDN) 구조도입으로 IT 기반무선망을혁신 [Source : KT] 6/31

sepc (smart SDNFV EPC) II. EPC 소개 1. EPC 의 Architecture 2. 주요 NE 기능 7/31

1. EPC Reference Architecture II. EPC 소개 S12 SGSN EIR S13 HSS S6a (Diameter) S13 S3 (GTP) S4 (GTP) S9 SPR Sp (Diameter) OCS Gy (Diameter) OFCS Gz (GTP ) S1-MME S10 MME S11 Gxc PCRF Rx Gx (Diameter) IMS Operator s IP Services UE LTE-Uu enb enb X2 (GTP-U/X2-AP) S1-U (GTP-U) S-GW S5(S8) (GTP-U/C) Gxb P-GW S2b SGi (IP) PDN enb epdg EPS(Evolved Packet System) = E-UTRAN(LTE) + EPC(Evolved Packet Core) SWn Wi-Fi SWu UE (Un)Trusted Non-3GPP IP Access * E-UTRAN: Evolved UTRAN * UTRAN: UMTS Terrestrial Radio Access network * UMTS: Universal Mobile Telecommunication System 8/31

2. 주요 NE 기능 - MME II. EPC 소개 MME 주요기능 Attach Bearer Management Detach Authentication NAS Signaling Security Update Location Tracking Area Update Service Request X2/S1 Handover P-GW & S-GW Selection ID & Data Management 9/31

2. 주요 NE 기능 S/P GW II. EPC 소개 S-GW 주요기능 Inter-eNodeB Local Mobility Anchor point Inter-3GPP mobility anchoring point Initiation of network triggered service request & Downlink packet buffering Packet routing and forwarding P-GW 주요기능 Per-user based packet filtering UE IP address allocation Transport level packet marking in the uplink and downlink UL and DL service level gating control Service date flow level rate enforcement EPC bearer level rate enforcement Charging & Inter-operator charging Packet screening end marker Sending (S-GW HO) 10/31

2. 주요 NE 기능 epdg / PCRF II. EPC 소개 epdg 주요기능 IP Address delivering Packet Routing P-GW and UE IPsec de-capsulation/encapsulation IKEv2 signaling 를통한인증 PCRF (Policy and charging rule function) AF (Application Function) 에서서비스관련정보수신 SPR (Subscription Profile Repository) 에서가입자정보수신 가입자 / 서비스에따른 QoS 와과금정책정보제공 P-GW(PCEF) 에 Policy(QoS) 와 Charging Rule 제공 11/31

2. 주요 NE 기능 HSS II. EPC 소개 HSS 주요기능 Subscriber Information management IMSI, MSISDN, UE-STATUS, MME-ID, Network-Access-Mode, etc User Profile Information management ODB, Subscriber-Status, etc Location Information management E-CGI, TAI, etc Subscriber Security Information management 12/31

2. 주요 NE 기능 Call Flow 예시 (attach) II. EPC 소개 Attach Flow RRC Connection S1 Connection 상호인증및 Security Setup 가입자위치등록및가입정보취득 EPS Session 설정 사업자과금 /QoS 정책적용 EPS Bearer 설정 13/31

sepc (smart SDNFV EPC) III. SDN/NFV 기반의분산구조 EPC 1. sepc Architecture 2. sepc Functional Architecture 3. Performance 이슈 4. Call Flow 정의 5. 시험환경 14/31

1. sepc Architecture III. SDN/NFV 기반의분산구조 EPC sepc : smart SDNFV EPC SGSN S12 S9 Gy (Diameter) Gz (GTP ) OCS OFCS EIR S13 HSS S6a (Diameter) S3 (GTP) S4 (GTP) Gxc PCRF Gx (Diameter) Gxb UE LTE-Uu enb X2 (GTP-U/X2-AP) enb S1-MME S1-U (GTP-U) Application Layer MME S11 Network Information S10 Network Control Network Control Layer MGM Data Plane I/F (Open Mobile) Infrastructure S-MGW Layer S-GW S5(S8) (GTP-U) Cloud-C S5/S8 P-GW (GTP-C) NorthBound I/F (Application Control I/F) SouthBound I/F (Resource Control I/F) P-MGW SGi (IP) epdg S2b ep-mgw (GTP-U) SWn IKE IPsec SWu Wi-Fi UE sepc : smart SDNFV EPC MCA : Mobile Control Application MCC : Mobile Core Controller (MGM : Mobile Gateway Manager) Cloud-C : Cloud Controller MGW : Mobile Gateway PDN Internet IMS Operator s IP Services 15/31

