ifconfig.it

Where the vNIC meets the Network

VMware NSX VCP6-NV

Today I passed exam 2V0-642 to update my VCP5-DCV and got VCP6-NV (NSX v6.2) I’ll share here what I used to prepare the exam. Learning Path I passed exam VCP5-DCV in 2015. At the time I expected to work more with datacenter technology and I needed a more in-depth knowledge of how virtualization works. After a couple of years I needed to pay the vendor tax a.

Cisco ASA show connections ordered

When a customer calls with a problem or request I often see a chance to investigate a technology, learn something new or apply random skills to find a creative solution. This time is about an ASA, customer noticed too much traffic on the Internet facing interface. Syslog, Netflow, bandwidth monitoring and any other useful tools are totally missing, only the old good CLI to help. The MVP We can get a list of all active connections from ASA with

Innovation sirens singing

In episode 13 of the Network Collective podcast around minute 26 Jordan Martin asks: Aren’t we all just following a trend? The discussion topic is how to mentor juniors in a learning path to grow their skills and be experts eventually. The question can be translated as: Are we creating fake (IT) news/trends or is it just (excessive) nerd enthusiasm? Bloggers, events, news Tech professional read every day about some new technologies promising to change the way we work, live and play.

Network Automation seminar with Ivan Pepelnjiak

This week I’ve attended the Network Automation Seminar organized by Reiss Romoli. The speaker was the great Ivan Pepelnjiak! I was happy to meet Ivan again after NFD16. At the event I joined old and new friends: Andrea, Nicola, Paolo and Tiziano. Are these networkers or programmers? ;) @ioshints @adainese @nmodena @ReissRomoli @Paolo_Lucente #networking pic.twitter.com/RwjX6h2Mng — Gian Paolo (@gp_ifconfig) October 19, 2017 Content is king In two days Ivan presented tools, solutions, concepts and a lot of use cases of network automation.

NFD16 day two - Cisco Project Starship a.k.a. Intersight

Day two of NFD16 with Cisco. The presentation was split in two parts. First part for Intersight, second part for Tetration. I’ll post here just a few thoughts about Intersight. Merakify all the servers! What’s Cisco Intersight? If you’re familiar with cloud-managed devices like Meraki the concept is quite similar. A Cisco server runs the Device Connector client that links to a central management portal that runs on Cisco DC SaaS.

Are we the last generation of Network Engineers?

Automation is today a word that can be both scaring and exciting at the same time. The scary part is often related to the question: will robots steal my job? Federico Pistono says that’s ok. We read articles about how many jobs will not exist anymore soon, and sometimes how new jobs will be create to support automation. The most advanced analysts try to predict how a society can survive with massive unemployment.

Is more technology good for your business?

I read this post on Ivan’s blog this morning and as often happens it made me think. The key point is: figure out what your most pressing problem is. Who should do that? Let’s analyze the roles involved in a typical SMB or enterprise. Vendors Vendors have just one target: sell their products. They can’t really customize the product to every business needs so they try to convince the customer the problem their product solve is the problem you have.

NFD16 day two - Apstra

Day two of NFD16 started with Apstra and their intent-based networking system. Intent concept is not as broad as SDN but still vendors have different views of this meaning. According to Apstra an intent is “the definition of the expected outcome”. The sum of the intents of a network is the source of truth. Read Sasha Ratkovic blog post about the definition of Intent Based Networking. The checklist he suggest can be very useful to compare different solutions and spot intent washing strategies.

NFD16 day one - Arista

Second part of Tech Field Day NFD16 day 1 continues with Arista. Getting ready for @AristaNetworks #NFD16 pic.twitter.com/SCWXVGsR2l — Gian Paolo (@gp_ifconfig) September 13, 2017 Arista’s presentation included 400G (hist: it’s fast!), EOS programmability, Network Automation and Telemetry, Routing Architecture Transformations. All video recording are in the youtube channel of TechFielDay. EOS Programmability Ken Duda (Founder, CTO, and Senior VP of Software Engineering) did a great session about EOS programmability explaining the reason of some technical choices and the available options.

NFD16 day one - Veriflow

First day at Tech Field Day NFD16, I’m quite excited to be here among fellow network engineers to share our views on products and technologies. I’m planning to post my takeaways for each vendor with variable lengths based on my knowledge and interest of the specific product. Today’s first presenter is Veriflow. Let’s see what Continuous Network Verification is and how it can help to make networks more robust and secure.