Glownet and Bossnet Gigabit Network Infrastructure for e-vlbi
|
|
|
- Imogene Gaines
- 6 years ago
- Views:
Transcription
1 Glownet and Bossnet Gigabit Network Infrastructure for e-vlbi Steven Bernstein, Lorraine Prior, James Calvin, Vineet Mehta M.I.T. Lincoln Laboratory e-vlbi Workshop 8-9 April This work is sponsored by the Defense Advanced Research Projects Agency under Air Force Contract #F C Opinions, interpretations, recommendations and conclusions are those of the authors and are not necessarily endorsed by the Department of Defense
2 Glownet and Bossnet Multi-Gigabit/sec Optical Fiber Networks Glownet Laboratory infrastructure Leased "dark fiber" COTS Gigabit Ethernet and SONET networking Wavelength Division Multiplexed (WDM) Millstone/ Haystack Lincoln Laboratory Glownet: Gigabit Lincoln Optical WDM Network MIT 230 Congress St. Bossnet DARPA-sponsored testbed Leased "dark fiber" Laboratory-built WDM transmission equipment Experimental Bossnet (Boston South Optical Network) to Washington D.C. 2
3 Outline WAN (Bossnet) MAN (Glownet) LAN Processing and Protocols Protocols 3
4 Bossnet Overview Millstone Phase 2 NGI Onramp Access Network Boston, MA Supernet Connectivity to Other High Speed Research Networks ISI-East Washington, D.C. Phase 1 New York, NY ~850 km optically amplified fiber paths fiber leased from Qwest Transmission testbed for Gbps++ efforts (WDM, short pulse, new formats, mixed usage) Connectivity to NGI (Next Generation Internet) and other projects Application demonstration medium for Gbps+ uses 4
5 Supernet 5
6 Bossnet Amplifier Locations Boston Stamford New York City Framingham Newark Providence Trenton Greenhill Philadelphia New London Washington DC 6 Perryville Baltimore Wilmington New Haven Dark fiber by
7 Obstacles to Overcome to Increase Data Capacity Noise - number one issue regardless of transmission format Distortion Intensity independent polarization mode dispersion (PMD) intersymbol interference (ISI) Intensity dependent self-phase modulation (SPM) cross phase modulation (XPM) Timing jitter Gordon-Haus effect causes a nonlinear mixing of signal and noise
8 Bossnet Hut Transmission Hardware OC-3 3R ASE-FG DCF 1510 Drop Port Monitor & Control Points DCF ASE-FG 1510 Drop Port OC-3 3R Monitor & Control Computer Modem Telco to Lincoln Lab Each hut has an erbium doped fiber amplifier (EDFA) pair, dispersion compensating fiber (DCF), and amplified spontaneous emission rejection fiber grating (ASE-FG) per direction Some huts have 2x2 switches providing loop-back capability to allow experiments to be performed from a single location OC-3 at 1510 nm is a fully regenerated private channel 8
9 Gain Flattening for BOSSNET -10 Optical Power (db) Optical Power (db) Wavelength (nm) Wavelength (nm) Before After Measurements made over 570 km Erbium fiber amplifier gain profile causes non-uniform signal to noise Gain flattening filters installed at most huts Negligible change in maximum signal to noise Uniform signal to noise over band Allows WDM 9
10 Outline WAN (Bossnet) MAN (Glownet) LAN Processing and Protocols Lessons Learned & Summary 10
11 MIT-Lincoln Boston Area (Glownet) Fiber Optic Infrastructure 'Dark' fiber infrastructure in place with terabit/sec capacity Multi-gigabit/sec network equipment deployed Shared resource with Lincoln, MIT campus, Haystack Operational and new applications Voice, data, video New applications radar, VLBI, etc. Research Networking Transmission ONRAMP, Bossnet 11 Low loss, low dispersion fiber Operational & New Applications Commercial: 1-40 Gbps per wavelength Research in Networking & Transmission Research: > 100 Gbps per wavelength at longer distances Wavelength Division Multiplexing Total bandwidth > 1 THz
12 Glownet Dark Fiber Millstone/ Haystack (6) NeesCom (2) NEON (2) MIT Campus 230 Congress St. Boston Nstar (2) Lincoln Laboratory 12 NStar (6) (#)= # of fibers Bossnet Qwest (4)
13 GLOWNET Phase I Networking Equipment Millstone (RPE Building) Lincoln Lab Lexington Cisco 1500 WDM & Transponders Wavelength Transponders MUX 2 GigE (Jumbo Frames) Boston Cisco 1500 WDM & Transponders Wavelength Transponders MUX 2 GigE (Jumbo Frames) 2 GigE (Jumbo Frames) OC-48 Optical Amplifiers (Ditech) OC /100 Ethernet Growth Growth 12 10/100 Ethernet Data Mux Cisco Data Mux Cisco
14 Outline WAN (Bossnet) MAN (Glownet) LAN Processing and Protocols Lessons Learned & Summary 14
15 Millstone Hill Fiber Infrastructure Haystack Radar (HAY) Haystack Auxiliary Radar (HAX) Millstone Hill Radar (MHR) Fiber Infrastructure RPE Building To Westford To Boston 15
16 The Whole Path from Haystack to GGAO 16
17 Outline WAN (Bossnet) MAN (Glownet) LAN Processing and Protocols Lessons Learned & Summary 17
