The 8-Fiber Solution for Today s Data Center

Save this PDF as:
 WORD  PNG  TXT  JPG

Size: px
Start display at page:

Download "The 8-Fiber Solution for Today s Data Center"

Transcription

1 The 8-Fiber Solution for Today s Data Center Bill Charuk, SR Product Manager, Data Center Solutions Introduction Data center infrastructure is constantly evolving. Fiber optic installations have used the same basic design for decades. However, to fulfill today s needs and be ready for tomorrow s higher speed standards, a new approach should be considered. The innovative network architecture using 8 fiber ribbons as the basic infrastructure building block instead of a 12 fiber subunit is examined to improve significantly data center design, performance, futureproofing, and cost savings. Background Until now, data center infrastructures have been based on the tried and true designs that have served the enterprise network so well for the last 30 years. This is not surprising, since the equipment used and data rates involved in data center construction were essentially extensions of existing enterprise network requirements. With the advent of more and more internet connections and an explosion in social media and mobile devices driving ever larger amounts of data around the internet, the speeds necessary to move the data have progressed as well. When data speeds were increased to 56Kbs for fax machines, most thought they would never need transmission beyond this amazing speed. In 1985 IEEE published the 10BASE2 standard for 10Mbs over thin coax. In 1993 the 802.3j committee published 10BASE-F standards for 10Mbs transmission over optical fiber. 1Gbs speeds were codified in 1998 with the adoption of the 1000BASE-X Gbit/s standard by the IEEE802.3z committee. Link aggregation was standardized in 2000 and 10Gbe in Today data centers are firmly positioned in the 40Gbe/100Gbe world with 400Gbe on the horizon. With this rapid increase in data rates, industry standards have adapted to ensure not only that the network could function, but also maintain the ability to utilize products and technologies that are cost effective and known to the end user market. In 2015Sumitomo Electric Lightwave. All rights reserved.

2 order to facilitate graceful growth in the data center, another infrastructure option needs to be considered, one that can be retrofitted to existing networks, while simultaneously supporting future growth needs and technology requirements. What and Who is Driving Data Demand? Connections to the internet are ubiquitous today, almost akin to carrier pigeons in New York City at the turn of the century. In 2015 alone, 15 billion devices will be connected to the internet and 3 billion users will access it. Faster broadband speeds, 28Mbps in 2015 versus just 7Mbps in 2010, will be considered standard. In addition, demands for higher quality media and faster downloads, from a 1 minute video download in 2010 to a 2 hour HDTV movie in 2015, are adding to the need for higher velocity data downloads. Cumulatively, each person that is or wants to be connected to the internet is driving data demand, and consequently higher and higher data rates. Of course, a great deal of data today is stored. If the data is stored, then it will need to be backed up. The exponential growth of the amount of stored data will necessarily drive the need for higher and higher speeds to perform these operations in a given amount of time. 1 nowell_01_0911.pdf citing Cisco Visual Networking Index (VNI) Global IP Traffic Forecast, , High Speed Network Migration As evidence that higher speeds are proliferating in the marketplace, Chart 1 shows the recent trend in server shipments supporting 1/10/40Gbe over the last several years. By the end of 2016, 1Gbe server port shipments will become insignificant in the marketplace. Chart 1 78 T.W. Alexander Drive, Research Triangle Park, NC

3 This migration will continue until the amount of data required to be transmitted over the internet stops growing. As already shown, the use of the internet continues to grow for a myriad of reasons and likely will not abate at any time in the near (and not so near) future. Chart 2 illustrates the number of port shipments for 40Gbe and 100Gbe ports over the same time period. Chart OFC-Panel-2-Need-For-Speed-Final Ethernet Alliance - As these charts clearly show, the number of high speed (>10Gbs) ports will grow exponentially in the coming years. It should also be noted at this point that while 40GbE and 100GbE deployments (which will be viewed as equal technologies from an infrastructure point of reference) are growing, the next step in data transmission standards is underway; to 400Gbs. Why is this important? To answer this question, we must first examine basic networking requirements of 40Gbs networks and how, in some instances, they are fundamentally different than those that operate at lower speeds. High Speed Network Fundamentals While this may not seem as a change any different than shifts to higher speeds that have occurred previously, the change for 10Gbe network to a 40Gbe network is 78 T.W. Alexander Drive, Research Triangle Park, NC

4 markedly different, unlike any that has occurred in the past. Specifically, until the advent of 40Gbs speeds, all optical transmission in premises/data center environments used serial transmission schemes. That is, the data stream consisted of information being sent one byte at a time, one after the other, at a given rate. Of course, the ability to complete this transmission and have it be able to be discerned at the receiver is a function of several system variables, most notably the speed at which the receiver is able to transmit discreet light pulses that are readily detectable at the receiver. As transmission speeds increase, serial schemes are problematic for Vertical Cavity Surface Emitting Lasers (VCSELs). The ability of the VCSEL to transmit at higher speeds, coupled with the distortion of signals by polarization mode dispersion and chromatic dispersion in the optical pathway, negates use of current VCSEL s at higher speeds in serial transmissions. However, to use higher speed lasers (which are readily available) would necessitate an unacceptable increase in the cost of transmission equipment and essentially make obsolete all installed multimode optical fiber in data center and enterprise networks. The way to utilize inexpensive VCSEL technology and meet the speed requirement is to use parallel optics. Or more simply put, aggregate several channels at lower speeds to reach higher speeds required. This is precisely what the 40G/100G standards, as adopted by IEEE 802.3ba-2010 committee, advises for networking technologies in the transmission of Ethernet frames. The standard, taken in its simplest form, identifies fiber optic link requirements for transmission at 40/100Gbs over multimode fiber. See Table 1. Table 1 78 T.W. Alexander Drive, Research Triangle Park, NC

5 However, there are obvious differences in how these speeds are achieved versus previous standards. For 10Gbs transmissions and below, serial transmission was used. In figure 1, we see that the channel consists of 1 transmission link (TX) and one receiver link (RX) both operating at 10Gbs. This is typically accomplished using a duplex LC connector as shown. Figure1-Serial Transmission When using parallel path transmissions, the single lanes are multiplied to reach an aggregate speed. As seen in Figure 2, TX and RX channels are now composed of 4 lanes each. These lanes can be comprised of individual 10Gbs or 25Gbs lanes to reach 40Gbs and 100Gbs respectively. Connectivity in this case is achieved by using MPO (Multiple- Fiber Push-On/Pull-off) connectors. An MPO connector is pictured in Figure 3. These connectors are designed to terminate and align 12 fibers simultaneously. Figure 2-Parallel Lane Configuration Figure3-MPO Connector 78 T.W. Alexander Drive, Research Triangle Park, NC

