Industrial IT for Utility Communications. Converged Corporate Network Solutions
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1 Industrial IT for Utility Communications Converged Corporate Network Solutions
2 Perfection in Convergence of TDM- & Packet-ba Convergence Talk of converging Time-Division-Multiplex-(TDM)-based systems, and packetoriented data networks is everywhere. Today, the latest Internet-Protocol-(IP)- centric solutions focus on the convergence of TDM applications and data services onto a single infrastructure with significant bandwidth requirements on LANs and backbones. These applications will be multimedia, including not only the traditional TDM applications for utilities such as telephony, Scada, substation protection but also IP-based solutions for business application, administration, video conferencing and surveillance. More and more Scada center interconnections and energy-trading systems will be IP-based. It shall however be noted, that high-capacity resilient SDH backbone concepts are still a key element for reliable and missioncritical converged utility networks. Corporate Utility Networks Traditional utilites still maintain very often two more or less independent networks: One for so-called operational purposes such as protection, emergency phones or modem-based Scada systems. Mostly, these systems are run by the telecom or communication team and support mainly TDM-oriented connections. A second team takes care of the IT infrastructure, maintaining their own network including slow-speed WAN interconnections for linking two or multiple LAN islands. Most of the WANs are using expensive leased or ISDN lines. Their performance depends completely on the reliability and service capabilities of thirdparty service providers. With today s technical convergence possibilities and growing cost-cutting pressure, a going together for a Converged Corporate Network seems to be a must. Converge TDM Technologies: PDH SDH Packet-switched Technologies: LAN WAN Converged Corporate Network Solutions Operational Applications: Scada Telephony Protection Security IT Applications: Admin & Office Energy Trading Video Intranet / Internet Corporate
3 sed Services for Corporate Networks Converged Corporate Network Solutions Legacy Data PDH Stream Voice IP Stream Administration & Business Applications Packet Stream Carrier s carrier SDH Stream In Converged Corporate Network Solutions (CCNS), two mainstreams merge: the evolution of technology and the merging of all kind of applications Terms used CCNS DSL DWDM IP LAN NMS PDH SDH TDM VLAN VPN WAN Converged Corporate Network Solutions Digital Subscriber Line Dense Wavelength Division Multiplexing Internet Protocol; frequently used as Layer 3 protocol in Packet-based Networks Local Area Network Network Management System Plesiochronous Digital Hierarchy (a TDM-based technology) Synchronous Digital Hierarchy (a TDM-based technology) Time-Division Multiplexing Virtual LAN Virtual Private Network Wide Area Network
4 LAN-/WAN Coupling Solutions for ABB s Data Networking solutions clearly focus on the coupling of LANs and understanding of both domains makes it possible to choose the appropriate p Having this expertise within ABB guarantees a smooth integration of technolo additional related devices from third parties to fi t your requirements. Have a look at some selected LAN-/WAN coupling scenarios keeping in mind tion go hand in hand with them. LAWA4 LAWA4 is a plug-in unit into ABB s comprehensive FOX Multiplexer family. Full duplex 10Base-T standard Ethernet IEEE802.3 physical port > 40 internal logical WAN ports for point-multipoint applications 2 x 2 Mbit/s overall capacity 2 Mbit/s or n x 64 Kbit/s fractional allocable per logical WAN port Supports Bridging and VLANs RIP & OSPF V2 Routing Fully managed LEMU6 LEMU6 is a plug-in unit into ABB s comprehensive FOX Multiplexer family and offers not only local Ethernet connectivity but connects also up to 6 remote LAN/WAN coupling units via DSL. Up to seven independent bridge instances Supports static and dynamic IP routing WAN to MUSIC100 and to logical WAN port via PPP Front panel 10 Base-T interface DHCP relay confi gurable for MUSIC100 Statistics for all interfaces Can connect to LEMU6 on opposite end Access Multiplexer (PDH, SDH) Please replace this part by using the five LAN/WAN-coupling scenarios attached at the end of the document MUSIC100 MUSIC100 is a stand-alone unit to connect to LEMU6 via DSL connection. Ideal to bring LAN interconnectivity to small offi ces or home, e.g. for Internet applications. 4 hubbed Ethernet ports Combines routing functionality with DSL connectivity over normal copper lines Space-effi cient and easy to install Other related WAN-oriented PDH/SDH Multiplexers As ABB s LAN/WAN coupling solutions meet all the appropriate standards for the required interoperability; stand-alone devices (AXX...) can be used in conjunction with any third-party SDH/PDH multiplexer. Most frequently used PDH/SDH devices are however: ABB s FOX515 with a complete range of interfaces for any type of legacy, voice or backbone application ABB s partner product lines Optera Metro SDH & DWDM (Nortel) 6300-series (Tellabs) Other related LAN-oriented switching/routing devices Due to a high level of standardization, nearly any third-party switching and routing product can be connected to ABB s LAN/WAN coupling solutions. Most frequently integrated devices are Nortel and Cisco. With both, ABB has Global Partnership Agreements.
