David Bombal
David Bombal
Want to learn about IT? Want to get ahead in your career? Well, this is the right place!
On this channel, I discuss Python, Ethical Hacking, Networking, Network Automation, CCNA, Virtualization and other IT related topics.
This YouTube channel has new videos every week! Subscribe for technical, detailed, no fluff content.
David’s details:
Discord: https://discord.com/invite/usKSyzb
Twitter: https://www.twitter.com/davidbombal
Instagram: https://www.instagram.com/davidbombal
LinkedIn: https://www.linkedin.com/in/davidbombal
Facebook: https://www.facebook.com/davidbombal.co
Website: http://www.davidbombal.com
YouTube: https://www.youtube.com/davidbombal
All the best!
David
On this channel, I discuss Python, Ethical Hacking, Networking, Network Automation, CCNA, Virtualization and other IT related topics.
This YouTube channel has new videos every week! Subscribe for technical, detailed, no fluff content.
David’s details:
Discord: https://discord.com/invite/usKSyzb
Twitter: https://www.twitter.com/davidbombal
Instagram: https://www.instagram.com/davidbombal
LinkedIn: https://www.linkedin.com/in/davidbombal
Facebook: https://www.facebook.com/davidbombal.co
Website: http://www.davidbombal.com
YouTube: https://www.youtube.com/davidbombal
All the best!
David
Episodes
Mentioned books

Jun 10, 2019 • 39min
#49: The CCIE is dead in an SDN world! Right?
Is the CCIE still relevant? Are CCNA, CCNP and CCIE certs even worth it? Surely SDN and Network Automation are replacing certifications? The CCIE is no longer worth it as networks will be automated. Right? With SDN and network automation, there is no longer a need for CCNA, CCNP or CCIE certifications. Jeff McLaughlin, Director, Technical Marketing at Cisco tells us his thoughts on this. He also explains SD-Access (SDA) and other Cisco SDN technologies.
Menu:
Who is Jeff: 00:24
The CCIE is dead: 2:20
Is Networking still a good career? CCNA or Python? 8:05
Open Source tools? 11:00
What is SDN? 13:17
Does Cisco support OpenFlow? 16:34
What is Intent Based Networking? SD-Access / ACI / SD-WAN 18:30
What is SD-Access (SDA)? 21:46
What is the advantage of SD-Access? 27:46
Can ACI and SD-Access work together? 32:38
What is the best technology to study as a new person? 33:48
Jeff's details:
Blog: http://www.subnetzero.info/
INTERVIEWING #1: How I got my first networking job: http://www.subnetzero.info/2019/03/15/880/
David's details:
YouTube: https://www.youtube.com/davidbombal
Twitter: https://www.twitter.com/davidbombal
Instagram: https://www.instagram.com/davidbombal
LinkedIn: https://www.linkedin.com/in/davidbombal
#devnet #ccie #sdn

Jun 10, 2019 • 15min
#48: You can also code! Network Engineer programs Cisco Viptela SD-WAN using Python! DevNet demo
Don't be scared! You too can learn to code networks like Adrian did! Network Engineer becomes a NetDevOps engineer and improves his life. No, your job will not be taken away, but your life will get better.
Menu:
Why did you create this SD-WAN solution? 0:20
Network Engineer creating software? 2:30
What to download the code and see for yourself? 3:45
Network Person can develop their own code 4:30
Demo of the solution: 4:58
What was it written in? 7:25
Network Engineers becoming developers 8:48
How has this changed your life? 9:53
Will it take our jobs away? 11:00
Don't be scared! Get help: 12:45
DevNet is free: 13:20
Get the code:http://bit.ly/2ItmeGK
DevNet Main Page: http://bit.ly/2WRvXQI
DevNet Start Now: http://bit.ly/2XsY4CQ
Adrian's Details:
Twitter: https://twitter.com/aidevnet
David's details:
YouTube: https://www.youtube.com/davidbombal
Twitter: https://www.twitter.com/davidbombal
Instagram: https://www.instagram.com/davidbombal
LinkedIn: https:/www.linkedin.com/in/davidbombal
#devnet #sdwan #ccie