6 The 12 fiber MPO connectors have been in use in the network for some time and are well known. However, there is an inherent problem with their use when installed in a parallel path system. As noted from Figure 4, there are 4 TX, 4RX and 4 unused or dark fibers per connection. While not a technical problem in and of itself, this scheme presents a problem to the network operator. Figure 4-MPO Channel Assignments for Parallel Transmission The problem arises when a 40G/100G solution is required to be implemented using a 12 fiber infrastructure. As seen in Figure 4, there are 4 unused fibers in the center of the connector related directly to every 12 fiber subunit in the cable/cables being used. This equates to a 33% loss in the fiber network utilization. The loss of 33% of the physical network can be a costly concern. While there are ways to overcome this issue, which will be explored later, they do not always result in the most cost effective or best optical pathway for the data center network. Essentially, with the new standards, parallel transmission schemes provided for by the IEEE standards clearly identify the need for an eight fiber based solution. This is a paradigm shift from the way networks have been designed and installed for the past 30 years in enterprise networks and in most data centers. Physical Layer Solutions Getting to 8 Fibers The first eight fiber solution must encompass existing networks. The question at hand is how we achieve use of all the fibers in an existing 12 fiber based network. This methodology is well known and readily available. The basic premise of this work around is that the existing 12 fiber groups, usually with a minimum fiber count of 24, are rearranged into a subset of 8 fiber groupings. Therefore 24 fibers in two 12 fiber 78 T.W. Alexander Drive, Research Triangle Park, NC

7 groupings are rearranged into three 8 fiber groups, thereby using all the fibers in the network. This can be accomplished practically in one of two ways. The first is to use a specifically designed cable harness that has two 12 fiber connectors on one end and three 12 fiber MPO connectors on the other end with only 8 fibers populated in the necessary locations to connect the parallel channels. This method has a disadvantage in that the harnesses can be unwieldy and difficult to dress into the fiber termination hardware due to the transition from two subunits to three. A more popular method is shown in Figure 5. In this scenario, the conversion occurs in a cassette/conversion module, which is mounted in a standard fiber optic patch panel. Note the two 12 fiber MPO connections at the rear and three 8 fiber MPO connections at the front of the module. This can also be accomplished with a single 24 fiber MPO at the rear of the module. Figure 5-8 Fiber Conversion Cassette Figure 6 below (next page) shows how this is accomplished internal to the cassette/conversion module. 78 T.W. Alexander Drive, Research Triangle Park, NC

8 Figure 6 It must also be remembered that when installing this conversion on a 12 fiber infrastructure, this conversion must occur on both the TX and RX sides of the channel, so the additional costs for the two conversions must be added to the planning of a 40/100G network for every link. The question may arise, if technology exists that can convert the ubiquitous 12 fiber infrastructure to parallel transmission standards, why do I need to consider an 8 fiber infrastructure? There are two areas that need to be examined further that will explain why the 8-Fiber Solution makes more sense. These will be highlighted as we discuss the 8- Fiber Solution further. 8 Fiber Infrastructures for Data Center Applications The eight fiber solution for data centers is essentially a tailored network infrastructure designed to support 40/100G (and 400G) networks in the most efficient and cost effective manner. The major difference is obviously that the subunits of the cable infrastructure are based on 8 fiber count instead of T.W. Alexander Drive, Research Triangle Park, NC

9 By designing a network using the 8 fiber subunits as the building blocks, direct connections without conversions are now achieved. The only item in which care must be taken is the connection at the end equipment the 8 fibers terminated in the connecting MPO connector must be aligned as shown in Figure 4, with the operating fiber separated by four blank fiber spaces (Note: this space is necessary so the fibers can attach to the TOSA and ROSA in the end equipment transceiver). This segregation can be easily made using a preterminated patch cord or a field installable Splice-On MPO connector of the correct type (i.e. one specifically designed for this application). There are several advantages to this type of installation. The first is cost. By installing a 12 fiber system for 40/100G systems, the operator will incur costs for the conversion at either end of the system. Depending on the method used, these costs can be over $100 per port. In a large installation, these costs can be a significant part of the overall fiber build. The main advantage from a technical standpoint requires review of the standards for attenuation as shown in Table 1. This time, focus needs to be not on the distances allowed, but the Maximum Channel Connector Loss. Reverting to the discussion surrounding using 12 fiber subunits and the conversion required, in either method of conversion, an extra connection is introduced on both the TX and RX ends. The conversion method adds TWO extra connector loss points to the optical pathway. Link loss savings can be 0.2 to 0.5dB by removing these two connections! As we can see above, the longer the distance, the less connector loss is allowed in the link. In order to achieve the lowest optical loss in the system, the 8- Fiber Solution should be employed. How is the 8 Fiber Solution Implemented? We have already shown that the connectivity portion of this solution is accomplished by use of 8 fiber MPO connectors designed for use in parallel path systems; however the cable subunit construction is the major consideration and the largest departure from typical enterprise structures. Cables with subunits built on 8 fiber multiples need to be 78 T.W. Alexander Drive, Research Triangle Park, NC

10 employed. For smaller fiber count cables, this is easily achieved by substituting 8 fibers in a buffer tube or under a single jacket to achieve this goal. As fiber counts climb, however, this can become problematic from an installation standpoint. To achieve higher fiber counts in loose tube cables, more buffer tubes must be employed to hold the requisite number of fibers, resulting in larger and larger cables. Additionally, these cables typically have a larger diameter than corresponding high fiber count ribbon cables. It is difficult to put multiples of 8 fibers in a loose tube cable for a number of reasons. First, most cables have been qualified both mechanically and in accordance with UL testing with up to, but not exceeding, 12 fibers per tube. Additionally, industry color code standards would necessitate up to half of the fibers to be striped. This would make it difficult and time consuming to terminate the fibers correctly in the field. What is the answer then? The best cable solution for 8 fiber systems is ribbon cables. Optical fiber ribbon cables have been in use for many years and are available in the same NEC categories as loose tube cables. Due to the unique construction of ribbon cables, most have been qualified with ribbons based on 8 fiber counts, as well as the more well-known 12 fiber counts. For higher fiber count cables especially (usually >96 fiber) 16 fiber, 24 fiber, and 32 fiber ribbons are available. In some cases, the ribbons can be separated in the field into 8 fiber component ribbons. This feature markedly improves productivity while doing terminations in the field since ribbonizing, as would be required for loose tube termination, is not necessary. Figure 7 shows the cross section of a 96 fiber ribbon cable with six, 16 fiber ribbons. Notice that in this arrangement, the manufacturer has encapsulated two 8 fiber ribbons into sixteen, making them easy to separate. Also of note is that the color code of the fibers is consistent once the 8 fiber subunits are isolated, making it fast and easy to terminate. Figure 7 78 T.W. Alexander Drive, Research Triangle Park, NC