18 ~1 Gbps TCP/IP Demonstration TCP/IP data transmitted from Boston to Washington at 990 Mbps between two DEC Alpha workstations Transponders convert the optical network interface card output to a transparent channel within Bossnet Albany BOSTON Providence, RI New York, NY Philadelphia, PA GBE Transponder 850 nm 1558 nm BOSSNET Bit rate-length product was 1.0 Tb-km/s (Initial results summer 2000) TCP flow switching: Loopback Boston New London 18 GBE Transponder Washington, D.C. 850 nm 1558 nm
19 MTU & Receiver Window Tuning Delay Path [BOSSNET] Data Source GbE GbE Data Sink Transponder 1 Transponder 2 Host 1 Host 2 Typical 19
20 Onramp Overview Features: WDM Feeder Ring Covers sq. mi Tbps capacity Configurable Optics Electronic Routing IP over WDM High speed distribution networks (1-10 Gbps) Optical switching Dynamic wavelength provisioning Flow switching Unidirectional or Asymmetric flows Protection from link failures Objective: Aggregation and distribution of data traffic from high rate users, sensors, or LANs to other users, LANs or Backbone Networks 20
21 TCP Flow Switch Experiment Access Node #1 to Access Node #3 Access Node #2 GbE Control / IP Router 1 OADM 1 OADM 2 Control / IP Router 2 GbE Fixed λ Xponder Fixed λ Xponder Delay Path [BOSSNET] Fixed λ Xponder Tunable λ Xponder Tunable λ Xponder Fixed λ Xponder Splitter GbE GbE Control / IP Path GbE GbE Workstation #1 Flow Switched Path Workstation #2 21
22 TCP Flow Switching Bytes Flow Switch Flow switch with standard TCP implementation. Packets arrive out of order at receiver False congestion indication generated Congestion avoidance limits sender rate Degrades Throughput Time [hh:mm:ss] Flow switch with modified TCP implementation. Time stamp option used to recover from false congestion indications Throughput degradation avoided Bytes Flow Switch Time [hh:mm:ss] 22
23 Outline WAN (Bossnet) MAN (Glownet) LAN Processing and Protocols Lessons Learned & Summary 23
24 Lessons Learned (so far) Be patient Months are needed to implement a new point-point fiber link with compatible network equipment Numerous "air gaps" must be closed Make sure someone maintains a detailed link and network equipment block diagram (e.g., Alan Whitney) Test links and network equipment early Use as much commercial equipment as possible Network equipment is almost standardized But jumbo Ethernet frames are not Be prepared to rely on the generosity of others Loaned equipment will work as well as your own and usually arrives sooner Be generous sharing your own equipment You will ultimately be rewarded! 24
25 Looking Ahead How to implement gigabit/sec services "on demand"? Global Metropolitan, e.g., Onramp Program Local How to assure compatible networking and transport for all intermediate links? jumbo frames flow switching Plan now to get "last kilometer" and "last meter" fiber in place Plan now to be sure user equipment can maintain gigabit/sec transfers end-to-end hardware protocols 25
26 Summary Networking and transport technology is available for global evlbi but not always where you want it when you want it Glownet and Bossnet enable early real-time evlbi experiments Lessons have been learned 26
27 Backup 27
28 Bossnet Objectives Provide an infrastructure for wide area optical link and network research Transmission Demonstrate increased capacity through the use of novel waveforms and advanced optical node technology (TDM and WDM) Study propagation effects and mitigation techniques for very high rates over long distances Investigate performance of analog transmission Maintain uninterrupted OC-48 transmission on one wavelength Networking Demonstrate wide area all-optical network management and control techniques Interconnect other Gbps testbeds over transparent link Study impact of large Bandwidth-Delay products on transport protocols Applications Provide an infrastructure for Gbps research applications 28
29 Framingham Hut 29
30 Hut Hardware Laboratory 230 Congress Street, Boston 30
31 Desirable Gbps LAN Properties Network switches that support jumbo frames Maximum Transmission Unit (MTU) = 9216 bytes Network equipment that supports out of band management Remove management traffic from data links Network switches with diverse media interfaces GBICs allow SX and LX connections Copper RJ-45 for workstation connections 31
32 HAY GigE HAX Utility & Display 10/100 GigE VLAN GigE Switch VLBI VLAN GigE Switch LX Millstone (radar control) Glownet Infrastructure Westford 1 km VLAN GigE Switch Millstone (RPE Building) 2 GigE (Jumbo frames) VLAN GigE Switch 10/100 Ethernet Transponders OC-48 Data Mux Wavelength MUX Growth Bossnet to DC 230 Congress St. Boston Processing Center Computers Lincoln VLAN GigE Switched Infrastructure Lincoln Laboratory MIT OC-48 Router OC-48 Bossnet Transponder WDM 32
Key Aspects of evlbi Network Design with Emphasis Between BoSSNET s POP at ISI-E and the GGAO at GSFC
Prepared by J. Patrick Gary Network Projects Leader Earth and Space Data Computing Division/Code 930 NASA Goddard Space Flight Center pat.gary@gsfc.nasa.gov 301-286-9539 September 25, 2001 1 Preface All
