Multistage MC-LAG in Data Center

1       Executive Summary

Compute virtualization and converged infrastructure has introduced tremendous changes in Data Center networks.  Traditional network design (Core, Aggregation and Access layers) coupled with Spanning tree protocol for management of layer 2 loops could not simply afford requirements of virtual machine mobility and elephant flows required for modern applications. All major network vendors have collaborated and brought new technologies to solve modern day Data Center challenges. 3 tier traditional networks are being replaced with flat switching fabric or scalable IP-Fabric.

2       Multi-Chassis LAG, A Solution

Multi-Chassis Link Aggregation Group is   another solution besides “Switching Fabric and IP Fabric” where access devices or servers can have active-active connectivity and traffic load sharing on links connected with 2 different network devices.  The basic idea is to prune effects of spanning tree protocol and offer active-active topology and redundancy for link and device safe fail-over.

In this solution paper; we will discuss how to design a Data Center network for small to medium organization with collapsed core architecture (Core and aggregation layers combined in single layer) with active-active multi-homing between server and access layer switches and active-active multi-homing between access and core layer network devices. Thus completely removing spanning Continue reading

8 great small business productivity and collaboration apps

Small business owners, whether working in a busy office, on the road or from home, can easily get distracted – and overwhelmed. From email (and text) messages bombarding their inboxes and smart phones, to having to stop what they are doing to attend meetings or put out fires, to the temptation to check social media, it can be hard – make that nearly impossible – to stay focused and complete tasks on time.And while many entrepreneurs claim to be excellent multitaskers, research has shown most are not.So what, if anything, can small business owners do to stay focused and on top of things? Following is a list of free or inexpensive tools (listed alphabetically) that can help.To read this article in full or to leave a comment, please click here

What it takes to become a chief information security officer (CISO)

download Career Tracker: What it takes to be a chief information security officer CSO Jeff Foltz did not set out to be an information security professional. He arrived at his current role as CISO at Fidelity National Financial by making the most of a series of opportunities and constantly building his skillset. His degree in psychology and philosophy would also prove more useful in his CISO job than one might think.To read this article in full or to leave a comment, please click here(Insider Story)

10000 percent more expensive SFPs

Cisco genuine SFP for 1000BASE-BX BiDi is 100 times more expensive than a compatible product. Choosing two random sites, Walmart sells Cisco genuine part for $829, Fibrestore sells same component for $7.29.

 

 

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Proving that Enterprise IT really doesn’t care about price, ROI, or value for money. Thats just management self-justifying their lack of talent and ability to measure risk.

Private Cloud will never compete with public cloud while price distortions like this are commonplace.

Link: 1000BASE-BX SFP 1310nm-TX/1490nm-RX 10km Transceiver | FS.COM – http://www.fs.com/products/29894.html

Link: Cisco 1000BASE-BX10 Downstream SFP Module – 1 x 1000Base-BX – Walmart.com – https://www.walmart.com/ip/Cisco-1000BASE-BX10-Downstream-SFP-Module/40322147

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New guidelines point to an augmented future

Lockheed Martin, Proctor & Gamble and Caterpillar have joined with 62 other organizations to create hardware and software guidelines for using augmented reality (AR) on the manufacturing floor.The guidelines are designed to guide AR technology vendors in developing future products for industrial businesses, both large and small. UI Labs and the Augmented Reality for Enterprise Alliance (AREA) announced the guidelines in a document released on Tuesday.To read this article in full or to leave a comment, please click here

Research: McAfee Labs Threats Report April 2017

Network professionals are the front line in cyber-defence by defining and operating the perimeter. While it is only a first layer of static defense, its well worth understanding the wider threat landscape that you are defending against. Many companies publish regular reports and this one is from McAfee.

McAfee Labs Threats Report – April 2017 – Direct Link

Landing page is https://secure.mcafee.com/us/security-awareness/articles/mcafee-labs-threats-report-mar-2017.aspx

Note: Intel has spun McAfee out to a private VC firm in the last few weeks so its possible that we will see a resurgence of the McAfee brand. I’m doubtful that McAfee can emerge but lets wait and see.