Jun 6, 2019 • 18min
#47: Need help with Network Automation? Cisco DevNet Developers are here to help!
Need help with your company's Network Automation? Come and discuss your projects with the DevNet team! Meet the developer and get help from the DevNet stars!
Whats new and exciting at Cisco DevNet this year? Hank Preston tells us all about it!
Menu:
Hank's personal experience: 00:53
How to get started? 3:25
Meet the Developer - get help with your automation projects: 4:05
Exciting new things happening: 7:46
DevNet Co-Creations: 11:10
DevNet Takeovers: 11:57
Sandbox Challenges: 13:10
Come and meet us: 15:30
More information here: https://developer.cisco.com/ciscolive
Meet the Developer:
Get mentored to get started with programming... Your journey to becoming a developer begins here!
Cisco Design Thinking
Experience the power of the end-to-end flow of Design Thinking.
Get tips on running Design Thinking activities or workshop sessions with your team and customers.
Start Now
Come check out the beginning 101 courses on GitHub, Python, Coding, Meraki, Cisco DNA Center, Cisco ACI and more… Save your spot to get hands-on with iOS, Swift and much more..
DevNet Co-Creations
Discover the art of possible when you partner with the DevNet team to customize your innovation.
Check the latest innovative demos with various partners....
DevNet Takeovers
Join us for snacks, drinks, giveaways and product specific content with various Cisco groups.
Sandbox Challenge
Play the DevNet Sandbox Tablet Teaser Challenge. If you get the fastest time of the day, a great prize will be yours!
#clus #devnet #clus2019

Jun 3, 2019 • 22min
#46: Want a job at Cisco? Resume and Interview tips! jobs | ccna | cisco
Career advice: Is your Resume good enough? How to ace the interview! Job tips from Jeff McLaughlin, Director, Technical Marketing at Cisco! Make sure you spend time checking your Resume. How to answer technical questions. Do I need to get a degree? Or are certifications enough?
Menu:
1) Resume tips: 00:44
2) Too much focus on Technical skills: 4:14
3) Interview tips: 5:50
4) What do I need to do to work at Cisco? 9:42
5) What about social media marketing? 11:38
6) Certs vs examples of work? 13:14
7) Degrees vs certifications? 14:28
8) Can I get a job at Cisco without a degree? 18:10
9) Cisco Dress code: 19:03
Jeff's details:
Blog: http://www.subnetzero.info/
INTERVIEWING #1: How I got my first networking job: http://www.subnetzero.info/2019/03/15/880/
David's details:
YouTube: https://www.youtube.com/davidbombal
Twitter: https://www.twitter.com/davidbombal
Instagram: https://www.instagram.com/davidbombal
LinkedIn: https://www.linkedin.com/in/davidbombal
#jobs #ccna #ccnajobs

