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920-463 Ethernet Switching Design Expert

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920-463 exam Dumps Source : Ethernet Switching Design Expert

Test Code : 920-463
Test Name : Ethernet Switching Design Expert
Vendor Name : Nortel
: 54 Real Questions

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Nortel Ethernet Switching Design Expert

world Ethernet change Market 2011-2015 | killexams.com Real Questions and Pass4sure dumps

ny, Jan. 4, 2013 /PRNewswire/ -- Reportlinker.com pronounces that a brand new market research file is obtainable in its catalogue:

world Ethernet swap Market 2011-2015

http://www.reportlinker.com/p0240540/world-Ethernet-change-Market-2011-2015.html#utm_source=prnewswire&utm_medium=pr&utm_campaign=Wireless_Technology

TechNavio's analysts forecast the world Ethernet change market to grow at a CAGR of 8.21 % over the period 2012-2016. probably the most key elements contributing to this market growth is the expanding demand for 10Gb Ethernet switches. The international Ethernet switch market has also been witnessing the expanding adoption in storage area community. youngsters, the raise in aspect of screw ups in Ethernet networks may pose a challenge to the increase of this market.

TechNavio's record, the world Ethernet switch Market 2012-2016, has been prepared in accordance with an in-depth market analysis with inputs from trade consultants. The document covers the Americas, and the EMEA and APAC regions; it also covers the international Ethernet switch market landscape and its boom prospects in the coming years. The report also includes a dialogue of the key carriers operating during this market.

the important thing providers dominating this market space are Alcatel-Lucent, Avaya Inc., Cisco systems Inc., D-link Corp., HP Co., Huawei technologies Co. Ltd., and Juniper Networks Inc.

The other companies outlined within the report are Dell Inc., Brocade Communications systems Inc., Adtran Inc., Hitachi Ltd., ZTE Corp., and Nortel Networks Corp.

Key questions answered during this report:

what will the market dimension be in 2015 and what is going to the increase cost be?

What are the key market developments?

what's riding this market?

What are the challenges to market growth?

who're the important thing providers in this market house?

What are the market alternatives and threats confronted by way of the important thing vendors?

What are the strengths and weaknesses of the key vendors?

which you could request one free hour of analyst time in case you buy this record. particulars provided in the report.

TechNavio's research portfolio in the Networking series contains studies on the SAN Market, WLAN Market, NAS Market, Ethernet Market, Routers Market, community equipment Market, FTTH Market, Optical Fiber Market, Storage software Market, information middle community gadget Market, IPAM Market.

01. executive abstract

02. Introduction

03. Market coverage

Market Overview

Key choices

04. Market landscape

04.1 Market size and Forecast

04.2 5 Forces evaluation

05. Geographical Segmentation

06. Key leading international locations

the us

the uk

Japan

07. dealer panorama

08. purchasing standards

09. Market growth Drivers

10. Drivers and their impact

eleven. Market Challenges

12. have an impact on of Drivers and Challenges

13. Market traits

14. Key vendor analysis

14.1 Cisco programs Inc.

company Overview

SWOT evaluation

14.2 HP Co.

enterprise Overview

SWOT evaluation

14.three Alcatel-Lucent

company Overview

SWOT evaluation

14.four Juniper Networks Inc.

enterprise Overview

SWOT evaluation

14.5 Huawei technologies Co. Ltd.

business Overview

SWOT evaluation

14.6 D-link Corp.

company Overview

SWOT analysis

15. different studies in this series

listing of reveals:

demonstrate 1: international Ethernet switch Market 2011-2015 (US$ billion)

reveal 2: international Ethernet change Market via Geographical Segmentation 2011

exhibit three: global Ethernet swap Market via dealer Segmentation 2011

To order this report:

Wireless_Technology industry: global Ethernet change Market 2011-2015

Contact Nicolas: nicolasbombourg@reportlinker.com US: (805)-652-2626 Intl: +1 805-652-2626

source Reportlinker


Nortel units up design core in India | killexams.com Real Questions and Pass4sure dumps

Nortel Networks is setting up a product design, development and checking out core in Bangalore, India, in a flow to take potential of lessen staffing fees within the nation.

