Connection-oriented Ethernet (COE) Combining the Reliability, Performance, and Security of SONET with the Flexibility and Efficiency of Ethernet

Transcription

1 Connection-oriented ernet (COE) Combining the Reliability, Performance, and Security of SONET with the Flexibility and Efficiency of ernet

2 Topics Just what is connection-oriented ernet (COE) anyway? Fundamental attributes Key technologies Basic value proposition The value of integrating COE with optical networking Packet Optical Networking How is COE creating business opportunities in metro networks? Mobile backhaul DSLAM backhaul Wholesale and retail ernet services 2

3 Connection-Oriented ernet: Carrier ernet with Traffic Engineering Explicit forwarding of ernet connections & tunnels Forward on tags vs. connectionless MAC address learning and flooding vs. Layer 1 forwarding Resource reservation and admission control For each CoS instance, EVC, tunnel Per-flow queuing / traffic engineering vs. simple priority queuing Connection-oriented ernet Connection-oriented ernet EVC1 EVC2 EVC3 Explicit data path Per flow queuing Scheduler sees each EVC Deterministic performance Traditional ernet switching Traditional ernet switching EVC1 EVC2 EVC3 magic Shared priority queue Plug n play Priority queuing? Scheduler sees the Queue Statistical performance 3

4 Attributes of Connection-oriented ernet Standardized Services MEF 6.1 EPL, EVPL Services MEF 10.2 Service Attributes Deterministic QoS Lowest Delay, Delay Variation, Loss Bandwidth Resource Reservation Connection Admission Control ernet OAM 802.3ah Link Fault Management Y.1731 Service Fault Management COE Attributes Scalability Layer 2 Aggregation Statistical Multiplexing Tag Swapping/Reuse Network Protection G ms EVC Protection 802.3ad UNI & ENNI Protection Security Bridging disabled-mac DoS attacks mitigated Completely Layer 2 - no IP vulnerabilities Connection-oriented ernet: More than just a protocol 4

5 The Best of Both Worlds Connectionless ernet Bridging Good Aggregation / Stat Muxing Non-deterministic QoS Long (>200ms) protection times ernet over SONET/WDM No Aggregation /Stat Muxing Deterministic QoS Short (<50ms) protection times Security Connection-Oriented ernet ernet aggregation and stat muxing Highest EVC quality 50ms protection speed Precision OAM Security Packet ONP SONET quality, security, availability ernet flexibility and efficiency 5

6 Connection-Oriented ernet (COE) NGN Metro Infrastructure and ernet Services First general purpose ernet Infrastructure A single investment for all applications Deterministic foundation ernet aggregation for efficiency High-value ernet connectivity and backhaul services Service Edges MTSO Web COE does for ernet what SONET did for DS1/DS3 VoIP VHO Video Web Metro E-LAN office IP services PoP L2 VPN L3 VPN Web Key applications Mobile Backhaul Enterprise site to site services Retail ernet access services Wholesale interconnection services DSLAM Backhaul Mobility Mobility Connection-Oriented ernet Infrastructure Residence, MTU Enterprise Enterprise End users COE is the foundation of Metro NGN Networks / Services 6

7 ernet-centric COE Simplest COE for Metro ernet-centric COE Mgmt plane MPLS-centric COE Mgmt plane IP control plane Static PW T-MPLS MPLS-TP IP/MPLS S/C tag tunnel PW MPLS LSP PW One Layer to manage ernet Scalable through reusable tags One OAM method (802.1ag/Y.1731) One protection method (G.8031) Management plane approach Three Layers to manage ernet, MPLS PW, MPLS LSP Multiple OAM methods Complex protection ernet-centric COE results in simplest and lowest cost metro operations 7

