WLAN Architecture: Cloud-Managed Vs. On-Premises
Cloud-managed WLAN offers many benefits, but traditional controller-based WiFi still has its advantages.
Figure Out What the Customer Really Needs
One of the toughest challenges you can face as a networking engineer is trying to understand what the customer really needs (as opposed to what they think they’re telling you they want).
For example, the server team comes to you saying “we need 5 VLANs between these 3 data centers”. What do you do?
Read more ...Survey Paints A Bleak Picture of the Current State of Trust Online
The 2017 CIGI-Ipsos Global Survey on Internet Security and Trust paints a bleak picture of the current state of trust online. A majority of those surveyed said they are more concerned about their privacy than the year before, with an almost even split between those “much more concerned” and those only “somewhat more concerned”. When asked whether they agree with the statement “overall, I trust the Internet”, only 12% of respondents strongly agreed and a further 43% somewhat agreed. This means only a little more than half agreed that they trust the Internet, and some even expressed some reservation by choosing to respond “somewhat agree”.
Sally Shipman Wentworth
Dockercon 2017 – My experiences
Dockercon 2017 was the first Docker global conference that I attended. The conference was hosted in Austin, Texas. It was a memorable experience and I had lot of fun attending the conference. In this blog, I will share some of my experiences from Dockercon 2017. I have covered details on important announcements, keynote demos, Cool hacks, … Continue reading Dockercon 2017 – My experiences
Comparing Docker deployment options in public cloud
Few weeks back, I did a presentation in Container conference, Bangalore comparing different solutions available to deploy Docker in the public cloud. Slides are available here. I have also put the steps necessary along with short video for each of the options in the github page here. Abstract of the talk: Containers provide portability for … Continue reading Comparing Docker deployment options in public cloud
Observed Spike in DDoS Attacks Targeting Hong Kong
Introduction Each week ASERT produces a weekly threat intelligence bulletin for Arbor customers. In addition to providing insights into the week’s security news and reviewing ASERT’s threat research activities, we also summarize the weeks DDoS attack data as reported by over 330 global Internet Service […]Sharing state between host and upstream network: LACP part 3
So far in the previous articles, we’ve covered the initial objections to LACP a deep dive on the effect on traffic patterns in an MLAG environment without LACP/Static-LAG. In this article we’ll explore how LACP differs from all other available teaming techniques and then also show how it could’ve solved a problem in this particular deployment.
I originally set out to write this as a single article, but to explain the nuances it quickly spiraled beyond that. So I decided to split it up into a few parts.
• Part1: Design choices – Which NIC teaming mode to select
• Part2: How MLAG interacts with the host
• Part3: “Ships in the night” – Sharing state between host and upstream network
Ships in the night
An important element to consider is LACP is the only uplink protocol supported by VMware that directly exchanges any network state information between the host and its upstream switches. An ESXi host is also sortof a host, but also sortof a network switch (in so far as it does forward packets locally and makes path decisions for north/south traffic); here in lies the problem, we effectively have network devices forwarding packets between each other, but Continue reading
Self Driving Cars and Network Automation
Last year at Interop, there was a great mini-conference dedicated to the DevOps for Networking community. In that session, I kicked off the day with a general view of where the industry was with respect to the intersection of DevOps and networking with a focus on network automation.
One of the analogies I made was comparing network automation to self-driving cars posing the question, “Are they real?”…“Are they real for us (the consumer)?”
No, they are not, but I continued to make the analogy. Is complete network automation real today? While, the answer is yes, it’s not really a reality for most…yet.
So, what’s the connection between self-driving cars and network automation?
Start small and expand. Pick a problem, solve it, and integrate it.
Self-Driving Cars are Coming
While self-driving cars aren’t a reality for us to buy and purchase today, intelligent cars are– these are cars that have high-value services and features enhancing the way we drive, our safety, and much more generally, the way we in which we consume the streets and infrastructure around us.
These include automated features like self-parking, back-up cameras, automated beeping as you back-up, automatic-brakes, GPS, and computer systems that give Continue reading
Self Driving Cars and Network Automation
Last year at Interop, there was a great mini-conference dedicated to the DevOps for Networking community. In that session, I kicked off the day with a general view of where the industry was with respect to the intersection of DevOps and networking with a focus on network automation.
One of the analogies I made was comparing network automation to self-driving cars posing the question, “Are they real?”…“Are they real for us (the consumer)?”
No, they are not, but I continued to make the analogy. Is complete network automation real today? While, the answer is yes, it’s not really a reality for most…yet.
So, what’s the connection between self-driving cars and network automation?
Start small and expand. Pick a problem, solve it, and integrate it.
Self-Driving Cars are Coming
While self-driving cars aren’t a reality for us to buy and purchase today, intelligent cars are– these are cars that have high-value services and features enhancing the way we drive, our safety, and much more generally, the way we in which we consume the streets and infrastructure around us.
These include automated features like self-parking, back-up cameras, automated beeping as you back-up, automatic-brakes, GPS, and computer systems that give Continue reading