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Combining Ethernet and Circuit Services presented at 23th Oct 2006 Overview • Ethernet transport is a key enabler for Ethernet (& IP) services – Uniquely meets most stringent service requirements – Improve service coverage and time to market – Accommodates today’s transport infrastructure and enables for future migration • Key applications in – – – – Residential triple play backbones Wireless access/backhaul Data center networking Resilient access to switched/routed data services networks 2 Background To reduce operating and capital expenditures, many enterprises are considering consolidating their voice, data, and video traffic onto a single converged, packetbased network Despite the availability of Ethernet metro and WAN services, many enterprises are still searching for solutions that fully address their evolving requirements Revenues from traditional frame relay, ATM and TDM private line services delivered over separate network infrastructures continue to shrink, but will take a long time to disappear Co-existence of Ethernet and other services is a necessity !! 3 Challenges for Carriers Carrier Challenges Carrier Ethernet Solution Scalability (MACs, VLANs, Nodes) EoMPLS Differentiated services on one network Hard QoS Carrier-class Non-stop reliability Service migration Service interworking Carrier Ethernet solutions respond to carrier challenges 4 Multiple Services – Single Network NOTE: View this slide in presentation mode. IP FR IP IP Business Services Network Infrastructure AT M • Frame Relay Consumer Services• DSL Back Haul Network • Ethernet TLS VPNs Infrastructure • Internet Access • IP Sec & GRE VPNs TD M ET H IP/MPLS Ethernet DS Multiple Services L Wireles s ATM Business Customers Revenue Consumer Revenue IP VPNs FR/ATM VPNs Ethernet VPNs MPLS Enables Convergence 5 Service Interworking Layer 3 VPN Layer 3 VPN (IP) (IP) Ethernet Ethernet IP/MPLS Core Layer 2 VPN (FR/ATM) PE PE Layer 2 VPN (FR/ATM) – Service Interworking enables existing FR/ATM customers to communicate with new IP/Ethernet customers – Service Interworking enables any customer to exchange data with any other, regardless of protocol – Provides ATM-like hard QoS guarantees for IP and Ethernet services enabling customized per-customer/per-service SLAs 6 Service Interworking Example Bank A LSP A LSP B FR PE Bank B PE Ethernet IP/MPLS Core Bank A Bank A ATM FR Service Interworking is a key enabler Increases Addressable Market Lowers Capital Expenditures Increases Flexibility Seamless Integration for the Customer Service Interworking is a must to address current as well as new customers 7 Example End to End Services Network Architecture Core Aggregation 8830 To National or Off-Net Customers Internet Access 8813-311 Ethernet 8813-311 Access Ring 8830 8860 IP Metro 8813-311 Gigabit Ethernet PSTN 8815-5000 8813-427 MPLS Metro 8813-311 Access Network 8830 Copper Fiber Enabled Services ATM / Frame 8813-311v Multipoint Ethernet 8830 8830 8840 8813-46 Point-to-Point Ethernet 8830 IP or IP/MPLS Backbone Customer Premises - Internet Access - TLS - VPLS - IPVPNs (2547bis) Off-net TDM Access TDM over Ethernet VoIP and Video Internet Access 8815-2200 Off-net TDM Access TDM over Ethernet 8 Convergence Technologies SynEth Enh1588 IPTV CESSync WiMax CES WiFi EoPDH MEth DoC OC-3, OC-12 MPLS EoS ADSL FR 3G VoIP VDSL xPON FCoS 2G OC-48/-192 ATM T/E Key: Sync over PSN Not Ethernet-based Ethernet-based Partially Ethernet-based Ref: "Crossing the Chasm" by Geoffrey A. Moore 9 TDM Convergence Technologies Customer Side (type) CES TDM Signal Framing and OHT Adaptation EoS EoPDH RTP (opt.) Ethernet Ethernet UDP/IP (opt.) GFP-T or GFP-F