Article | May 26, 2021
If we’ve learned anything in the past year, it’s how much our progress hinges on the ability to share and collaborate around data.During the pandemic, we watched as scientists from around the world raced to develop COVID-19 vaccines in record time. A process that typically takes 10 to 15 years took less than a year—due in part to global collaboration and data sharing.
As we transition to the post-COVID-19 era, the “need for speed has never been greater,” says McKinsey. The organizations that will thrive in this new economy will facilitate collaboration, empower individuals and teams, and build impactful partnerships. That success requires shifting from the traditional “don’t share data unless” mindset to a data-sharing mindset grounded in a solid foundation of technology, data-driven culture, and processes.
Article | May 26, 2021
Network security today is losing the battle and a lot of it is blamed upon the traditional security devices. Imagine running next-gen IT Infrastructure secured by security tools made to secure legacy IT.Data breaches have increased substantially and IT professionals are continuously looking at new ways to improve their network security. In this scenario, SD-WAN emerges as one formidable option to implementthat will bolster your network security.
Table of Contents:
- What is SD-WAN?
- How does SD-WAN work?
- What are the main benefits of SD_WAN to network security?
- What are the other advantages of SD-WAN?
Let’s dig into it.
What is SD-WAN?
SD-WAN stands for software-defined wide area network (or networking). A WAN is a connection between local area networks (LANs) separated by a substantial distance—anything from a few miles to thousands of miles. The term software-defined implies the WAN is programmatically configured and managed. So, it can be easily adapted quickly to meet changing needs.
How does SD-WAN work?
An SD-WAN connects end users to virtually any application, hosted at any location (e.g., in the public cloud or a company data center), via the best available or most feasible transport service, whether that’s an MPLS (Multiprotocol Label Switching), broadband, cellular or even satellite internet link. To deliver this level of flexibility and performance to users in digital workspaces, an SD-WAN utilizes a control function that continuously analyzes traffic flows across the WAN and intelligently directs traffic in accordance with current policies.
The primary means of control in an SD-WAN is centralized. It often resides in a SaaS application running on a public cloud. Control is decoupled from the hardware to simplify network management and improve the delivery of services. SD-WAN appliances (and virtual appliances) follow operational rules passed down from the central controller. This greatly reduces or eliminates the need to manage gateways and routers on an individual basis.
SD-WAN gateways support hybrid WAN, which implies that each gateway can have multiple connections using different transports—MPLS, broadband Internet, LTE, etc. A virtual private network (VPN) is typically set up across each WAN connection for security. Consequently, the SD-WAN can be an overlay spanning a diverse communications infrastructure.
Dynamic path selection
Another feature of SD-WAN is dynamic path selection—the ability to automatically and selectively route traffic onto one WAN link or another depending on network conditions or traffic characteristics. Packets may be steered onto a particular link because another link is down or not working very well, or to balance network traffic across all available links. SD-WAN can also identify packets by application, user, source/destination, etc. and send them down one path or another based on those characteristics.
Policy is what determines where dynamic path selection will steer traffic and what level of priority (quality of service, or QoS) it is given. Business intentions can be implemented as policies via the central management console. New and updated policies are translated into operational rules and downloaded to all SD-WAN gateways and routers under control.
For example, to ensure the best performance for VoIP and interactive web conferences, a policy may be created by giving their packets transmission priority and routing them onto low-latency paths. Cost savings can be realized by sending file back-ups across a broadband Internet connection. WAN traffic that requires a high level of security can be restricted to private connections (e.g., MPLS) between sites and required to pass through a robust security stack when entering the enterprise.
SD-WAN has the ability chain itself together with other network services. WAN optimization (acceleration) is often combined with SD-WAN to improve network and application performance. Internet traffic leaving and entering a branch office may be routed across a VPN to a cloud-base security service to strike a balance between performance, security, and cost.
Read more: GET THE MOST OUT OF YOUR SD-WAN: FEATURES YOU NEED TO START USING TODAY
What are the main benefits of SD_WAN to network security?
Eliminate VPN concerns
One of the first areas in which SD-WAN impacts security is when a company uses the internet as a method of transport.
