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1 Flow-based Managed IP Solution -QSS

2 1

3 BcN 2 Corporate/ & High-End SMEs SME Residential Personal

4 3 BcN IT Contents Service Softswitch Call control QoS Manager MPLS-based Connections Managed IP Network Access Network More Bandwidth Guaranteed Converged Mobility Personalization xdsl, Ethernet WLAN Mobile

5 4 BcN

6 30 (Cisco 03 IIN, 04 CRS New Router : Lock-In Policy) 10-8 ~ (~ RFC?????) (~ RFC 3810) (~ RFC 2702) T.E CoS QoS = Cisco PC = Microsoft 10-6 ~ ~ 10-4 (RFC 1 ~ RFC 2136) ATM FR Time 5

7 Future Client-Server End-to-End Interactive Age New IP 5 ~ 10 Years (Broadband, Mobility) = BcN ( IP Upgrade) Until Now Disadvantage Quality Security Less Business Model Internet Age Advantage Global Connectivity Low Cost Advantage Quality Reliability ATM failed Telephone Age Disadvantage Cost Complexity Distributed Type Centralized Type 6 [ : NTT: Resonant Network Vision]

8 BcN 7 Class Bandwidth Availability Loss Rate Delay Jitter VoIP Video Telephone VLL L2/3VPN :

9 Packet Network Availability % 99.x% Network Availability IP TDM, SDH Year 8 [ : BCR, ]

10 9 Managed IP Controllable IP Topology Management Resource Management Policy Management SLA Management Network Security Management Global Mobility Management Operator Simple Reliable Inter-Operable Integrated Control Softswitch Control Platform Proper Signaling Intelligence Switch Switch Service Switching Transport Service Edge Switching Transport

11 10 Managed IP - QoS Video server A Resource Mediator (QoS Manager, Bandwidth Broker) Video client A Video server B AF 100 Mbit/s AF 100 Mbit/s AF 100 Mbit/s Diffserv Diffserv network network AF 100 Mbit/s AF 100 Mbit/s AF 10 Mbit/s Video client C Video client B

12 11 Managed IP OAM & Statistics Standard Time [Statistics for SLA] NTP Statistics Trap (MPLS, VLAN Fault) Connection ID : 5 OAM OAM OAM Frame Insertion OAM Frame Processing MPLS OAM and Statistics per LSP VLAN OAM and Statistics per VLAN (Delay, Jitter, Time to Fault and Recovery)

13 12 Managed IP Network Reliability Periodic Reporting Polling/Trap Diagnosis BcN Domain OAM Packet Transit OAM Packet OAM Packet LSP Return Path Backward Reporting (Ping, Traceroute, BDI, )

14 Managed IP Concept <IP/MPLS> -Distributed Topology discovery -IP Reachability Management -Diffused Fault Recovery -Data Forwarding + Diffserv Data Forwarding + Flow control + Statistics + Policy-based TE + Signaling + OAM + Resource discovery + Mobility + VPN Control + Security IP+MPLS <Traditional IP> -Distributed Topology discovery -IP Reachability Management -Data Forwarding -Diffused Fault Recovery (IP+MPLS) =Managed IP 13 Topology Management Resource Management Policy Management SLA Management Network Security Management Global Mobility Management Network Control Platform <Managed IP> -Inter-subnet IP Reachability -Localized Fault Recovery -Scalable end-to-end OAM -Flow-based QoS Forwarding -Flow-based Statistics

15 14 QoS Best Effort IP Flow/Session-based TE (NEW) DiffServ-aware MPLS TE (RFC 3564) DiffServ over MPLS (RFC 3270) IntServ DiffServ T.E New Approach DiffServ over MPLS DiffServ-aware TE IP Flow/ based TE Cisco, Juniper ETRI + Caspian

16 Flow/Session -Level Intelligence Conventional Router Flow-State Router Port Class Knowledge of class/aggregate only Port Class Knowledge of flows inside aggregate Random Discard Under Congestion All flows get same treatment Misbehaving flows impact wellbehaved flows 15 Per Flow Treatment Under Congestion Fairness models Rate guarantees for flows Target specific flows for discard (misbehaving flows) Per-flow shaping, policing, CAC

17 16 Flow-based Switching COS Micro -flow

18 CoS Micro-flow COS B.E Micro flow 17

19 End-to-End QoS QoS Provisioning Server : QoS Microflow : QoS End-to-End QoS : PS PS Node End-to-End QoS : Flow Node Node Node Congestion Micro-flow base QoS Flow 10M Flow1 50M 18 : Connection 25M 5M 5M 5M Micro-flow : Flow1 Drop 10M 10M 10M

