Tài liệu KRONE REPORT No. 4 pptx

Rapid AdvancementMore users, new applications, faster Internet connections and efficientand reliable data transfer were prime considerations in choosingproducts to build CUNY’s School of

Providing a high-quality,

affordable education to

a large, diverse student

body throughout New

York City’s five boroughs

is a tremendous

chal-lenge Today, one of the

keys to CUNY’s success

is the strategic utilization

of networking technology.

From on-line classes to the

Web library, embracing

new technology is crucial

Providing Access to Academic Excellence

As a public institution of higher learning, the City University of NewYork’s mandate is to offer a powerful academic program at affordablecosts CUNY’s roots date back to 1847, with the founding of the FreeAcademy by Townsend Harris The mission of that institution, as heput it, was to “Open the doors to all—let the children of the rich andpoor take seats together and know of no distinction save that of

CUNY OFFERS STUDENTS

A RICH, DIVERSE ARRAY OF

MORE THAN 900 PROGRAMS.

3

excellence while providing equal access to, and opportunity for,education Yongsoo Ha, Director of Academic Computing and LawSchool Systems, wanted to make sure the latest CUNY data cablinginstallation would support the University’s future needs.

The City University

of New York

CUNY is the largest urban university and the third largest publicuniversity system in the United States With more than 200,000students in nearly 300 degree programs on its 20 campuses (and morethan 150,000 students in adult and continuing education programs),CUNY offers a vast array of educational opportunities to diversepopulations CUNY campuses serve as indispensable cultural, socialand educational resources to the surrounding communities

Alumni—from Gen Colin Powell and comedian Jerry Seinfeld tonovelist Oscar Hijuelos, Nobel Laureate Rosalyn Yalow and 10 otherNobel Laureates—excel in every field of human endeavor.Additionally, more American chief executive officers have graduated

THE CITY UNIVERSITY OF

NEW YORK NOW BOASTS

courses on all levels, from introductory undergraduate classes to smallgraduate seminars in CUNY’s nationally-ranked doctoral programs.

Tools for Education

The computer age and the Internet have radically changed the collegeexperience in the past few years Virtual classrooms (including on-lineregistration, lebrary access and report cards), quizzes over the Internetand networked dormitory rooms are just a few examples of howcolleges and universities have leveraged technology to both enhancethe learning experience and create efficient academic administration

To provide such services, CUNY needed to ensure that theinfrastructure would be able to support such diverse and demandingapplications Yongsoo Ha knew that their infrastructure would need to

be improved “We were beginning to call upon our network to domore and more, yet we had not updated the cabling system in almost

10 years Response time was slow and users had to wait much longerthan they should have—primarily due to an inadequate cabling system.”

“EDUCATING STUDENTS

TODAY INCREASINGLY

INVOLVES COMPUTER

TECHNOLOGY THE CABLING

SYSTEM WILL DETERMINE

WHETHER WE CAN LEVERAGE

OUR NETWORKS TO PROVIDE

A QUALITY EDUCATION.”

YONGSOO HA, CUNY

7

Rapid Advancement

More users, new applications, faster Internet connections and efficientand reliable data transfer were prime considerations in choosingproducts to build CUNY’s School of Law’s new network “Starting with

a good foundation made perfect sense to me We wanted to install asystem that supported both current and future applications…one wecould put in the wall and forget about,” stated Bill Darios, Network Administrator

CUNY’s School of Law looked at several system offerings available onthe market and chose the TrueNet solution from KRONE Opting forKRONE’s C6T solution, which is an Anixter Levels XP 7 compliantsolution, CUNY’s School of Law was impressed by the performancecapabilities of the KRONE products—both in electrical performanceand data carrying capacity According to Yongsoo Ha, “We wanted asystem that was perfect from one end to the other KRONE’s C6T, wefelt, was as good as they came Made by one company, KRONE’sunequalled warranty program tells me that they believe in, and stand

by, their products and systems.”

THE TRUENET™ STRUCTURED

CABLING SYSTEM IS A

REVOLUTIONARY SOLUTION

FROM KRONE THAT

ELIMINATES YOUR NETWORK

RETRANSMISSION PROBLEMS

IN THE PHYSICAL LAYER.

9

The Existing System

The City University of New York School of Law had been operating a

10 Mbps Ethernet network for several years with no complaints Thenthe sudden and exponential demand for Internet access and e-mailbrought the network to its knees—creating an unacceptable responsetime for most users on the network The primary problem was thecabling system, a combination of Category 3 and Category 5 productsthat had been installed over the years The installed system was able

to support slower speeds, but not the 100 Mbps traffic the Universitywas beginning to deploy

Attenuation NEXT Attn Cat 5e NEXT Cat 5e

TRUENET CABLE IS BASED ON

TRUEMATCH™ TECHNOLOGY,

A SERIES OF PATENTED

PRODUCT DESIGNS

AND MANUFACTURING

INNOVATIONS THE RESULT?

A CABLE THAT’S FINE-TUNED

The installed products, when tested as a channel, did not meet theCategory 5 specifications More noise and less signal (than thatspecified by Category 5), caused a significant number ofretransmissions on the University’s network.