1. sepc Architecture III. SDN/NFV 기반의분산구조 EPC sepc : smart SDNFV EPC MME Application Layer MME S11 S-GW MME S-GW Control Plane P-GW Control Plane epdg Control Plane S-GW Control Plane Data Plane NorthBound I/F (Application Control I/F) Control Plane SDN Concept Network Control Layer MGM Cloud-C NFV Concept Mobile Core Controller P-GW Data Plane Data Plane I/F (Open Flow+@ = Open Mobile) epdg Control Plane Data Plane Infrastructure S-MGW Layer S5(S8) (GTP-U) S-GW Data Plane P-GW Data Plane epdg Data Plane sepc : smart SDNFV EPC MCA : Mobile Control Application MCC : Mobile Core Controller MGW : Mobile Gateway 16/31

2. EPC Functional Architecture -1 III. SDN/NFV 기반의분산구조 EPC Functional Architecture Other EPC Nodes HSS PCRF AAA Diameter (S6a) Diameter (Gx) Diameter (SWm) Operator UE enodeb : Control Plane : Data Plane : Cloud Control : OpenMobile GTP-U/X2AP (X2) S1-AP (S1-MME) MME Function S-GW Control Function Northbound API Agent P-GW Control Function Northbound API Agent epdg Control Function Northbound API Agent VM VM VM VM VM Network View Sync Virtual Switch Virtual Switch Northbound Control API Mobile GW Controller (Southbound Control API) Open Mobile Compute Control Network Control Open Mobile Agent Orchestrator epdg Data Plane Function VM Storage Control Application Control IKE IPSec UE UE WiFi LTE-Uu Virtual Switch DPDK UE LTE enodeb GTP-U (S1-U) Open Mobile Open Mobile GTP-U S-GW Data Plane Function VM Virtual Switch Open Mobile Agent DPDK GTP-U (S5) SDN Switch (Openflow) Open Mobile Agent P-GW Data Plane Function VM Virtual Switch DPDK IP(SGi) SDN Switch (Openflow) PDN 17/31

2. EPC Functional Architecture-2 III. SDN/NFV 기반의분산구조 EPC sepc : smart SDNFV EPC SDN/NFV Conceptual Archtecture Mobile Core Network Architecture Application Layer MME S11 Network Information S10 Network Control Network/Cloud Control Layer MGM Control Data Plane I/F (Open flow/open Mobile) Infrastructure S-MGWLayer S-GW S5(S8) (GTP-U) S5/S8 P-GW (GTP-C) NorthBound I/F (Application Control I/F) Cloud-C SouthBound I/F (Resource Control I/F) P-MGW UE epdg S2b ep-mgw (GTP-U) EIR LTE-Uu X2 (GTP-U/X2-AP) HSS S6a (Diameter) enb enb S13 S1-MME S1-U (GTP-U) S10 MME MME DB Shard Disk SGSN S3 (GTP) sepc : smart SDNFV EPC MME : Mobility Management Entity : Active/Standby SGW-C : Serving Gateway for Control Plane PGW-C : PDN Gateway for Control Plane MCC : Gateway Controller SGW-D : Serving Gateway for Data Plane PGW-D : PDN Gateway for Data Plane HSS : Home Subscriber Server EIR : Equipment Identity Register S4 (GTP) S11 DB DB SGW-D SGW-D (VNF) S12 SGW-C SGW-C S5(S8) (GTP-U) OFCS Gz (GTP ) EMS EM S PCRF Gx S5/S8 (GTP-C) Gz (GTP ) PGW-C PGW-C NorthBound I/F S6b z MCC MCC SouthBound I/F PGW-D PGW-D (VNF) Gy SGi(IP) OCS AAA Orchestrator Compute Control Storage Control Network Control Application Control OFCS : OFfline Charging System OCS : Online Charging System PCRF : Policy and Charging Rule Function SGSN : Service GPRS Support Node UTRAN : Universal Terrestrial Radio Access Network E-UTRAN : Evolved-UTRAN GERAN : GPRS Edge Radio Access Network Operator IMS Operator s IP PDN Services Internet 18/31