The Nortel know-how Excellence center will employ greater than 100 engineers by means of the end of the yr, Nortel said on Tuesday. The initial body of workers comes from the India building crew of Tasman Networks Inc., a router maker that Nortel obtained in February.

The middle will work on superior routers, Ethernet switching, security, and VOIP (Voice over information superhighway Protocol ) technologies, Ravi Chauhan, Nortel’s managing director for India, spoke of on Wednesday.

Nortel outsources some of its product building work to Indian groups, together with Infosys applied sciences, Wipro, and Tata Consultancy services. The three companies have about three,000 body of workers engaged on Nortel projects.

establishing the new design middle will not have an effect on Nortel’s outsourcing contracts, in response to Chauhan. The outsourcers work on building of Nortel’s enterprise, wireless, core switching, and optical networking product lines, he observed. Nortel does some product construction in-house as well as via its contractors, he introduced.

The Brampton, Ontario, business also has a minority funding in Sasken verbal exchange applied sciences, a software capabilities company in Bangalore, which offers capabilities to Nortel’s shoppers.


7 nanometer and Chiplets to drive Ethernet change Market in 2019 | killexams.com Real Questions and Pass4sure dumps

Will permit 2d era four hundred Gbps in a position to Longer Distances

In late 2018, Barefoot networks publicly announced the primary ever 7nm plus chiplet switch ASIC product – the Tofino 2 chip. here's the beginning of a market transformation as Ethernet change design will begin to embrace disaggregation (such as the chiplet category design) a great deal just like the leisure of statistics middle market. they are able to see potent product demonstrations at OFC, OCP, and a lot of different suggests during 2019 as the ecosystem gears up for this crucial architecture shift. With 7nm available from fundamental foundries, the market will start to circulate during this heterogenous course as a way to bigger potential switch silicon. not handiest will this pave the way for 25.6 Tbps and fifty one.2 Tbps fabrics, they can see multiplied product agility, lower can charge, enhanced power, and more items offerings from chiplet design.

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Ethernet Switching Design Expert

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7 nanometer and Chiplets to Drive Ethernet Switch Market in 2019 | killexams.com real questions and Pass4sure dumps

Will Enable Second Generation 400 Gbps Capable of Longer Distances

In late 2018, Barefoot networks publicly announced the first ever 7nm plus chiplet switch ASIC product – the Tofino 2 chip. This is the start of a market transformation as Ethernet Switch design will begin to embrace disaggregation (such as the chiplet type design) much like the rest of data center market. They will see strong product demonstrations at OFC, OCP, and numerous other shows throughout 2019 as the ecosystem gears up for this important architecture shift. With 7nm available from major foundries, the market will begin to move in this heterogenous direction as a way to higher capacity switch silicon. Not only will this pave the way for 25.6 Tbps and 51.2 Tbps fabrics, they will see increased product agility, lower cost, better power, and more products offerings from chiplet design.

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Netgear S8000 is an excellent (and expensive) Ethernet switch for gamers | killexams.com real questions and Pass4sure dumps

Netgear S8000

Netgear S8000

That's what the Netgear S8000 is, an Ethernet switch that makes up part of the company's high-performance Nighthawk line. An Ethernet switch is a pretty boring product. It's basically there to split your wired network connection between multiple devices.

So why, then, did Netgear make one that looks like something from a science fiction movie, that lights up, is pretty darn heavy, and retails for $100? Well, if you listen to the marketing, it's for gamers. And while the price tag is high and the design perhaps unnecessary, it's the smarts inside it that make the difference.

Netgear S8000

Netgear S8000

The NETGEAR Nighthawk(R) S8000 Gaming & Streaming 8-Port Advanced Gigabit Ethernet Switch is a versatile, ultra-performance, easily configurable network switch designed for expert gaming, 4K UHD media streaming, and basic home network connectivity. Its sleek and modern design make it the perfect for any modern home or small office. The Nighthawk S8000 brings low latency, traffic and port prioritization, and Quality of Service (QoS) management at the click of a button for ultra-high performance in high-demanding online/VR gaming and media streaming.

