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Videos uploaded by user “David Bombal”
My career crashed! My story.
 
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Here is my story of how my career crashed! Hardship can make you grow stronger. Sometimes you learn more through the pain. Has your career crashed and burned? Are you dejected? Are you down in the dumps? Time to stand up and make a difference in your life! Don't let stumbles or failures stop you reaching your goals! We all fail at some point in our lives. It is not how many times you fail, but how many times you get up again that counts! Don't stop trying. Don't stop moving to your goals.
Views: 12662 David Bombal
GNS3 Talks: Integrate Windows Virtual Machine with GNS3 = GNS3+GNS3 VM + Windows 10 VM + Cisco
 
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Learn how to integrate a Windows VM with GNS3 and create a network with GNS3, plus GNS3 VM, plus Windows VM and Cisco IOS. Free software worth $200: https://goo.gl/613TUF GNS3 VM Integration Video: https://youtu.be/plgCr4Rbwz8 GNS3 Download: https://gns3.com/ GNS3 Component selection options (scroll down to "Here is a brief description of software" heading: https://goo.gl/zv5cFe GNS Support (Go here if you need help): https://gns3.com/community
Views: 8938 David Bombal
GNS3 2.1 Install and configuration on Windows 10 (Part 1): Components and software requirements
 
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This video explains and demonstrates how to install the GNS3 Windows GUI on a Windows 10 PC. This is one of a series of videos showing you how to get started using GNS3 on Windows. Transcription: This is one of multiple videos showing you how to download, install and configure GNS3 version 2.1 on a Windows 10 PC. When you first start out with GNS3 it can be quite confusing and even overwhelming to know what to do because there are many components and technologies that you can leverage within GNS3. In brief, there are two main components that you need to be aware of. The first component is the GNS3 GUI or GNS3 Graphical User Interface. This is a Windows executable that you install on your Windows computer. The second main component is the GNS3 VM or GNS3 Virtual Machine. This is a Virtual Machine that you run within a hypervisor such as a VirtualBox VMware Workstation or VMware Player. In some cases, you don't have to use the GNS3 VM. You only need the GNS3 Graphical User Interface. But for most implementations and for the best use of GNS3, it's recommended that you use both the GNS3 GUI as well as the GNS3 VM. In addition,you're going to need the operating systems of devices. So in other words, if you want to run a Cisco IOS router, you need the Cisco IOS software. If you're going to run an Arista switch, you need the Arista operating system or if you want to run a Juniper firewall, you'll need the Juniper operating system. So whenever you want to add networking vendors device to your GNS3 topologies, you'll need to provide the operating system for that device and you'll need to download the operating system from the vendor's website or as an example, copy it from a physical router or switch. And neither I and nor GNS3 can legally provide you with a Cisco IOS images. You have to provide your own images. that is a requirement for using GNS3. I would love to give you IOS images but neither I or GNS3, due to legal requirements, are able to provide IOS images to you, you need to provide your own. In these series of videos I'm going to show you firstly, how to install the GNS3 GUI and get a basic network working using the GNS3 GUI. And then in subsequent videos I'll show you how to download and integrate the GNS3 VM with the GNS3 GUI and how to run devices such as Cisco VIRL IOSv and IOSv Layer 2 on the GNS VM. Discounted link to course here: https://goo.gl/ntqu3G
Views: 34418 David Bombal
GNS3 Talks: Python for Network Engineers with GNS3 (Part 1). Network programmability made easy.
 