20 Session Flow-State vs Other Flow Concepts Flow: Def n is flexible, but generally any unique combination of 5 tuples: State: Managing and maintaining the following information for each flow: Source Address Destination Address Switch Fabric Route Nexthop Forwarding Info Source Port Class Destination Port Rate Protocol Delay Variation QoS Info Byte Count Flow Duration Netflow Cisco CEF/Riverstone Packets Received/Dropped, Bytes Received/Dropped, etc. Statistics Info 19

21 20 Economics of Flow Routing Router Price with 8 High Speed Ports 500 Flow Routing Infeasible Flow Routing Inexpensive 400 $ K Memory Cost For Flow State Flow Routing Packet Routing Flow Routing Utilization Gain 100 Ports are of Highest Speed Available in that Year

22 21 QSS Development Strategy Centralized Control Caspian s Flow Router Σ ATM, MPLS

23 QSS based Services 22 Flow based VPN (IP/Ethernet over MPLS, GbE/10GbE, POS) - Flow based L2VPN - Flow based L3VPN EPL/EVPL (Ethernet over Ng-SDH, EoS/SDH) TDM Emulation New Leased Line (TDM over Ng-SDH, EoS/SDH) Packet DCS (EoS/SDH) Multimedia IP communication Flow Mapper

24 23 QSS Positioning NCP QSS Family 국내업체에 QSS 요소기술 전수 Aggregation Device Aggregation S/W Metro S/W Service Switch Premium IP Network Edge Core DSLAM QSR80 QSS120 QSR240 QSS120/350 QSS120/350 QSR240/700 QSR240/700 Stackable Flexible ASIC or FPGA Flow : less than 10K Scalability Fault Tolerance Embedded OAM & Egress Protection Chassis Type Powerful ASIC Flow : few Millions Jitter/Delay Control Scalability Fault Tolerance Embedded OAM & Protection

25 24 Network Configuration for QSS-120 Demonstration Traffic Generator Congestion Box Best-Effort Service Network Traffic Generator Congestion Box POS(2.5G) L2 Switch (Locus) L2 Switch (Locus) VLAN 200 VLAN 100 Video PhoneVideo Phone GR GR STB HDTV GR VOD (SD) Client-CR Hub for Mgmt. Video Phone GR Video Phone GR FTTH Media VOD (SD) Server Server-CR For HDTV STB Video PhoneVideo PhoneVOD (HD) VOD (SD) GR GR Client-GRClient-AR Customer site-a Call Server NCP NMS Traffic Monitor Video Phone GR Video Phone GR VOD (HD) VOD (SD) Server-GR Server-AR Customer site-b

26 25 Phase 0 Demo IT 839 ( )

27 QSS Positioning (1) Σ λ QSS ADSL WLAN Ethernet IP VDSL Metro Transport Network Service Switch BcN Transport Network TDM 26

28 27 QSS Positioning (2) Subscriber 1 st C.O 2 nd C.O PABX PCM PCM CSU/DSU FLC/SDH FLC FLC/SDH FLC PCM MUX PSTN WDCS WDCS Metro Ethernet Metro Ethernet Switch/Router DSU FDSL/HSDSL FLC FLC FDSL/HSDSL PCM MUX WDCS WDCS L/L PABX V5.2 Needed Upgrade as Consolidated Solution

29 Application (3) Profitable Metro Network Home Policy Provisioning Server Call Server xdsl Home Home DSLAM RT 100TX Branch Office (Telephone Office) Metro POP (Regional Office) Internet Subscriber FES 100FX Subscriber Switch APT(Ethernet) DSLAM APT(VDSL) QSR80 Subscriber G 100TX G G QSS120 xdsl Aggregation Switch 28 QSS120 Marking/Demarking VLAN+ OAM Statistics per VLAN+ DHCP Relay ESN QSR240 BcN/ Premium IP NCP Control QSR240/700 ESN : Edge Service Node

30 29

歯이시홍).PDF

歯이시홍).PDF cwseo@netsgo.com Si-Hong Lee duckling@sktelecom.com SK Telecom Platform - 1 - 1. Digital AMPS CDMA (IS-95 A/B) CDMA (cdma2000-1x) IMT-2000 (IS-95 C) ( ) ( ) ( ) ( ) - 2 - 2. QoS Market QoS Coverage C/D