Introduction To Optical Networks Optical Networks: A Practical Perspective
Introduction To Optical Networks Optical Networks: A Practical Perspective Galen Sasaki Galen Sasaki University of Hawaii 1 Galen Sasaki University of Hawaii 2 Galen Sasaki University of Hawaii 3 Telecommunications
MASSACHUSETTS INSTITUTE OF TECHNOLOGY HAYSTACK OBSERVATORY WESTFORD, MASSACHUSETTS July 2002
MASSACHUSETTS INSTITUTE OF TECHNOLOGY HAYSTACK OBSERVATORY WESTFORD, MASSACHUSETTS 01886 TO: FROM: SUBJECT: Distribution Alan R. Whitney 12 July 2002 11 July 2002 e-vlbi telecon summary Telephone: 978-692-4764
REDUCING CAPEX AND OPEX THROUGH CONVERGED OPTICAL INFRASTRUCTURES. Duane Webber Cisco Systems, Inc.
REDUCING CAPEX AND OPEX THROUGH CONVERGED OPTICAL INFRASTRUCTURES Duane Webber Cisco Systems, Inc. Abstract Today's Cable Operator optical infrastructure designs are becoming more important as customers
Optical networking technology
1 Optical networking technology Technological advances in semiconductor products have essentially been the primary driver for the growth of networking that led to improvements and simplification in the
Next Generation Internet Program
Next Generation Internet Program Bert Hui Hilarie Orman Mari Maeda Approved for Public Release, Distribution Unlimited 1 GOVERNMENT-WIDE NGI GOALS NSF NIH DARPA NASA NIST Goal 1 Goal 2.1 Goal 2.2 Goal
Internet Traffic Characteristics. How to take care of the Bursty IP traffic in Optical Networks
Internet Traffic Characteristics Bursty Internet Traffic Statistical aggregation of the bursty data leads to the efficiency of the Internet. Large Variation in Source Bandwidth 10BaseT (10Mb/s), 100BaseT(100Mb/s),
Beykent University Network Courses
/8/24 Beykent University Network Courses Module 3 : Optical Networks and Systems Part kaanavsarasan.weebly.com November 24 November 24 Course Outline Introduction to Optics Components of Optical Networks
Lambda Networks DWDM. Vara Varavithya Department of Electrical Engineering King Mongkut s Institute of Technology North Bangkok
Lambda Networks DWDM Vara Varavithya Department of Electrical Engineering King Mongkut s Institute of Technology North Bangkok vara@kmitnb.ac.th Treads in Communication Information: High Speed, Anywhere,
Simple Optical Network Architectures
Simple Optical Network Architectures Point to Point Link The simplest optical communication system is that linking two points. The length of such links may be a small as 100 m for say, a computer data
S.R.M. University Faculty of Engineering and Technology School of Electronics and Communication Engineering
S.R.M. University Faculty of Engineering and Technology School of Electronics and Communication Engineering Question Bank Subject Code : EC459 Subject Name : Optical Networks Class : IV Year B.Tech (ECE)
Introduction to Optical Networks
Introduction to Optical Networks P. Michael Henderson mike@michael-henderson.us 1 Agenda The physics of light Laser and photodetector operation Characteristics of optical fiber Optical amplifiers SONET
Alcatel 1696 Metro Span. Metropolitan DWDM System
Alcatel 1696 Metro Span Metropolitan DWDM System In metropolitan areas, the need for higher bandwidth and valueadded services is becoming increasingly critical. Service providers must find flexible and
CISCO WDM SERIES OF CWDM PASSIVE DEVICES
DATA SHEET CISCO WDM SERIES OF CWDM PASSIVE DEVICES Cisco Systems introduces its second generation of coarse wavelength-division multiplexing (CWDM) passive devices boasting increased functions and improved
Open Cloud Interconnect: Use Cases for the QFX10000 Coherent DWDM Line Card
Open Cloud Interconnect: Use Cases for the QFX10000 DWDM Delivering Scale, Security, and Resiliency to Metro, Regional, and Long-Haul Data Center Interconnect 1 Open Cloud Interconnect: Use Cases for the
GigE & 10GigE Ethernet Technology Overview & Testing Approaching
GigE & 10GigE Ethernet Technology Overview & Testing Approaching Ray Lanier ray.lanier@ccairep.com Concord Communications Associates, Inc. 214 South Main Street Concord, NH 03301 Tel: 603-228-8627 Fax:
Electromagnetic Spectrum
Electromagnetic Spectrum PCS FMRadi o/ TV Short wave Radi o AM Broadcast Ul trasoni c Soni c Vi si ble Li ght Infrared Li ght Ul travi ol et X- Rays Frequency 1 khz 1 M Hz 1 G Hz 1 THz 1 Y Hz 1 ZHz Wavelength
Introduction to Networks
Introduction to Networks Network Topology How we interconnect network users Network Hierarchy The connection between network topology and geographical size Telecommunication (Phone Networks) Circuit Switching
MAN/WAN Interconnection Options for SBC. Vish Ramamurti George Young
MAN/WAN Interconnection Options for SBC Vish Ramamurti George Young 1 MAN/WAN interconnection Customer Premises Transparent LAN service Router Router Private Net NxDS1 Building Closet DSU DSU To ISP POP
CONVERGE EXTEND SWITCH AGGREGATE CONNECT CONNECT SWITCH CONVERGE EXTEND AGGREGATE. BTI 7000 Series BTI Product Brochure. the network you need.
