Here’s one of their success stories (name changed for obvious reasons):
- Automation should be a strategy. You need management buy-in;
- You should have at least one person with strong software development experience in your automation team.
However, life is not always rosy, so @stupidengineer asked:
My “this is why you need automation” blog post triggered numerous comments and tweets. I loved this one:
What if the mistake was embedded into the automation process/tool (designed by humans) in the first place? Now you have a video series titled "Automation Gone Wild".
I guess this tweet is a priceless answer to that question:
One of my subscribers considered attending the Virtual Firewalls workshop on September 1st and asked:
Would it make sense to attend the workshop? How is it different from the Virtual Firewalls webinar? Will it be recorded?
The last answer is easy: No. Now for the other two.
I spent the last week creating numerous scenarios using Ansible networking modules for my upcoming Network Automation workshop. The scenarios use Cisco IOS and Nexus OS modules as I used VIRL for network simulation, but you could easily adapt them to other networking devices.
I had a sweet problem with ipSpace.net webinars for quite a while: there are way more ideas than available time. However, a few days ago I stumbled upon a great tip on Trello blog and immediately decided to use it.
Result: list of future ipSpace.net webinars as a Trello board.
The featured webinar in March 2016 is the Leaf-and-Spine Designs update to the Leaf-and-Spine Fabrics webinar, and in the featured videos (the ones marked with a star) you'll find in-depth explanation of BGP features available in Cumulus Linux, including a cool trick that allows you to run EBGP sessions across unnumbered interfaces.
I somewhat expected that the leaf-and-spine fabrics designs webinar won’t be as short as I initially planned it to be, but when I started developing the scenarios and talking with guest speakers the whole thing exploded into a four-session saga (or maybe we’ll end up with the fifth session of a four-part trilogy).
Here’s a short update on what’s planned and where we are at the moment:
My friend Christoph Jaggi, the author of fantastic Metro Ethernet and Carrier Ethernet Encryptors documents, sent me this question when we were discussing the Data Center Fabrics Overview workshop I’ll run in Zurich in a few weeks:
When you are talking about large-scale VLAN-based fabrics I assume that you are pointing towards highly populated VLANs, such as VLANs containing 1000+ Ethernet addresses. Could you provide a tipping point between reasonably-sized VLANs and large-scale VLANs?
It's not the number of hosts in the VLAN but the span of a bridging domain (VLAN or otherwise).
One of the engineers watching the vSphere 6 Networking Deep Dive found it particularly useful:
There were pearls of knowledge in there which expanded my understanding of ESX and gave me more than a few "aha!" moments […] The course is worth the money and time for sections "uplink redundancy & load balancing" and "VLAN based virtual networks" alone.
I spent most of last year developing SDN-related content, resulting in pretty successful 2-day workshop and 20+ hours of online content. However, I fully agree with Matt Oswalt that network automation matters even more than lofty centralized ideas, so it was time to focus on that area.
Five years after the SDN hype exploded, it remains as meaningless as Cloud, and it seems that all we’re left with is a plethora of vendors engaged in SDN-washing their products.
Even when a group of highly intelligent engineers considering these topics on a daily basis gets together they don’t get very far apart from a great question: “what business problem is it supposed to solve?” (or maybe they got distracted by irrelevant hot-air opinions).
Is it still worth trying to find a useful definition of SDN? It seems it’s easier to list what SDN is not like I’ll be doing in the free Introduction to SDN webinar on February 10th. Let’s see:
Online webinars are great, but many engineers still prefer live workshops – they’re an excellent opportunity for unrestricted 2-way communication and exchange of ideas – so I decided to turn a few of my best webinars (or webinar tracks) into workshops, and Gabi Gerber, the wonderful organizer of Data Center days in Switzerland took over the logistics, resulting in the first-ever Data Center Fabrics workshop in Zurich in late March.
Last autumn’s SDN roadtrip left me totally exhausted – at the moment it’s so bad that I can’t push myself to work on non-urgent things – but there are some conferences are that so awesome that I wouldn’t skip them no matter what.
Troopers 16 (March 14th – 18th in Heidelberg, Germany) is a must-go-to security conference. Past events were fantastic, and when Enno Rey asked me what I’d like to talk about this year it wasn’t hard to come up with three interesting topics:
As you know I always promise my loyal subscribers at least 6 new webinars per year. Well, 2015 was a bit more fruitful. Let’s start with the easy ones:
- There was the regular Data Center Fabrics update webinar in May with guest speaker Dinesh Dutt from Cumulus Networks;
- IPv6 microsegmentation webinar in March extended the IPv6 curriculum;
- Michele Chubirka had a great webinar on open-source security tools in September;
- The Designing Active-Active and Disaster Recovery Data Centers completed the first phase of the cloud building curriculum (more to come in 2016);
However, I spent most of my time developing the SDN and network automation curriculum: