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Category Archives for "Networking"

Arista EOS telemetry

Arista EOS switches support industry standard sFlow telemetry, enabling hardware instrumentation supported by merchant silicon to export hardware interface counters and flow data. The latest release of the open source Host sFlow agent has been ported to EOS, augmenting the telemetry with standard host CPU, memory, and disk IO metrics.

Linux as a Switch Operating System: Five Lessons Learned identifies benefits of using Linux as the basis for EOS. In this context, the Linux operating system made it easy to port the Host sFlow agent, use standard Linux package management (RPM Package Manager), and gather metrics using standard Linux APIs. A new eAPI module automatically synchronizes the Host sFlow daemon with the EOS sFlow configuration.

The following sflowtool output shows the additional metrics contributed by a Host sFlow agent installed on an Arista switch:
startDatagram =================================
datagramSourceIP 172.17.0.1
datagramSize 704
unixSecondsUTC 1490843418
datagramVersion 5
agentSubId 100000
agent 10.0.0.90
packetSequenceNo 714
sysUpTime 0
samplesInPacket 1
startSample ----------------------
sampleType_tag 0:2
sampleType COUNTERSSAMPLE
sampleSequenceNo 714
sourceId 2:1
counterBlock_tag 0:2001
counterBlock_tag 0:2010
udpInDatagrams 1459
udpNoPorts 16
udpInErrors 0
udpOutDatagrams 4765
udpRcvbufErrors 0
udpSndbufErrors 0
udpInCsumErrors 0
counterBlock_tag 0:2009
tcpRtoAlgorithm 1
tcpRtoMin 200
tcpRtoMax 120000
tcpMaxConn 4294967295
tcpActiveOpens 102
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PodPi makes STEM education exciting!

When I was a kid, the way science was taught was, on the whole, pretty boring … well, except for chemistry where the class chemistry wiz would “accidentally” blow things up or make horrible smells every now and then. Science was a class to get through with gritted teeth and even today, getting kids interested in STEM education (Science, Engineering, Technology, and Mathematics) is still difficult. The problem is how to make topics that appear dry and complicated into something kids can get excited about. Five years ago, Stéphane Côme, the founder, chairman, and chief technology officer of LCS Technologies, a consulting firm specializing in Oracle database wrangling, decided that he wanted to give back to the community and that his focus should be on inspiring children to get involved with computers and software. Côme told me he started off by establishing a Meetup group to teach children and their parents through hands-on technology projects:To read this article in full or to leave a comment, please click here

Trump extends Obama executive order on cyberattacks

U.S. President Donald Trump is extending by one year special powers introduced by former President Barack Obama that allow the government to issue sanctions against people and organizations engaged in significant cyberattacks and cybercrime against the U.S.Executive Order 13694 was introduced on April 1, 2015, and was due to expire on Saturday, but the president sent a letter to Congress on Wednesday evening informing it of his plans to keep it active."Significant malicious cyber-enabled activities originating from, or directed by persons located, in whole or in substantial part, outside the United States, continue to pose an unusual and extraordinary threat to the national security, foreign policy, and economy of the United States," Trump wrote in the letter. "Therefore, I have determined that it is necessary to continue the national emergency declared in Executive Order 13694 with respect to significant malicious cyber-enabled activities."To read this article in full or to leave a comment, please click here

Trump extends Obama executive order on cyberattacks

U.S. President Donald Trump is extending by one year special powers introduced by former President Barack Obama that allow the government to issue sanctions against people and organizations engaged in significant cyberattacks and cybercrime against the U.S.Executive Order 13694 was introduced on April 1, 2015, and was due to expire on Saturday, but the president sent a letter to Congress on Wednesday evening informing it of his plans to keep it active."Significant malicious cyber-enabled activities originating from, or directed by persons located, in whole or in substantial part, outside the United States, continue to pose an unusual and extraordinary threat to the national security, foreign policy, and economy of the United States," Trump wrote in the letter. "Therefore, I have determined that it is necessary to continue the national emergency declared in Executive Order 13694 with respect to significant malicious cyber-enabled activities."To read this article in full or to leave a comment, please click here