SWITCH SWITCH BTI 7000 Series Product Brochure BTI 7000 the network you need. the network you need. the simplicity you want The optical network edge where services connect users must scale rapidly to address
A TRANSPONDER FOR GIGABIT ETHERNET OVER WDM
A TRANSPONDER FOR GIGABIT ETHERNET OVER WDM D.A. Schupkel and S. Weigert l and O. Jahreis 2 1 Munich University of Technology Institute of Communication Networks 80290 Munich, Germany Tel.: +4989289-23511,
Looking for a Smarter City? Eugene Botes RCDD/NTS Technical Manager MEPA CommScope
Looking for a Smarter City? Eugene Botes RCDD/NTS Technical Manager MEPA CommScope Agenda What is a Smart City? Key Applications for the Smart City Designing the Wired and Wireless Infrastructure Technology
Network Layer Flow Control via Credit Buffering
Network Layer Flow Control via Credit Buffering Fibre Channel maintains throughput in the data center by using flow control via buffer to buffer credits Nominally switches provide credit buffering up to
Lowering the Costs of Optical Transport Networking
Lowering the Costs of Optical Transport Networking Deploying your own network even in a slowing economy with shrinking budgets! Rob Adams, VP Product Marketing/Product Line Management Who is Ekinops Private
Computer Networks. Lecture 8 Local Area Network, IEEE 802.x
Computer Networks Lecture 8 Local Area Network, IEEE 802.x Local area network A local area network (LAN) is a computer network that interconnects computers within a limited area such as a home, school,
FIBER OPTIC NETWORK TECHNOLOGY FOR DISTRIBUTED LONG BASELINE RADIO TELESCOPES
Experimental Astronomy (2004) 17: 213 220 C Springer 2005 FIBER OPTIC NETWORK TECHNOLOGY FOR DISTRIBUTED LONG BASELINE RADIO TELESCOPES D.H.P. MAAT and G.W. KANT ASTRON, P.O. Box 2, 7990 AA Dwingeloo,
Optical Technologies in Terabit Networks. Dr. John Ryan Principal & Chief Analyst RHK
Optical Technologies in Terabit Networks Dr. John Ryan Principal & Chief Analyst RHK Optical Internetworking Forum, Atlanta, June 5th, 2000 IP Traffic Is Exploding... RHK's Internet Traffic Forecast 18,000,000
Wide Area Networks :
Wide Area Networks : Backbone Infrastructure Ian Pratt University of Cambridge Computer Laboratory Outline Demands for backbone bandwidth Fibre technology DWDM Long-haul link design Backbone network technology
OptiDriver 100 Gbps Application Suite
OptiDriver Application Suite INTRODUCTION MRV s OptiDriver is designed to optimize both 10 Gbps and applications with the industry s most compact, low power, and flexible product line. Offering a variety
DWDM Topologies CHAPTER. This chapter explains Cisco ONS dense wavelength division multiplexing (DWDM) topologies.
CHAPTER 12 This chapter explains Cisco ONS 15454 dense wavelength division multiplexing (DWDM) topologies. Note The terms "Unidirectional Path Switched Ring" and "UPSR" may appear in Cisco literature.
Optical Networking. Applications
Applications Allied Telesis Gigabit through 40G optical transport solutions empower IP/Ethernet service providers with a solution that leverages a common family of products and technologies from the customer
METRO/ENTERPRISE WDM PLATFORM
F L A S H W A V E METRO/ENTERPRISE WDM PLATFORM SCALABLE OPTICAL TRANSPORT Metro optical transport networks are increasingly defined by the unpredictable convergence of voice, data and video technologies.
Optical Loss Budgets
CHAPTER 4 The optical loss budget is an important aspect in designing networks with the Cisco ONS 15540. The optical loss budget is the ultimate limiting factor in distances between nodes in a topology.
