Carrier ethernet-for-power-utilities-presentation


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This presentation reviews the various tools that carrier-grade Ethernet offers to meet the performance required from the ICT network and discusses strategies for the transition to Smart Grid communications

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Carrier ethernet-for-power-utilities-presentation

  1. 1. Carrier-Grade Ethernetfor Power UtilitiesEnsuring Reliable Communications inthe Smart Grid Carrier-Grade Ethernet for Utilities Slide 1
  2. 2. Agenda• Towards a Smarter Grid: Utility Networks in Transition• Carrier-Grade Ethernet Mechanisms• Timing over Packet Synchronization• Choosing the Right Packet Network• Security• RAD’s Carrier-Grade Ethernet Solutions for Power Utilities Carrier-Grade Ethernet for Utilities Slide 2
  3. 3. Towards a Smarter Grid Carrier-Grade Ethernet for Utilities Slide 3
  4. 4. Utility Networks in Transition• Ethernet, IP, MPLS replace SDH/SONET; higher throughput and lower OpEx for: Upgrades to Smart Grid New applications: Substation automation, IEC 61850 IEDs, WASA synchrophasors, IP video surveillance• $3.2 billion spent on utilities telecom equipment in the US – transport networks second largest category (UTC, 2011)• RAD survey: 43% of utilities begin migration with backbone comm network; 28% with SCADA system Carrier-Grade Ethernet for Utilities Slide 4
  5. 5. Migration Performance Requirements• Need service assurance for mission critical apps in a PSN environment: Low end-to-end delay High availability (99.99% - 99.999% ) SDH/SONET-level resiliency• Requirements vary depending on application: Teleprotection: < 10ms symmetrical delay, minimal “jitter” SCADA: May tolerate 1s latency• Cyber security: More interconnected devices = more entry points to protect Need scalable protection tools Carrier-Grade Ethernet for Utilities Slide 5
  6. 6. Traffic Types and Transmission over PSN• Ethernet and IP data and signals from SA IEDs → sent natively over packet• TDM traffic, analog voice, serial SCADA, Teleprotection → require “packetization” or pseudowire emulation (PWE): Synchronous bit stream is segmented; headers are added to form packet Packets are forwarded to destination over the PSN network At destination, headers are removed, original bit stream is reconstructed, timing regenerated Common pseudowire emulation standards: CESoPSN, SAToP, TDMoIP Carrier-Grade Ethernet for Utilities Slide 6
  7. 7. Carrier-Grade Ethernet Mechanisms Carrier-Grade Ethernet for Utilities Slide 7
  8. 8. Ethernet is Now Carrier-Grade• Ethernet is no longer a “Best Effort” technology Engineered by industry to provide SLA-based performance guarantees, reliability schemes, service management tools• Full set of standards developed by the IEEE, ITU-T, MEF• Metro Ethernet Forum = a consortium of carriers, service providers, equipment vendors promoting Carrier Ethernet adoption• Extensive deployments of premium Ethernet services with double digit growth worldwideCan now provide deterministic quality of service, predictable latency and jitter performance for mission-critical substation applications: SCADA, IEC 61850 GOOSE, etc Carrier-Grade Ethernet for Utilities Slide 8
  9. 9. Extensive Traffic Management andQuality of Service Toolset• Classification of incoming traffic into flows, e.g., IEC 60870-5- 104, DNP3 per DSCP, 61850 GOOSE traffic per PCP, VLAN-ID• Metering and policing to regulate traffic with different bandwidth profiles• Advanced scheduling and queue management to ensure minimal latency and jitter• Shaping to smooth out bursts and avoid buffer overruns in subsequent network elements• Packet editing and marking to signal proper handling instructions for subsequent network elements Carrier-Grade Ethernet for Utilities Slide 9
  10. 10. Performance Monitoring and Testing• A wealth of carrier-grade Ethernet tools to remotely test, monitor and troubleshoot the operation of communications links• Utility network operators anticipate service degradation ahead of time, as well as cut down truck-rolls and on-site technician calls Fault Connectivity Fault Performance Stress Testing Propagation Verification Detection Monitoring & Isolation Carrier-Grade Ethernet for Utilities Slide 10
  11. 11. Communications Channel Resiliency• Hardware redundancy: No single point of failure (NSPF) design with redundant, hot-swappable power supplies Redundant control plane and switch fabric cards• Link redundancy: 1+1 protection topology with automatic switchover between links Link aggregation group (LAG) per IEEE 802.3-2005 LACP (link aggregation control protocol) for Ethernet-based services• Path protection: Ethernet Linear protection Switching (G.8031) , AKA “EVC (Ethernet Virtual Connection) protection” Ethernet Ring Protection Switching (G.8032 ERPS) to provide Five Nines (99.999%) availability Carrier-Grade Ethernet for Utilities Slide 11