11 Cables made up of 8 fiber ribbons are available in outside plant, plenum, riser and indoor/outdoor versions with every fiber type included. Figure 8 shows the various layers of encapsulation that make up a 16 fiber ribbon. Figure 8 So what? I am only running 1Gbe today Granted, some data center administrators and operators are planning on running only 1Gbs or perhaps 10 Gbs systems in their new data centers. However, 8 fiber infrastructures will support these networks completely. Additionally, if at any time in the future of the data center, should speeds need to be increased, the passive subsystem already in place need not be altered at all. New end equipment can merely be attached and the system is ready to operate at 40Gbs, 100Gbs, and beyond. What about the future? While there are no guarantees that the network infrastructure will evolve into something completely different than that of today, it is probably safe to assume that future technologies will not be of the disruptive variety in order to allow for graceful growth of the network and to take advantage as much as possible of the installed base. In fact, 400G networks, the next probable step in higher speeds in the network, will easily be supported by the same 8 fiber based solution discussed by using 8 X 25Gbs lanes or 4 X 100Gbs lanes. In many ways, the 8-Fiber Solution is the best technology option for any data center for today and tomorrow. Conclusion While removal of existing 12 fiber subunit infrastructure networks solely for the purpose of installing an 8 fiber 40G/100G solution is an alternative to complete renovation of the data center infrastructure, it is clear that for new installations, which will now or can in the future be called upon to support parallel path transmissions, it is the solution of choice. Not only is the 8-Fiber Solution more cost effective by removing the need for conversion products at either end of the optical link, but it also provides more optical head room by removing two unneeded connections from the system. 78 T.W. Alexander Drive, Research Triangle Park, NC

12 By eliminating unused fibers, the unnecessary connectivity points, and conversion module hardware, the 8-Fiber Solution ultimately yields both the best possible optical performance and cost savings for your data center. Moreover, the 8-Fiber Solution optimizes 40/100G and beyond, while backward compatible with legacy networks (1G & 10G), creating a real-time, scalable, and already future-proofed network. 78 T.W. Alexander Drive, Research Triangle Park, NC

13 78 T.W. Alexander Drive, Research Triangle Park, NC T.W. Alexander Drive, Research Triangle Park, NC

The Optical Fiber Ribbon Solution for the 10G to 40/100G Migration

The Optical Fiber Ribbon Solution for the 10G to 40/100G Migration The Optical Fiber Ribbon Solution for the 10G to 40/100G Migration Bill Charuk, SR Product Manager, Data Center Solutions Introduction With the advent of data centers in communication infrastructure, various

More information

Migration Strategy for 40G and 100G Ethernet over Multimode Fiber

Migration Strategy for 40G and 100G Ethernet over Multimode Fiber Introduction Migration Strategy for 0G and 00G Ethernet over Multimode Fiber There is a need for increased network bandwidth to meet the global IP traffic demand, which is growing at a rate of 0% per year

More information

Infrastructure Trends 40G / 100G Migration. Maurice F. Zetena III Vice President Leviton Technology Data Center Group Leviton Network Solutions

Infrastructure Trends 40G / 100G Migration. Maurice F. Zetena III Vice President Leviton Technology Data Center Group Leviton Network Solutions Data Center: Technology Drivers Infrastructure Trends 40G / 100G Migration Maurice F. Zetena III Vice President Leviton Technology Data Center Group Leviton Network Solutions Technology Drivers Convergence

More information

The Need for Speed Drives High-Density OM3/OM4 Optical Connectivity in the Data Center

The Need for Speed Drives High-Density OM3/OM4 Optical Connectivity in the Data Center The Need for Speed Drives High-Density OM3/OM4 Optical Connectivity in the Data Center Doug Coleman, Manager, Technology & Standards, Corning Cable Systems Optical connectivity with OM3/OM4 laser-optimized

More information

As today s evolving data centers

As today s evolving data centers IT CORNER Next Generation Optical Fiber Connectivity Solutions for the Mission Critical Data Center BY BILL CHARUK As today s evolving data centers confront bandwidth capacity challenges, the migration

More information

The migration path from 10G to 40G and beyond for InstaPATCH 360, InstaPATCH Plus and ReadyPATCH installations

The migration path from 10G to 40G and beyond for InstaPATCH 360, InstaPATCH Plus and ReadyPATCH installations The migration path from 10G to 40G and beyond for InstaPATCH 360, InstaPATCH Plus and ReadyPATCH installations White Paper www.commscope.com Contents Introduction 3 CommScope solution overview 3 InstaPATCH

More information

Ethernet 301: 40/100GbE Fiber Cabling and Migration Practices

Ethernet 301: 40/100GbE Fiber Cabling and Migration Practices Ethernet 301: 40/100GbE Fiber Cabling and Migration Practices Robert Reid (Panduit) Frank Yang (CommScope, Inc) 1 The Presenters Robert Reid Sr. Product Development Manager at Panduit Frank Yang Marketing

More information

Data Center Optimization: Component Choice. Innovative Design. Enabling Infrastructure

Data Center Optimization: Component Choice. Innovative Design. Enabling Infrastructure Data Center Optimization: Component Choice and Innovative Design Combine to Allow the Creation of an Enabling Infrastructure Data Center Spaces Data Center Spaces as Defined by the TIA 942 Standard Source:

More information

HUBER+SUHNER AG Phil Ward

HUBER+SUHNER AG Phil Ward The challenges of building and maintaining Fiber Optic connectivity in the modern Data Center HUBER+SUHNER AG Phil Ward What is our common Global Objective? To connect different types of equipment together

More information

Managing High-Density Fiber in the Data Center: Three Real-World Case Studies

Managing High-Density Fiber in the Data Center: Three Real-World Case Studies Managing High-Density Fiber in the Data Center: Three Real-World Case Studies CHALLENGE In today s data center, fiber optic links have become more vital than ever for transmitting data to and from a large