Jun 1, 2019 • 1h 14min
#45: What is Wi-Fi 6? Fundamentals of 802.11ax / wifi 6
Do you know how Wifi 6 actually works? Do you understand terms such as OFDMA, BSS Coloring, TWT, 1024 QAM and more? Well this video explains all of those terms! Wifi 6 is not a switch as some have said - even with OFDMA - but 802.11ax now allows multiple clients to transmit at the same time! That is a massive change in wifi technologies. Learn about all the new wifi 6 advantages and confusing terms in simple to understand language.
Rowell explains Wifi fundamentals and advanced concepts using simple language and fantastic analogies.
Wifi is becoming more and more important. So, if you are studying for your ccna wireless exam, or ccnp exam, this video will help you. Learn about ofdma and other terms: bss coloring, target wake time and many others. Even if you are only preparing for your icnd1 or ccent exam, start learning some wireless technologies if you want to get a career as a network engineer.
Menu:
Wifi 6 new features: 00:01
Wifi 6 speed: 1:12
Rowell Introduction: 4:25
Wifi podcast: 5:00
Rowell's experience - Stanford University: 6:15
What about Wi-Fi 6 is interesting (high efficiency) 9:30
Why is it called Wifi 6? 11:27
What fast is Wifi 6 - caveats: 14:00
What does Wifi 6 high efficiency mean? 15:49
OFDMA: 17:55
Getting back to the basics: What is a channel? 20:45
Is Wifi 6 a switch? 22:15
What is channel bonding? 25:22
MIMO:27:00
Multiple Radios (Radio Channels): 28:36
Wifi 6 2x2, 4x4, 8x8 Radio chains: 30:43
MU-MIMO - is it like a switch? Or Hub?: 35:03
BSS Coloring: 46:39
Is Wifi 6 it real? Is it pre-standard? 49:30
2.4 Ghz change in Wifi 6: 50:53
Latency in Wi-Fi 6: 53:01
What about the client devices? 54:12
Will old devices slow the network down? 55:32
How many years will it take to convert? 57:28
Real World Deployment? Should I upgrade? What should customers do? Get Wifi 6 today? 58:38
Wifi 6 Modulation: 1024 QAM: 1:01:02
Target Wake Time (IOT devices):1:05:14
Wifi Tools: 1:13:06
Cisco Video mentioned: https://youtu.be/V5qLv0BtBcM
Rowell's contact details:
Twitter: https://twitter.com/rowelldionicio
Podcast: https://www.cleartosend.net
Website: https://www.packet6.com
LinkedIn: https://www.linkedin.com/in/rowelldionicio/
David's contact details:
Twitter: https://twitter.com/davidbombal
Instagram: https://www.instagram.com/davidbombal/
LinkedinIn: https://www.linkedin.com/in/davidbombal/
YouTube: https://www.YouTube.com/davidbombal
Learn more here:
What Is Wi-Fi 6? http://bit.ly/2Jvlcx9
Cisco Access Points: http://bit.ly/2Ekpjru
Wi-Fi 6 (802.11ax) Solution: http://bit.ly/2JvkQGP
5G or Wi-Fi 6? Yes.: http://bit.ly/2w9URfb
Cisco DevNet Wireless page: https://developer.cisco.com/wireless/
Main Cisco DevNet Page: http://cs.co/9002DQ3Tu
#wifi6 #80211ax #ccna

Jun 1, 2019 • 1h 18min
#44: The top 10 skills Network Engineers need to learn in 2019!
What are the top 10 skills and technologies you need to learn in 2019? CCNA? Python? AWS? Ivan Pepelnjak shares his knowledge about SDN, OpenFlow, NSX, Whitebox switching, disaggregation, Cumulus Linux and a whole lot more. Use the menu to jump to a specific topic.
Previous video: https://youtu.be/BmnRf0HCy_Q
Connect with Ivan:
Website: http://bit.ly/2Hci4oL
Twitter: https://twitter.com/ioshints
LinkedIn: https://www.linkedin.com/in/ivanpepel...
Connect with David:
Twitter: https://twitter.com/davidbombal
Instagram: https://www.instagram.com/davidbombal/
LinkedIn: https://www.linkedin.com/in/davidbombal/
Top 10 skills discussion starts here: 01:09:10
Menu:
00:17 - Introductions
01:15 - Ivan's new content and interesting courses
03:00 - Webinar content
05:25 - Do Network Engineers need to know the theory behind specific topics like OSPF
09:50 - What is SDN?
19:34 - OpenFlow implementations
22:20 - Other SDN solutions
24:02 - What is Cisco ACI?
27:40 - What is VMware NSX?
33:00 - How do the other SDN solutions compare?
35:00 - Should I study Cisco or AWS?
43:50 - Will we still have jobs in the cloud era? Will AWS and Azure replace my jobs?
47:07 - Will automation replace network engineers? Will AI replace us?
50:40 - AWS versus CCIE?
53:00 - Cumulus and other vendor switches used by Facebook, Amazon etc Why should I care?
59:55 - What is Whitebox switching / disaggregation?
01:09:10 - Should Network Engineers learn Linux?
01:09:47 - What technologies should I learn today if I'm starting out in my career?
01:13:45 - Other skills you should get today? Soft skills / mentorship.
01:15:00 - Don't fake it!
Top 10 technologies and skills to learn in 2019:
1) Networking - obviously you need to know networking if you are a network engineer :) Get your ccna / CCNP / CCIE
2) Linux
3) Git
4) Python
5) Higher level automation tool like Ansible / Bash / Make
6) Networking on Linux
7) Cloud skills like AWS or Azure
8) Application Architectures
9) Soft skills
10) Mentoring
Courses:
Python for Network Engineers ($10):
Udemy: http://bit.ly/2Wwb0aD
GNS3 Academy: https://goo.gl/vnZJhg
Linux for Network Engineers ($10):
Udemy: https://bit.ly/2EFyHU8
GNS3 Academy: https://bit.ly/2HuEY80
Ansible for Network Engineers ($10):
Udemy: http://bit.ly/305b5nL
Cumulus Linux ($10):
http://bit.ly/2LKyIPx
DavidBombal.com: All courses are part of subscription http://www.davidbombal.com
#top2019skills #top2019technologies #study2019