3. Performance Issues III. SDN/NFV 기반의분산구조 EPC Data Plane Performance Considerations NIC 기반의 Packet Acceleration Data Plane 에대한성능개선및 Signaling 에대한성능 bottleneck 개선 NIC 비용증가 Hypervisor 지원 roadmap 느림 Intel DPDK 기반의 Packet Acceleration Host 기반및 NFV 기반의 DPDK 로구성 Intel NIC 사용 상용유지보수문제 19/31

UE 가 Target 으로이동 Forward Bearer Expiry Timer 설정 Forward Bearer Expiry Timer 설정 4. Call Flow 정의 III. SDN/NFV 기반의분산구조 EPC sepc Call Flow & Key Flow 정의 Authentication, Security & Location management Session Management, QoS & Interaction with PCC X2, S1 Handover Flow 정의 sepc Key Flow with SB/NB 1. Authentication/Security 2. Tracking Area Update 3. Service Request (UE Triggered) 4. Service Request (Network Triggered) 5. S1 Release 6. UE-initiated Detach procedure E-UTRAN 7. MME-initiated Detach procedure 8. HSS-initiated Detach procedure 1. Dedicated Bearer activation 2. Bearer modification with bearer QoS update 3. HSS initiated Subscribed QoS Modification 4. Bearer modification without bearer QoS update 5. PDN GW initiated bearer deactivation 6. MME Initiated Dedicated Bearer Deactivation 7. UE requested bearer resource modification 1. X2 handover (without SGCP relocation) 2. X2 handover (with SGCP relocation) 3. S1 handover(target enb- SGDP S1 Bearer 생성 ) 4. S1 handover(target enb-src enb Indirect 터널생성 ) 5. S1 handover(path Switching1) 6. S1 handover(path Switching2) 7. S1 handover(indirect Tunnel Release) 1. DP Initial Bootup 2. Attach from UE 3. Detach from UE 4. Detach from MME 5. S1 Release by UE Inactivity 6. Network Triggered Service Req 7. Statistics for Charging 8. Event for Charging 9. Notification for RESMGR enb MME [1]:NAS: Attach Request SGCP PGCP MCC HSS PCRF enb MME SGCP PGCP MCC SGDP PGDP PCRF HSS [1]:Insert Subscriber data(qci, ARP, UE-AMBR, APN-AMBR) Source Target Source Target Source Target enb enb MME MME SGCP SGCP [24]:S1AP: Handover Command (E-RAB ID, Source SGDP Forward IP/TEID) PGCP MCC Source SGDP Target SGDP PGDP enb MME SG-CP PG-CP MCC SG-DP PG-DP [2]:Authentication / Security [3]:Update Location PGDP [4]:S11: Create Session Request (IMSI, EPS Bearer ID, APN, PGCP IP, Subscribed QoS Profile (QCI, ARP, APN-AMBR), E-CGI, TAI) SGDP S1/S5 SGDP IP/TEID 할당 [5]:API: Create Session Request (IMSI, EPS Bearer ID, QoS) [6]:Open Mobile: Create Session Request (IMSI, EPS Bearer ID, QoS) [7]:Open Mobile: Create Session Response (IMSI, EPS Bearer ID, S1/S5 SGDP IP/TEID) [8]:API: Create Session Response (IMSI, EPS Bearer ID, S1/S5 SGDP IP/TEID) [9]:S5: Create Session Request (IMSI, EPS Bearer ID, APN, SGDP IP/TEID, Subscribed QoS Profile (QCI, ARP, APN-AMBR), E-CGI, TAI) [10]:CCR (IMSI, UEIP, PDN ID(APN), Subscribed QoS Profile (QCI, ARP, APN-AMBR(UL/DL), ECGI, TAI) [11]:CCA (IMSI, PCC Rule (SDF filter, QCI, ARP, APN-AMBR(UL/DL), Charging Method) [12]:API: Create Session Request (IMSI, EPS Bearer