A New Direction

When the KRONE C6T TrueNet system was installed, the differencebetween the old and the new was significant Where the previoussystem did not meet minimum standards requirements, the

only Category 5, it also exceeded Category 5e and the proposedCategory 6 specifications

0 50 100 150 200 250 300 350

Frequency (MHz)

Source:

ANIXTER LEVELS LAB ®

Pre-Installation Return Loss

THE TRUENET C6T SOLUTION

A much better signal-to-noise ratio means much better networkperformance for the City University of New York’s School of Law.

0 50 100 150 200 250 300 350

Frequency (MHz)

Source: ANIXTER LEVELS LAB ®

Post-Installation Return Loss

Attenuation NEXT Attn Cat 5e NEXT Cat 5e Attn Limit L7 NEXT Limit L7

Frequency (MHz)

TRUENET C6T PROVIDES

TWICE THE BANDWIDTH

OVER CATEGORY 5E—AND

MORE BANDWIDTH

MEANS MORE

DATA-CARRYING CAPACITY.

15

slowtime Over 70% of the data sent over the University’s networkbecame corrupted and had to be sent again—which caused significantwaiting time for users who sent or received files of considerable size.

After installing the KRONE TrueNet system the error rate wasnegligible Not only will the University be able to implement fastEthernet today; they will also—with a TrueNet XP-certified system—

be able to deploy Gigabit Ethernet in the future without having totouch their cabling system

According to Yongsoo Ha, “It literally used to take minutes to open

“70% OF THE DATA

TRAVELLING OVER OUR OLD

NETWORK HAD TO BE

RETRANSMITTED OUR

NETWORK WAS UP—BARELY.

THE KRONE C6T SYSTEM

IS PROVIDING US WITH

100% ERROR-FREE DATA

TRANSMISSION WE ARE

FINALLY ABLE TO RUN AT

FAST ETHERNET SPEEDS.”

—BILL DANOS, CUNY

17

fraction of the time It is amazing that cabling could make so much difference.”

Source: NATIONAL SCIENCE FOUNDATION

EACH CITY UNIVERSITY

OF NEW YORK NETWORK

USER WILL GAIN OVER

$35,000 IN ANNUAL

PRODUCTIVITY WHERE KRONE

TRUENET C6T IS INSTALLED.

19

Performance Reliability

reliability today’s applications require Network performance isdetermined by the interaction between transceivers (activecomponents such as hubs, switches and NICs) and the cabling system(passive components such as cable, patch cords and connectors).Levels XP solutions are more forgiving of marginally–performingactive components, so a larger portion of the data sent is transported successfully

Typical Errors Per Port Test

Source: ANIXTER LEVELS LAB ®

Cat 5 Cat 5e

XP 6

XP 7

LEVELS XP PROVIDES

YOUR NETWORK WITH THE

ULTIMATE IN PERFORMANCE

AND RELIABILITY LEVELS XP

MINIMIZES FACTORS SUCH AS

HEAT, HUMIDITY, EXTERNAL

NOISE AND INSTALLATION

KRONE is a leading network cable and connectivity supplier, providinghigh-performance network solutions for both wide- and local-areanetworks (WANs/LANs) Since its initial offering of distribution framesand cable connection hardware more than 70 years ago, KRONE hasestablished an extensive product line and a global reach that extends

to more than 140 countries And while the company has experiencedtremendous growth, its focus has remained the same—supplying itscustomers with high-quality, state-of-the-art products and services forboth public and private communications networks

Today, KRONE is a total solutions provider, offering a complete line

of copper- or fiber-based cabling systems and connectivity productsfor both voice and data communication applications With 3,500employees in 26 business units and 11 factories around the world,KRONE is the ideal choice for multinational corporations wishing tostandardize on one worldwide system solution

ALTHOUGH KRONE HAS

EXPERIENCED TREMENDOUS

GROWTH, ITS FOCUS HAS

REMAINED THE SAME—TO

SUPPLY CUSTOMERS WITH

HIGH QUALITY,

STATE-OF-THE-ART PRODUCTS AND SERVICES.

TrueNet is the first cabling system solution to offer a warranty thataddresses what’s really important to the network user: throughput.Other cabling warranties offer “application assurance.” This meansthat the link light will go on, but it does NOT ensure you that yoursystem will run efficiently With TrueNet, you can be assured thatyour new cabling system channel will not cause bit errors, which rob your system of throughput Plus, after the installation of your new TrueNet system (greater than 250 nodes), KRONE techniciansvisit and perform active testing at the installed site to make sure that everything is running as it should This even includes your active equipment!

TrueNet can offer this remarkable guarantee because all products aredesigned and tested using active network technology that evaluatesthe performance of a new cabling system as if there were a livenetwork in place This ensures that not only the TIA/EIA passivecriteria are met, but also the IEEE specifications—which are critical forthroughput performance

OFFERING THE INDUSTRY’S

FIRST THROUGHPUT

WARRANTY, KRONE ASSURES

ZERO BIT ERRORS OVER

THE PASSIVE COMPONENTS

FOR A FULL 5-YEAR

RENEWABLE PERIOD, PLUS

TESTING PARAMETERS INCLUDE:

TrueNet warranties cover all aspects of the cabling system: patchcords, horizontal cable, patch panels and jacks Additionally, KRONEwill report to you in the course of the warranty verification if anyactive devices are not performing within IEEE specifications

Min Voltage/Amplitude Oversized/Undersized Packets

Alignment Fragments Return Loss Network Load/Live Testing Differential Impedance Insertion Loss Deviation