5 Converged Corporate Networks WANs to make best use of existing or new infrastructures. Just the rtfolio as an enabler for highly effi cient LAN/WAN solutions. gy and applications with key products as highlighted below and with that all traditional services with legacy data, PABX and even teleprotec- Transport Multiplexer (SDH, WDM) Please replace this part by using the five LAN/WAN-coupling scenarios attached at the end of the document AXX155 / The AXX155 & are stand-alone integrated access devices that map PDH & Packet-switched data into. 4 / 12 x E1 Ports 4 x 10 / 100 Base-T ports Multiprotocol switching & routing functionality VLAN support For point-point applications or in conjunction with point-multipoint-enabled Either protected or unprotected opt./el. aggregates AXXEDGE / AXX10 The modem-sized AXX10 operates in conjunction with AXXEDGE as an end-customer device, multiplexing 4 x E1 plus 4 x 10 / 100 Base-T connections into a single optical link, feeding into AXXEDGE. The AXXEDGE is a powerful one-unit high device with 4 slots. The base-unit contains redundant selectable 230 VAC / 48 VDC power supplies, a 64 x 64 equivalent cross-connect (DXC at VC-4, VC-3, VC-12 level) and a 20 Gbps packet switch / multiprotocol router. The following SDH/PDH/LAN modules are available: 1 x 6 / 2 x STM-4 / 8 x / 2 x 63 x E1 / 21 x E1 + 3 x E3-T3 / 6 x E3-T3 / 8 x E1 8 x FE / 4 x FE / 2 x GbE (opt. & el.) / 1 x GbE (opt. & el.) Ring, meshed and linear network topologies are fully supported with appropriate SDH protection schemes (SNCI, MSP). For LAN traffi c, VLANs and Q in Q is fully supported. AXX155A The AXX155A is a one-unit high device with one empty slot. The base unit contains 2 x + 21 x E1 interfaces, redundant selectable 230 VAC / 48 VDC power supplies, a 8 x 8 equivalent cross-connect (DXC at VC-4, VC-3, VC-12 level) and a packet switch/multiprotocol router. The empty slot can be equipped with selected AXXEDGE modules as listed above. SDH and LAN functionalities are analogous to those of AXXEDGE, but limited to / FE capacities. OPE100 plug-in modules The Optera Metro PacketEdge100 is a plug-in card into the Nortel OM4000 family providing the following features: 8 x FE LAN interface ports 2 x STM1 WAN ports (internally connected) Wire Speed Ethernet Switch with SP (24 groups) VLAN support IEEE 802.1p Priority with 3 queues ETEX plug-in modules ETEX is a series of plug-in modules for the SDH multiplexer family TE6300 for transport on up to STM-64 providing the following features: Depending on chosen card, 4 x / 8 x FE (el.) or 2 x optical Gigabit Ethenet ports per card Mbit/s programmable WAN capacity for Ethernet Generic Framing Procedure (GFP) acc. ITU-T G.7041 & Link Capacity Adjustment Scheme (LCAS) Integrated Layer-2 Switch
6 Frequently asked questions about Converged Corporate Network Solutions (CCNS) As a system integrator with a worldwide customer base with planned and implemented Converged Corporate Utility Networks, ABB faces often similar customer concerns. Some of the frequently asked questions you find below. Q: Why are CCNS especially for utilities of high interest? A: Many utilities have highly valuable own assets like installed backbones, access premises and LANs including the required maintenance organization. Not many other enterprises have such a variety of different applications, ranging from