Eric Krapf, chair of Interop's Collaboration Track and GM of Enterprise Connect, discusses why you can’t put off focusing on collaborative technologies much longer, why multiple communication channels are essential for the modern workplace, and how new technologies can enable increased functionality.
Learn more about the Collaboration Track and register for Interop, May 2-6 in Las Vegas.
I’ve had an interesting few months doing WAN circuit turn-ups for a new Data Centre. I dealt with three major carriers, and each experience was worse than the next. I’m not sure why I held such high expectations but I was surprised by their hopeless inefficiency in delivering what should have been a standard product. In this post I’ll examine the problems I saw and their root causes.
In all three situations, 1Gbps Layer-2 ethernet circuit was ordered with a copper ethernet handoff from a rack-installed NID/NTU/whatever-you-call-it-yourself. Lets look at the five issues I hit whilst troubleshooting.
There was a lot of blaming the end-customer on this one. “Are you sure that CDP is enabled?”. There was a huge amount of frustration here. The carrier would send an email to confirm that ‘they had tested’, provide no actionable details of their troubleshooting, then close the ticket. This went on for days bouncing between the annoyingly named ‘deliver’ and ‘assure’ teams. The ‘deliver’ team felt they had delivered the circuit and the ‘assure’ team assured us that the circuit wasn’t live and they couldn’t help us.
The ‘deliver’ team felt they had delivered the circuit and the ‘assure’ Continue reading
I’ve had an interesting few months doing WAN circuit turn-ups for a new Data Centre. I dealt with three major carriers, and each experience was worse than the next. I’m not sure why I held such high expectations but I was … Continue reading
The post 5 ways to fail – WAN link acceptance appeared first on The Network Sherpa.
In this post I’ll demonstrate how to use the network-ci tools to automate the build, test and upgrade of a small 4-node network.
Continue readingYou always wonder how fast is your network, right? How long does it take the information travel over the network? I will share with you this special article, which you can use to find the speed of your network and define it with a numerical number. I will use ring, partial mesh and full-mesh physical topologies to […]
The post How fast is your network? appeared first on Cisco Network Design and Architecture | CCDE Bootcamp | orhanergun.net.
You always wonder how fast is your network, right? How long does it take the information travel over the network? I will share with you this special article, which you can use to find the speed of your network and define it with a numerical number. I will use ring, partial mesh and full-mesh physical topologies to […]
The post How fast is your network? appeared first on Cisco Network Design and Architecture | CCDE Bootcamp | orhanergun.net/newwp.
How fast is your network ? You always wonder how fast is your network right ? How long does it take the information travel over the network ? I will share a special article for you which you can use to find the speed of your network and define it with a numerical number. I will use […]
The post How fast is your network ? appeared first on Cisco Network Design and Architecture | CCDE Bootcamp | OrhanErgun.net.
A few days ago Inside-IT published an interview Christoph Jaggi did with me. In case you don’t understand German, here’s the English version of it.
There is a lot of talk about data center fabrics. What problem do they try to solve?
The data center fabrics are supposed to solve a simple-to-define problem: building a unified data center infrastructure that seamlessly supports data and storage communications. As always, the devil hides in the details.
Read more ...To make this blog a little easier to find, I’ve pointed rule11.us here as well. ntwrk.guru will continue to work, as well, but people seem to have a hard time remembering the url, so I added a second one.
The post New Address appeared first on 'net work.
Over the last month, we’ve been watching some of the largest distributed denial of service (DDoS) attacks ever seen unfold. As CloudFlare has grown we've brought on line systems capable of absorbing and accurately measuring attacks. Since we don't need to resort to crude techniques to block traffic we can measure and filter attacks with accuracy. Our systems sort bad packets from good, keep websites online and keep track of attack packet rates and bits per second.
The current spate of large attacks are all layer 3 (L3) DDoS. Layer 3 attacks consist of a large volume of packets hitting the target network, and the aim is usually to overwhelm the target network hardware or connectivity.
L3 attacks are dangerous because most of the time the only solution is to acquire large network capacity and buy beefy networking hardware, which is simply not an option for most independent website operators. Or, faced with huge packet rates, some providers simply turn off connections or entirely block IP addresses.
Historically, L3 attacks were the biggest headache for CloudFlare. Over the last two years, we’ve automated almost all of our L3 attack handling and these automatic systems protect Continue reading
So Cisco had some big announcements today. Cisco Digital Network Architecture (DNA). Ohhh, sounds fancy. Let me put on something a little more formal before I get too involved in the post. So what are all these awesome acronyms, you may be wondering? Well basically we start with DNA, which is the overall ecosystem that […]
The post Cisco Enterprise NFV, DNA, IWAN and a bunch of other acronyms appeared first on Packet Pushers.
So Cisco had some big announcements today. Cisco Digital Network Architecture (DNA). Ohhh, sounds fancy. Let me put on something a little more formal before I get too involved in the post. So what are all these awesome acronyms, you may be wondering? Well basically we start with DNA, which is the overall ecosystem that […]
The post Cisco Enterprise NFV, DNA, IWAN and a bunch of other acronyms appeared first on Packet Pushers.
IT departments are going crazy with all the disparate cloud apps.
This vendor-written tech primer has been edited by Network World to eliminate product promotion, but readers should note it will likely favor the submitter’s approach.
Hybrid cloud implementations are becoming standard for companies building next-generation cloud applications, but their adoption raises questions about how to run and manage database operations that support both environments.
While hybrid cloud allows IT to expand infrastructure resources only when required (i.e. ‘bursting’), improves disaster prevention, and makes it possible to offload some hardware and operational responsibility and associated costs to others, database issues to consider include:
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