Jun 1, 2019 • 44min
#43: 2019 CCNA future? Ivan Pepelnjak: The straight talking genius tells us what's important!
Want to learn from the best? Learn from Ivan Pepelnjak! The "grumpy old network engineer" tells us about OpenFlow, SDN, Network Automation, Certifications and a lot more in this interview. Is it worth my time learning OpenFlow? Is network automation and SDN hype? Are certifications still worth it?
Connect with Ivan:
Website: http://bit.ly/2Hci4oL
Twitter: https://twitter.com/ioshints
LinkedIn: https://www.linkedin.com/in/ivanpepelnjak/
Connect with David:
Twitter: https://twitter.com/davidbombal
Instagram: https://www.instagram.com/davidbombal/
LinkedIn: https://www.linkedin.com/in/davidbombal/
Menu:
Introduction: 00:10
Ivan's books and the old days: 01:23
ipSpace overview - why?: 2:33
One story from the early days: 04:00
How ipSpace can help you: Real world and multivendor: 04:45
80% of what they tell us is @£$@£$%: 6:05
Distributed Data centers across bridged networks and SDN and OpenFlow: 6:48
What would you do if you started today? Are certs important today? 07:50
Where did the Cisco CLI come from? 10:00
Study Cumulus Linux and other vendors while doing your CCNA: 11:15
How to increase the value of your knowledge: 11:44
Networking hasn't changed in the last 40 years and whatever you learn about networking will still be valid 20 years from now: 13:15
Certifications are still valid. Networking will become like power transmission networks: 15:00
There will be fewer jobs for network engineers in future: 19:35
Low end jobs will disappear. Make sure you learn network automation: 22:00
ipSpace automation courses and SDN: 25:30
Why should I learn and implement network automation? 30:26
When should I start learning automation? 33:25
CCNA before automation or at the same time? 35:30
Are you scared of spiders? Ansible or Python? 36:25
Nornir / Netmiko / NAPALM: 37:20
Should I learn SDN / OpenFlow in 2019? 42:28
David's details:
YouTube: www.youtube.com/davidbombal
Twitter: twitter.com/davidbombal
Instagram: www.instagram.com/davidbombal/
LinkedinIn: www.linkedin.com/in/davidbombal/
#Ansible #CCNA2019 #Python

Jun 1, 2019 • 4min
#42: Time. What did you do today?
Time. What did you do today? Did you use your time wisely?
It's my birthday today! Time for a giveaway! Do you want to win a $250 Amazon eGift? Use the link below. Thank you for all your support!
Enter here: https://gleam.io/USxNZ/amazoncom-250-birthday-giveaway
David's details:
YouTube: www.youtube.com/davidbombal
Twitter: twitter.com/davidbombal
Instagram: www.instagram.com/davidbombal/
LinkedinIn: www.linkedin.com/in/davidbombal/
#ccna #motivation #goals2019