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Udemy: Get the course for $10 here: https://goo.gl/QYC988 GNS3 Academy: Get the course for $10 here: https://goo.gl/vnZJhg More free Python videos here: https://www.youtube.com/playlist?list=PLhfrWIlLOoKPn7T9FtvbOWX8GxgsFFNwn Learn Python programming with GNS3. In this series of videos I will show you how you can quickly and easily program Cisco networks using Python. In this video we program a Cisco IOSv router using Python on an Ubuntu Docker container. The script used in this video is available on GitHub here: https://github.com/davidbombal/pythonvideos/blob/master/pythonR1script1.py Transcription: This is one of multiple videos discussing Python programming. Now there's a lot of information on the internet with regards to Python programming, but in these series of videos I'm going to concentrate solely on the use of Python with networking devices and specifically with gns3 . I'm a very strong believer in practical learning. Think about it, when you were a child, did you go to university or school to learn how to ride a bike? Typically you learnt how to ride a bike by riding a bike and falling off a few times, making mistakes. But as you practiced you got better and better at riding a bike. I think the same is true for any other skill that you want to gain and any other knowledge that you want to obtain. The best way to do it is to just do it , make mistakes, pick yourself up and try again. And with that in mind I'm going to show you how quickly you can get programming a Cisco network using Python. In Google I've done a search for Python telnet and my first hitch is the telnet library or telnet client available in Python 2.7. Now there's a large debate in Python community about which version of Python you should learn. Python 2.7 is being replaced by Python 3. But notice on the Python website you can still download Python 2.7 and a lot of operating systems and network devices have version 2.7 by default. I'm going to show you both Python 2.7 and python 3 as part of these videos or as part of my GNS3 Python course. You may only have Python 2.7 available so it's good to know that but you should also learn Python 3 for the future. So notice the simple script that we can copy from the Python documentation. We'll start off with a script and start programming our GNS3 topology. In GNS3, I'm going to drag a iOS router to the workspace as well as an iOSv switch. These devices take a while to boot up, so to allow my docker containers to connect to the Internet quickly, I'm going to use a layer 2 switch. One of the docker containers available is in a blue 2 container and that's what I'm going to use in this topology rather than trying to get python running on your Windows PC or trying to get Python working on other operating systems. It's going to be a lot quicker for us just to use a docker container and add that to our GNS3 topology. Again, my belief is start or learning as quickly as you can, make mistakes and learn from that. Don't get hung up with trying to learn the best way to do everything right away. Just get started. Some people believe that they need to have a degree to become a programmer or use programming skills in networking. I don't necessarily agree with that. Just get started. So on the Ubuntu machine I'm going to edit to the config. I'm going to set this device to use DHCP and click Save and click start. To boot up the network, I'm going to open up a console to each device. Now again the Cisco devices will take a while to boot up but our docker container has already booted up and we can already ping google.com even though the switch and the router are still booting. So how to get update? We will get update our references in ubuntu, that's done, will install Python. In this first example I'm going to install Python 2.7. So Python version of Python that we're using is 2.7. 1. So here is the script that we're going to start off with it's not perfect. What we will be doing now is not necessarily the most optimized way of implementing a script like this but the idea there is, we want to get started, get it working by for instance creating a loop back on the router and configuring VLANs on the switch and then we can build on our script and optimize it. I'm going to use nano to create a file so let's call this python Router1 script 1 to start off with. And then I'm going to paste the code off the internet into nano. so we’re importing modules here get passes telnet library. The device that we're going to telnet to is going to be the router. So we need to configure the router's IP address, username and password and other details for when the script telnets to the router. So before we continue with our script let's configure the network devices. See here's the router it's booted up. Now I'll bypass the initial configuration dialog. Transcription limited by YouTube.
Views: 116362 David Bombal
GNS3 Talks: Ubuntu Docker Container, OpenDaylight, Python, SDN Part 1
 
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Free software worth $200: https://goo.gl/613TUF This is part 1 of a series of videos showing you how to import and configure an Ubuntu Docker container in GNS3. Subsequent videos show the installation of OpenDaylight (ODL), Python and more! Docker Overview: https://youtu.be/HdntvE0Nn-c Open vSwitch: https://youtu.be/t7JWmGOVZYg
Views: 5750 David Bombal
GNS3 Download, installation and configuration - GNS3 1.5.3 and Windows 10
 
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How to download, install and get GNS3 working. This video shows you how to get started with the latest stable release of GNS3: 1.5.3 Free software worth $200: https://goo.gl/613TUF GNS3 VM Integration Video: https://youtu.be/plgCr4Rbwz8 GNS3 Download: https://gns3.com/ GNS3 Component selection options (scroll down to "Here is a brief description of software" heading: https://goo.gl/zv5cFe GNS Support (Go here if you need help): https://gns3.com/community
Views: 52459 David Bombal
How important is your future? What's stopping you?
 
