Last day of my DevNet Expert challenge, even if there are still 9 days left...

Next week I will start a new job and as result I need to stop my Cisco DevNet Expert journey. It was not a second of a wasted time and work as I learned so much about Network Automation & Programmability which I definitely can bring into all of the new challenges that lies ahead.

Thank you all for following my DevNet Expert challenge along and for your contributions. Thanks a lot to Cisco DevNet for all the passion and inspiration, special thanks to the DevNet Expert Training and the outstanding Masterclass bootcamps I attended, and of course thank you to the Cisco Learning & Certifications team for supporting me and my journey which is available on the Cisco Learning Network: https://learningnetwork.cisco.com/s/question/0D56e0000DhU0UzCQK/100-days-of-devnet-expert-challenge

I will take some days off and be back with sharing my new career challenge next week.

#100daysofCCDevE #CCDevE #CiscoCert #DevNet #CiscoChampion #NetEng

Day 90 of my 100 days of DevNet Expert challenge. Final day of the DevNet Expert Training Masterclass v1.1 Bootcamp.

Today we covered how to run and inspect Docker containers and networks along with the various options to let containers communicate with each other or being isolated.

The we moved on to more advanced container topics with Kubernetes, looked into Pods, Deployments, and Services and how you can autoscale and manage updates to your containers.

The last topics we tackled was Data Center APIs and what are the challenges with authentication and using the correct requests/filters to gather the date we want.

#100daysofCCDevE #CCDevE #CiscoCert #DevNet #CiscoChampion #NetEng

Day 89 of my 100 days of DevNet Expert challenge. Today was another full day of the DevNet Expert Training Masterclass v1.1 Bootcamp.

First we started with certificates and encryption. We created and signed certificates using different ways.

After that we continued with Hashicorp's Vault as secret management and learned how to securely manage and access credentials.

Then we covered some git operations like branch, checkout, merge, or rebase and looked into the format-patching, cherry-picking, and bug hunting with the bisect operation.

From git we jumped over to Gitlab CI/CI pipelines and created pipelines with multiple stages and how we can manage files as artifacts between jobs.

We closed the day with looking into ThousandEyes and AppDynamics which are new topics of version 1.1 of the exam which will be active from August 20, 2024. More information about this can be found here: https://learningnetwork.cisco.com/s/cisco-certification-roadmaps

#100daysofCCDevE #CCDevE #CiscoCert #DevNet #CiscoChampion #NetEng

Day 88 of my 100 days of DevNet Expert challenge. Today was day four of the https://www.linkedin.com/showcase/devnet-expert-training/ Masterclass v1.1 Bootcamp. Today we had great menu.

As starter we had some pyATS. We learned about the Python Automated Test System developed by Cisco and how to validate the intended state of the network using Testcases for example.

The main course was about Ansible with connection plug-ins such as network CLI and HTTPAPI. We learned how to use variables and create roles for different configuration use cases.

For dessert we had Terraform and its ACI provider. One of the challenges is the usage of complex structures of variables and to integrate them with loops.

#100daysofCCDevE #CCDevE #CiscoCert #DevNet #CiscoChampion #neteng

Day 87 of my 100 days of DevNet Expert challenge and day three of the DevNet Expert Training Masterclass v1.1 Bootcamp. Today was a full packed day with a lot of topics.

After a quick look into the lab exam design and structure we started to learn using RESTCONF with JSON to add, replace, or delete device configuration.

Then we moved on with CLI scraping using the Python libraries Netmiko and Scrapli which you can find both on the equipment and software list of the lab exam.

After the lunch break we dived into Jinja templates and how to use them to generate configuration out of JSON or YAML data.

We closed the day with a long session about Model-Driven Telemetry and how it overcomes the caveats of traditional network management tools like SNMP.

#100daysofCCDevE #CCDevE #CiscoCert #DevNet #CiscoChampion #NetEng

Day 86 of my 100 days of DevNet Expert challenge. Today was the second day of the https://www.linkedin.com/showcase/devnet-expert-training/ Masterclass v1.1 Bootcamp.

https://www.devnetexperttraining.com/masterclass#h.hx4xaapthe0o

We started the day with diving into YANG modeling, how to create custom YANG models, and how to generate XML payload using Cisco YANG Suite.

Then we moved on with NETCONF and how to use the Python library ncclient to configure devices with the XML payload we created based on the YANG models.

In case you missed it, I wrote two blog posts about it:

https://blog.kuhlcloud.de/automation/python/2024/02/22/netconf-xml.html
https://blog.kuhlcloud.de/automation/python/2024/03/27/netconf_validation.html

In the afternoon we continued with Cisco NSO and how we can create simple configuration templates, but also more advanced templates (or services) using Python-and-template skeletons and apply configuration to devices.

#100daysofCCDevE #CCDevE #CiscoCert #DevNet #CiscoChampion #NetEng

Day 85 of my 100 days of DevNet Expert challenge. Today the DevNet Expert Training Masterclass v1.1 Bootcamp started with day 1.

In the morning we learned how to build Python CLI applications using the given Python libraries and software available from the exam topics and from the equipment and software list.

In the afternoon we continued with building our own Python REST APIs. We covered some new content like GraphQL and OpenAPI. While exploring GraphQL APIs we also got the opportunity to learn something about Star Wars: Use the force!

Both parts were filled with hands-on lab tasks in well-prepared lab environments for all students. The rack rental is available for everyone and not limited to the Masterclass.

https://www.devnetexperttraining.com/rack-rental

#100daysofCCDevE #CCDevE #CiscoCert #DevNet #CiscoChampion #NetEng

Day 83 and 84 of my 100 days of DevNet Expert challenge. Yesterday and today I was reading through the Software Design, Development, and Deployment topics using the Cisco Certified DevNet Professional DEVCOR 350-901 Official Cert Guide available from Cisco Press.

https://www.ciscopress.com/store/cisco-certified-devnet-professional-devcor-350-901-9780137370443

#100daysofCCDevE #CCDevE #CiscoCert #DevNet #CiscoChampion #NetEng

The waiting is almost over! Only one night of sleep away from the DevNet Expert Training v1.1 Masterclass Instructor-Led Bootcamp.

Ahead of us is a full packed week of hard work, but with exciting and challenging tasks surrounded by high quality learning content.

https://www.devnetexperttraining.com/masterclass#h.hx4xaapthe0o

#CiscoCert #DevNet #CCDevE

Day 82 of my 100 days of DevNet Expert challenge with some delays in posting because of a private/business trip. Yesterday I started to cleanup all my GitHub repositories used for my studies. As you can imagine over the months of studies I dumped a lot files into my private study repository and sometimes it was not structured and ordered.

Starting the DevNet Expert Training Masterclass Instructor-Led Bootcamp next week with a clean repository will be a great feeling and good start.

How do you manage your study files and code examples?

#100daysofCCDevE #CCDevE #CiscoCert #DevNet #CiscoChampion #NetEng