S8000 design and hardware

Do even gamers need to spend $100 on one of these?

It looks fantastic. That's all perhaps unnecessarily, but if you are a gamer there's a good chance you've put some effort into your setup and want something that'll fit in. On the outside, it's the outrageous design that differentiates it from any other Ethernet switch. Well, that and the blue lighting strip.

From Netgear:

Industry-first "cool-touch" premium zinc-alloy housing for durability and looks, with a soft-touch no-slip base.

The S8000 is an eight-port Gigabit switch, though one of these ports, labeled Uplink, is the internet connection from your router. So you've got seven other ports to plug in all of your things. The only other thing of note on the outside is a button to turn off the LED lighting. The power button is just beneath the lighting strip, too.

The company throws around terms like "low-latency," "4K gaming" and "VR" but in truth, the software that goes with the S8000 is where the beauty of this product comes to light.

The user interface for the S8000 settings is designed to be easy to use on both a PC and mobile, albeit in a browser rather than an app. You don't really want mountains of settings for something with such a relatively simple function, and Netgear has addressed it well.

The S8000 makes sure that your gaming device is the top priority right out of the box.

Netgear recommends you use port No. 1 for your main gaming device and port No. 2 for your main streaming device. Both of these have presets already applied in the software, so it's easy enough to run with it. Essentially there's a quality of service management within the switch, with your gaming device being the highest priority.

You can change this, of course, and you're able to easily adjust rates on the fly across any devices you have connected to the S8000. The idea though is that your online gaming never suffers, and the S8000 will make sure it gets the bandwidth it needs over anything else. I don't have VR to test with it, but the same principle applies. Bandwidth-heavy stuff gets priority.

Netgear S8000

Netgear S8000

Closing thoughts

Does it work? Absolutely. The dynamic quality of service has less of a visible impact maybe since you're not talking about a wireless connection, but it does work. And if you've got seven devices hooked up, being able to prioritize is helpful. That said, if you can hook up straight to your router you may not even need one of these, but you would benefit if your use case suits. A managed switch will have better control for high demand devices than the 'dumb' ports on the back of a router.

Whether it's worth $100 is more of a question. You get a three-year warranty with it and the software is incredibly easy to use, but it is, after all, an Ethernet switch. If you can get it on discount it's worth picking up if you're a gamer, especially if you're also a streamer. But it's a harder sell at full price.

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Trends in trusted computing and network security in military embedded computing | killexams.com real questions and Pass4sure dumps

trusted computing network security embedded computingBy Andrew McCoubreyand David Sheets

ASHBURN, Va. – Network security in embedded computing is getting more scrutiny these days. In a constantly evolving threat environment, where new attacks arrive virtually every day, system architects must design networks to be as secure as possible. That requires a constant review process to enable the necessary adaptation, modification, and updates to keep systems safe.

Network security involves providing protections against all devices that are connected or could have access to the network. In this area, embedded architectures are catching up to enterprise networks. In the enterprise environment, where there has always been the risk of an unauthorized person connecting on a port in an office or conference room, the need to lock down the network is well understood.

In comparison, airborne networks typically have been very controlled, with no network ports exposed. Physical access to ports in the past was easy to control. Today, however, they are seeing embedded networks connecting more devices and making more connection ports available, which makes trusted computing approaches imperative. Aboard commercial jetliners, for example, Ethernet might be available at every seat, and Wi-Fi might be provided for entertainment.

As more devices connect to the embedded network, the more of the network needs protecting. Adding to the security challenge is the growing use of converged networks. Instead of one purpose network, today's fast links can transport data from disparate systems over the same network. More systems sharing the network increases not only the potential for contention, but also the security challenge; more end points means more potential threats. They are seeing increased use of converged networking in military embedded systems.

