Fog computing may be IoT’s computational model

Fog computing and fog networking could fill the latency and range gap in the internet of things (IoT.) For the last couple of years, researchers have been reporting on developments in fog’s role in completing IoT’s ubiquitous connectivity. It is similar to cloud computing architectures but it brings the cloud to the edge to meet the different demands of IoT.The underlying concept is the cloud for some real-time IoT services could be too slow because the quality of service (QoS) specifications for the IoT application exceeds the cloud’s QoS. The solution is to move the cloud out into the network.RELATED: IoT catches on in New England fishing town Low latency and QoS is important in IoT use cases like self-driving vehicles and controlling robots and other control applications that require minimum latency to synchronize, supervise, control and initiate machine actions. Range is important when connecting devices over long distances where hubs and gateways are not locally available.To read this article in full or to leave a comment, please click here

Switching Basics : Private VLANs

Today I am going to talk about “Private VLANs”. By using Private VLANs you can restrict the specific port from the network and it can only communicate with the uplink port with which it connects.

We have two kind of VLANs; One is Primary VLAN and other is Secondary VLANs. Primary VLANs is a type of VLAN which is used to forward frames downstream to all Secondary VLANs.while Secondary VLANs are further divided in to the 2 types and these types are :

Isolated VLANs : 
As name suggested, it is isolated from all the port except the ports in the Primary VLAN or you can say the isolated VLAN port can only talk with the uplink port and will be isolated from the other ports in the network.

Community VLANs:
As name suggest. if two ports are in the community they can talk to each other and talk to the uplink port as well but not able to talk to the other members of the VLANs. They are restricted to have a communication with the isolated VLANs in the network.

Fig 1.1- Private VLANs

Most common question what i am thinking now;

If two different Ports Continue reading

Uber CEO resigns, leaving company in search of a new strategy

Uber is now a driverless vehicle, after CEO Travis Kalanick stepped down Tuesday.Kalanick had already decided to take an indefinite leave of absence from the company, but now he's leaving for good. The move came at the request of the board of directors, The New York Times reported Wednesday.The company has already lost Kalanick's right-hand man, Senior Vice President of Business Emil Michael, following a number of gaffes including his suggestion that the company target a journalist who had been investigating the company.To read this article in full or to leave a comment, please click here

IPv4 route lookup on Linux

TL;DR: With its implementation of IPv4 routing tables using LPC-tries, Linux offers good lookup performance (50 ns for a full view) and low memory usage (64 MiB for a full view).

During the lifetime of an IPv4 datagram inside the Linux kernel, one important step is the route lookup for the destination address through the fib_lookup() function. From essential information about the datagram (source and destination IP addresses, interfaces, firewall mark, …), this function should quickly provide a decision. Some possible options are:

  • local delivery (RTN_LOCAL),
  • forwarding to a supplied next hop (RTN_UNICAST),
  • silent discard (RTN_BLACKHOLE).

Since 2.6.39, Linux stores routes into a compressed prefix tree (commit 3630b7c050d9). In the past, a route cache was maintained but it has been removed1 in Linux 3.6.

Route lookup in a trie

Looking up a route in a routing table is to find the most specific prefix matching the requested destination. Let’s assume the following routing table:

 Continue reading

Lenovo’s ThinkSystem product barrage targets data centers

Lenovo is taking on Dell EMC and HPE with its biggest portfolio refresh since it acquired IBM's x86 server business three years ago, offering a lineup of servers, switches, SAN arrays and converged systems intended to show that it's a serious contender in the data center and software-defined infrastructure market.The product launch, staged in New York Tuesday, was the first major event for Lenovo's Data Center Group, in business since April. Lenovo wants to be a global player not only for the enterprise data center but also in hyperscale computing.Lenovo is tied for third in server market share with Cisco and IBM, well behind HPE and Dell EMC, according to IDC, and has a particularly steep uphill battle ahead in North America.To read this article in full or to leave a comment, please click here

Lenovo’s ThinkSystem product barrage targets data centers

Lenovo is taking on Dell EMC and HPE with its biggest portfolio refresh since it acquired IBM's x86 server business three years ago, offering a lineup of servers, switches, SAN arrays and converged systems intended to show that it's a serious contender in the data center and software-defined infrastructure market.The product launch, staged in New York Tuesday, was the first major event for Lenovo's Data Center Group, in business since April. Lenovo wants to be a global player not only for the enterprise data center but also in hyperscale computing.Lenovo is tied for third in server market share with Cisco and IBM, well behind HPE and Dell EMC, according to IDC, and has a particularly steep uphill battle ahead in North America.To read this article in full or to leave a comment, please click here

Lenovo ThinkSystem product barrage targets data centers

Lenovo is taking on Dell EMC and HPE with its biggest portfolio refresh since it acquired IBM's x86 server business three years ago, offering a lineup of servers, switches, SAN arrays and converged systems intended to show that it's a serious contender in the data center and software-defined infrastructure market.The product launch, staged in New York yesterday, was the first major event for Lenovo's Data Center Group, in business since April. Lenovo wants to be a global player not only for the enterprise data center but also in hyperscale computing.Lenovo is tied for third in server market share with Cisco and IBM, well behind HPE and Dell EMC, according to IDC, and has a particularly steep uphill battle ahead in North America.To read this article in full or to leave a comment, please click here