Name of Course : E1-E2 CFA. Chapter 15. Topic : DWDM
Name of Course : E1-E2 CFA Chapter 15 Topic : DWDM Date of Creation : 28.03.2011 DWDM 1.0 Introduction The emergence of DWDM is one of the most recent and important phenomena in the development of fiber
What is the fundamental purpose of a communication system? Discuss the communication model s elements.
What is the fundamental purpose of a communication system? The fundamental purpose of a communication system is the exchange of data between two parties. Discuss the communication model s elements. The
10-Gigabit Ethernet DWDM OTN PIC Optical Interface Support (T640 Router)
1-Gigabit Ethernet DWDM OTN PIC Optical Interface Support (T64 Router) Table 1 describes the optical interfaces supported on the 1 Gigabit Ethernet DWDM OTN PIC. Table 1: Optical Interface Support for
Building 10-Gbps Networks: A few observations on the national and regional scales in the U.S.
Building 10-Gbps Networks: A few observations on the national and regional scales in the U.S. Steve Corbató corbato@internet2.edu Director, Network Initiatives, Internet2 & Visiting Fellow, Center for
10-Gigabit Ethernet DWDM OTN Optical Interface Specifications
1-Gigabit Ethernet DWDM OTN Optical Interface Specifications M12 router and T Series routers support the following 1-Gigabit Ethernet DWDM OTN PIC transceiver. To determine DWDM OTN support, see the cables
Communication Networks
Communication Networks Chapter 3 Multiplexing Frequency Division Multiplexing (FDM) Useful bandwidth of medium exceeds required bandwidth of channel Each signal is modulated to a different carrier frequency
SWITCHlambda Update Felix Kugler, SWITCH
SWITCHlambda Update Felix Kugler, SWITCH 2003 SWITCH Topics SWITCHlan network topology & technology 10Gigabit Ethernet testing on DWDM links Single Fiber Gigabit Ethernet 2 SWITCHlan topology by end of
Multicasting with Physical Layer Constraints in Metropolitan Optical Networks with Mesh Topologies
Multicasting with Physical Layer Constraints in Metropolitan Optical Networks with Mesh Topologies Tania Panayiotou KIOS Research Center for Intelligent Systems and Networks Dept Electrical and Computer
Optical Transport Platform
Optical Transport Platform Bandwidth expansion on demand MICROSENS fiber optic solutions - intelligent, reliable, high-performance Optical Transport Platform The MICROSENS Optical Transport Platform provides
A Review of Traffic Management in WDM Optical Networks: Progress and Challenges
www.ijecs.in International Journal Of Engineering And Computer Science ISSN:2319-7242 Volume 6 Issue 8 August 2017, Page No. 22309-22313 Index Copernicus value (2015): 58.10 DOI: 10.18535/ijecs/v6i8.13
Module 1. Introduction. Version 2, CSE IIT, Kharagpur
Module 1 Introduction Version 2, CSE IIT, Kharagpur Introduction In this module we shall highlight some of the basic aspects of computer networks in two lessons. In lesson 1.1 we shall start with the historical
Real Time Implementation of Data Communication using Ipv4Telecom Network through Sdhstm-4 Digital Transmission Wan
RESEARCH ARTICLE Real Time Implementation of Data Communication using Ipv4Telecom Network through Sdhstm-4 Digital Transmission Wan SharadaOhatkar*, Sanjay Thakare**, RachnaChavan*, Mugdha Kulkarni *,
WAN Technology & Design. Dr. Nawaporn Wisitpongphan
WAN Technology & Design Dr. Nawaporn Wisitpongphan 1 WAN Connection Modules 2 WAN Comparison 3 Integrated Services Digital Network (ISDN) All-digital phone line connection Technology since 1980s Allow
CSIS Frequency Division Multiplexing. Basic Types of Multiplexing. Frequency Division Multiplexing. Frequency Division Multiplexing.