GFP-F MPLS (opt.) VCAT & LCAS VCAT & LCAS VLAN (opt.) SONET/SDH T/E Carrier Framing & OHT Framing & OHT Ethernet SONET/SDH T/E Carrier PHY PHY Eth PHY Provider Side (typ.) 10 Sync-over-Packet Network View xPON HDX, IC Sync IWF PRS xPON ONT IWF CES OCC Sync DOCSIS HDX, CC sync CMTS GE, 10GE FDX, CC GE, 10GE FDX, CC Sync IWF ESS IWF ESS PRS SONET/SDH FDX, CC GE, 10GE FDX, CC SONET/ SDH Network ADM ADM GE, 10GE FDX, CC Sync IWF AFE Clock IWF OCC ADM GE, 10GE FDX, CC Metro Ethernet Network CES Sync ESS xDSL FDX, CC ESS IP-DSLAM GE, 10GE FDX, CC ADM GE, 10GE FDX, CC CES Sync RNC Iub: FE, GE FDX, CC 3G Node B Sync IWF Local Clock IWF CES Sync WiMax Base St CC = Continuous Carrier IC = Intermittent Carrier 11 Sync and Incumbent Carriers Incumbent carriers will want... – High-quality sync --> Potential differentiator (or maintain parity) – Predictable, reliable, deterministic sync...not traffic-dependent – Proven technology, low risk (conservative approach) – Hierarchical clock distribution which derives from SONET/SDH – Easy fit: Similar OSS & craft setup and management – Always operate at the lowest feasible network level • Reliability • Quality – Low incremental CapEx Predictions: #1 Choice: CES Sync (Available now, but not "Layer 1," not forklift) #2 Choice: Synchronous Ethernet ("Layer 1," but not available now, and forklift) #3 Choice: IEEE 1588v2 ("Layer 2, and not available now, and forklift) Wildcard: Cheap GPS! 12 Carrier Ethernet Convergence Is Here HD TV TVoD, VoD Video Source Gaming Business Backup, ERP Voice/Video Telephony Voice gateway Video Source E-Line, E-LAN, and TDM services Business Broadband Mobile 3G Broadband mobile data/video Carrier Ethernet Internet Residential Triple-Play FTTx and DSLAM Backhaul Traffic Engineering & QoS of ATM Resiliency & Manageability of SONET/SDH Simplicity & Economics of Ethernet 13 Broadband Services Applications Business Mobile Residential • Enriched Services • Wireless Backhaul • Triple Play with IPTV • Gigabit connectivity between businesses • Wi-Fi Access delivery • 100’s of TV channels • WiMAX infrastructure • Video on demand • 3G and beyond wireless • Video recording/playback • Data Center Consolidation • Storage and disaster recovery • Next gen data services • Interactive video apps • High resolution photo • Guaranteed rate multimegabit Internet access • Video conferencing & broadcast • Wireless video • Multi-megabit Internet access • Gaming • Remote learning • Digital TV • Gaming • Business telephony 14 Enterprise Services Inter-LAN, Inter-PABX and SAN VPLS or VPLS-TE Service Customer site High Speed Internet Access Customer site Customer site Customer site Customer site Carrier Ethernet VPLS Group Carrier Ethernet Carrier Ethernet www Customer site Customer site Customer site High Speed Access to IP-VPN Multi-Service Access Customer site Customer site Customer site Customer site Customer site IP VPN Carrier Ethernet Carrier Ethernet IP VPN www Network Customer site Customer site ASP, or Extranet 15 Triple-Play Services Access Concentrator MPLS/Ethernet Aggregation Network BB-SR Regional Network ISP ASP RGW • • Delivering triple play services over variety of access concentrators (DSLAM, OLT, Base stations) enables the operator to offer extensive and competitive Triple-Play services The Carrier-Ethernet aggregation network is a key factor to enable co-existence of new and legacy access network do deliver new and advanced services 16 End-to-End Carrier Ethernet Solution BTS Carrier Ethernet with Traditional Ethernet Economics 17 Delivering Commercial Voice, Video and Data Services over Packet Switched Networks Metro / Campus FE/GbE PSTN Circuit Emulation with or without compression