Lenovo ThinkSystem product barrage targets data centers

Lenovo is taking on Dell EMC and HPE with its biggest portfolio refresh since it acquired IBM's x86 server business three years ago, offering a lineup of servers, switches, SAN arrays and converged systems intended to show that it's a serious contender in the data center and software-defined infrastructure market.The product launch, staged in New York yesterday, was the first major event for Lenovo's Data Center Group, in business since April. Lenovo wants to be a global player not only for the enterprise data center but also in hyperscale computing.Lenovo is tied for third in server market share with Cisco and IBM, well behind HPE and Dell EMC, according to IDC, and has a particularly steep uphill battle ahead in North America.To read this article in full or to leave a comment, please click here

BrandPost: 2017 Signals A Change For The Value Proposition Of SD-WAN

SD-WANs have garnered a tremendous amount of interest from companies both large and small as they can significantly lower the costs and complexity of running a WAN. As businesses migrate applications to the cloud, they are increasingly embracing the cost advantages of broadband connectivity to connect users to applications. This is being driven not only by the high cost of private WAN circuits, but because backhauling applications’ traffic to the data center is negatively impacting application performance, resulting in frustrated users and sub-optimal productivity. The combination of high costs and poor performance seem like a perfect recipe for market disruption.To read this article in full or to leave a comment, please click here

2017 Online Trust Audit Released – What Did We Learn?

Today the OTA released the 9th annual Online Trust Audit and Honor Roll. This year’s Audit is our most comprehensive ever, assessing more than 1000 consumer-facing sites for their adoption of best practices in consumer/brand protection, site security and responsible privacy practices. Each year the audit raises the bar, using criteria that reflect the latest regulatory environment, attack vectors and commonly accepted practices providing users with notice and control regarding their data. The goal is to provide practical advice to organizations to help them move beyond compliance to stewardship, thus protecting their customers and their brand while improving trust in the Internet itself.

Jeff Wilbur

Competition Returns To X86 Servers In Epyc Fashion

AMD has been absent from the X86 server market for so long that many of us have gotten into the habit of only speaking about the Xeon server space and how it relates to the relatively modest (in terms of market share, not in terms of architecture and capability) competition that Intel has faced in the past eight years.

Those days are over now that AMD has successfully got its first X86 server chip out the door with the launch of the “Naples” chip, the first in a line of processors that will carry the Epyc brand and, if all …

Competition Returns To X86 Servers In Epyc Fashion was written by Timothy Prickett Morgan at The Next Platform.

EU wants to ease commercial drone use with future flight rules

The European Commission wants to make it easier for lightweight drones to fly autonomously in European airspace -- with logistics, inspection services and agricultural businesses set to benefit.Last Friday, the Commission unveiled a plan to improve the safety of drones flying at low altitude.It wants to introduce a consistent set of rules across the EU for flying drones in "U-space," its name for regulated airspace under 150 meters in altitude.Simpler regulations will be welcomed by multinational businesses such as gas giant Engie, which is developing drones for tasks such as pipeline or building inspection or for cleaning the insulators on high-voltage overhead power lines.To read this article in full or to leave a comment, please click here

EU wants to ease commercial drone use with future flight rules

The European Commission wants to make it easier for lightweight drones to fly autonomously in European airspace -- with logistics, inspection services and agricultural businesses set to benefit.Last Friday, the Commission unveiled a plan to improve the safety of drones flying at low altitude.It wants to introduce a consistent set of rules across the EU for flying drones in "U-space," its name for regulated airspace under 150 meters in altitude.Simpler regulations will be welcomed by multinational businesses such as gas giant Engie, which is developing drones for tasks such as pipeline or building inspection or for cleaning the insulators on high-voltage overhead power lines.To read this article in full or to leave a comment, please click here

AMD launches its Epyc server chip to take on Intel in the data center

It's not just the folks at AMD who hope that that the company's Epyc server processor, officially launched Tuesday, will break Intel's stranglehold on the data-center chip market.Enterprise users, web hosting companies and hyperscale cloud providers all want competition and choice in server chips to curb costs and fuel innovation."OEMs have been looking for an alternative to Intel for a long time, and with Intel having 98 percent market share I can say that there's absolutely a need, from the OEM point of view and the channel point of view," said Patrick Moorhead, principal at Moor Insights & Strategy.Judging from specs, performance benchmarks and memory features as well as the supporting voices from software and hardware makers in the data center ecosystem, Epyc has the best shot of any chip to hit the market in years at putting a crack in Intel's dominance.To read this article in full or to leave a comment, please click here

AMD launches its Epyc server chip to take on Intel in the data center

It's not just the folks at AMD who hope that that the company's Epyc server processor, officially launched Tuesday, will break Intel's stranglehold on the data-center chip market.Enterprise users, web hosting companies and hyperscale cloud providers all want competition and choice in server chips to curb costs and fuel innovation."OEMs have been looking for an alternative to Intel for a long time, and with Intel having 98 percent market share I can say that there's absolutely a need, from the OEM point of view and the channel point of view," said Patrick Moorhead, principal at Moor Insights & Strategy.Judging from specs, performance benchmarks and memory features as well as the supporting voices from software and hardware makers in the data center ecosystem, Epyc has the best shot of any chip to hit the market in years at putting a crack in Intel's dominance.To read this article in full or to leave a comment, please click here

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