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  • Network Experiments with VMware NSX-T and Cisco Modeling Labs

    calendar Apr 29, 2022 · 4 min read · VMWare Home Lab Datacenter Networking Routing & Switching Studies Programmability Network Automation  ·
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    Cisco Modeling Labs (CML) has turned out to be a great tool for deploying virtual network resources, but the "only Cisco VNFs" limitation is a bit much. Let's use this opportunity to really take advantage of the capabilities that NSX-T has for virtual network labs! Overview For the purpose of lab …


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  • Cisco Modeling Labs

    calendar Mar 26, 2022 · 3 min read · Linux Home Lab Cisco NX-OS NFV Datacenter Networking Routing & Switching Studies Programmability Design Patterns Network Automation  ·
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    Ever wonder what it would be like to have a platform dedicated to Continuous Improvement / Testing / Labbing? Cisco's put a lot of thought into good ways to do that, and Cisco Modeling Labs(CML) is the latest iteration of their solutions to provide this as a service to enterprises and casual users alike. CML is the …


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  • Cloud-Scale Networking: NSX Datacenter Hierarchical Tier-0s, blending telecom with cloud

    calendar Mar 12, 2022 · 7 min read · eBGP VMWare Datacenter Networking BGP NSX-T Programmability Design Patterns Network Automation  ·
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    VMware's NSX Datacenter product is designed for a bit more than single enterprise virtual networking and security. When reviewing platform maximums (NSX-T 3.2 ConfigMax), the listed maximum number of Tier-1 routers is 4,000 logical routers. Achieving that number takes a degree of intentional design, however. When …


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  • VMware NSX-T and Ansible

    calendar Mar 6, 2022 · 4 min read · VMWare BGP NSX-T Programmability Ansible Network Automation  ·
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    What is the point of all this software-defined infrastructure if you don't use it? In prior examples, it's a fairly straightforward path to SDN when deploying NSX Data Center, allowing a VI admin or network engineer to deploy virtual network resources via a GUI. This isn't the end of an effort, but the start of a …


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  • GitOps with NSX Advanced Load Balancer and Jenkins

    calendar Jan 16, 2022 · 6 min read · Load Balancing VMWare Avi GitOps Jenkins JSON Design Patterns Network Automation NSX-ALB  ·
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    GitOps GitOps, a term coined in 2017, describes the practice of performing infrastructure operations from a Git repository. In this practice, we easily develop the ability to re-deploy any broken infrastructure (like application managers), but that doesn't really help infrastructure engineers. From the perspective of …


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  • Leverage Idempotent, Declarative Profiles with the NSX-ALB (Avi) REST API

    calendar Jan 2, 2022 · 5 min read · Load Balancing TLS VMWare Network Security Python Avi Programmability Design Patterns Network Automation NSX-ALB  ·
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    Idempotence and Declarative Methods - not just buzzwords Idempotence Coined by Benjamin Peirce, this term indicates that a mathematical operation will produce a consistent result, even with repetition. Idempotence is much more complicated subject in mathematics and computer science. IT and DevOps use a simplified …


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  • Why Automate? Reliability Approaches with the VMware NSX-T API

    calendar Nov 24, 2021 · 11 min read · Home Lab Continuous Delivery JSON NSX-T Network Automation  ·
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    Why should an infrastructure engineer leverage REST APIs? I'm sure most IT workers have at least heard of REST APIs, or heard a sales pitch where a vendor insists that while a requested functionality doesn't exist, you could build it yourself by "using the API". Or, participate in discussions where people …


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  • VMworld 2021 is right around the corner! Here are my top 10 sessions!

    calendar Aug 25, 2021 · 8 min read · VMWare Network Security Avi NSX-T Network Automation  ·
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    VMworld 2021 is online this year I'll really miss some of the sessions and exploration we've had in past years in person, but I think VMware made the right call this year. We can expect to see a fundamental shift with online conventions - and this will need some unique strategy compared to previous years. The Basics I …


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  • Managing DNS Servers with Ansible and Jenkins (Unbound, BIND)

    calendar Aug 22, 2021 · 9 min read · DNS Jenkins Continuous Delivery Bind9 Programmability Ansible Design Patterns Network Automation Unbound  ·
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    DNS is a vital component of all computer networks. Also known as the "Internet Yellow Pages," this service is consumed by every household. DNS services are typically deployed in several patterns to support users and systems: DNS Forwarder: This deployment method is the most common. Everybody needs name …


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  • NSX Advanced Load Balancer - NSX-T Service Engine Creation Failures: CC_SE_CREATION_FAILURE and Transport Node Not Found to create service engine

    calendar Jul 5, 2021 · 3 min read · VMWare Datacenter Networking Avi NSX-T Design Patterns Network Automation NSX-ALB  ·
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    TL;DR If you see either of these errors, check grep 'ERROR' /opt/avi/log/cc_agent_go_{{ cloud }} for the potential cause. In my case, the / character was not correctly processed by Avi's Golang client (facing vCenter). The Problem When trying to configure NSX ALB + NSX-T on my home lab, I am presented nothing but the …


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ENGYAK.co

A blog about IT

Disclaimer

The opinions expressed on this site are my own personal opinions and do not represent my employer’s view in any way.

Recent Posts

  • Apollo 13's "Failure is not an option", and how non-engineers misinterpret it
  • Internet Load Balancing with pfSense
  • Handoff to Day-N Automation with vSphere Content Libraries and Netbox
  • Circumventing Coder's block and starting a new project
  • Why wait? Eventual Consistency and Reliability
  • Python Virtual Environment Setup in Jenkins
  • Mellanox nmlx5_core driver 4.23 issues on ESXi 8.0 Update 1
  • API Conversations and Why They're Important

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