  12. 12. Timing over Packet (ToP)Synchronization• PSNs require complementary clock transfer solutions with a high level of precision• ~1ms highest accuracy level required today for utility applications Upcoming Smart Grid apps will require 1μs and better Time of Day (ToD) required for synchrophasors and to avoid cascading blackouts• GPS is accurate but costly, susceptible to jamming• ITU-T Synchronous Ethernet (Sync-E) Uses the Ethernet physical layer to accurately distribute frequency• IETF NTP and IEEE 1588-2008 Precision Time Protocol (PTP) Exchange timestamp information to deliver frequency and ToD• Many network operators use Sync-E for frequency distribution and PTP for time synchronization Carrier-Grade Ethernet for Utilities Slide 12
  13. 13. Choosing the Right Packet Network Carrier-Grade Ethernet for Utilities Slide 13
  14. 14. Comparing Technology OptionsUtility network operators need to choose which technology to employ:• IP• MPLS (Multi-Protocol Label Switching)• Carrier-grade Ethernet Protocol OAM/APS Security IP No standard end-to-end Strong (IPsec) mechanisms MPLS Recently developed for No built-in security MPLS-TP Ethernet Carrier-grade Several security mechanisms defined (802.1X, MACsec) Carrier-Grade Ethernet for Utilities Slide 14
  15. 15. Option 1: Combining Ethernet Accesswith MPLS Core Ethernet GOOSE delivered directly = No Lower cost per port tunneling/conversion over MPLS core Richer OAM, PM tools Advanced protection mechanisms Maintain existing access media installed base Carrier-Grade Ethernet for Utilities Slide 15
  16. 16. Option 2: Replace SDH/SONET with Ethernet Operational Network Scalable IP/MPLS for IT/enterprise network  VoIP, IP video, internet connectivity, billing IT/Enterprise Substation Center IT/Enterprise Multiservice RTU IP/MPLS Network Access RS-232 Node Teleprotection VoIP Operational X.21 Ethernet Network PBX E1 Ethernet Service Aggregation Platform 1 GbE / 10 GbE Ring Ethernet Service Aggregation Platform Simplified architecture Operational Substation and management Center Multiservice RS-232 RTU Access Increased security NMS Node Teleprotection Lower latency Replace SDH/SONET X.21 SCADA Assured QoS PBX operational network with E1 Ongoing performance monitoring Carrier-Grade L2 Ethernet  SCADA, Teleprotection, Automation Carrier-Grade Ethernet for Utilities Slide 16
  17. 17. Security Carrier-Grade Ethernet for Utilities Slide 17
  18. 18. Layered Security Approach• Utility networks require “Defense in Depth” implementing multiple levels of protection:• Should be deployed in the network without adding too many dedicated security appliances on top of the communications infrastructure Carrier-Grade Ethernet for Utilities Slide 18
  19. 19. RAD’s Carrier-Grade EthernetSolutions for Power Utilities Carrier-Grade Ethernet for Utilities Slide 19
  20. 20. Full Portfolio for Power Utility Networks IPmux Megaplex ETX-A TDM Pseudowire Multiservice Access Carrier Ethernet Gateway Platforms over Fiber ETX-5300A RICi-GE RADiFlow Multiservice Ethernet over NG-SDH Service-Aware Aggregation Secure Ethernet Platform Switches Carrier-Grade Ethernet for Utilities Slide 20
  21. 21. Ensuring a Smooth Migration• Hybrid SDH/SONET and PSN access solutions Allow utilities to choose the migration path that best suits their needs Deterministic QoS for NGN services and advanced grid applications over TDM or packet transport Service continuity for legacy equipment• Multi-standard ToP synchronization, including 1588 Grandmaster functionality in the same communications device• Ethernet switches with cyber security and authentication protocols Carrier-Grade Ethernet for Utilities Slide 21
  22. 22. Conclusion• Ethernet has been engineered and standardized and now includes critical “must haves” for NG utility networks: Robust clock accuracy Traffic management and hard/hierarchical QoS Resiliency On-going performance monitoring Support for legacy services and traffic Security• A combination of carrier-grade Ethernet in the access/aggregation with an MPLS core can address the needs of the Smart Grid• RAD offers a wide selection of utility-grade solutions to ensure high performance, cost-effective and easy migrationDownload comprehensive Carrier-Grade Ethernet for Power UtilitiesSolution Paper Carrier-Grade Ethernet for Utilities Slide 22
  23. 23. Thank YouFor YourAttention Carrier-Grade Ethernet for Utilities Slide 23