ID, UEIP, SGDP IP/TEID, QoS, TFT) [13]:Open Mobile: Create Session Request (IMSI, EPS Bearer ID, UEIP, SGDP IP/TEID, QoS, TFT) [14]:Open Mobile: Create Session Response (IMSI, EPS Bearer ID, PGDP IP/TEID) Default Bearer Id로전달 [2]:Insert Subscriber data Ack [3]:S11: Modify Bearer Command (Default Bearer ID, QCI, ARP, APN-AMBR) [4]:S5: Modify Bearer Command (Default Bearer ID, EPS Bearer QoS, APN AMBR) [5]:CCR [6]:CCA [7]:API: Update Bearer Request (Default Bearer ID, EPS Bearer QoS, APN AMBR) [8]:Open Mobile: Update Bearer Request (Default Bearer ID, EPS Bearer QoS, APN AMBR) [9]:Open Mobile: Update Bearer Response (Default Bearer ID) [10]:API: Update Bearer Response (Default Bearer ID) [11]:S5: Update Bearer Request (EPS Bearer Id, Bearer Level QoS(QCI, GBR, MBR, ARP), APN-AMBR, TFT) QCI, ARP가변경시 Bearer modification with bearer QoS update QCI, ARP가변경없이 APN-AMBR만변경시 Bearer modification without bearer QoS update S1 indirect forwarding bearer (DL) Source S1 bearer (UL/DL) Source S5 bearer (UL/DL) S1 indirect forwarding bearer (DL) S1 indirect forwarding bearer (DL) S1 indirect forwarding bearer (DL) Target S1 bearer (UL) Target S5 bearer (UL) S1 indirect forwarding [25]:S1AP: Handover Notify (E-CGI, TAI) bearer 연결 [26]:S10: Forward Relocation Complete Notification [27]:S10: Forward Relocation Complete Ack [28]:S11: Modify Bearer Request (EPS Bearer ID, Target enb IP/TEID) [29]:API: Modify Bearer Request (EPS Bearer ID, Target enb IP/TEID) [30]:Open Mobile: Modify Bearer Request (EPS Bearer ID, Target enb IP/TEID) [31]:Open Mobile: Modify Bearer Response (EPS Bearer ID) [1]:[NAS] Attach Request [2]:[S11] Create Session Request [3]:[NBSIF] CSReq [4]:[SBSIF] OFPT_FLOW_ADD_REQUEST (OFPFC_ADD) create for S5. [5]:[SBSIF] OFPT_FLOW_ADD_REPLY <NBSIF Message Abbreviation> [6]:[NBSIF] CSRsp S#1(S5-SGDP) CSReq : Create Session Request S#1(S5-SGDP) CSRsp : Create Session Response MSReq : Modify Session Request [7]:[S5] Create Session Request MSRsp : Modify Session Response [8]:[NBSIF] CSReq S5-SGDP DSReq : Delete Session Request [9]:[SBSIF] OFPT_FLOW_ADD_REQUEST (OFPFC_ADD) create for S5. S5-SGDP DSRsp : Delete Session Response S5-SGDP [10]:[SBSIF] OFPT_FLOW_ADD_REPLY [11]:[NBSIF] CSRsp S#2(S5-SGDP,S5-PGDP) [12]:[S5] Create Session Response S#2(S5-SGDP,S5-PGDP) S5-PGDP [13]:[NBSIF] MSReq [14]:[SBSIF] OFPT_FLOW_MOD (OFPFC_MODIFY_STRICT) S#1(S5-SGDP,S5-PGDP) S#1(S5-SGDP,S5-PGDP) S5 [15]:API: Create Session Response (IMSI, EPS Bearer ID, PGDP IP/TEID) [12]:S5: Update Bearer Response (IMSI, EPS Bearer ID, User Location Information(ECGI)) S1 Bearer (DL) 연결 [32]:API: Modify Bearer Response (EPS Bearer ID) [15]:[NBSIF] MSRsp S#1&#2 [16]:S5: Create Session Response (IMSI, EPS Bearer ID, UE IP, PGDP IP/TEID, S5 PGDP Authorized QoS Profile (QCI, ARP, APN-AMBR)) IP/TEID 할당 Target S1 bearer (DL) S#1(S5-SGDP,S5-PGDP) 20/31