Jun 1, 2019 • 1h 14min
#41: Network Engineers are Developers! No more excuses.
No more excuses. Network Engineers are now developers. Plus, learn how to open CSV files and manipulate CSV data using Python.
Hank Preston continues to teach us core Python skills.
Menu:
00:16 - Hank Conferences
00:34 - Global PyCon conference
01:10 - Is the python PyCon conference worthwhile for Network Engineers?
03:00 - Network Automation Open Space at PyCon
05:25 - Are Network Engineers Programmers / Developers?
09:25 - Imposter Syndrome!
12:50 - Sharing is caring
15:50 - Python Libraries & Packages / Don't reinvent the wheel!
17:08 - CSV Libraries
19:15 - Atom (IDE) and iPython and other code editors
21:33 - Working with CSV libraries
25:00 - Importing and opening CSV
32:48 - Python for loop
42:33 - Using the Python With statement
50:51 - Using the built in help capabilities
1:00:35 - Prompting the user to add more data
1:05:47 - Using a Shebang line
1:08:20 - Linux Permissions (add execute permissions)
Links:
Start Now Page on Devnet: http://bit.ly/2WBjb5v
NetDevOps Live Episode on Python Libraries including CSV: http://bit.ly/2VjbGP4
Coding Fundamentals Learning Labs: http://bit.ly/2vU1BO8
Network programmability Basics Video Series covering CSV: http://bit.ly/2JzlbY4
David's details:
YouTube: www.youtube.com/davidbombal
Twitter: twitter.com/davidbombal
Instagram: www.instagram.com/davidbombal/
LinkedinIn: www.linkedin.com/in/davidbombal/
#python #devnet #ciscopython

Jun 1, 2019 • 1h 15min
#39: Which Network Automation Tools should I learn? Python, Ansible, Genie and more
It's confusing! Where do I start with network automation? Which tools should I learn? Hank Preston opens the Network Automation Tool Chest and tells us which tools we should learn. We have a roadmap of tools to learn, how to start learning and how to deploy in the real world.
Which tools are best to start with? python or ansible or netmiko or pyats or paramiko? We discuss lots of options in this video.
#Python #Ansible #Genie
Links:
DevNet home page: http://bit.ly/2MHbgOk
Network programmability Basics Video Series: http://bit.ly/2GGzg2T
Laptop Setup Labs: http://bit.ly/2GGzh6X
Coding Fundamentals Learning Labs: http://bit.ly/2ZK8yiP
Ansible Learning Labs: http://bit.ly/2ZEdqFY
Menu:
0:38 - What Network Automation Tools
02:56 - The NetDevOps Engineer's Tool Chest
06:42 - Network Service and Configuration Management tools
10:36 - Where to start - Netmiko
12:55 - Genie CLI
15:00 - Ansible
20:20 - Domain Specific Language
22:14 - Python vs Ansible
24:08 - Napalm + Nornir
27:15 - Issues with Napalm and Netmiko
28:19 - Real World Use Cases of network automation tools
30:02 - pyATS & Paramiko
33:49 - pyATS & Genie
41:04 - DIFF
42:54 - How to schedule Network Automation
45:06 - Do Network Engineers need to learn Linux? Bash?
49:07 - Is Ansible Linux based?
50:15 - Other core skills needed today for Network Engineers
52:22 - Other Resources to help you
58:32 - Orchestration/Integration tools
59:33 - What is CICD?
1:04:00 - Do I need to learn Jenkins?
1:07:40 - The future of things going?
1:09:22 - Is there a presentation that goes over all of these tools?
01:10:10 - What should I begin with as a beginner?
# Getting Started
0. Foundation "Stuff"
* Python
* Linux/bash fundamentals
* git
* REST APIs
1. CLI Based Interactions
* Python + Netmiko - Configuration Based use cases
* Genie CLI - Operation based use cases
* Parmiko - NOT RECOMMENDED - just use Netmiko
2. Network Automation Frameworks/Abstractions
* Ansible "Domain Specific Language (DSL)" - Configuration Use Cases
* NAPALM + Python - Configuration Use Cases
* Nornir + Python - Configuration Use Cases
3. Network Verification
* pyATS/Genie + Python - Operational / Testing Use Cases
* For every BGP neighbor, ensure prefixes being learned
* For every "up interface", ensure no CRC errors
* "Profile" before change, Change, "Profile" after, DIFF
Other Skills/Questions
1. How to schedule "stuff"
* Run a Python script every hour - cron utility on Linux/Unix/macOS
* Orchestration/Integration Tools - (CICD Tools) - Jenkins, Drone, Gitlab
* "Event Driven"
* Central Management Servers - Ansible Tower
# Real World Use Cases
* Scale
* Performance
* Transactions/Error Recovery
David's details:
YouTube: www.youtube.com/davidbombal
Twitter: twitter.com/davidbombal
Instagram: www.instagram.com/davidbombal/
LinkedinIn: www.linkedin.com/in/davidbombal/
#python #netdevops #devnet #genie #pyats #python #netmiko


