Is Capacity Planning Dead In The Cloud Era?
Yes, the cloud is theoretically infinite. But consider whether you can afford it.
Yes, the cloud is theoretically infinite. But consider whether you can afford it.
Congratulations, Martin J Duggan, for being among one of the two people who passed the May 2016 CCDE Practical Exam. Your hard work has truly paid off not only because you attended my class, but, also because you put in your efforts to make this dream of yours a reality. You have made us proud. […]
The post Great Cisco CCDE Achievement appeared first on Cisco Network Design and Architecture | CCDE Bootcamp | orhanergun.net.
A Technology Market Builder (in his own words) from a major networking vendor decided to publish a thought leadership article (in my sarcastic words) describing how Cisco’s embrace of complexity harmed the whole networking industry.
Let’s see how black this kettle-blaming pot really is ;), and make sure to have fun reading the comments to the original article.
Read more ...One of the basic function of any data centre network is the ability to communicate with baremetal workloads. In this post we’ll see how Neutron L2 Gateway plugin can be used to configure a Cumulus VX switch for VXLAN-VLAN bridging.
Continue readingIn this post from 2011 I was explaining that my preferred online tool to draw network diagrams is LucidChart.com. Since then LucidChart.com developed really good and added constantly new features. Unfortunately with the new great additions some not so nice restrictions appeared for the free account.
Those restrictions (like 5 active documents) really make it difficult for me to work with this tool as I got used to a different style.
I’m not a cheap guy! If I would use this tool professionally there would be no problem to buy a subscription package, but at work Visio is saint (unfortunately) and the rest of the time, especially when I’m on my Mac, I just need a fast tool to draw brief network diagrams like for my blog or fast explanation to somebody online.
LucidChart.com is my recommendation if you rely on online tool to work with Visio documents. Last time when I checked their Visio import tool was doing a great job.
Back to this story, I was looking online for another tool when I came across Draw.io.
Draw.io doesn’t need an account creation, rather it just give you direct access to the tool.
Since Continue reading
Hi everyone.
I’ve not been posting lately because I have been studying very hard for the CCDE practical.
Passed the lab in Madrid? Isn’t this guy from the North? I was supposed to take this exam in Frankfurt on Tuesday the 17th of May. Wise from my trips to the CCIE lab in Brussels I took a flight that landed around noon on Monday. I have a routine I like to use the day before a big exam. I had just scouted the Pearson Professional Centre (PPC) location and got back to my room. At 14.05 I receive an e-mail from Pearson Vue saying they can’t deliver my exam. Can you imagine the panic I felt? I had been preparing for months of furious studying for this day. The CCDE practical is only delivered every three months so I would have to wait for three more months to take it if I could even get a seat then. I had prepared for this day and my plan was to try to pass it and if I didn’t, come back in three months and pass it then.
There was no time to waste. I found an open seat in Madrid Continue reading
Contrail is the "secret weapon."
Unikernel technologies, specifically the libraries, are applicable in many ways (e.g. the recent Docker for Mac and Windows products). However, unikernels themselves can enable new categories of products. One of the most prominent products is a network security tool called CyberChaff, based on open source HaLVM unikernels. Today Formaltech, a Galois subsidiary, revealed that Reed College is one of their happy CyberChaff users!
CyberChaff is designed to detect one of the early and critical steps in a security breach: the point when an attacker pivots from their initial entry point to the more juicy parts of the network. This step, the pivot, typically involves scanning the network for hosts that may be better positioned, appear to have more privileges, or are running critical services.
To impair this step of the attack, CyberChaff introduces hundreds (or thousands) of false, lightweight nodes on the network. These hosts are indistinguishable from real hosts when scanned by the attacker, and are each implemented as their own HaLVM unikernel. See the diagram below where green nodes are the real hosts and the orange nodes are HaLVM CyberChaff nodes. This means that an attacker is faced with a huge Continue reading
Investors eagerly grab future pieces of Dell.
Orchestration deserves a tool of its own.
Security startup Siemplify aims to pick up where SIEMs leave off with threat analysis software that provides additional context and visualization to security alerts to help analysts identify and respond to the most relevant events.
The post Startup Radar: Siemplify Takes Threat Analysis Beyond SIEM Correlation appeared first on Packet Pushers.
Security startup Siemplify aims to pick up where SIEMs leave off with threat analysis software that provides additional context and visualization to security alerts to help analysts identify and respond to the most relevant events.
The post Startup Radar: Siemplify Takes Threat Analysis Beyond SIEM Correlation appeared first on Packet Pushers.