More information

Overcoming OM3 Performance Challenges

Overcoming OM3 Performance Challenges White Paper Overcoming OM3 Performance Challenges First Third-Party Test of Pre-terminated OM3 MTP System Demonstrates Flexibility in 10G Network Designs Gary Bernstein, RCDD Director of Product Management

More information

Optimizing Infrastructure Support For Storage Area Networks

Optimizing Infrastructure Support For Storage Area Networks Optimizing Infrastructure Support For Storage Area Networks December 2008 Optimizing infrastructure support for Storage Area Networks Mission critical IT systems increasingly rely on the ability to handle

More information

Data Center Design for 40/100G

Data Center Design for 40/100G Data Center Design for 40/100G With the continued requirement for expansion and scalability in the data center, infrastructures must provide reliability, manageability and flexibility. Deployment of an

More information

Migration to 40/100G in the Data Center with OM3 and OM4 Optical Connectivity

Migration to 40/100G in the Data Center with OM3 and OM4 Optical Connectivity Migration to 40/100G in the Data Center with OM3 and OM4 Optical Connectivity Needs in the Data Center With the continued requirement for expansion and growth in the data center, infrastructures must provide

More information

Specifying Optical Fiber for Data Center Applications Tony Irujo Sales Engineer

Specifying Optical Fiber for Data Center Applications Tony Irujo Sales Engineer Specifying Optical Fiber for Data Center Applications Tony Irujo Sales Engineer tirujo@ofsoptics.com Outline Data Center Market Drivers Data Center Trends Optical Fiber and Related Standards Optical Fiber

More information

Upgrading Path to High Speed Fiber Optic Networks

Upgrading Path to High Speed Fiber Optic Networks SYSTIMAX Solutions Upgrading Path to High Speed Fiber Optic Networks White Paper April, 2008 www.commscope.com Contents Connectivity Method A 4 Upgrading Method A to Parallel Optics 4 Connectivity Method

More information

Infrastructure for the next three generations

Infrastructure for the next three generations Infrastructure for the next three generations Demand for bandwidth and storage is expanding at a breathtaking rate within the data center, which means that the environment is rapidly evolving, making the

More information

Understanding Fiber Polarity: Implications at 10G, 40G, & 100G

Understanding Fiber Polarity: Implications at 10G, 40G, & 100G Understanding Fiber Polarity: Implications at 10G, 40G, & 100G FIBER POLARITY: 10G and 40/100G OPTIONS Why is this significant in the data center? Data centers will be one of the first places where we

More information

Data Centre Cabling. 20 August 2015 Stefan Naude RCDD The SIEMON Company

Data Centre Cabling. 20 August 2015 Stefan Naude RCDD The SIEMON Company Data Centre Cabling 20 August 2015 Stefan Naude RCDD The SIEMON Company Agenda 1. Data Centre Standards 2. The Need for Speed 3. Copper in the Data Centre 4. Fibre in the Data Centre 5. Top of Rack vs

More information

Specifying Optical Fiber for Data Center Applications Tony Irujo Sales Engineer

Specifying Optical Fiber for Data Center Applications Tony Irujo Sales Engineer Specifying Optical Fiber for Data Center Applications Tony Irujo Sales Engineer tirujo@ofsoptics.com Outline Data Center Market Drivers Data Center Trends Optical Fiber and Related Standards 40G & 100G

More information

Maintaining Proper Polarity for Modular Pre-terminated Fiber Systems. Rudolph A. Montgelas Fiber Optic Senior Product Manager Ortronics/Legrand

Maintaining Proper Polarity for Modular Pre-terminated Fiber Systems. Rudolph A. Montgelas Fiber Optic Senior Product Manager Ortronics/Legrand Maintaining Proper Polarity for Modular Pre-terminated Fiber Systems Rudolph A Montgelas Fiber Optic Senior Product Manager Ortronics/Legrand November, 006 Introduction: Optical communication systems provide

More information

MIGRATING TO A 40 GBPS DATA CENTER

MIGRATING TO A 40 GBPS DATA CENTER White Paper MIGRATING TO A 40 GBPS DATA CENTER Juniper QSFP+ LX4 technology removes cabling cost barriers for migrating from 10 Gbps to in data center networks Copyright 2014, Juniper Networks, Inc. 1

More information

Implementing Fast Ethernet

Implementing Fast Ethernet Implementing Fast Ethernet R The Next Generation of Ethernet Fast Ethernet (also known as IEEE 802.3u or 100BASE-T) is quickly becoming the successor to Ethernet as the network topology of choice. Fast

More information

Simplifying the Migration from Copper to Fiber. White Paper

Simplifying the Migration from Copper to Fiber. White Paper Simplifying the Migration from Copper to Fiber White Paper Abstract - With transmission speeds for HD video and 4K pushing copper to its limits, optical fiber solutions have become the obvious alternative

More information

HIGHSPEED ETHERNET THE NEED FOR SPEED. Jim Duran, Product Manager - Americas WHITE PAPER. Molex Premise Networks

HIGHSPEED ETHERNET THE NEED FOR SPEED. Jim Duran, Product Manager - Americas WHITE PAPER. Molex Premise Networks HIGHSPEED ETHERNET THE NEED FOR SPEED Jim Duran, Product Manager - Americas WHITE PAPER Molex Premise Networks EXECUTIVE SUMMARY Over the years structured cabling systems have evolved significantly. This

More information

Fiber in the Data Center

Fiber in the Data Center Fiber in the Data Center A NetClear White Paper Rudy Montgelas Senior Fiber Product Manager Ortronics/Legrand Lisa Huff Data Center Applications Engineer Berk-Tek, A Nexans Company March 2008 A New Generation

More information

Security & Surveillance Cabling Systems

Security & Surveillance Cabling Systems Security & Surveillance Cabling Systems Security and Surveillance Cabling Systems The video security industry is growing and ever-changing, offering a wealth of opportunity for today s security professionals.

More information

BICSInews. The CAT s out of the Bag PLUS. issue. + How Safe is the Cloud? + Modernizing Health Care + Shedding Light on a. The Story of the Category

BICSInews. The CAT s out of the Bag PLUS. issue. + How Safe is the Cloud? + Modernizing Health Care + Shedding Light on a. The Story of the Category BICSInews m a g a z i n e PLUS + How Safe is the Cloud? + Modernizing Health Care + Shedding Light on a New Market january/february 2013 l volume 34, number 1 The CAT s out of the Bag The Story of the

More information

Obsolete Fiber Technology? Not in my Data Center!