Multiplexing: combining information streams from multiple sources for transmission over a shared medium Demultiplexing: separating a combination back into individual information streams CSIS 4222 Ch 11:
Zero touch photonics. networks with the cost efficiency of WDM. András Kalmár Péter Barta 15. April, Szeged
Zero touch photonics Combining the flexibility of TDM networks with the cost efficiency of WDM András Kalmár Péter Barta 15. April, 2009 - Szeged Outline Drivers Flexibility and transparency benefits Tunable
Part 2! Physical layer! Part2: Lecture 01! Optical technologies! Part2: Lecture 01! Optical technologies! 19/04/16
Part 2 Part2: Lecture 01 Optical technologies Optical networks: Technologies Hybrid networking, network virtualization Traffic engineering (Marijke Kaat) OpenFlow and SURFnet (Ronald van der Pol) Physical
DEPARTMENT OF ELECTRONICS AND COMMUNICATION ENGINEERING M.E., - COMMUNICATION SYSTEMS FIRST YEAR / FIRST SEMESTER - BATCH: 2014-2016 CU7103 OPTICAL NETWORKS 1 SYLLABUS CU7103 OPTICAL NETWORKS L T P C 3
How Cisco IT Built Local Access Ring at Headquarters
Cisco IT Case Study April 2012 Local Access Ring How Cisco IT Built Local Access Ring at Headquarters Self-managed DWDM ring lowers long-term costs and shortens wait for circuits. Challenge EXECUTIVE SUMMARY
S Optical Networks Course Lecture 7: Optical Network Design
S-72.3340 Optical Networks Course Lecture 7: Optical Network Design Edward Mutafungwa Communications Laboratory, Helsinki University of Technology, P. O. Box 2300, FIN-02015 TKK, Finland Tel: +358 9 451
WDM Industrial Products
Faulty of Engineering Dept. of Elect. & Computer Engineering EE5912 High Speed Networks WDM Industrial Products Lecturer: Dr. Mohan Gurusamy Names Matric Numbers Email Wei Nan HT042584N weinan@nus.edu.sg
Chapter 9 Introduction to Networks
Chapter 9 Introduction to Networks 9.1 Uses of a network Networks are used in many situations. We can see networks in places like offices, airports and factories. In fact we use networks in many situations
OFFH-CDM ALL-OPTICAL NETWORK
Patent Title: OFFH-CDM ALL-OPTICAL NETWORK Inventor: FOULI K., MENIF M., LADDADA R., AND FATHALLAH H. Status: US PATENT PENDING, APRIL 2008 Reference Number: 000819-0100 1 US Patent Pending: 000819-0100
AON Agile Optical Networks Measuring the Optical Signal-to-Noise Ratio in Agile Optical
White Paper AON Agile Optical Networks Measuring the Optical Signal-to- Ratio in Agile Optical Introduction The mainstreaming of consumer broadband and the accelerated growth of enterprise traffic have
Recent Developments in Optical Networking
Recent Developments in Optical Networking Raj Jain The Ohio State University Columbus, OH 43210 Nayna Networks Milpitas, CA 95035 Email: Jain@ACM.Org http://www.cis.ohio-state.edu/~jain/ 1 Overview! All-Optical
Lambda Tunnel A Pilot Optical Service Felix Kugler
Lambda Tunnel A Pilot Optical Service Felix Kugler 2005 SWITCH SWITCHlan Network 2005 1150 km of dark fiber deployed; 10 year leases from SBB and 20 year IRU from Fibre Lac Our standard
MA Yan, BUPTCC, ~16 BUPT Information Network Center LAN LAN. Transmission system
LAN LAN Transmission system 1 Campus 1 2 Office 3 Office 2 Office 1 3 2 1 3 2 1 3 2 1 3 2 1 3 2 1 3 2 1 3 2 1 3 2 1 3 ... 4 Local Loop End Office Trunks End Office End Office End Office Tandem Office LD
SFP GBIC XFP. Application Note. Cost Savings. Density. Flexibility. The Pluggables Advantage
SFP GBIC XFP The Pluggables Advantage interfaces in the same general vicinity. For example, most major data centers have large Ethernet (and Gigabit Ethernet) networks with copper, multimode and single-mode
Overview of Networks
CMPT765/408 08-1 Overview of Networks Qianping Gu 1 Overview of Networks This note is mainly based on Chapters 1-2 of High Performance of Communication Networks by J. Walrand and P. Pravin, 2nd ed, and
Outline: Connecting Many Computers
Outline: Connecting Many Computers Last lecture: sending data between two computers This lecture: link-level network protocols (from last lecture) sending data among many computers 1 Review: A simple point-to-point
COMPONENTS OF DATA COMMUNICATION
COMPONENTS OF DATA COMMUNICATION ANALOG AND DIGITAL TRANSMISSION An analog signal is one that is continuous with respect to time and may take on any value within a given range of values. Eg Human voice.