8 Packet Optical Networking: Integrating COE and Layer 1 Optical Networking Open Platform implementation Pluggable open /interworking environment Vs. discrete functions that live under a specific technology roof Like packet on a blade in a ROADM Widest range of application and flexibility in network evolution COE card SONET + COE Packet ONP COE mponp COE + complete layer 1 networking SONET, PDH, OTN, Lambda, ernet Provisioned connections vs. dynamic IP control plane Brownfield optical network is an asset ~100,000 nodes can feed COE services Builds the NGN network COE More and than TDMa transition investment Switching fabric OTN/Wave Transport SONET SONET NID COE mponp ernet networks TDM network Example Packet ONP Open-platform Implementation Joining the Existing Network and the Next Generation Network 8

9 Backhaul Provider Challenges COE is required for 3G and 4G backhaul ernet for economical bandwidth Connection-oriented ernet for loss, latency, jitter performance Performance is too stringent for connectionless ernet T1 transport is required ¾ of cell sites have 2G, 3G, 4G mix Leveraging existing assets Many sites served by equipment now T1 over SONET is tariffed and operationalized Mobile Operator ernet Performance Requirements bridged networks fall short 3G-only 11% < 5ms latency < 1ms jitter < 10-6 packet loss Cell Sites by RAN (Worldwide ) 2G-only 13% P-ONP Connection-oriented ernet networks exceed 4G-only 3% Minimizing access costs Serving multiple operators with a single solution Keep backhaul simple and familiar Source: Infonetics. August 2009 Multi-Ran - 73% Address Emerging Requirements Deliver Existing Services Leverage Existing Assets 9

10 Case Study: Full Service Mobile Backhaul COE uniquely addresses emerging 3G/4G ernet needs Connection performance with ernet aggregation 2G SONET integration for existing T1 backhaul Native TDM backhaul for multi-provider, multi-ran sites No new sync technology, no staff retraining, no new SLAs, no new troubleshooting 4G 3G 2G 3G mponp EoSONET ring COE over SONET Ring Native ernet Mobile Office / Aggregation office Packet ONP COE Ring 4G 3G 2G Maximizes use of existing assets Existing s with EoS Add COE units to existing chassis Micro Packet ONP Packet ONP is a flexible anchor point to build out new fiber to greenfield sites NID 4G mponp 3G Single architecture for emerging and existing services 10

11 Case Study: DSLAM Backhaul and Wholesale Access Mix of DSLAM backhaul required Legacy DSLAMs - ATM over DS3 Requires SONET backhaul New EoCu DSLAM deployments Requires ernet Backhaul Hub CO IP VPN Web Packet ONP ENNI PE ernet partner Packet Optical COE Infrastructure Single network for all needs High quality Connection-oriented ernet backhaul connections Underpins all services Provides broad-scale aggregation vs. EoS Presents a standard ENNI to partners DS3 ATM DSLAM COE + SONET Ring mponp mponp DS3 GE GE ATM DSLAM DSLAM DSLAM Evolve to new EoCu DSL services while cost effectively servicing existing subscribers 11

12 Wholesale and Retail ernet Services Decouples ernet service from the underlying network technology One COE service any access One end user, one service, different access Increases the addressable end-users Embedded networks / off-net can get COE services Increases the service velocity No specialized overlay Enables wholesale interconnection services Delivers standard R-UNI and ENNI Simplifies ernet access network Single elements at hub and access sites Hub Site IP VPN Web VoIP EoPDH EoPDH EoPDH EoPDH EoPDH EoPDH Hub Site IP VPN Packet ONP Web Hub CO One ernet Service Description over any type of Access Network VoIP T1, T3 EoPDH IP VPN PDH Access Network COE Web Packet ONP mponp SONET ernet partner PE ENNI ernet Service ernet NID 12

13 COE + Packet Optical for Next Generation Networks COE = Carrier ernet + Traffic Engineering SONET reliability, performance, security ernet flexibility and efficiency Packet Optical Networking integrates COE and Layer 1 optical networking Joins existing assets (networks, people, IT) with next generation services Increases velocity, addressable customers, lowers cost Unique applications being deployed now Full Service Mobile backhaul DSLAM backhaul Wholesale and retail ernet services 13

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