Another week, another story from the SDN land, this time The Register reporting on AT&T plans. Even though there are almost no details in the story, the headline boasts that “SDN is eating vendors’ lunch”, prompting SDN hopefuls on LinkedIn groups to claim that “the promise of SDN is fast coming to fruition.”
Not so fast.
Read more ...I recently received a letter from the company that monitors my home alarm. It basically stated that to avoid a $3US surcharge that I must opt out of receiving bill in the mail (which is fine) and that I must set up automatic transactions. I also found this form attached.
This is not the first time that I have seen a payment option that includes a requirement for the CVV2 or CID value from my credit card. However with a little knowledge of PCI, I have to ask myself the following question, “What exactly are they going to do with this information?” According to PCI-DSS, this information must not be stored (even in an encrypted format) after authorization.
That raises the following questions for the merchant requiring this information–
In this Continue reading
When testing SDN functions in the Mininet network emulator and viewing captured OpenFlow messages in a packet analyzer such as Wireshark, it is difficult to identify which SDN switch is the source or destination of each captured message.
The only reliable way to identify which SDN switch sent or received an OpenFlow message is to look at the source or destination TCP port of the OpenFlow packets. This is because most OpenFlow messages exchanged between switches and the controller do not contain any other information that helps identify the sending or receiving switch. Neither Mininet nor the Open vSwitch database provides information that might be used to identify the TCP ports used by each switches to communicate with the OpenFlow controller in the network.
This post describes a procedure to map which TCP ports are used on each switch to communicate with the SDN controller in the Mininet network simulation. This procedure will enable researchers or students to study the interactions between SDN controller and switches in a more detailed and accurate way.
To map which TCP ports are used on each switch to communicate with the SDN controller in the Mininet network simulation, execute the steps Continue reading
First, I want to apologize for not doing my job. Over the past couple years I’ve let this site become slightly stagnant. I won’t attempt to make excuses, but I will say that I’m in a much better place now. Hopefully inspiration will continue to strike, and I will continue to put pen to paper… or finger to keyboard?
Over the past couple weeks I’ve put a fair amount of time and monetary resources into RouterJockey. I’ve fixed quite a few CSS bugs, without hopefully creating more. I purchased an SSL certificate and moved the site to HTTPS, which helps me more than it really does you… but in doing so, I’ve also enabled SPDY 3.1. SPDY should help load times, but Nginx was already doing a pretty good job. Oh, in order to get SPDY up to 3.1 I was forced to migrate away from the Ubuntu repo for Nginx.. but that’s not a huge deal.
I’ve also spent some time redesigning the menu bar, adding new links, removing some useless ones, and writing an all new disclaimer. Please be sure to read and understand everything posted on that page before attempting to read any of my Continue reading
Operators don't want TM Forum to get lost in NFV technicalities. They want the focus on making money.
What's the latest on intent-based networking--the hot new topic in SDN.
Intel boosts IoT for cars; former Cisco and Time Warner CTOs intersect; Khosla Ventures funds Gitlab.
Please join us in congratulating the following iPexpert students who have passed their CCIE lab!
Have you passed your CCIE lab exam and used any of iPexpert’s self-study products, or attended a CCIE Bootcamp? If so, we’d like to add you to our CCIE Wall of Fame!
From pumpkin spice on Dune to WiFi allergies to a giant robot fight and more, here's some interesting stories that crossed my browser this week.
The post Starbucks On Dune, WiFi Allergies: This Week On The Internet appeared first on Packet Pushers.
Brocade's Jon Hudson sat down with SDxCentral to discuss the current and future state of SDN, NFV, and DevOps.
Join the September 25th Cisco DemoFriday and learn how you can benefit from network programmability as you transition from legacy systems to open standard interfaces.
Original content from Roger's CCIE Blog Tracking the journey towards getting the ultimate Cisco Certification. The Routing & Switching Lab Exam
The F5 certification path is a series of exams administered by pearsonvue where you start of by passing 2 exams to become an F5 Certified Administrator and then depending on your specialist area you can add to that by becoming an F5 Certified Technology Specialist. The certification cost is $135 per exam which would be $170 […]
Post taken from CCIE Blog
Original post F5 Certification Path – How to become F5 Certified
Achieve the “big bang” transformation.
Is it the end for MPLS? Cato claims it's got a way to give MPLS-like performance to Internet links.