AMCC s Pemaquid device enables the cost-effective implementation of Metro-Ethernet for Optical-Based Metro and Long-Haul Transport Networks
AMCC s Pemaquid device enables the cost-effective implementation of Metro-Ethernet for Optical-Based Metro and Long-Haul Transport Networks Mark Donovan (Senior PMM) and Keith Conroy (Sr. Solutions Architect)
Data Center & Cloud Computing DATASHEET. FS.COM WDM Transport Networks Data Center & Cloud Computing Infrastruture Solutions
Data Center & Cloud Computing DATASHEET FS.COM WDM Transport Networks Data Center & Cloud Computing Infrastruture Solutions REV.1.0 2018 01 Overview About the Features Efficient Usage Supports up 18 to
NT1210 Introduction to Networking. Unit 5:
NT1210 Introduction to Networking Unit 5: Chapter 5, Ethernet LANs 1 Objectives Identify the major needs and stakeholders for computer networks and network applications. Identify the classifications of
MASSACHUSETTS INSTITUTE OF TECHNOLOGY HAYSTACK OBSERVATORY WESTFORD, MASSACHUSETTS November 2003
MASSACHUSETTS INSTITUTE OF TECHNOLOGY HAYSTACK OBSERVATORY WESTFORD, MASSACHUSETTS 01886 TO: FROM: SUBJECT: Distribution David Lapsley 25 November 2003 17 November 2003 e-vlbi telecon summary Telephone:
Practical Optical Networking
1 of 22 11/15/2007 6:04 PM Practical Optical Networking Outline 1. Evolution of national R&E infrastructure 2. Physical and architectural aspects of optical nets 3. Hybrid networking 4. Testing 2 of 22
Optical Networks. A Practical Perspective. Rajiv Ramaswami Kumar N. Sivarajan MORGAN KAUFMANN PUBLISHERS
Optical Networks A Practical Perspective Second Edition Rajiv Ramaswami Kumar N. Sivarajan к MORGAN KAUFMANN PUBLISHERS AN IMPRINT OF ACADEMIC PRESS A Division of Harcourt, Inc. SAN FRANCISCO SAN DIEGO
Service-centric transport infrastructure
Analyst Day October 10, 2006 Vinay Rathore Director of Marketing Service-centric transport infrastructure Ciena Proprietary Key drivers for the optical infrastructure Services Scalability Cost 2006 Ciena
Network Connectivity and Mobility
Network Connectivity and Mobility BSAD 141 Dave Novak Topics Covered Lecture is structured based on the five elements of creating a connected world from the text book (with additional content) 1. Network
Introduction Metro Area Optical Networks Components of a MAN Metro Service POP Core MAN Services Access Services Metro Optical Services Service POP
Introduction Metro Area Optical Networks Components of a MAN Metro Service POP Core MAN Services Access Services Metro Optical Services Service POP Services Core Services MAON Physical Topologies Four
Tendencias en Redes Ópticas. Michael De Leo CTO LATAM
Tendencias en Redes Ópticas Michael De Leo CTO LATAM 1 Networks for the Zettabyte Era http://www.cisco.com/en/us/netsol/ns827/networking_solutions_sub_solution.html Perspective: 10 Exabyte = 50x world
Optical Fiber Communications. Optical Networks- unit 5
Optical Fiber Communications Optical Networks- unit 5 Network Terminology Stations are devices that network subscribers use to communicate. A network is a collection of interconnected stations. A node
Transport is now key for extended SAN applications. Main factors required in SAN interconnect transport solutions are:
E Transport is now key for extended SAN applications. Main factors required in SAN interconnect transport solutions are: Native support for all SAN protocols including ESCON, Fibre Channel and Gigabit
EKINOPS 360. Dynamic Optical Transport for Metro, Regional and Long Haul SMALL FORM FACTOR LOW-POWER CONSUMPTION LEADING EDGE TECHNOLOGY
D ETAILED P RODUCT B ROCHURE SMALL FORM FACTOR LOW-POWER CONSUMPTION LEADING EDGE TECHNOLOGY Dynamic Optical Transport for Metro, Regional and Long Haul Economical 40G and 100G in the Near Term Lowering
AllWave FIBER BENEFITS EXECUTIVE SUMMARY. Metropolitan Interoffice Transport Networks
AllWave FIBER BENEFITS EXECUTIVE SUMMARY Metropolitan Interoffice Transport Networks OFS studies and other industry studies show that the most economic means of handling the expected exponential growth
IS WDM READY FOR LOCAL NETWORKS?
IS WDM READY FOR LOCAL TWORKS? by Brent Allen and Solomon Wong Nortel Networks, OPTera Metro Solutions KANATA, Canada Wavelength division multiplexing (WDM) technology, in the form of photonic networking,
Objectives. Learn how computers are connected. Become familiar with different types of transmission media
Objectives Learn how computers are connected Become familiar with different types of transmission media Learn the differences between guided and unguided media Learn how protocols enable networking 2 Objectives
Introduction to Network Technologies & Layered Architecture BUPT/QMUL
Introduction to Network Technologies & Layered Architecture BUPT/QMUL 2015-3-5 Review What is the Internet? How does it work? When & how did it come about? Who controls it? Where is it going? 2 Agenda
All-Optical IP-over-DWDM MAN Ring Network with CSMA/CP MAC Protocol
All-Optical IP-over-DWDM MAN Ring Network with CSMA/CP MAC Protocol Chien-Chun Li and Wen-Shyang Hwang Computer Network Protocol and Applications Laboratory Department of Electrical Engineering National
10 Gigabit XGXS/XAUI PCS Core. 1 Introduction. Product Brief Version April 2005
1 Introduction Initially, network managers use 10 Gigabit Ethernet to provide high-speed, local backbone interconnection between large-capacity switches. 10 Gigabit Ethernet enables Internet Service Providers
MX Ring. WDM - MUX/DeMUX. MUX/DeMUX. Features Full native mode performance Optical connectors Passive model requires no power.