Some points I observed when reading this report:

  • McAfee wants to tell you about its cloud-based threat intelligence (which all security vendors have now, table stakes)
  • The pitch is pretty much identical to any other cloud threat intelligence.
  • The big six security companies have formed the Cyber Threat Alliance ( ….to prevent the startups from competing with them ? ) aka. Check Point, Cisco, Fortinet, Intel Security, Palo Alto Networks, Symantec
  • Big section on Mirai botnet and how it works.
  • Good summary of the different network packet attack modes in Mirai. Nicely laid out with Continue reading

It’s time to dump Moore’s Law to advance computing, researcher says

Dumping Moore's Law is perhaps the best thing that could happen to computers, as it'll hasten the move away from an aging computer architecture holding back hardware innovation.That's the view of prominent scientist R. Stanley Williams, a senior fellow in the Hewlett Packard Labs. Williams played a key role in the creation of the memristor by HP in 2008.Moore's Law is an observation made by Intel co-founder Gordon Moore in 1965 that has helped make devices smaller and faster. It predicts that the density of transistors would double every 18 to 24 months, while the cost of making chips goes down.To read this article in full or to leave a comment, please click here

Slack apps can now use drop-down menus

Apps that integrate with Slack can now include drop-down menus in the messages that they post to the service, as part of a push to improve the interactivity of third-party integrations.Slack's message menus let apps spawn clickable lists that users can choose from in order to take actions that developers have enabled. For example, using menus would allow users to pick a from a list of customers in a CRM system that integrates with Slack, assuming the developers have built their service to work with the new feature.Developing integrations with the broader universe of enterprise software is key to Slack’s longevity. Deeper integrations with a broad third-party ecosystem can help the service compete against Microsoft Teams and Google Hangouts Chat, according to Gartner Research Vice President Mike Gotta.To read this article in full or to leave a comment, please click here

DockerCon Agenda, Mobile App and DockerCon Slack

From Docker use cases at large corporations, to advanced technical talks and hands-­on lab tutorials, the DockerCon Agenda includes sessions adapted to every attendee profile, expertise level and domain of interest.

If you’re a registered attendee, login on the DockerCon portal using the information you set up during the registration process. You can use the keyword search bar or filter by topics, days, tracks, experience level or target audience.

DockerCon Agenda

Once logged in, you can “star” your interests and create your DockerCon schedule. Your saved interests and schedule will be available on the DockerCon mobile app you can download here.

Below are some useful tips and tricks for getting the most out of the DockerCon App.

Add More Sessions in the App

If you have not started already, we encourage you to review DockerCon sessions and build your agenda for next week. The process is very simple and will help you organize sessions and activities by the topics that you are interested in. Just click the “Schedule” widget and explore sessions by day or track. When you add  to “My Agenda”, you’ll be able to it find later in “My Event”.

You can use the DockerCon App to take notes and rate Continue reading

Sponsored Post: Pier 1, Aerospike, Clubhouse, Stream, Scalyr, VividCortex, MemSQL, InMemory.Net, Zohocorp

Who's Hiring? 

  • Pier 1 Imports is looking for an amazing Sr. Website Engineer to join our growing team!  Our customer continues to evolve the way she prefers to shop, speak to, and engage with us at Pier 1 Imports.  Driving us to innovate more ways to surprise and delight her expectations as a Premier Home and Decor retailer.  We are looking for a candidate to be another key member of a driven agile team. This person will inform and apply modern technical expertise to website site performance, development and design techniques for Pier.com. To apply please email [email protected]. More details are available here.

  • Etleap is looking for Senior Data Engineers to build the next-generation ETL solution. Data analytics teams need solid infrastructure and great ETL tools to be successful. It shouldn't take a CS degree to use big data effectively, and abstracting away the difficult parts is our mission. We use Java extensively, and distributed systems experience is a big plus! See full job description and apply here.

  • Advertise your job here! 

Fun and Informative Events

  • DBTA Roundtable Webinar: Leveraging Big Data with Hadoop, NoSQL and RDBMS. Thursday April 20, 2017 | 11:00 AM Pacific Time. Continue reading

Docker Docs Hackathon: April 17-21, 2017

During DockerCon 2017, Docker’s docs team will be running the first-ever Docker Docs hackathon, and you’re invited to participate and win prizes – whether you attend DockerCon or are just watching the proceedings online.

Essentially, it’s a bug-bash! We have a number of bugs filed against our docs up on GitHub for you to grab.