Extreme swallows Brocade’s data center networking business for $55M

Extreme Networks continued to amass a nice nest of data center technology saying today it would buy Brocade's data center networking business will be sold to Extreme for $55 million in cash from its current owner Broadcom.Broadcom bought Brocade last year for about $5.5 billion but has since sold off Brocade’s Ruckus Wireless Wi-Fi business for $800 million to Arris International and now the data center networking business to Extreme.+More on Network World: When the Internet Engineering Task Force meets this week in Chicago it will have a new chair – Cisco Fellow Alissa Cooper +To read this article in full or to leave a comment, please click here

Extreme swallows Brocade’s data center networking business for $55M

Extreme Networks continued to amass a nice nest of data center technology saying today it would buy Brocade's data center networking business for $55 million in cash from its current owner Broadcom.Broadcom bought Brocade last year for about $5.5 billion but has since sold off Brocade’s Ruckus Wireless Wi-Fi business for $800 million to Arris International and now the data center networking business to Extreme.+More on Network World: When the Internet Engineering Task Force meets this week in Chicago it will have a new chair – Cisco Fellow Alissa Cooper +To read this article in full or to leave a comment, please click here

Extreme swallows Brocade’s data center networking business for $55M

Extreme Networks continued to amass a nice nest of data center technology saying today it would buy Brocade's data center networking business for $55 million in cash from its current owner Broadcom.Broadcom bought Brocade last year for about $5.5 billion but has since sold off Brocade’s Ruckus Wireless Wi-Fi business for $800 million to Arris International and now the data center networking business to Extreme.+More on Network World: When the Internet Engineering Task Force meets this week in Chicago it will have a new chair – Cisco Fellow Alissa Cooper +To read this article in full or to leave a comment, please click here

G Suite vs. Office 365 cloud collaboration battle heats up

CIOs and IT managers are increasingly adopting Microsoft’s Office 365 and Google’s G Suite for collaboration, productivity and messaging. These cloud-based productivity suites are expanding, gaining new feature sets and new apps for enterprise users. Earlier this month, both Google and Microsoft introduced chat-based collaboration apps to reposition for competition in this fast evolving and hotly contested space.Microsoft's Teams, which has been in beta since November, was released for general availability for Office 365 customers. And Google introduced a rebuilt Hangouts, which has been split into two apps — Hangouts Chat for chat-based communications and Hangouts Meet for audio and video conferencing.To read this article in full or to leave a comment, please click here

How to fend off cyberattacks and data breaches

According to research conducted by Symantec, the number of cyberattacks against small businesses (companies with fewer than 250 employees) has been steadily growing over the last six years, with hackers specifically targeting employees (phishing). And while distributed denial of service, or DDoS, attacks are still a leading form of cyber warfare, ransomware and malware attacks, targeting users of smartphones and internet of things (IoT) devices, as well as PCs and systems running on Macs and Linux, are also a big threat to small businesses.To read this article in full or to leave a comment, please click here

How to fend off cyberattacks and data breaches

According to research conducted by Symantec, the number of cyberattacks against small businesses (companies with fewer than 250 employees) has been steadily growing over the last six years, with hackers specifically targeting employees (phishing). And while distributed denial of service, or DDoS, attacks are still a leading form of cyber warfare, ransomware and malware attacks, targeting users of smartphones and internet of things (IoT) devices, as well as PCs and systems running on Macs and Linux, are also a big threat to small businesses.To read this article in full or to leave a comment, please click here

Trump again uses iPhone to tweet, backtracking from 2016 pledge

President Donald Trump now uses an iPhone to broadcast his famous early-morning tweets, according to the White House.Trump's turn to the iPhone was contrary to a pledge he made more than a year ago, when he blasted Apple for refusing to help federal authorities crack the passcode on a device belonging to one of the San Bernardino shooters."@POTUS @realDonaldTrump has been using his new iPhone for the past couple of weeks here on Twitter," tweeted Dan Scavino Jr. today. Scavino is director of social media for the Trump administration, as well as a senior advisor to the president.To read this article in full or to leave a comment, please click here

Congress to US citizens: Want online privacy? Pay up!