WDM - MUX/DeMUX MX20-3155 Dual Channel WDM MUX/DeMUX 5 MX20-3155 is a dual channel, passive, protocol transparent, WDM multiplexer/demultiplexer which utilizes two popular WDM lambda channels of 1310nm
Part2: Lecture 01! Optical technologies!
Part2: Lecture 01! Optical technologies! Last Time! QoS Quality ofservice! Guarantees in terms of packet loss, latency and throughput! Traffic classification! Algorithms and techniques:! RR WRR! Token
Chapter 1: introduction
Chapter 1: introduction our goal: v get feel and terminology v more depth, detail later in course v approach: use Internet as example overview: v what s the Internet? v what s a protocol? v edge; hosts,
OPTICAL NETWORKS. Optical Metro Networks. A. Gençata İTÜ, Dept. Computer Engineering 2005
OPTICAL NETWORKS Optical Metro Networks A. Gençata İTÜ, Dept. Computer Engineering 2005 Introduction Telecommunications networks are normally segmented in a three-tier hierarchy: Access, metropolitan,
10- and 100-Mbps Ethernet
Ethernet Basics 10-Mbps Ethernet Three 10-Mbps Ethernet standards: 10BASE5 10BASE2 10BASE-T 10BASE2 and 10BASE5 were around more than 20 years and have been replaced by newer alternatives 10BASE-T s use
INTRODUCTION DATA COMMUNICATION TELECOMMUNICATIONS SYSTEM COMPONENTS 1/28/2015. Satish Chandra satish0402.weebly.com
INTRODUCTION DATA COMMUNICATION Satish Chandra satish0402.weebly.com The term telecommunication means communication at a distance. The word data refers to information presented in whatever form is agreed
Next Generation Networking and The HOPI Testbed
Next Generation Networking and The HOPI Testbed Rick Summerhill Director, Network Research, Architecture, and Technologies, Internet2 CANS 2005 Shenzhen, China 2 November 2005 Agenda Current Abilene Network
2. The initialization vector (IV) is used in the framework of
Advanced Network Protocols Prof. E. Damiani The exam is composed of three sections: a multiple choice and two open question ones. Please do NOT write your answers on the exam text. Rather, hand them in
Toward a Reliable Data Transport Architecture for Optical Burst-Switched Networks
Toward a Reliable Data Transport Architecture for Optical Burst-Switched Networks Dr. Vinod Vokkarane Assistant Professor, Computer and Information Science Co-Director, Advanced Computer Networks Lab University
KIBABII UNIVERSITY COLLEGE DEPARTMENT COMPUTER SCIENCE & IT ANSWER ALL QUESTIONS IN SECTION A AND ANY TWO QUESTIONS IN SECTION B
KIBABII UNIVERSITY COLLEGE DEPARTMENT COMPUTER SCIENCE & IT TITLE: DATACOMMUNICATION COURSE CODE: 223 SECTION A: 30 Marks ANSWER ALL QUESTIONS IN SECTION A AND ANY TWO QUESTIONS IN SECTION B TIME ALLOWED:
DWDM Cards. 6.1 DWDM Card Overview CHAPTER
CHAPTER 6 This chapter describes Cisco ONS 15454 dense wavelength-division multiplexing (DWDM) card features and functions. For installation and card turn-up procedures, refer to the Cisco ONS 15454 Procedure
Photonic Communications Engineering
Photonic Communications Engineering Instructor Alan Kost Email - akost@arizona.edu Office OSC 529 Office Hours Walk In or by Appointment 1 Photonic Communications Class Syllabus Engineering Class is divided
2000 Technology Roadmap Optoelectronics. John Stafford, Motorola January 17, 2001
2000 Technology Roadmap Optoelectronics John Stafford, Motorola January 17, 2001 Optoelectronic Roadmap Agenda Optoelectronics Market Overview Optical Communications Roadmap Optical Communications Technology
ET4254 Communications and Networking 1
Topic 2 Aims:- Communications System Model and Concepts Protocols and Architecture Analog and Digital Signal Concepts Frequency Spectrum and Bandwidth 1 A Communications Model 2 Communications Tasks Transmission
Communication Networks - 3 general areas: data communications, networking, protocols
Communication Networks - Overview CSE 3213 Fall 2011 1 7 September 2011 Course Content 3 general areas: data communications, networking, protocols 1. Data communications: basic concepts of digital communications
Network Management & Monitoring
Network Management & Monitoring Network Delay These materials are licensed under the Creative Commons Attribution-Noncommercial 3.0 Unported license (http://creativecommons.org/licenses/by-nc/3.0/) End-to-end
Session 3 Networks I
15.561 Information Technology Essentials Session 3 Networks I Copyright 2005 Thomas Malone, Chris Dellarocas, Stuart Madnick Acknowledgments: Slides marked SM are adapted from Stuart Madnick, MIT. Slides
A Compact, Low-power Consumption Optical Transmitter
Optical Transmitter WDM Variable Wavelength A Compact, Low-power Consumption Optical Transmitter We have developed a compact, low-power e- optical transmitter intended for constructing regional transmission