Sunday, July 5, 2015

Video: Corsa Demos SDN Metering and QoS




Corsa Technology is a networking company that offers a full, OpenFlow programmable data plane that delivers performance, flexibility, and scale. Its DP6400 series switch offers full support for OpenFlow 1.3, with multiple match/action tables, deep packet buffers and fast flow-mod update capability in a fully programmable platform.

At the recent Open Networking Summit 2015 in Santa Clara, California, Corsa demonstrated its new bandwidth metering and QoS capabilities.   Corsa also conducted a multi-vendor packet/optical optimization demonstration,  along with a demonstration of the new "Atrium" software release from the ONF.

The first use case for SDN-based metering and QoS involves large data set transfers, such as between major research facilities and super computer labs. Corsa's demo uses OpenFlow 1.3.

Presented by Bruce Gregory, David Whittaker, and Carolyn Raab.

https://youtu.be/obUZTBB76xM

Blueprint: The Evolution of the Network

by Leon Adato, Head Geek, SolarWinds

Learn from the past, live in the present and prepare for the future.

While this may sound like it belongs hanging on a high school guidance counselor’s wall, they are words to live by, especially in IT. They apply perhaps to no other infrastructure element better than the network. After all, the network has long been a foundational building block of IT, it’s even more important today than it was in the days of SAGE and ARPANET, and its importance will only continue to grow in the future while simultaneously becoming more complex.

For those of us charged with maintaining the network, it’s valuable to take a step back and examine the evolution of the network. Doing so helps us take an inventory of lessons learned—or the lessons we should have learned; determine what today’s essentials of monitoring and managing networks are; and finally, turn an eye to the future to begin preparing now for what’s on the horizon.

Learn from the Past

Think back to the time before the luxuries of Wi-Fi and the proliferation of virtualization, and before today’s wireless and cloud computing.

The network used to be defined by a mostly wired, physical entity controlled by routers and switches. Business connections were based on T1 and ISDN, and Internet connectivity was always backhauled through the data center. Each network device was a piece of company-owned hardware, and applications operated on well-defined ports and protocols. VoIP was used infrequently, and anywhere connectivity—if even a thing—was provided by the low-quality bandwidth of cell-based Internet access.

With this yesteryear in mind, consider the following lessons we all (should) have learned that still apply today:

It Has to Work
Where better to start than with a throw back to IEEE RFC1925, “The Twelve Networking Truths”? It’s just as true today as it was in 1996—if your network doesn’t actually work, then all the fancy hardware is for naught. Anything that impacts the ability of your network to work should be suspect.

The Shortest Distance Between Two Points is Still a Straight Line
Wired or wireless and MPLS, EIGRP or OSPF, your job as a network engineer is still fundamentally to create the conditions where the distance between the provider of information, usually a server, and the consumer of that information, usually a PC, is as near to a straight line as possible. When you forget that but still get caught up in quality of service maps, automated functions and fault-tolerance, you’ve lost your way.

An Unconfigured Switch is Better than the Wizard
It was a long-standing truth that running the configuration wizard on a switch was the fastest way to break it, whereas just unboxing and plugging it in would work fine. Wizards are a fantastic convenience and come in all forms, but if you don’t know what the wizard is making convenient, you are heading for trouble.

What is Not Explicitly Permitted is Forbidden
No, this policy it’s not fun and it won’t make you popular. And it will actually create work for you on an ongoing basis. But there is honestly no other way to run your network. If espousing this policy will get you fired, then the truth is you’re going to get fired one way or the other. You might as well be able to pack your self-respect and professional ethics into the box along with your potted fern and stapler when the shoe drops. Because otherwise that huge security breach is on you.

Live in the Present 

Now let’s fast forward and consider the network of present day.

Wireless is becoming ubiquitous—it’s even overtaking wired networks in many instances—and the number of devices wirelessly connecting to the network is exploding (think Internet of Things). It doesn’t end there, though—networks are growing in all directions. Some network devices are even virtualized, resulting in a complex amalgam of the physical, the virtual and the Internet. Business connections are DSL/cable and Ethernet services, and increased use of cloud services is stretching Internet capacity at remote sites, not to mention opening security and policy issues since it’s not all backhauled through the data center. BYOD, BYOA, tablets and smartphones are prevalent are creating bandwidth capacity and security issues. Application visibility based on port and protocol is largely impossible due to applications tunneling via HTTP/HTTPS. VOIP is common, also imposing higher demands on network bandwidth, and LTE provides high-quality anywhere connectivity.

Are you nostalgic for the days of networking yore yet? The complexity of today’s networking environment underscores that while lessons of the past are still important, a new set of network monitoring and management essentials is necessary to meet the challenges of today’s network administration head on. These new essentials include:

Network Mapping
While perhaps a bit back-to-basics and also suitable as a lesson we all should have learned by now, when you consider the complexity of today’s networks and network traffic, network mapping and the subsequent understanding of management and monitoring needs has never been more essential than it is today. Moving ahead without a plan—without knowing the reality on the ground—is a sure way to make the wrong choices in terms of network monitoring based on assumptions and guesswork.

