Tag Archives: Ciena

Updates from Ciena

The Adaptive Network: Why automation alone isn’t enough
By Keri Gilder – Just imagine, instead of 70, your heart rate was at 100 beats per minute. This could be a warning sign that you are on the verge of having a heart attack.

If your doctor were to get this information in real time, they could check the readings against your medical records and see that this is completely out of the norm and then warn you to seek medical assistance immediately.

However, if your personal trainer received that same information, would they reach the same conclusion as your doctor? Your trainer has access to a different database, which might show your resting heart rate as well as the rate during high-intensity training. Knowing that you are likely exercising, they would instead conclude that there is no need to go to the hospital after all.

This clearly demonstrates that just accepting raw data without filtering and proper analysis is no longer good enough and can potentially have serious repercussions. Instead, it is critical that we have diversity of thought when it comes to how we interpret data.

This is not just true for our health or other day-to-day scenarios, but can also be applied to the communication networks that carry and house our information. more>

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Updates from Ciena

Why the Secret Behind Strong Early Adoption of 400G Technology is … 200G

By Helen Xenos – This month, we shipped our 5,000th 400G-capable coherent optical transponder, confirming our prediction that the use of 400G technology is ramping 3 times faster than 100G.  What may come as a surprise, however, is that the dominant application driving 400G deployments is not 400G, but 200G (long haul-datacenter interconnect to be precise).

Why? The technology that enables 400G wavelengths has a lot to do with expanding the application space for 200G as well.

To fully understand the demand drivers for 400G, it’s important to clarify the various ways 400G is defined. The term “400G” is quite popular in today’s optical networking conversations, but can also have different meanings depending on the context in which it is being used.

So, which applications are driving 400G deployments? We hear so much about the fast-growing metro WDM market, 400ZR and the need to maximize capacity for short reach DCI applications, that intuitively you would think this is the “sweet spot” application.

In fact, the most popular use case we see for early 400G adoption is to support the rise of 200G long-haul for aggressive DCI network builds. more>

Updates from Ciena

4 Data Center Interconnect Developments You Need to Know
By Kent Jordan – The Data Center Interconnect (DCI) market is evolving rapidly and new compact, modular devices have been introduced to help network operators quickly and easily deploy new capacity to keep up with demand. But, as the adage says, “the more things change, the more they stay the same”. So, what’s new with DCI and what hasn’t changed in the last year?

One thing that hasn’t changed is the need for more interconnect capacity. Interconnect bandwidth growth is still on the rise, and it’s growing rapidly. By 2020, interconnect bandwidth has been forecasted to grow up to 5,000 Tbps, with double-digit growth rates across a variety of industry segments from Cloud and IT to Healthcare and Energy. All are poised to experience large capacity growth in the coming years, which means many of the same challenges from the past year still exist.

Network operators are challenged with keeping up with growing demand and offering content and/or services globally. They also have a need for automation to speed bandwidth activation and improve their customers’ quality of experience. On-going operational costs remain a challenge as well, with a need to reduce footprint and power consumption. more>

Updates from Ciena

5 key wireline network improvements needed for 5G
By Brian Lavallee – Ask an end-user about how their phone connects to the network, and they’ll likely only talk about cellular or wireless technology, which is also where most of the current 5G industry hype is focused, and for good reason, as this is the first part of the network to be upgraded. However, the reality is that RAN (Radio Access Network) only makes up a small portion of the end-to-end path that data from a connected device must travel to provide connectivity. The rest of the path is primarily a fiber-optic transport network.

With 5G coming soon, featuring data rates as much as 100 times faster than what’s currently available, the wireline infrastructure that connects end-users (man and machine) to accessed content residing in data centers, must be ready to support upwards of 1,000 times more data flowing across it.

How can network operators prepare? Well, here are five key areas within the wireline network that will need to be upgraded and modernized to support 5G.

  1. Fronthaul
  2. Scalability
  3. Densification
  4. Virtualization
  5. Network Slicing

The move to 5G won’t be a simple network upgrade. It’s a long journey with a high-performance wireline network as the critical component to commercial success for both 4G strategies and the evolution toward 5G. more>

Updates from Ciena

From Land to Sea to Cloud
By Brian Lavallée – Submarine networks carry over 99% of all telecommunications traffic between continental landmasses making them easily classified as critical infrastructure. There’s also no “Plan B” for these submerged assets, so they’ll continue to act as the jugular veins of intercontinental connectivity for years to come and will thus require constant technology innovation to reliably and securely maintain this pivotal role.

But exactly what traffic is transported back and forth on seabeds around the world? According to respected industry analyst firm TeleGeography, it’s increasingly Data Center Interconnection (DCI) traffic, and LOTS of it.

It’s projected that Internet Content Providers (ICPs) will soon account for the majority of submarine traffic in all regions of the world. Impressive for a group of companies that just over a decade ago, were essentially non-players in the submarine networking market.

Given the astonishing amount of DCI traffic added to traditional wholesale traffic, several new technologies were introduced to address this extraordinary growth, which sits at around 40% CAGR worldwide, according to TeleGeography. more>

Updates from Ciena

Debunking 5 common myths about 5G
By Brian Lavallée – When 5G begins to roll out, it will likely start in a select group of countries like the United States, South Korea, China, Japan, and India. However, we won’t be saying goodbye to 4G anytime soon. The truth is, 5G was never intended to replace 4G, unlike 4G that was expected to replace 3G (but never really did). When 5G rolls out, 4G and its multiple variants will still play a key role in the network — particularly for less bandwidth-heavy applications and use cases.