Related: Optimizing cyber security and trusted computing on today’s connected military and commercial aircraft

The good news is there’s growing awareness of what’s necessary for effective network security; many of the important tools are familiar and readily available. One tool for securing the network is white-listing, or limiting access to trusted devices. This could be as simple as enabling each port only to allow traffic from a known MAC address. While simple to implement, MAC addresses can be changed and spoofed. Trusting a device just because it has the right address turns out not to be a very robust security solution.

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A more advanced technique to keep out unknown users involves IEEE 802.1x for port-based network access control (PNAC). 802.1x enables the network to authenticate a network endpoint using a cryptographic exchange. Instead of trusting a MAC address, trust is based on a certificate or other credentials. It implements port security via a feature on the network switch. 802.1x is a hybrid feature that needs support on the switch; that’s what controls turning the ports on and off). Still, it also requires clients, called “supplicants,” on the end points. That means that implementing a protection like 802.1x requires a whole system solution in which both the switches and the connected computers provide support.

Another challenge for providing network security on embedded systems involves upgrade cycles. Adding a security layer on which only one device is secured can introduce a weak link -- unless all other devices on the network also have that layer of security.

While hard-coding and 802.1x enable control over what devices can access the network, MACsec and IPsec tools use encryption to protect data on the move and prevent someone from snooping into that data. IPsec is an end-to-end protocol used originally for VPNs that connect from one office to another office over an untrusted network. In comparison, MACsec secures only a point-to-point connection.

Related: Lowering the costs of encrypted data storage in trusted computing

IPsec and MACsec help encrypt network data, and validate keys when establishing connections, but differ in how much data they encrypt. IPsec, for example, supports tunneling and transport modes that offer tradeoffs between overhead and the amount of encrypted data.

Apart from IPsec and MACsec, there are encryption standards like transport layer security that work at the application level. These require less support from the network infrastructure, but consume more processor overhead and encrypt even less, because they exist at the highest layers of the network stack.

Today, they typically see IPsec in local networks like airborne networks that are contained entirely within an aircraft. This protects against data being intercepted by other devices on the network. It also provides protection if the network switches are compromised.

It’s important to select network equipment and end points that provide good performance because they encrypt network traffic at high rates. MACsec encryption is typical for hardware, and is built into the PHY devices that provide the link-layer connections. IPsec encryption typically happens in software, but can require hardware acceleration to keep up with the network.

Related: A guide to international authorities for global trusted computing standards certification

Standards also can change over time, so it is important to stick with the latest versions. Early implementations of MACsec supported only AES 128 bit encryption keys, while AES 256 bit encryption was added later.

A major challenge can be finding people with the necessary expertise. Most are familiar with enterprise IT, yet those who know rugged embedded systems may not be up to date on the latest networking technologies. The intersection of people who understand both networking and embedded systems is small, but growing. What’s helping that intersection grow is the Internet of Things (IoT) phenomenon, which is taking all manner of embedded devices that were traditionally stand-alone appliances, and connecting them to networks.

As systems designers ask for network security solutions, their specific requirements still can be vague. Security, as yet, isn’t something you can just buy from a vendor. Instead, systems designers need to implement security across all products in the system, and either perform the architecture work themselves, or hire experts to do it for them. To design-in effective network security, it’s wise first to reach out to vendor network security experts at the very beginning of the project.

Keep in mind, too, that network security doesn’t end with the architecture or initial implementation; it needs to be revisited on a regular basis. Patches likely will be necessary to address vulnerabilities at each iteration, at every software upgrade, and every time a new device gets added.

Related: Introduction to certification authorities for trusted computing in military and avionics products

Even some fundamental tools to secure networks may need to change. Most underlying network security today is based on public key cryptography. Future generations of quantum computers likely will require a reexamination of some cryptographic primitives on which network security designers depend.

Network security is a complex and evolving challenge, and solutions are being developed continually to address emerging threats. Leveraging the latest commercial technology is key to ensuring that connected embedded systems are secure, today and in the future.

Andrew McCoubrey is the senior product manager for switching and routing products in the C4 solutions group of the Curtiss-Wright Corp Defense Solutions division in Ashburn, Va. David Sheets is senior principal security architect at Curtiss-Wright Defense Solutions in Ashburn, Va.

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