teleprotection up to carrier s carrier business. By using these own assets, cash-out to external service providers (e.g. for leased lines) can be reduced, the network availability and reliability will increase and the dependencies from third parties will be minimized. Selling communication capacity to external customers may lead to extra revenues. Q: What are the most important aspects that we have to consider when planning our Corporate Utility Network? A: Clearly distinguish between physical and logical network topology. A traffic matrix of today s situation and the projected network use in e.g. fi ve-years time is the key. Major strategic decisions (e.g. going for a centralized server infrastructure) need to be considered in a very early stage to avoid later data bottle-necks. Q: How shall our today s IT-team and the separated communication team handle the common responsibility issues in a corporate network? A: In a properly planned network there are very clear interfaces between LAN and WAN parts, that can also be used to segregate responsibilities and trace performance data. Today s network management systems with their security features, traceability and individually allocable access rights fully support clear responsibilities. Q: Each user group expects to get guaranteed bandwidth. Especially protection people can not accept any compromises for their extremely time-critical applications. How can a Corporate Network fulfill these high expectations? A: CCNS are still built on TDM technology, where the time-critical signals are transported in PDH-/SDH time slots, which are absolutely independent from the packet traffic to be carried. The remaining predefined bandwidth can be allocated to specific ports or VLANs which guarantee the required Quality of Service (QoS) also for the packet traffic. Q: What are the advantages in terms of network resilience when we use our PDH/ SDH-based WAN infrastructure for LAN interconnectivity between our various sites? A: PDH & SDH provide sophisticated traffi c protection schemes, which allow to switchover to redundant paths in less than 50 ms. This applies not only to TDM traffic but also to all the packet-oriented connections (e.g. IP) running over those links. This is, compared to the typical, traffic-affecting restauration schemes of traditional packet networks with Spanning Tree or manual reconfi guration, more than 100 times faster. Q: Shall we target to put all the Network Management System functionality into one tool? A: Finding the right level of network management system (NMS) integration is key for an efficient and flexible operation of a corporate network. It shall however be noted, that various levels of NMS functionalities had been defined exactly to ease this modularity. The tasks of an Element Manager shall never be mixed up with those of the overlaying umbrella NMS with the network view. Q: How can we make our Corporate Utility Network secure in terms of hacker attacks? A: Statistics have shown, that the biggest threats are not coming from outside hackers but from the own staff, either caused accidentially or by bad intension. Therefore, a strict handling of access rights and protection schemes is a must. To fight against outside attacks, fi rewalls and the implementation of Virtual Private Networks are two building blocks of a secure corporate network.