4. Call Flow (Attach-1) III. SDN/NFV 기반의분산구조 EPC RRC Connection S1 Connection 상호인증및 Security Setup 가입자위치등록및가입정보취득 EPS Session 설정 Data Plane Selection 요청 사업자과금 /QoS 정책적용 Data Plane Selection 요청 21/31

4. Call Flow (Attach-2) III. SDN/NFV 기반의분산구조 EPC EPS Bearer 설정 22/31

5. 시험환경 III. SDN/NFV 기반의분산구조 EPC Local 테스트베드구축필요사항 LTE 단말 Smart Phone 및 Test USIM enodeb Contela LTE Smallcell FMS(Femto Management System)/FMS Client sepc Node (MME, S-GW, P-GW, MCC, Cloud Controller) x86 서버 Switch (1G, 10G) Simulator PCRF/HSS/AuC 그외 사업자 Field Test LTE-Uu LTE-Uu enodeb 광변환기 L2 Switch HSS/AuC Sim SVR_01 2.9GHz, 32 Lcore, 32G, 300G SVR_02 2.5GHz, 32 Lcore, 32G, 600G SVR_03 2.8GHz, 40 Lcore, 64G, 1.2T SVR_04 2.8GHz, 40 Lcore, 64G, 1.2T MME00a (6) SGCP00a (5) PGCP00a (12) VM VM VM VM MME Standby(6) SGCP00b (5) PGCP00b (12) VM VM VM VM MCC00a (10) VM Open vswitch Open vswitch SGDP00 (10) VM Open vswitch SGCP01a (5) SGCP01b (5) SGDP01 (10) VM DB PDN (Packet Data Network) Streaming Server FTP Server INTERNET IP(SGi) enodeb SVR_05 MCC00b (10) SGDP02 (10) PGDP00 (10) Shield Room FMS VM VM Open vswitch VM 220 network SVR_06 VIM(Open Stack)-Cloud Controller FMS Client 10G Switch Rack 구성 PCRF Sim HSS/AuC Sim VM 및 Simulator 구성 23/31

sepc (smart SDNFV EPC) IV. Use Cases 1. Use Cases 2. One box sepc 24/31

4. Use case IV. Use cases 기업용및군사용 /PS-LTE/LTE-R 용독립망 가상화 EPC sepc 가상화 EPC 25/31

4. One Box EPC IV. Use cases 용량및성능 항목 내용 MME SG-CP PG-CP DB 수용가입자 20,000 명 (Call Model 에따라변경 ) 수용 enb 50 대 DP EMS Throughput 5 Gbps (Down/Up 포함 ) 100% 자체기술로개발 Max Bearers 50,000 개 H/W 기반 Network Accelerator 사용 가상화기술적용 이중화 Active-Standby Active Call 은유실없이 Switch-Over 가능 가상화 지원 26/31