T1/E1, CT3/OC3 STM-1 TDM Network (Class 5 Switch, PBX, SONET…) V.35/T1/E1/T3/E3 PBX PSN w/ Abundant B/W Circuit Emulation PBX Metro / WAN Cable/DSL Satellite Leased Lines Frame Relay Internet PSN w/ Limited B/W Circuit Emulation with compression Voice, Data & Video Pseudowire services over Metro & WAN Circuit Emulation requires at least 1.7Mbps of bandwidth per T1 Compression ( with VAD, BOD, LBRC, HDLC flag & SS7 FISU/LISU suppression) reduces bandwidth consumption to under 100Kbps per T1 18 Connecting TDM-Based PBX’s Over FE/GBE or IP WAN Headquarters PBX Circuit Emulation for Campus or Metro Ethernet (School districts, airports, etc.) FE/GbE School PSTN Circuit Emulation with or without compression IP WAN Circuit Emulation with Compression for IP WANs and low Bandwidth Access networks Remote Branch PBX PBX Circuit Emulation T1/E1, Frame Relay Satellite, Wireless xDSL, Cable, PLC T1/E1 Circuit Emulation with compression Connect PBXs transparently over any packet switched network Circuit Emulation is simple solution for campus/metro Ethernet Add compression and echo cancellation for voice quality over IP WANs and low bandwidth networks (e.g. cable, DSL, Satellite and Internet) 19 Cellular Backhaul via Pseudowires FT1/T1/n*T1 Switch Site FT1/T1/n*T1 Cell Site T1/E1, CT3/OC3 STM-1 Circuit Emulation Cell Site Fiber FE/GbE Circuit emulation and cross-connect FT1/T1/n*T1 Carrier Ethernet • T1/E1 leased lines account for 40%-60% of mobile operators expenses • Reduces 2G access costs and positions the mobile operator for future 3G network expansion • Latency starts at under 3ms • Clock complies with G.823/824 jitter and wander requirements Fixed Wireless Headend Cable HFC Infrastructure Circuit Emulation Cell Site FT1/T1/n*T1 Circuit Emulation Cell Site 20 Pseudowires vs. VOIP Complementing Technologies VOIP Circuit Emulation Advanced multimedia features Any-to-any voice/video switching & hunt groups Protects investment in legacy equipment during migration to IP Supports structured/unstructured T1/E1 & T3/E3 Transparent to payload Accurate clock synchronization over IP/Ethernet/MPLS Supports async/sync protocols over PSN (including ATM, Frame Relay, H.320 video, GSM, CDMA, encryption, etc.) Minimum end-to-end latency (assuming G.711) 45ms 1ms 21 Private Line Services • • Private Line (‘legacy’) service revenue still growing Driving increased demand for circuit emulation Total Private Line Revenue (US), 2005-2010 ($Millions) Insight Research Jan 2006 22 Circuit Emulation Emulated Circuits SAToP • T1/E1/T3 • Clock & any data transport CESoPSN • NxDS0 with or without CAS • Efficient fractional/aggregate NxDS0 CESoPSN CEP • Low order VC: VC-11/12/2/3 • High order VC: VC-3/4/4-4c/etc • SDH ADM over packet Multi-Service E1/T1 SAToP NxDS0 4x E1/T1 4x E1/T1 SONET/SDH VC-4 STM-1/OC-3 STS-1 Carrier Ethernet CEP 23 Typical CES Topology Core Metro Access CPE Class 5 Switch TDM Backhaul SONET/SDH PSN Class 5 Switch Ethernet nxT1/E1 T1/E1/T3/STM-1/OC-3 Ethernet Carrier Ethernet Backhaul nxT1/E1 24 World of Standards CIRCUIT EMULATION Standards Body Network CES Standard Notes & Standards Names IETF IP SAToP; CESoPSN; CEP PWE3 ITU General SAToP; CESoPSN Rec. Y.1413 Metro Ethernet Forum Carrier Ethernet SAToP; CESoPSN MEF-3; MEF-8 MPLS Forum MPLS SAToP; CESoPSN MFA 8.0.0 CableLabs DOCSIS BSoD SYNCHRONIZATION OVER PACKET Standards Body Standard Notes & Standards Names IEEE IEEE 1588 v2 Sync over Packet ITU G.8261 SG15 25 Ethernet Co-exists with other Services MPLS Hybrid L2 and L3 Ethernet VPNs ATM Service Inter-working Carrier Ethernet FR Service Inter-working TDM over Ethernet 26 Accelerating Worldwide Adoption of Carrier-class Ethernet Networks and Services