Obsolete Fiber Technology? Not in my Data Center! Obsolete Fiber Technology? Not in my Data Center! White Paper October 2011 Author: James Young Technical Director, Asia Pacific www.commscope.com Do you remember when people used to say fiber optics are

More information

Optical Fiber. Smart cabling: constructing a cost-effective, reliable and upgradeable cable infrastructure for your enterprise network

Optical Fiber. Smart cabling: constructing a cost-effective, reliable and upgradeable cable infrastructure for your enterprise network Optical Fiber Smart cabling: constructing a cost-effective, reliable and upgradeable cable infrastructure for your enterprise network Carl Roberts robertsc@corning.com Cabling considerations for DCs and

More information

Plug & Play Gigabit Ethernet Media Conversion Module. Application Note

Plug & Play Gigabit Ethernet Media Conversion Module. Application Note Plug & Play Gigabit Ethernet Media Conversion Module Application Note The Plug & Play Universal Systems Media Converter Module offers the best of both worlds easy fiber optic scalability and future proofing

More information

Integrate 10 Gb, 40 Gb and 100 Gb Equipment More Efficiently While Future-Proofing Your Fiber and Copper Network Infrastructure

Integrate 10 Gb, 40 Gb and 100 Gb Equipment More Efficiently While Future-Proofing Your Fiber and Copper Network Infrastructure W H I T E P A P E R Integrate 10 Gb, 40 Gb and 100 Gb Equipment More Efficiently While Future-Proofing Your Fiber and Copper Network Infrastructure Executive Summary Growing demand for faster access to

More information

The Need for Low-Loss Multifiber Connectivity

The Need for Low-Loss Multifiber Connectivity WP_LowLoss_D_B 10/13/14 2:08 PM Page 2 The Need for Low-Loss Multifiber Connectivity In Today s Data Center Optical insertion loss budgets are now one of the top concerns among data center managers, especially

More information

Things You Must Know About Gigabit Ethernet 1. Understanding Gigabit Ethernet

Things You Must Know About Gigabit Ethernet 1. Understanding Gigabit Ethernet Things You Must Know About Gigabit Ethernet 1. Understanding Gigabit Ethernet Today s network managers know that modern demands on a network by its users can shrink bandwidth dramatically. Faster computers,

More information

Fiber Systems. Best Practices for Ensuring Polarity of Array-Based Fiber Optic Channels

Fiber Systems. Best Practices for Ensuring Polarity of Array-Based Fiber Optic Channels Fiber Systems Best Practices for Ensuring Polarity of Array-Based Fiber Optic Channels 1 Introduction Data centers are the central location for data interchange and are found in enterprises, government

More information

TCP/IP Network Communication in Physical Access Control

TCP/IP Network Communication in Physical Access Control TCP/IP Network Communication in Physical Access Control The way it's done: The security industry has adopted many standards over time which have gone on to prove as solid foundations for product development

More information

Design Guide. SYSTIMAX InstaPATCH 360 Traffic Access Point (TAP) Solution. www.commscope.com

Design Guide. SYSTIMAX InstaPATCH 360 Traffic Access Point (TAP) Solution. www.commscope.com Design Guide SYSTIMAX InstaPATCH 360 Traffic Access Point (TAP) Solution www.commscope.com Contents Introduction 3 How Does a TAP Work? 3 The TAP Ecosystem 4 InstaPATCH 360 TAP Module Family 4 InstaPATCH

More information

40/100 Gigabit Ethernet: The Foundation of Virtualized Data Center and Campus Networks

40/100 Gigabit Ethernet: The Foundation of Virtualized Data Center and Campus Networks 40/100 Gigabit Ethernet: The Foundation of Virtualized Data Center and Campus Networks Yinglin (Frank) Yang, CommScope, Inc Gautam Chanda, Cisco Systems White Paper www.commscope.com Contents Contents

More information

Zone Distribution in the Data Center

Zone Distribution in the Data Center Zone Distribution in the Data Center By Jennifer Cline, RCDD As data centers face the continued need to expand and grow, the fundamental concerns and needs remain constant. Key concerns of the data cabling

More information

What to do about Fiber Skew?

What to do about Fiber Skew? What to do about Fiber Skew? White Paper July 2008 www.commscope.com A number of years ago there was a good deal of discussion about the problem of fiber skew in high speed optical links, but the issue

More information

10GBASE-T SFP+ Transceiver Module: Get the most out of your Cat 6a Cabling

10GBASE-T SFP+ Transceiver Module: Get the most out of your Cat 6a Cabling Technical White Paper: 10GBASE-T SFP+ Transceiver Module February 24, 2016 10GBASE-T SFP+ Transceiver Module: Get the most out of your Cat 6a Cabling Enabling More Cat 6a Connectivity for 10GbE Networking

More information

Network Monitoring - Fibre TAP Modules

Network Monitoring - Fibre TAP Modules Network Monitoring - Fibre TAP Modules It all started with. Bend insensitive MM fibre Smaller diameter cables Cable with tighter bend radius Less space in the DC, More organised cable management Greater

More information

High Speed Ethernet. Dr. Sanjay P. Ahuja, Ph.D. Professor School of Computing, UNF

High Speed Ethernet. Dr. Sanjay P. Ahuja, Ph.D. Professor School of Computing, UNF High Speed Ethernet Dr. Sanjay P. Ahuja, Ph.D. Professor School of Computing, UNF Hubs and Switches Hubs and Switches Shared Medium Hub The total capacity in the shared medium hub configuration (figure

More information

Top of Rack: An Analysis of a Cabling Architecture in the Data Center

Top of Rack: An Analysis of a Cabling Architecture in the Data Center SYSTIMAX Solutions Top of Rack: An Analysis of a Cabling Architecture in the Data Center White paper Matthew Baldassano, Data Center Business Unit CommScope, Inc, June 2010 www.commscope.com Contents I.

