The 'secular shift' of clouds and OpenStack looms.
A top-down approach to NFV and SDN is what's called for by some at SDN World Congress.
This is something I’ve had the pleasure of organizing at VMworld over the last couple of years, and I’d like to start doing it at the OpenStack Summits as well. So, next week in Tokyo, I’d like to offer Christians attending the Summit the opportunity to gather together for a brief time of prayer before the day’s activities get started.
If you’re interested in attending, here are the details.
What: A brief time of prayer
Where: The pool outside the Grand Prince Hotel New Takanawa (the pool outside the red building on this map of the Summit campus)
When: Tuesday, October 27 through Thursday, October 29, at 8:00 am each day (this should give you time to grab some breakfast before the keynotes and sessions start at 9:00 am)
Who: All courteous attendees are welcome, but please note that this will be a distinctly Christian-focused and Christ-centric activity. This is not to exclude anyone, but rather to focus on like-minded individuals. (I encourage believers of other faiths/religions to organize equivalent activities.)
Why: To spend a few minutes in prayer over the day, the Summit, and the other attendees gathered there
You don’t need to RSVP to let me know Continue reading
Instagram has always been generous in sharing their accumulated wisdom. Just take a look at the Related Articles section of this post to see how generous.
The tradition continues. Mike Krieger, Instagram co-founder, wrote a really good article on lessons learned from milestones achieved during Five Years of Building Instagram. Here's a summary of the lessons, but the article goes into much more of the connective tissue and is well worth reading.
The post Worth Reading: The Value of Strategic Network Design appeared first on 'net work.
New to networking? Or maybe just new to Packet Pushers? Want to know which shows will help you build a foundation? Here you go. These shows cover major networking concepts, take on emerging technologies, and provide context for what we might talk about in other shows.
The post Foundational Packet Pushers Podcasts: A List appeared first on Packet Pushers.
If I were a bit more snarky, I’d be tempted to say something like, “well, if you add a small hello protocol to each of the applets to monitor neighbor reachability, and a small protocol that can exchange local reachability information, and then perhaps a local algorithm to determine which path is the shortest, you can reinvent IS-IS.” But I’m not that snarky, of course…
I have come to believe that at least half of what we invent in the networking world is simply a product of not spending the time nor effort to study what’s already been invented, or the perception that what’s already been invented is “too complex,” and hence not stuff anyone wants to spend time learning nor understanding. A full three quarters of what remains is Continue reading
Join the Datanauts as they explore Apache Mesos, an open-source data center OS that abstracts compute, storage, and network to make it easier for applications to share resources.
The post Datanauts 013: Apache Mesos: A Data Center OS appeared first on Packet Pushers.
During my recent SDN workshops I encountered several networking engineers who use Nexus 1000V in their data center environment, and some of them claimed their organization decided to do so to ensure the separation of responsibilities between networking and virtualization teams.
There are many good reasons one would use Nexus 1000V, but the one above is definitely not one of them.
Read more ...It’s time for the next topic for the CCNA.
1.4 Describe the purpose and basic operation of the protocols in the OSI and TCP/IP models
There are tons of books written on the OSI and TCP/IP model so I won’t describe these models in depth here. What I will do is explain what you need to know at each level and explain how the real world works. We have two models, one from OSI and one from DOD.
In the real life everyone references the OSI model. I’ve never heard anyone reference the DOD model which doesn’t mean it doesn’t have its merits but everyone always uses the OSI model as a reference.
The OSI model has seven layers but people sometimes joke that layer 8 is financial and layer 9 is political.
Starting out with the physical layer, what you need to know is auto negotiation. Auto negotiation is good, hard coding speed and duplex will no doubt lead to ports that are hard coded on one side and auto on the other side to end up in half duplex. Gone are the days when auto negotiation wasn’t compatible and lead to misconfigured Continue reading