WiFi Networking: Radio Wave Basics
In this Cisco Press chapter excerpt, learn how radio waves work.
In this Cisco Press chapter excerpt, learn how radio waves work.
Anybody who’s been to any seminar, associated with any major networking systems manufacturer or bought any recent study material, will almost certainly have come across something new called segment routing &…
Source: Segment Routing on JUNOS – The basics
optic boom
A flash produced when electrons move faster than light, akin to the boom of supersonic jets. Breaking the “light barrier” sounds like sci-fi, but physicists say it can happen in graphene sheets. The discovery could spark development of optical circuits a million times faster than silicon chips.
Link: The 21 Best New Words of 2016 | WIRED https://www.wired.com/2016j/12/21-best-new-words-2016/
The post Dictionary: optic boom appeared first on EtherealMind.
In this post, I’ll briefly expand on the benefits of utilizing NSX as part of a disaster recovery (DR) solution. For additional information check out my prior multi-site and disaster recovery with NSX posts on the VMware Network Virtualization blog. Additionally, I recently presented at 2016 US VMworld and Europe VMworld on multi-site and disaster recovery solutions and recorded sessions can be viewed here: US VMworld, Europe VMworld.
Prior NSX Multi-site and Disaster Recovery Posts:
With disaster recovery, two challenges in general are:
Hi Everyone,
I wish you all a Happy New Year!
Currently im very busy studying for my 2nd attempt at the CCDE Practical exam.
I have it booked for the next slot, which is February 22nd in London.
Thankfully there are more and more material available for the CCDE than just a year ago. One of my primary sources are the study group which I have mentioned before, which Daniel (lostintransit.se) and I started way back.
Im also going through the INE scenarios as well as LiveLessons available through a Safari subscription. Those are really good and I highly recommend them.
One of the primary things im practicing at the moment is picking up business requirements from a given scenario. This is quite hard as im at heart an implementation-focused guy. But its good to learn something new and very useful.
If you are not following it just yet, I can highly recommend the “Unleashing CCDE” site on Cisco Learning Network (https://learningnetwork.cisco.com/blogs/unleashing-ccde). There are alot of good posts there on how to pick up these “soft” skills.
I will keep the blog updated with my study progress through February and we’ll see what happens February 22nd 
Take Care.
/Kim
One of my subscribers sent me this question after watching the second part of Network Automation Tools webinar (or maybe it was Elisa Jasinska's presentation in the Data Center course):
Elisa mentions that for a given piece of data, there should be “one source of truth”. It gets a bit muddled when you have an IPAM tool and Git source control simultaneously. It is not hard to imagine scenarios where these get out of sync especially if you consider multi-operator scenarios.
Confused? He provided a simple scenario:
Read more ...One aspect of my pending migration to Ubuntu Linux on my primary laptop has been the opportunity to explore “non-traditional” uses for Linux containers. In particular, the idea of using Docker (or systemd-nspawn or rkt) to serve as a sandbox (of sorts) for GUI applications really intrigues me. This isn’t a use case that many of the container mechanisms are aiming to solve, but it’s an interesting use case nevertheless (to me, anyway).
So, in no particular order, here are a few articles I found about using Linux containers as application containers/sandboxes (mostly focused around GUI applications):
A Docker-Like Container Management using systemd
Running containers without Docker
Containerizing Graphical Applications on Linux with systemd-nspawn
Debian Containers with systemd-nspawn
Using your own containers with systemd-nspawn and overlayfs
I was successful in using Docker to containerize Firefox (see my “dockerfiles” repository on GitHub)), and was also successful in using systemd-nspawn in the same way, including the use of overlayfs. My experiments have been quite helpful and informative; I have some ideas that may percolate into future blog posts.