This means operators need to plan for both 4G today and 5G tomorrow, as both will coexist and share same network resources for the foreseeable future.

There’s no doubt: higher download speeds are a big part of 5G and is what most people are most excited about but equally important is that 5G will offer up to 10 times lower latency than 4G. It is this combination of faster download speeds and reduced latency that opens up new use cases, such as augmented reality and virtual reality.

Since the 5G standards are not complete, there is no such thing as a “5G product” today. To get around this, some talk about having 4.5G (better than 4G, but not quite 5G) products that meet the current draft standards being proposed today. However, it is important to note; you can’t credibly make this claim because if you build something based on where the standards are now, there is still a chance the product won’t be able to adapt, such as via software upgrades, when standards are approved later. more>

Updates from Ciena

Following the 3-pillar approach to effective security strategy
By Paulina Gomez – In response to the rapidly evolving cybersecurity threat landscape, regulations around the world are upping the pressure on organizations to protect their sensitive customer and operational data. The maximum fine for a data breach in the upcoming European General Data Protection Regulation (GDPR), for example, could be up to 4% of global revenues; enough to put even large organizations out of business.

How can an organization minimize its security risks?

It’s about more than just encryption and firewalls. A comprehensive, multi-layer security strategy is vital to an effective defense. By following these three key pillars to achieve the confidentiality, integrity, and availability of data in your network, you will be protecting your data, your customers, and your business.

The central driving vision for any data security approach is to ensure customer data remains confidential at all times. This requires an end-to-end security solution protecting network traffic from the end point to the data center. more>

Updates from Ciena

How is change management the key to successful cable infrastructure modernization?
By Susan Friedman – The winds of change are blowing for the Cable/MSO Industry. And it’s all happening faster than anyone thought. Last month, cable industry gurus met in Denver for Light Reading’s 11th annual Cable Next Gen Technologies and Services conference, and it was clear embracing change is critical to meeting the end-user’s needs.

We’ve heard a lot about the impact of streaming services and cord cutting. But it was clear from discussions at the show that consumers are not abandoning cable, they are changing their consumption habits. They are now buying fast and reliable internet services, and lots of it. Consumers just can’t get enough of connected devices and the Smart Home is only smart when connected to the internet.

Here is a big change, the internet is now the epicenter of a cable operators network, not video delivery. According to Leichtman Research Group, cable rules U.S. broadband more than ever, with subscribers up 2.7 million in the last quarter of 2017. That’s 64.4% of the total market for internet services.

Technology change is also a disruptive cycle for the cable workforce, subscribers, or anyone trying to navigate thru a utility work zone. more>

Updates from Ciena

5 ways to future-proof your network today to support IoT tomorrow
By Rob Tomkins – There is no getting around the fact that networks are seeing an explosion of data coming from “smart” objects that connect the physical and digital worlds. In fact, IHS forecasts that the market will grow from 15.4 billion devices in 2015 to 75.4 billion in 2025. Despite this increase in data, and no matter what new IoT technology or application is announced, users’ expectations remain high — networks must be up and running constantly and bandwidth must always available.

Plus, now that IoT, including Industrial IoT, is becoming more intertwined with mission-critical services such as smart grids and emergency alert systems — the stakes are even higher. Even the slightest network latency or jitter goes beyond a simple inconvenience and has the potential to cause life-threatening situations.

The time is now for service providers, enterprises and cities to get their networks in shape to handle the increase in bandwidth requirements, as well as prepare for what is to come tomorrow. Unfortunately, while it’s a simple concept, it’s not such a simple task.

In many ways, the current IoT landscape resembles the Wild West. more>

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Updates from Ciena

Coherent optical turns 10: Here’s how it was made
By Bo Gowan – This is the story of how a team of over 100 people in Ciena’s R&D labs pulled together an impressive collection of technology innovations that created a completely new way of transporting data over fiber…and in the processes helped change the direction of the entire optical networking industry.

Back in 2008, many in the industry had serious doubts that commercializing coherent fiber optic transport was even possible, much less the future of optical communications. That left a team of Ciena engineers to defy the naysayers and hold the torch of innovation.

“What we first began to see at Telecom 99 was that we could achieve these high speeds the brute force way, but it was really, really painful,” said Dino DiPerna in an interview.  Dino, along with many in his team, were brought on by Ciena as part of the company’s 2010 acquisition of Nortel’s optical business.  He now serves as Ciena’s Vice President of Packet-Optical Platforms R&D and is based in Ottawa.

By ‘brute force’ Dino is referring to the traditional time-division multiplexing (TDM) method that had been used until then to speed up optical transmission – basically turning the light on and off at increasingly faster speeds (also called the baud or symbol rate). “But once you start pushing past 10 billion times per second, you begin running into significant problems,” said DiPerna.

Those complexities had to do with the underlying boundaries of what you can do with light. The fundamental issue at hand was the natural spread and propagation of light as it travels along the fiber – created by two phenomenon called chromatic dispersion and polarization mode dispersion, or PMD. As you push past 10G speeds, the tolerance to chromatic dispersion goes down with the square of the baud. Due to PMD and noise from optical amplifiers, a 40 Gbaud stream will lose at least 75% of its reach compared to a 10 Gbaud stream.

This reach limitation had two consequences. First, it meant adding more costly regenerators to the network. Second, it meant that the underlying fiber plant required a more expensive, high-quality fiber to operate properly at 40G transmission speeds. more>

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