Wireless Management
The growth of wireless networks presents new problems, such as ensuring adequate signal strength and that the proliferation of devices and their physical mobility—potentially hundreds of thousands of network-connected devices, few of which are stationary and many of which may not be owned by the company (BYOD)—doesn’t get out of hand. What’s needed are tools such as wireless heat maps, user device tracking, over-subscribed access points and tracking and managing device IP addresses.

Application Firewalls
When it comes to surviving the Internet of Things, you first must understand that all of the “things” connect to the cloud. Because they’re not coordinating with a controller on the LAN, each device incurs a full conversation load, burdening the WAN and every element in a network. And worse, many of these devices prefer IPv6, meaning you’ll have more pressure to dual-stack all of those components. Application firewalls can untangle device conversations, get IP address management under control and help prepare for IPv6. They can also classify and segment device traffic; implement effective quality of service to ensure that critical business traffic has headroom; and of course, monitor flow.

Capacity Planning
Nobody plans for not growing; it’s just that sometimes infrastructure doesn’t read the plan we’ve so carefully laid out. You need to integrate capacity for forecasting tools, configuration management and web-based reporting to be able to predict scale and growth. There’s the oft-quoted statistic that 70 percent of network outages come from unexpected network configuration changes. Admins have to avoid the Jurassic Park effect—unexpected, but what in hindsight were clearly predictable outages is the bane of any IT manager’s existence. “How did we not know and respond to this?” is a question nobody wants to have to answer.

Application Performance Insight
Many network engineers have complained that the network would be stable if it weren’t for the end users. While it’s an amusing thought, it ignores the universal truth of IT—everything we do is because of and for end-users. The whole point of having a network is to run the business applications end-users need to do their jobs on. Face it, applications are king. Technologies such as deep packet inspection, or packet-level analysis, can help you ensure the network is not the source of application performance problems.

Prepare for the Future

Now that we’ve covered the evolution of the network from past to present—and identified lessons we can learn from the network of yesterday and what the new essentials of monitoring and managing today’s network are—we can prepare for the future. So, stay tuned for part two in this series to explore what the future holds for the evolution of the network.

About the Author 

 Leon Adato is a Head Geek and technical evangelist at SolarWinds, and is a Cisco Certified Network Associate (CCNA), MCSE and SolarWinds Certified Professional (he was once a customer, after all). Before he was a SolarWinds Head Geek, Adato was a SolarWinds® user for over a decade. His expertise in IT began in 1989 and has led him through roles as a classroom instructor, courseware designer, desktop support tech, server support engineer, and software distribution expert. His career includes key roles at Rockwell Automation®, Nestle, PNC, and CardinalHealth providing server standardization, support, and network management and monitoring.

About SolarWinds 
SolarWinds (NYSE: SWI) provides powerful and affordable IT management software to customers worldwide from Fortune 500® enterprises to small businesses. In all of our market areas, our approach is consistent. We focus exclusively on IT Pros and strive to eliminate the complexity that they have been forced to accept from traditional enterprise software vendors. http://www.solarwinds.com/



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The New Hewlett Packard Enterprise - $55 Billion in Annual Revenue

In an SEC filing last week, HP provided financial details on one of the two companies that will result from its upcoming split.

The mission statement for Hewlett Packard Enterprise Company is to "provide the cutting-edge technology solutions customers need to optimize their traditional IT while helping them build the secure, cloud-enabled, mobile-ready future that is uniquely suited to their needs."  It will include the current parent company's Enterprise Group, Enterprise Services, Software and Financial Services businesses. Its portfolio will include  servers, storage, wired and wireless networking, converged systems, software and services, and customized financing solutions.

The company said its competitive differentiator is its "broad and deep" end-to-end solutions portfolio and IT expertise. It also possesses a global distribution and partner ecosystem, along with a multi-year innovation roadmap.

The extensive filing provides in-depth financial data on the soon to be independent company, along with the long and required list of risks and uncertainties.

http://www.sec.gov/Archives/edgar/data/1645590/000119312515243056/d944600dex991.htm

PubNub Raises $20M for Data Stream Network for Mobile Apps

PubNub, a start-up based in San Francisco, $20 million in Series C funding for advancing its Data Stream Network for mobile applications and IoT.

PubNub's Data Stream Network is specifically designed for secure, realtime communication over the Internet.  It features an easy-to-use API that enables its customers to connect, scale, and manage realtime applications and IoT devices. The company says it delivers 250ms worldwide data transfer times and scalability for hundreds of millions of devices. Data streamed through the PubNub Data Stream Network is instantly replicated to 14 geographically distributed data centers.

The funding round was led by Sapphire Ventures with participation from existing investors, Relay Ventures and Scale Venture Partners.

“The coming explosion in growth of IoT devices combined with the existing massive demand for mobile and web realtime interaction represents an extraordinary market opportunity,” said Todd Greene, CEO of PubNub. “Sapphire Ventures brings deep infrastructure expertise, a shared vision and commitment to our company’s global growth and success evidenced by its market development team. We’re excited to work with Sapphire Ventures, Relay and Scale to achieve our vision to connect every device on the planet in real-time.”

http://www.pubnub.com

See also