Tuesday’s congressional vote to repeal U.S. restrictions on broadband providers doesn’t mean that online privacy is dead. Consumers will just have to pay for it.The coming repeal, which President Trump is expected to sign into law, paves a clearer path for broadband providers to sell customers’ internet browsing history and other online data, without their consent.Privacy advocates are worried. Imagine corporate giants snooping on your internet activities, and then bombarding your PC, phone and TV with targeted ads.However, the privacy rule rollback might have an opposite effect too. Expect broadband providers and other internet services to emerge offering online privacy protections -- but at a price.To read this article in full or to leave a comment, please click here

Congress to US citizens: Want online privacy? Pay up!

Tuesday’s congressional vote to repeal U.S. restrictions on broadband providers doesn’t mean that online privacy is dead. Consumers will just have to pay for it.The coming repeal, which President Trump is expected to sign into law, paves a clearer path for broadband providers to sell customers’ internet browsing history and other online data, without their consent.Privacy advocates are worried. Imagine corporate giants snooping on your internet activities, and then bombarding your PC, phone and TV with targeted ads.However, the privacy rule rollback might have an opposite effect too. Expect broadband providers and other internet services to emerge offering online privacy protections -- but at a price.To read this article in full or to leave a comment, please click here

5 things Samsung’s Bixby artificial intelligence service will do

Could artificial intelligence make devices easier to use? According to Samsung, it sure can, and that's what it the company out to prove with its Bixby AI service.Bixby is being loaded on the Galaxy S8 and S8+ smartphones, which were announced on Tuesday. Bixby is an agent that can help the smartphones talk, recommend, and remind, said Mok Oh, vice president of service strategy at Samsung.The AI service is being positioned as a more intuitive way to use and interact with smartphones. For example, Bixby can help smartphones execute tasks with a voice command. It also brings cool features like image recognition and language translation on board the S8 smartphones.To read this article in full or to leave a comment, please click here

Brocade Gen6 Fibre Channel prepares businesses for an all-flash world

Last year, Brocade introduced its 32 Gig Fibre Channel portfolio. Gen6, as Brocade calls it, is ideally suited to meet the demands of a digital world that is seeing an explosion of traffic from data center modernization, the Internet of Things (IoT) and cloud computing.Earlier this week the company announced its new G610 switch. The product is designed to be an entry-level switch that enables businesses to start at eight ports and then expand to 24 ports through a software license. The ports can be configured to run at 16 Gbps today and then upgraded to 32 Gbps when the data demands require it. To read this article in full or to leave a comment, please click here

Brocade Gen6 Fibre Channel prepares businesses for an all-flash world

Last year, Brocade introduced its 32 Gig Fibre Channel portfolio. Gen6, as Brocade calls it, is ideally suited to meet the demands of a digital world that is seeing an explosion of traffic from data center modernization, the Internet of Things (IoT) and cloud computing.Earlier this week the company announced its new G610 switch. The product is designed to be an entry-level switch that enables businesses to start at eight ports and then expand to 24 ports through a software license. The ports can be configured to run at 16 Gbps today and then upgraded to 32 Gbps when the data demands require it. To read this article in full or to leave a comment, please click here

Broadband Network Architecture – Access Network Models

There are many broadband services Service Providers offer to their customers today. As a network engineer you need to know the most common services and their advantages, disadvantages, design characteristics and so on.   In this post, I will introduce these services and if I can see interest from the readers, I will explain the […]

The post Broadband Network Architecture – Access Network Models appeared first on Cisco Network Design and Architecture | CCDE Bootcamp | orhanergun.net.

Google Calendar finally comes to the iPad

Google’s Calendar app is making a long-awaited move to a new device: Apple’s iPad. You read that right: Until Wednesday, the tech titan hadn’t optimized its marquee calendar application to run on Apple’s tablets.The app provides users with a view of the calendars that they have and that are shared with them through Google’s service. In addition, they get a handful of features Apple’s native calendar app doesn’t have, like the ability to more easily find time and space for a meeting with other people inside their organizations.Making iPad users wait for a native Calendar app is hardly a surprise coming from Google, considering that it’s the company behind Android, and frequently ships new features first to apps for devices running its mobile operating system.To read this article in full or to leave a comment, please click here

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