You can participate in one of two ways:

Or, both – if you want to have the best shot. After all, we won’t be in the hack room 24/7 that whole week.

All participants who show up in the 4th floor hack room at DockerCon will get this way-cool magnet just for stopping by.

DockerCon Docs Hackathon logo

Quick links

How it works

We have a number of bugs that have built up in our docs queue on GitHub, and we have labeled a Continue reading

DNS record will help prevent unauthorized SSL certificates

In a few months, publicly trusted certificate authorities will have to start honoring a special Domain Name System (DNS) record that allows domain owners to specify who is allowed to issue SSL certificates for their domains.The Certification Authority Authorization (CAA) DNS record became a standard in 2013 but didn't have much of a real-world impact because certificate authorities (CAs) were under no obligation to conform to them.The record allows a domain owner to list the CAs that are allowed to issue SSL/TLS certificates for that domain. The reason for this is to limit cases of unauthorized certificate issuance, which can be accidental or intentional, if a CA is compromised or has a rogue employee.To read this article in full or to leave a comment, please click here

DNS record will help prevent unauthorized SSL certificates

In a few months, publicly trusted certificate authorities will have to start honoring a special Domain Name System (DNS) record that allows domain owners to specify who is allowed to issue SSL certificates for their domains.The Certification Authority Authorization (CAA) DNS record became a standard in 2013 but didn't have much of a real-world impact because certificate authorities (CAs) were under no obligation to conform to them.The record allows a domain owner to list the CAs that are allowed to issue SSL/TLS certificates for that domain. The reason for this is to limit cases of unauthorized certificate issuance, which can be accidental or intentional, if a CA is compromised or has a rogue employee.To read this article in full or to leave a comment, please click here

The one thing you need to compete in cloud

New estimates out this week from Synergy Research suggest that in the cloud computing market the big and getting bigger, and that in order to compete in this market, scale is key.+MORE AT NETWORK WORLD: Battle of the clouds: Amazon Web Services, Microsoft Azure, Google Cloud Platform + Synergy Research Synergy Research data shows that 68% of the cloud market is served by hyperscale vendors, which means if you don't have scale, it's tough to compete. To read this article in full or to leave a comment, please click here

IDG Contributor Network: 7 steps to avoid getting hooked by phishing scams

High-profile hacking attacks might dominate the headlines, but one of the biggest risks to your security isn’t software vulnerabilities or malware—it’s phishing attacks. There were more than 1.2 million phishing attacks last year alone, up 65 percent over 2015, according to the Anti-Phishing Working Group (APWG).+ Also on Network World: 25% to 30% of users struggle with identifying phishing threats, study says + Phishing attacks usually come in the form of a fake email that appears to be from a legitimate source, such as your bank, employer or a website you use frequently. The idea is to get you to hand over the keys to your accounts by prompting you to type your login details and password into a fake website front. Victims click the link in an email and get taken to a website that looks just like the real thing, but in reality, it has been created to steal information.To read this article in full or to leave a comment, please click here

IDG Contributor Network: 7 steps to avoid getting hooked by phishing scams

High-profile hacking attacks might dominate the headlines, but one of the biggest risks to your security isn’t software vulnerabilities or malware—it’s phishing attacks. There were more than 1.2 million phishing attacks last year alone, up 65 percent over 2015, according to the Anti-Phishing Working Group (APWG).+ Also on Network World: 25% to 30% of users struggle with identifying phishing threats, study says + Phishing attacks usually come in the form of a fake email that appears to be from a legitimate source, such as your bank, employer or a website you use frequently. The idea is to get you to hand over the keys to your accounts by prompting you to type your login details and password into a fake website front. Victims click the link in an email and get taken to a website that looks just like the real thing, but in reality, it has been created to steal information.To read this article in full or to leave a comment, please click here

Worth Reading: Inside the invisible war for the open Internet

But the war for the commanding heights of the internet is far from over. There are many players on this global chess board. Governments. Telecom monopolies. Internet giants like Google and Facebook. NGOs. Startups. Hackers. And — most importantly — you. The war for the open internet is the defining issue of our time. It’s a scramble for control of the very fabric of human communication. And human communication is all that separates us from the utopia that thousands of generations of our ancestors slowly marched us toward — or the Orwellian, Huxleyan, Kafkaesque dystopia that a locked-down internet would make possible. —Free Code Camp

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