7 Your benefits from Converged Corporate Network Solutions Reduced cash-out for third-party WAN connections Best use of own, valuable assets Full control over network resilience Fast connectivity & service provisioning Own backbone capacity allows secure high-speed interconnectivity of LAN islands CCNS and the related NMS guarantee for clear interfaces and responsibilities with improved overall performance Improved network security Remote connectivity via secure VPN solutions Managed, centralized and fi rewallprotected routes to the outside world, e.g. for Internet access Flexible bandwidth allocation allows centralized services (e.g. servers in protected environment for internal Application Service Providing) Modern utilities all go for a state-ofthe-art, future-oriented converged infrastructure As a leading Swiss utility organization, Axpo has chosen ABB s solution for a fully converged corporate network. Via our own fi ber-optic backbone we bring LAN as well as legacy and voice traffi c to our operational headquarters in Baden near Zurich. Using the FOX and AXX product families in our sophisticated networks provides us with the required fl exibility with an optimal balance of quality and investments at reduced maintenance costs. Erich Zoller Head of AXPO s Telecom department
8 ABB Switzerland Ltd Utility Automation Systems Brown Boveri Strasse 6 CH-5400 Baden/Switzerland Phone or (Call Center) Fax e.mail utility.communication@ch.abb.com 1KHA SEN Printed in Switzerland ABB Switzerland Ltd, September The right to modifi cations or deviations due to technical progress is reserved.
9 AXXEDGE Back-up Control Center AXX10 AXX10 Main Control Center SDH Backbone / FOX-based Legacy Data like: - V.35, V.24, V.11, RS449-2 / 4 wire telephony - n x 64 k, E1 - HDSL - Protection SYNIO / SYNIF Plug-in Card connected to FOX; partially filled with 10 x E1 for LAN 20 Mbps LAN connection via backbone FOX & AXX used as combined Access & Backbone MUXs with enhanced LAN features backbone-based on mix of versatile PDH/SDH MUXs of the FOX & AXX family Linking two Control Centers with 20 Mbps LAN. Two nearby places (connected with AXX10) need some LAN and E1 connectivity All other Legacy & Voice interfaces including Protection are provided by FOX interface cards
10 S/S A AXX155 S/S B P/S II Headquarter & SCADA Center S/S C Branch Office AXX155 P/S I AXX equipments can act as fully / partially filled feeders into backbones (any make) over distances of more than 60 km Any-to-any high-capacity LAN connectivity for stations outside the SDH backbone with additional needs for up to 12 x E1 links per place are covered with Stations with significant LAN traffic but with not more than 4 x E1 are well served with AXX155
11 6 AXX155A AXX155A E1 E1 E3/T3 /4/16 GbE FE AXXEDGE STM-4 AXXEDGE AXXEDGE 6 STM-4 AXXEDGE AXXEDGE AXX155 AXX10 AXX10 AXX10 AXX155 E1 FE E1 FE The AXX family supports linear, ring and meshed networks for IP & TDM The AXX family is the ideal complement to other ABB communication devices either in the Backbone, Edge or Access level, depending on the traffic & application requirements The modular concept provides high flexibility in terms of traffic mix and bandwidth
12 OPE100/ETEX Plug-in Card LAN ports on OPE100/ETEX card n x E1, or STM-4 tributaries SDH Backbone STM-4 / 16 / 64 Fully integrated one-box solution for high-capacity backbone access High-capacity LAN connectivity for all backbone locations, e.g. for server interconnections with ASP or gateway functions Fully scalable concatenated LAN bandwith in parallel to full access to guaranteed remaining backbone capacity VLAN and QoS for dedicated services such as voice-over IP Flexibility for combinations with any other data products or access devices like AXX or FOX
13 Consolidated low-capacity LAN traffic from/to all remote places Any type of legacy or voice data incl. protection n x E1 or feeder into backbone TDM bulk-traffic n x E1 or STM-n Protected SDH Backbone STM-4 64 LEMU6 Plug-in Card LAWA4 Plug-in Card MUSIC100 Connecting the very end of the network at low speed; profit from the bandwidth on the backbone Consolidating low capacity-lan traffic from remote sites without fibre connection via DSL, using LEMU6 & MUSIC100; the solution for process & administrative LAN traffic Combine the predefined LAN bandwidth with all kind of TDM traffic, including protection signaling Provides highest level of overall traffic protection via SDH resilience mechanisms Use free SDH capacity for bulk-traffic (n x E1 or STM-n)
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