Before SD-WAN came along and companies were using internet as a backup or even a primary transport method, they would build a VPN or a DMVPN to ensure secure transport of their traffic. This introduces a couple of issues, the first of which is this proliferation of VPNs that has to be managed. The company must have firewalls sitting at their data center, along with a VPN device or firewall sitting in the remote locations to be able to do these VPNs. Every site is dependent on the effort to be up on the network.
- Hamza Seqqat, Director of Solutions Architecture, Apcela
Failover is an issue with this VPN approach, he said. Companies can’t seamlessly failover from a fiber-based type of transport without having to strike some keys in between. It's hard and expensive to do seamless failover.
“Now you don't have to have firewalls for VPNs. You don't have to worry about building your own VPNs or encrypting your traffic,” Seqqat said. “Every SD-WAN product comes with a controller that takes care of things seamlessly. That means there is this smart software-defined engine that builds all these IPsec tunnels between all the locations as soon as you plug the device in. You're not actually having to build a VPN—the controller does it automatically for you, so all you have to do is give the device an IP address or enable DHCP and let it pick an IP address from the DHCP server. Suddenly it's on the network and its building tunnels to all the sites.”
He added that the SD-WAN controller builds a full mesh, so it can talk to every one of the sites without having to go back to the data center. This feature alone can reduce a company’s security footprint significantly because the site-to-site traffic becomes secure, easy, and seamless.
Reduce traffic going through security
A second significant benefit of SD-WAN that impacts security strategy is that it reduces the amount of traffic that needs to go through security parameters because all site-to-site traffic is encrypted. This makes security a bit easier to manage.“For a lot of companies, when they do VPNs for site-to-site traffic, they have to go through firewalls or some kind of encryption mechanism, and that increases their security footprint. It increases the complexity and the cost of security,” Seqqat said. “SD-WAN changes how traffic is routed through security.”
Seqqat gave an example of a site that has a gig worth of bandwidth, and out of that gig of bandwidth, some traffic goes to the internet and some goes to site-to-site.
“Without SD-WAN, generally you would have to run that whole gig through a firewall, and the firewall will split the traffic into what goes to the data center and what goes to the internet,” he said. “When you do SD-WAN, you don't have to do that. You can separate the traffic at the SD-WAN with a split tunnel, so you take half of the traffic and push it through the firewall to go to the internet and the other half goes straight site-to-site without having to go through a security parameter. Now you have a firewall to handle 500 megs as opposed to a gig, and that makes a huge difference because most security products are based on throughput and utilization. So, that can bring some cost benefits and ease management as well.”
Security inherent to SD-WAN
A third area where SD-WAN changes security strategy is the fact that certain security features can be implemented directly through the SD-WAN platform, which reduces costs and complexity in the actual security platform.
“This depends on what aspects of security you're talking about,” Seqqat said. “For example, security is included in the Silverpeak SD-WAN product, so the Silverpeak devices really do most of the security for you. You don't have to deploy another firewall on top of that. With Versa’s SD-WAN, you can virtualize the firewall, so there’s no need to deploy physical firewalls.”
For sites that simply need very basic security, SD-WAN has some inherent security capabilities. It can do things such as allow and deny certain sites and limit traffic that goes to certain sites.
When you look at most SD-WAN products, you can usually kind of steer toward one or another based on your security requirements. Deploying SD-WAN in itself can really eliminate the need for security at several locations or extend the security you have been using.
- Hamza Seqqat, Director of Solutions Architecture, Apcela
Simplify use of security platforms
In his final point, Seqqat said SD-WAN providers are making a lot of progress in partnering with both cloud security providers and cloud service providers. By making traffic encrypted and secure via SD-WAN, security platforms will only have to deal with public internet traffic.
“SD-WAN providers are really working towards partnering and certifying different security products,” he said. “Consider Zscaler as an example. Some SD-WAN products automatically route all your traffic through Zscalar, which does a cloud-based security parameter before it goes out to the internet or to cloud service providers.”
Seqqat said the most important part comes in the fact that Zscalar is distributed across 35 or 40 data centers that are all security parameters.
“Making that routing decision as to what data center your traffic goes through before it goes out to the Internet is extremely important to performance,” he said. “If your Office 365 instance is hosted in Seattle and your users in Europe are trying to reach that, which Zscalar data center the traffic is going to go through before it goes through the Seattle instance of O365 makes all the difference in what latency is going to be at round trip.
