Networking Perspectives | Jerome Tissieres, CCDE 2026::37
I just passed the Cisco DevNet DCAUTO (300-635) exam (Yay!). This is my 3rd Cisco exam on network automation after NPDESI in 2018 (replaced now by the DevNet program), and DevNet CORE (DEVCOR) in 2020. This time, I documented everything I studied, so I could report it here and build a good Cisco DCAUTO exam study resource list. And by doing this, I hope to help anyone who wants to study for this certification.
Have you ever wanted to compare the operational state of a bunch of network devices between two specific times? Not only are the interfaces up or down, but the number and status of BGP peers, the number of prefixes received, the number of entries into a MAC-address table, etc?
This is something quite laborious to do with classical NMS or Do-It-Yourself scripts. And this is where pyATS can become a real asset. Here are my first steps with pyATS: Network Test & Automation Solution.
Like some other posts, I didn’t think I would write this one because it seemed obvious. But, after talking to a lot of engineers and customers, I realized that not everyone knows this trick. So here it is.
The question is this: how to simulate a real host in a physical network environment when you don’t have computer at your disposal? Well, let’s take an example.
As we approach the end of the year, we can finally say goodbye to 2020. Goodbye 2020… and never come back!
But, it is also time to look back at 2020 and try to see what the year 2021 promises us.
On 23 October 2020, I took and passed the Cisco Certified DevNet Professional Core exam (350-901 DEVCOR) on my first attempt. I explain here the resources I used to study and pass this exam.
One of the positive aspects of this difficult period, if I may say so, is the possibility of taking a Pearson Vue test online, called OnVue. Last Friday, October 23rd, I took a Cisco exam from home and I think it’s interesting to share with you the details of this experience. With OnVue – Get certified from your home!
Here is a copy of the information email I just received:
Cisco certification updates were announced on February 24th, 2019. The day after Cisco Live US 2019. Significant changes were made.
A summary of the major updates and their key points is provided below.
As the end of the year approaches, it is time to make a review of the past year and see what I would like to do, what I must do, and what I can improve in 2020. In brief, here’s my last year review and resolutions for 2020.
After giving a two-days training to a customer on multicast technology, I take the opportunity to have my lab and the configurations ready to share with you a suite of five different multicast configuration examples. And, how to make some tests and troubleshooting. These examples are based on the labs I used to practice the CCIE R&S practical exam. This lab is about Source-Specific Multicast (SSM).
After giving a two-day training to a customer on multicast technology, I took the opportunity to have my lab and the configurations ready to share with you a suite of five different multicast configuration examples. And, how to make some tests and troubleshooting. These examples are based on the labs I used to practice the CCIE R&S practical exam. This post is about Any-Source Multicast (ASM).
After giving a two-days training to a customer on multicast technology, I take the opportunity to have my lab and the configurations ready to share with you a suite of five different multicast configurations examples. And, how to make some tests and troubleshooting. These examples are based on the labs I used to practice the CCIE R&S practical exam. This lab is about Any-Source Multicast with anycast RP.