4. One Box EPC IV. Use cases SW 구성 27/31

4. One Box EPC IV. Use cases 1Box sepc 이중화 (Active/Standby) H/W Component 이중화구성 * DL380 G8 기준 MSC Connector SCTP Acceptor SCTP Handler Diameter Stack IPC GTPCIF SGCC PGCC IPMGR PCCIF Diameter Handler GTPCv2 SG-CP PG-CP Handler S11 IPC/TCP UE Handler Active (GTP-C) STATMGR BMGR NATMGR Common Platform GW DP UPH RULEMGR Common Platform NBSIF CTM Heartbeat LAN A Heartbeat LAN B MSC Connector SCTP Acceptor SCTP Handler Diameter Stack IPC GTPCIF SGCC PGCC IPMGR PCCIF Diameter Handler GTPCv2 SG-CP PG-CP NBSIF Handler S11 IPC/TCP UE Handler Standby (GTP-C) STATMGR BMGR NATMGR Common Platform GW DP UPH RULEMGR Common Platform CTM 구성 Server DISK Power 1:1 이중화구성 이중화 Supported Disk Mirroring Supported Hot Plug 2 PEM Load share Supported Hot Swap EMS DB Service(EPS) Network EMS DB 구성 FAN 5+1 Redundancy Supported Hot Swap Value-added Network NIC 2 Redundancy 가능 ( 필요시 ) Management Network PDN Network S/W Component 이중화구성 Network 이중화구성 (DL380 G8 기준 ) 구성 S/W Module DataBase 이중화 Active/Standby 이중화구성 - MME - sepc S/P GW - EMS (Option) Active/Active 이중화구조 - DB Replication 구성 Network 이중화 이중화 Service(EPC) Network - S1/S10/S11 부가망 - Gx(PCRF)/Gy(OCS)/Gz(OFCS) - S6a(HSS)/SGs(MSC)/S3(SGSN) Management Network - 이중화 HB, EMS PDN - SGi(PDN) 28/31

4. One Box EPC - EMS IV. Use cases 구성관리 관리대상 NE 들의형상정보관리 시스템장애정보요약 장애및상태정보실시간반영 로그관리 관리대상시스템들로부터수집된 PM, Alarm, Fault 실패호이력등의로그관리 상태 / 고장감시관리 관리대상장비상태실시간감시 실시간이벤트및 Alarm 관리기능 장애발생이력기능제공 SW 관리 관리대상시스템들의소프트웨어패키지, DB 데이터유지, 관리 GUI 기반의패키지백업, 인스톨 성능감시 ( 통계 ) 시스템의성능정보수집및저장 성능데이터임계치관리기능 통계분석이용이한다양한 Chart 기능제공 시스템감시기능 시스템의자원관리기능을수행 자원의과부하발생시자동감시 / 복구기능이작동되어중단없는시스템운용이가능 진단및원격제어 실시간 Call Trace 기능 원격진단및제어기능 이력저장및추적가능 운영자정합 운영자중심 MMC (Man Machine I/F) 를통한시스템관리기능제공 실시간시스템메시지출력 29/31

sepc (smart SDNFV EPC) V. 회사소개 1. History 30/31

1. 회사소개 V. 회사소개 회사명대표이사설립연도자본금 콘텔라박순 2000년 3월 23일 34.9억 LTE / WCDMA FGW(Femto Gateway) 상용화 - 세계최초 LTE FGW 상용화 - 국내유일의상용 LTE/WCDMA FGW (FMS 포함 ) Vendor - 상용 enodeb, EPC 와연동기술확보 기업용이동통신솔루션상용화 - CDMA : WOS(Wireless Office Solution) for SKT : WOS(Wireless Office Solution) for KDDI ( 일본 ) - WCDMA: CGW (Corporation Gateway) for SKT - LTE : P-LTE for SKT 직원수 143명 (R&D 100명 ) 경기도성남시분당구수내동 6-3 위치서영빌딩 3층 LTE(-A) Core/FGW/ 소형셀, 주생산품기업용이동통신솔루션 IoT용이동통신솔루션 TL9000 인증기업 IoT 용이동통신솔루션상용화 - CDMA : M2M Gateway - WCDMA/LTE: Open M2M Platform LTE / WCDMA 소형셀상용화 - 세계최초상용 LTE 소형셀 Vendor - 세계최초상용 WCDMA 데이터소형셀 Vendor - 국내유일의 WCDMA 소형셀 Vendor 글로벌사업자대상으로다양한상용 LTE 솔루션납품 - 이통사 : 미국 Operator, KDDI( 일본 ), - SI 벤더 : 삼성전자, NEC, Hitachi 31/31

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