More information

Physical Infrastructure trends and certification requirements for Datacenters. Psiber s Global Village

Physical Infrastructure trends and certification requirements for Datacenters. Psiber s Global Village Brno, Marec 2014 Physical Infrastructure trends and certification requirements for Datacenters Ing. Peter Potrok PROFiber Networking s.r.o. Psiber s Global Village London Munich San Diego Boston Paris

More information

Cabling & Test Considerations for 10 Gigabit Ethernet LAN

Cabling & Test Considerations for 10 Gigabit Ethernet LAN Introduction Current communication data rates in local networks range from 10/100 megabits per second (Mbps) in Ethernet to 1 gigabit per second (Gbps) in fiber distributed data interface (FDDI) and Gigabit

More information

With the advent of Gigabit Ethernet

With the advent of Gigabit Ethernet INTERNATIONAL JOURNAL OF NETWORK MANAGEMENT Int. J. Network Mgmt 2001; 11:139 146 (DOI: 10.1002/nem.396) The importance of modal bandwidth in Gigabit Ethernet systems By David N. Koon Ł This article deals

More information

MPO. Fast Fibre Solution for Data Centres

MPO. Fast Fibre Solution for Data Centres MPO Fast Fibre Solution for Data Centres Benefits The Plug & Play MPO solution of Nexans Cabling Solutions provides a comprehensive line of pre-terminated and pre-tested assemblies to meet the current

More information

Navigating the Pros and Cons of Structured Cabling vs. Top of Rack in the Data Center

Navigating the Pros and Cons of Structured Cabling vs. Top of Rack in the Data Center May 2013 Navigating the Pros and Cons of Structured Cabling vs. Top of Rack in the Data Center Executive Summary There is no single end-all cabling configuration for every data center, and CIOs, data center

More information

Will Your Fiber Optic Cable Plant Support Gigabit Ethernet?

Will Your Fiber Optic Cable Plant Support Gigabit Ethernet? Will Your Fiber Optic Cable Plant Support Gigabit Ethernet? GBE, as the name says, is Ethernet scaled up to gigabit speeds, providing a migration path from Ethernet at 10 MB/s to Fast Ethernet at 100 MB/s

More information

10G CWDM Conversion Technology

10G CWDM Conversion Technology 10G CWDM Conversion Technology Simplifying Today s Challenges By Transition Networks Curt Carlson Product Manager curtc@transition.com com Agenda WDM Technology Overview What are the features/benefits

More information

Physical Infrastructure trends and evolving certification requirements for Datacenters Ravi Doddavaram

Physical Infrastructure trends and evolving certification requirements for Datacenters Ravi Doddavaram Physical Infrastructure trends and evolving certification requirements for Datacenters Ravi Doddavaram www.psiberdata.com Agenda Market Market Trend and Trend business and and business case for case higher

More information

Best Practices for Ensuring Fiber Optic System Performance. David Zambrano

Best Practices for Ensuring Fiber Optic System Performance. David Zambrano Best Practices for Ensuring Fiber Optic System Performance David Zambrano Inspect Before You Connect Optical Connectors in our Networks Contamination and Signal Performance Sources of Contamination Process

More information

10/40/100 MIGRATION IN DATA CENTERS The Three P s : Path, Polarity and Pins

10/40/100 MIGRATION IN DATA CENTERS The Three P s : Path, Polarity and Pins 0/40/00 MIGRTION IN DT CENTERS ENTERPRISE NETWORK SOLUTIONS /// WHITE PPER 0/40/00 Migration in Data Centers FORWRD-LOOKING DT CENTER DESIGNERS ND MNGERS RELIZE THT, NOW THT THE STNDRDS RE LRGELY DEFINED,

More information

Secure/Keyed LC System Solutions Overview

Secure/Keyed LC System Solutions Overview Secure/Keyed LC System Solutions Overview Designing performance and efficiency into your secure network Introduction In recent years, physically discrete fiber connection systems have emerged to respond

More information

Using High Availability Technologies Lesson 12

Using High Availability Technologies Lesson 12 Using High Availability Technologies Lesson 12 Skills Matrix Technology Skill Objective Domain Objective # Using Virtualization Configure Windows Server Hyper-V and virtual machines 1.3 What Is High Availability?

More information

Oracle Big Data Appliance: Datacenter Network Integration

Oracle Big Data Appliance: Datacenter Network Integration An Oracle White Paper May 2012 Oracle Big Data Appliance: Datacenter Network Integration Disclaimer The following is intended to outline our general product direction. It is intended for information purposes

More information

Arista and Leviton Technology in the Data Center

Arista and Leviton Technology in the Data Center Visit: www.leviton.com/aristanetworks Arista and Leviton Technology in the Data Center Customer Support: 1-408-547-5502 1-866-476-0000 Product Inquiries: 1-408-547-5501 1-866-497-0000 General Inquiries:

More information

Arista 40G Cabling and Transceivers: Q&A

Arista 40G Cabling and Transceivers: Q&A Arista 40G Cabling and Transceivers: Q&A 40G Cabling Technical Q&A Document 40Gigabit Cables and Transceivers Q. What 40G cables and transceivers are available from Arista? A. Arista supports a full range

More information

Table of Contents. Fiber Trunking 2. Copper Trunking 5. H-Series Enclosures 6. H-Series Mods/Adapter Panels 7. RSD Enclosures 8

Table of Contents. Fiber Trunking 2. Copper Trunking 5. H-Series Enclosures 6. H-Series Mods/Adapter Panels 7. RSD Enclosures 8 Data Center Guide 1 Our Philosophy As a leader in the enterprise cable industry since our inception over three decades ago, we can help you implement the solution that will work best for your cabling infrastructure,

More information

AMP NETCONNECT Data Center Cabling Solutions

AMP NETCONNECT Data Center Cabling Solutions AMP NETCONNECT Data Center Cabling Solutions Modern business and administrative environments require today more and more sophisticated IT services, what leads to an increasing demand for data provision

More information

10 Gigabit Ethernet: Scaling across LAN, MAN, WAN

10 Gigabit Ethernet: Scaling across LAN, MAN, WAN Arasan Chip Systems Inc. White Paper 10 Gigabit Ethernet: Scaling across LAN, MAN, WAN By Dennis McCarty March 2011 Overview Ethernet is one of the few protocols that has increased its bandwidth, while

More information

CWDM: lower cost for more capacity in the short-haul

CWDM: lower cost for more capacity in the short-haul MARCUS NEBELING, Fiber Network Engineering The opportunity to add two to eight wavelengths per fiber allows network designers to increase capacity without installing costly DWDM systems. Fiber Network

More information

WHITE PAPER. 50 versus 62.5 micron multimode fiber

WHITE PAPER. 50 versus 62.5 micron multimode fiber WHITE PAPER 50 versus 62.5 micron multimode fiber www.ixiacom.com 915-6919-01 Rev. A, July 2014 2 Table of Contents What are 50μm fiber and 62.5μm fiber?... 4 Why two standards?... 4 Which technology should

