Posts

Nov 14, 2019
Disney Plus Streaming Bandwidth

This will be a brief departure from the automation focused attention that I have been giving to this blog over the past year or so. This week in the United States was the launch of Disney+ streaming service. I have subscribed to it at this point and have found some interesting data based on SNMP polling my network.
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Oct 20, 2019
Ansible differences between ios command and cli command

In an earlier post I covered the differences between ios_config and cli_config. However I did not cover what the difference was between ios_command and cli_command. Most of the items covered there remain the same. So this will be a post that mostly gets straight to it and sees what the difference is.
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Aug 4, 2019
EVE-NG for Automation Practice and Testing

As I restarted looking at how I’m continuing my education on the Network Automation and certification realm I asked the question “How are you simulating your network environment?” At the same time there has been thought on the idea of leveraging cloud resources to gain experience there.
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Jul 13, 2019
Ansible IOS BGP Module

In this post I’m going to be taking a deeper dive into the new in Ansible 2.8 IOS BGP module. This may be one of the more complex modules to date and I’ll try to make it as simple as possible.
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Jun 23, 2019
Ansible ASA OG Module

Today we are taking a look at the newest module out for Cisco ASA Ansible module - asa_og. This one is particularly exciting for the configurations that are being managed heavily with Object Groups on firewalls. I’m particularly excited to review the asa_og module, time to dig in.
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Jun 20, 2019
Ansible ASA Command Module

Today will be a touch shorter post, but it is good to be back at it. In this post I will be taking a quick look around at the asa_command module, as we start down the path with looking at the ASA modules in Ansible. This is spurned on a little bit by Ansible 2.8 coming out with an Object Group specific module. I will be looking into that further in a future post.
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Mar 30, 2019
Ansible Saving Cisco Configs to NVRAM with Cisco Specific Modules

Today I’m going to take a look at a method to be able to save the configuration of a Cisco device to NVRAM (copy run start). I will be taking a look at multiple Cisco platforms to save changes done during an Ansible Playbook to NVRAM. There are options to save the configuration on every change within the modules such as ios_config or cli_config, however, this can slow down the execution of your playbook.
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Mar 17, 2019
Ansible Cisco IOS Interface Module

In this post I will be taking a deeper look at the ios_interface module. This module is used to configure individual interfaces on a Cisco IOS device. The documentation for the module is located here. In this module I did have to dig into the actual Python file, and that is located here.
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Mar 9, 2019
Ansible IOS VLAN

Back to it finally. Going to take a look at the Ansible module ios_vlan. The purpose of this is to provide a declarative module for managing VLANs on IOS devices. In this I will be using IOSv-L2 images. There are a few interesting quirks (as I will call it) within the parameters for the module.
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Feb 10, 2019
Ansible IOS Banner

Today’s post is going to be a short and sweet one (unless I get to writing two). I’m going to take a look at ios_banner module. This one is pretty much straight to the point, what it states, modifying the banner on an IOS device. There are multiple reasons to want to manipulate the banner on a Cisco device. We will leave those reasons to you and the organization that you are a part of for that. For now, we will take a real quick look at the module.
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Jan 27, 2019
Ansible Network Engine and NTC Templates

In this post we will talk about primarily three components that will work together to get structured data out of the command line of a Cisco device. The three pieces are:
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Jan 12, 2019
Ansible differences between ios config and cli config

This is a post that I’m going to review some of the differences between the ios_config module and the new cli_config module within Ansible networking. I became interested in the module after a recent discussion between the two. I have decided to take a look at the differences between the two.
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Jan 5, 2019
Ansible - Working with command output

You have decided to move forward with using/trying Ansible. You can now connect to a device and get a green success that you get a hello world like command such as show hostname or show inventory and get the GREEN success on Ansible. Now what. You may want to see the output of the command that you sent and got information back. This is your post on getting started.
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Dec 8, 2018
Discontiguous Masks

Discontiguous masks are something that is going to be somewhat historic within the network design toolbox. It is basically a methodology of looking at particular bits of a network/host definition. The big thing to recall is that as a packet crosses a network device it does so within a packet. The packet is nothing more than a stream of bits. Within the packet header there are bits that define the source network address and the destination network address. This is where discontiguous masks come into play. With a system that can leverage discontiguous masks, you can access information about any part of the network bits, not just starting reading and then stopping (or vice versa) when you look at a bit boundry masking only.
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Dec 8, 2018
Micro Segmentation vs Segmentation

In a recent podcast there was some discussion that it sounded like the term Micro Segmentation was being used where it was really traditional segmentation. So I thought I would put out a few thoughts on this front.
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Nov 24, 2018
Keeping Up on Tech

Life always gets busy. That is one thing that you always hear about. I am definitely in that boat as well that things are getting busy. With this in mind, I have never felt better about my ability to learn new things in the field. I do a few things that I feel are probably unique that I should share.
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Nov 22, 2018
Getting Started with the Blog

Why this post? Because I decided to change the style of how I was hosting my blog. Before I had decided to just host the blog on something that was easy to get to and update. I could have kept on blogging there, but I found making blog posts a little bit more difficult than what I wanted to. I also wanted to learn some of the new ways of doing things within networking technologies.
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Nov 11, 2018
Network CI/CD - work in progress (Links to other videos/pages)

At DevNet Create 2018 there is a video that was put together related to CI/CD in the NetDevOps world. This is something that is very exciting to see that there has been time put in to putting that together. The video can be seen here:
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Jun 7, 2018
Ansible Blocks

One of the more interesting features that I have just come across within the Ansible automation world is that of the block. I find this very helpful for both error handling, and also grouping tasks into logical separation.
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