“SD-WAN provides somewhat of an automation and optimization of how traffic goes through Zscalar data centers based on performance metrics. SD-WAN can pull latency and jitter and packet loss and all that kind of stuff, so there is some intelligence that happens when a routing decision is being made as to where user traffic is going to go for security scrubbing or security features before it goes out to the cloud provider or to the Internet. That’s a huge feature that comes into play whenever you deploy SD-WAN.”
Read more: FOR SERVICE PROVIDERS SD-WAN IS A MIXED BLESSING
What are the other advantages of SD-WAN?
SD-WAN has many advantages when implemented well:
More predictable and reliable application performance, which helps support users in any digital workspace, across all connections. Superior connection security for cloud applications, without the performance tradeoffs of MPLS backhauling. Congestion reduction due to lack of bandwidth or brownouts with aggregation of bandwidth via multiple bonded and disparate or redundant links.
More reliable access to apps and fewer slowdowns due to congestion.
Resiliency and redundancy with fast failover when outages impact WAN connections.
Quality of service for prioritizing business-critical application traffic.
Fast deployments that fuel business agility when bringing applications online at a branch office, or simply changing the configurations. Zero-touch provisioning allows fast set up of sites in minutes with local staff instead of hours or days.
Reduced network transport costs and more flexibility through the use of MPLS-alternatives like broadband and cellular. Quick procurement of bandwidth from multiple transport services, contrast to the long lead times needed with legacy WAN carrier-based technologies.
Simplified administration with a centralized console eliminates the complexity of configuring edge devices in the field.
Deep SD-WAN analytics to monitor links for performance characteristics. Analytics benefit administrators who can use them when troubleshooting problems across the WAN.
Simpler branch office infrastructure that doesn’t require management of as many single-function devices
Intelligent traffic steering and dynamic path selection
Integrated security with leading 3rd-party solutions, including those for SaaS security
Interest in SD-WAN among organizations is on the rise, and we hope to see a tremendous rise in its adoption in network security strategies over the next few years. Vendor selection will be one of the factor for successful implementation of SD-WAN, as many are quickly developing new and effective software-defined platforms. An ideal vendor would be the one who effectively addresses your specific pain points and is able to meet your current as well as future requirements.
Read more: SD-WAN SECURITY: THE IMPACT OF ORCHESTRATED SERVICES MULTIPLICITY
Article | May 26, 2021
If you are clued into IT, then most likely, you are aware of the latest trending technology, edge computing data centers.
Edge Computing ensures exceptional speed, with firm privacy and security compared to the conventional cloud methods, thus making edge data centers an imperative option for everyone.
The world is undoubtedly moving faster, thereby perpetually pushing the power of next-generation innovation.
Edge computing data center has emerged as a substitute to cloud computing, that keeps the data processing power at the “edge” of the network.
But, it also comes with a set of challenges to the network.
Edge computing devices that have processing functions are expensive and to operate the older version, additional equipment is required, which incurs extra expenditure.
Despite the challenges, edge computing has turned out to be the biggest technology investment.
So, let’s break it down here with comprehensive details to understand how this latest trending technology is all set to shape the future of the data center.
A Brief on Edge Computing
The word edge refers to the literal geographic distribution that brings computation and data storage nearer to the data sources.
It improves the response duration and saves bandwidth as it runs fewer processes in the cloud and shifts those processes to local destinations such as on a user’s computer, an edge server, or an IoT for that matter.
In a nutshell, edge computing is a topology that enables data to be analyzed, processed, and transferred at the edge of a network, It helps diminish the long-distance communication that takes place between a client and server.
A significant advantage of using edge computing lies in its high speed and better reliability. In addition, it offers improved security by distributing processing, storage, and applications across wide-ranging devices and data centers.
What’s more, it paves the way for a budget-friendly route to scalability as well as versatility, enabling organizations to expand their computing capabilities through an amalgamation of IoT devices and edge computing data centers.
Edge Data Centers and Their Usage!
There isn’t any specific explanation that would describe the idea of an edge data center, considering it isn’t one consistent style of the facility. It instead consists of smaller facilities that serve both edge computing and larger-scale cloud services.
Since they are located closer to the population, they could easily extend the edge of the network to deliver cloud computing resources and cached content to end-users. Typically, they connect to a larger central data center or multiple computer data centers seamlessly.