More information

100BASE-SX Fast Ethernet:

100BASE-SX Fast Ethernet: 100BASE-SX Fast Ethernet: A Cost Effective Migration Path for Fiber in the Horizontal Prepared by the Fiber Optics LAN Section of the Telecommunications Industry Association February 2000 2000 TIA Fiber

More information

AMP NETCONNECT CABLING SYSTEMS FOR DATA CENTERS & STORAGE AREA NETWORKS (SANS) High-density, High Speed Optical Fiber and Copper Solutions

AMP NETCONNECT CABLING SYSTEMS FOR DATA CENTERS & STORAGE AREA NETWORKS (SANS) High-density, High Speed Optical Fiber and Copper Solutions AMP NETCONNECT CABLING SYSTEMS FOR DATA CENTERS & STORAGE AREA NETWORKS (SANS) High-density, High Speed Optical Fiber and Copper Solutions TABLE OF CONTENTS TABLE OF CONTENTS... 2 INTRODUCTION... 3 CABLING

More information

ntap Product Family Provides monitoring and security devices with complete visibility into full-duplex networks

ntap Product Family Provides monitoring and security devices with complete visibility into full-duplex networks ntap Product Family Provides monitoring and security devices with complete visibility into full-duplex networks Network Instruments ntaps let you monitor and analyze full-duplex links. ntaps are critical

More information

Data Center Market Trends

Data Center Market Trends Data Center Market Trends Business and Consumer Applications are Driving Data Demand Data centers support enterprise applications Providing business critical information to the connected workforce with

More information

Innovation. Volition Network Solutions. Leading the way in Network Migration through Innovative Connectivity Solutions. 3M Telecommunications

Innovation. Volition Network Solutions. Leading the way in Network Migration through Innovative Connectivity Solutions. 3M Telecommunications 3M Telecommunications Solutions for Networks Volition Network Solutions Leading the way in Network Migration through Innovative Connectivity Solutions Innovation The Broadband Migration Path 3M TM Volition

More information

Bandwidth Growth and the Next Speed of Ethernet

Bandwidth Growth and the Next Speed of Ethernet Bandwidth Growth and the Next Speed of Ethernet John D Ambrosia Chairman, Ethernet Alliance (Dell) jdambrosia@ieee.org Scott Kipp President of the Ethernet Alliance (Brocade) skipp@brocade.com 1 Regarding

More information

40 Gigabit Ethernet and 100 Gigabit Ethernet Technology Overview

40 Gigabit Ethernet and 100 Gigabit Ethernet Technology Overview 40 Gigabit Ethernet and 100 Gigabit Ethernet Technology Overview June 2010 Authors: John D Ambrosia, Force10 Networks David Law, 3COM Mark Nowell, Cisco Systems 1. This work represents the opinions of

More information

Ethernet/IEEE 802.3 evolution

Ethernet/IEEE 802.3 evolution Ethernet/IEEE 802.3 evolution Pietro Nicoletti www.studioreti.it 8023-Evolution-Engl - 1 P. Nicoletti: see note pag. 2 Copyright note These slides are protected by copyright and international treaties.

More information

Carrier Ethernet: New Game Plan for Media Converters

Carrier Ethernet: New Game Plan for Media Converters Introduction IEEE Std. 802.3ah, also referred to as Ethernet in the First Mile (EFM) standard, has a well established name within the industry today. It lays out ground rules for implementing Ethernet

More information

Truffle Broadband Bonding Network Appliance

Truffle Broadband Bonding Network Appliance Truffle Broadband Bonding Network Appliance Reliable high throughput data connections with low-cost & diverse transport technologies PART I Truffle in standalone installation for a single office. Executive

More information

OSMIUM HIGH DENSITY FIBER OPTIC CHASSIS

OSMIUM HIGH DENSITY FIBER OPTIC CHASSIS OSMIUM HIGH DENSITY FIBER OPTIC CHASSIS OSMIUM HIGH DENSITY FIBER OPTIC CHASSIS The Osmium high density fiber optic chassis is based upon a modular and scalable system composed of 19 unloaded chassis,

More information

The Importance of minembc Laser Bandwidth Measured Multimode Fiber for High Performance Premises Networks White Paper

The Importance of minembc Laser Bandwidth Measured Multimode Fiber for High Performance Premises Networks White Paper The Importance of minembc Laser Bandwidth Measured Multimode Fiber for High Performance Premises Networks White Paper Optical Fiber WP1150 Issued: October 2007 Supersedes: October 2006 ISO 9001 Registered

More information

CommScope Fiber Solutions

CommScope Fiber Solutions CommScope Fiber Solutions 2 Network Reliability Key for Business Success Gigabit Ethernet is already making its way to employees desktops. Smart IT departments recognize the critical need to be prepared

More information

Loss & Continuity Testing with MPO/ MTP Connectors

Loss & Continuity Testing with MPO/ MTP Connectors Loss & Continuity Testing with MPO/ MTP Connectors Deployments of fiber optic systems in data centres are now using multimode ribbon fiber and typically MPO/MTP connectors, which have some very particular

More information

Sustaining the Cloud with a Faster, Greener and Uptime-Optimized Data Center

Sustaining the Cloud with a Faster, Greener and Uptime-Optimized Data Center Sustaining the Cloud with a Faster, Greener and Uptime-Optimized Data Center WP6046 Issued: June 2012 Introduction Our world is in a rapid state of change in terms of the way we communicate and are connected

More information

Issues Affecting the Design and Choice of Cabling Infrastructures within Data Centres

Issues Affecting the Design and Choice of Cabling Infrastructures within Data Centres Issues Affecting the Design and Choice of Cabling Infrastructures within Data Centres White Paper Nexans Cabling Solutions September 2006 Executive Summary Planning for the unknown is always a difficult

More information

TIA Releases Guidelines for Maintaining Polarity Using Array Connectors

TIA Releases Guidelines for Maintaining Polarity Using Array Connectors Corning Cable Systems TIA Releases Guidelines for Maintaining Polarity Using Array Connectors What is new? ANSI/TIA-568-B.1-7-2006 Commercial Building Telecommunications Cabling Standard, Part 1 General

More information

IEEE 802.3ba 40 and100 Gigabit Ethernet Architecture. Ilango Ganga, Intel IEEE P802.3ba task force Chief Editor

IEEE 802.3ba 40 and100 Gigabit Ethernet Architecture. Ilango Ganga, Intel IEEE P802.3ba task force Chief Editor IEEE 802.3ba 40 and100 Gigabit Ethernet Architecture Ilango Ganga, Intel IEEE P802.3ba task force Chief Editor 1 Outline IEEE 802.3ba overview 40 and 100 Gb/s Ethernet layer diagram 40 and 100 Gb/s sublayers

More information

Recession-Proof Consulting Services with CWDM Network Design

Recession-Proof Consulting Services with CWDM Network Design Recession-Proof Consulting Services with CWDM Network Design Presented By Ty Estes Marketing Communications Director Omnitron Systems Recession-Proof Consulting Services with CWDM Network Design Introduction

More information

Network Design. Yiannos Mylonas

Network Design. Yiannos Mylonas Network Design Yiannos Mylonas Physical Topologies There are two parts to the topology definition: the physical topology, which is the actual layout of the wire (media), and the logical topology, which

More information

Your single source for network transmission solutions.

Your single source for network transmission solutions. Transmission Network Solutions Safety Security Certainty Your single source for network transmission solutions. Robust performance and complete flexibility to meet all your current and future transmission

More information

How To Properly Maintain A Fiber Optic Infrastructure

How To Properly Maintain A Fiber Optic Infrastructure How To Properly Maintain A Fiber Optic Infrastructure Best Practices to Minimize Damage and Failures in Fiber Optic Infrastructures White Paper Rodney Casteel, RCDD, NTS, OSP, Technical Manager, CommScope

More information

Oracle Exalogic Elastic Cloud: Datacenter Network Integration

Oracle Exalogic Elastic Cloud: Datacenter Network Integration An Oracle White Paper February 2014 Oracle Exalogic Elastic Cloud: Datacenter Network Integration Disclaimer The following is intended to outline our general product direction. It is intended for information

More information

US Data Services 2014-2019

US Data Services 2014-2019 US Data Services 2014-2019 Executive Summary CMR Market Research April 2015 Reproduction without permission 1 The contents of this report represent CMR s analysis of the information available to the public

More information

Trends In Data Rate And Link Length In Evolving Optical Standards

Trends In Data Rate And Link Length In Evolving Optical Standards Trends In Data Rate And Link Length In Evolving Optical Standards David Cunningham 22 nd September 2013 Outline Building and Data Centre link lengths Trends for standards-based electrical interfaces Data

More information

The Three Principles of Data Center Infrastructure Design WHITE PAPER

The Three Principles of Data Center Infrastructure Design WHITE PAPER The Three Principles of Data Center Infrastructure Design WHITE PAPER The Three Principles of Data Center Infrastructure Design Understand These Three Principles and You ll: Lower your total cost of ownership

More information

Optical Trends in the Data Center. Doug Coleman Manager, Technology & Standards Distinguished Associate Corning Cable Systems

Optical Trends in the Data Center. Doug Coleman Manager, Technology & Standards Distinguished Associate Corning Cable Systems Optical Trends in the Data Center Doug Coleman Manager, Technology & Standards Distinguished Associate Corning Cable Systems Data Center Environment Data Center Environment Higher speeds Higher density

More information

Attaching the PA-A1-ATM Interface Cables

Attaching the PA-A1-ATM Interface Cables CHAPTER 4 Attaching the PA-A1-ATM Interface Cables To continue your PA-A1-ATM port adapter installation, you must attach the port adapter cables. The instructions that follow apply to all supported platforms.

More information

Fast Ethernet and Gigabit Ethernet. Networks: Fast Ethernet 1

Fast Ethernet and Gigabit Ethernet. Networks: Fast Ethernet 1 Fast Ethernet and Gigabit Ethernet Networks: Fast Ethernet 1 Fast Ethernet (100BASE-T) How to achieve 100 Mbps capacity? MII LLC MAC Convergence Sublayer Media Independent Interface Media Dependent Sublayer

More information

The Conversion Technology Experts. Fiber Optics Basics

The Conversion Technology Experts. Fiber Optics Basics The Conversion Technology Experts Fiber Optics Basics Introduction Fiber optic technology is simply the use of light to transmit data. The general use of fiber optics did not begin until the 1970s. Robert

More information

10GBASE T for Broad 10_Gigabit Adoption in the Data Center

10GBASE T for Broad 10_Gigabit Adoption in the Data Center 10GBASE T for Broad 10_Gigabit Adoption in the Data Center Contributors Carl G. Hansen, Intel Carrie Higbie, Siemon Yinglin (Frank) Yang, Commscope, Inc 1 Table of Contents 10Gigabit Ethernet: Drivers

More information

40 and 100 Gigabit Ethernet Overview

40 and 100 Gigabit Ethernet Overview 40 and 100 Gigabit Ethernet Overview Abstract: This paper takes a look at the main forces that are driving Ethernet bandwidth upwards. It looks at the standards and architectural practices adopted by the

More information

An Overview of Fiber Optic Technology

An Overview of Fiber Optic Technology Fiber Optic Technology Overview - 1/6 An Overview of Fiber Optic Technology The use of fiber optics in telecommunications and wide area networking has been common for many years, but more recently fiber

More information

White Paper. Optimizing the SAN Fiber Optic Physical Layer in Your Data Center

White Paper. Optimizing the SAN Fiber Optic Physical Layer in Your Data Center White Paper October 2012 Optimizing the SAN Fiber Optic Physical Layer in Your Data Center Deploying a structured cabling system for the SAN provides measurable results and long term value, whether you

More information

Instruction Manual RT-94845SL RR-94845SL Forty-Eight Channel Video Multiplexer With Bi-directional Ethernet Data

Instruction Manual RT-94845SL RR-94845SL Forty-Eight Channel Video Multiplexer With Bi-directional Ethernet Data Instruction Manual RT-94845SL RR-94845SL Forty-Eight Channel Video Multiplexer With Bi-directional Ethernet Data Copyright 2007, American Fibertek, Inc. 0411JD Table of Contents Functional Description...3

More information

Gigabit Ethernet: Architectural Design and Issues

Gigabit Ethernet: Architectural Design and Issues Gigabit Ethernet: Architectural Design and Issues Professor of Computer and Information Sciences Columbus, OH 43210 http://www.cis.ohio-state.edu/~jain/ 9-1 Overview Distance-Bandwidth Principle 10 Mbps

More information