Latency has forever been a matter of concern for cloud data center managers. In recent times, it has emerged as a key obstacle due to big data, the Internet of Things, cloud and streaming services, and other technology trends.
Moreover, in today’s time and age, end-users and devices demand access to applications and services anytime and anywhere, which leaves no room for latency. Consequently, companies across the spectrum are establishing edge data centers to ensure cost-effective and high-functionality ways to provide customers with content and performance.
A great way to learn more about the data center would be to understand its usage. The following are some of the services that primarily rely on edge computing:
Internet of Things
Internet of Things tools essentially require low latency and reliable connections to the data center to function with high intensity. IoT devices add up a vast number of edge computing utilities; thus using edge computing makes it simple and effective.
Streaming content is one of the most consumed form of infotainment. Users today want their video to get started with a single click that edge facilities help achieve.
While Drones are increasingly getting popular, their features are also massively advancing. For example, with edge computing, drones could be controlled even from far-flung locations without any hitch.
AI is one of the most thriving technologies that have taken over the world with its magnificent scalability, To make AI advantageous to the system, it should be able to access data, process it, and communicate with the end-users effectively and quickly which an edge data center allows.
Virtual Reality needs to get updates as quickly as possible to create an immersive world for the users. Though primarily associated with gaming, VR has also gained recognition for different paradigms such as communication, education, and several other significant uses.
Edge Computing and Data Centers – The Future!
A dedicated 5G Provider
Edge Computing is underway, building mammoth telecommunications capabilities into data center growth trends. These facilities could change the dynamics of 5G providers for enterprise brands and emerge as the dedicated 5G providers for organizations.
Support sustainable business goals
Edge data centers are being looked to as a periphery that can help build more efficient solutions to enable the sector’s sustainability. Edge computing is specifically designed to keep applications and data closer to devices and their users. Therefore, there is little doubt over the impact that edge computing will have on sustainable business goals.
Making way for Robot Security Guards
Evolution in AI and IoT has drastically changed the human staffing needs inside the data centers and made way for Robots. Currently, Robots have been deployed in some of the hyper-scale data centers for specific tasks. Whether it is the automated inspection, faulty disc locating, or disc charging, with Robots at the helm of affairs, everything can be completed seamlessly.
Many data center and robotics professionals are predicting that the next couple of years will be big leaps when it comes to placing more robotics in the data center environment.
Bill Kleyman - now Switch EVP of digital solutions - wrote in 2013.
How Does One Choose a Location For a Data Center?
Data centers are a critical part of any business enterprise operations. Hence, decisions regarding its locations cannot be relegated to an arbitrary choice.
In the past, companies used to set up their edge data centers closer to their offices to maintain the proximity. However, that is swiftly changing now as the equipment administration and monitoring can be achieved remotely.
With the data center industry transforming, performance is no longer the sole consideration.
To create a defining success of the data centers, companies are now looking for different sites for their data centers, primarily focusing on factors like economic, political, social, and geographical.
The current scenario highlights the significance of considering Energy efficiency, business continuity plan, and resource optimization. With so much at stake, the edge data centers should be effortlessly accessible.
Edge computing and data center growth has garnered a lot of interest among the users over the past few years. It will continue to thrive for many more years to come as it meets the eye of the global tech demands and the current and future needs of the users worldwide.
Frequently Asked Questions
What are the benefits of edge computing?
One of the top benefits of edge computing is its quick response time and low latency period across all devices. It also simplifies the bandwidth and creates less risk in corporate security.
What are the drawbacks of edge computing?
A significant drawback of edge computing is the need of a huge storage capacity. The security challenge is also relatively high due to the massive amount of data stored in it. Moreover, the expensive cost factor is also a disadvantage of it.
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Article | May 26, 2021
nubia and its CEO Ni Fei, in particular, have really been going the extra mile to hype-up the upcoming Red Magic 5G phone. Earlier teasersfocused on 5G connectivity, 144Hz display refresh rate, raw performance and active cooling, but now attention shifts a bit as we draw ever closer to the phone's March 12 announcement date. Clearly, Ni Fei wants fans to know that beyond a hardcore gaming experience, the Red Magic 5G will also deliver a capable camera. The latest teaser video shows off a cool feature called Slow Door Video, which we are guessing is a rather crude translation. Also crudely translated, the text of the post itself reads.