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What's holding you back? What's stopping you from getting your certification or doing more with your life? Networking is always changing - this is your opportunity! Turn your hardships into diamonds. Ignore the haters. Funnel your pain and anger into something constructive. Forgive and get on with it! Just do it! #CCNA #CCNP #Motivation
Views: 19314 David Bombal
GNS3 How to save your router configs
 
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You can now get the Official GNS3 Fundamentals Course: Created with the GNS3 Developers! http://academy.gns3.com/courses/gns3-fundamentals-official-course
Views: 52208 David Bombal
STOP Wasting Your Time, Watch This Video To Get Motivated...
 
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STOP Wasting Your Time, Watch This Video To Get Motivated: You only have 24 hours to change your life. Use them wisely! What are you spending your time doing? Are you spending your time on the important things in life? What are your goals? Are you working towards your goals or are you wasting your time on low priority tasks! Use your time wisely! #CCNA #GNS3 #CCNP
Views: 3054 David Bombal
GNS3 VM integration using VMware Workstation Player and the GNS3 GUI. Free virtualization (Part 1)
 
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This video shows you how to integrate the GNS3 VM using VMware Player. Watch this video for the GNS3 GUI install: https://youtu.be/4ukwpvCuxHI Virtualization options Part 1: https://youtu.be/z-IrTVIi0Ew Virtualization options Part 2: https://youtu.be/ht1vqcXaqPM GNS3 VMware Workstation Player allows you to run nested Virtualization for free. Download the VMware Player from the VMware website and the GNS3 VM from the GNS3 website. Then integrate the GNS3 GUI with the GNS3 VM and run complex network topologies. Download free Engineer's toolset from here: https://goo.gl/613TUF
Views: 24744 David Bombal
GNS3 2.0 Install on Windows 10 (Part 4). GNS3 VM integration: VMware, GNS3 VM, GNS3 GUI
 
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This video explains and demonstrates how to download and integrate the GNS3 VM with the GNS3 GUI on a Windows 10 PC. My full CCNA course is here: http://academy.gns3.com/p/the-complete-networking-fundamentals-course-your-ccna-start GNS3 Install Part 1: https://youtu.be/4ukwpvCuxHI GNS3 Install Part 2: https://youtu.be/6tmfzO9Q2cI GNS3 Install Part 3: https://youtu.be/viQ6wkfFGxU Get $200 worth of network software for free here: https://goo.gl/613TUF What do you want to learn? Let me know via the comments.
Views: 63809 David Bombal
CCNA VLOG #007: BGP configuration and verification for the CCNA 200-125 exam
 
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Learn how to configure BGP to prepare for your CCNA exam. This is one of multiple VLOGs showing the configuration, verification and troubleshooting of BGP. My full course is here: http://www.ccnax.com Subscribe to learn how to pass the CCNA 200-125 exam. Also includes content for the ICND1 100-105 and ICND2 200-105 exams. What do you want to learn? Let me know via the comments.
Views: 4540 David Bombal
Do you want to accomplish more? Do Deep Work! Quieter Music Version
 
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Are you struggling to cope with the amount of information you have to learn? Are you struggling with all the data you have to process? Then stop. Think about what is important. Then focus and do deep work! Get motivated! Get going! No excuses! Get rid of the distractions! Do deep work!
Views: 3329 David Bombal
CCNA VLOG #002: Q&A: Loopback? What? Why? CCNA 120-125 questions
 
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CCNA Question and Answer time! My full course is here: http://www.ccnax.com Subscribe to learn how to pass the CCNA 200-125 exam. Also includes content for the ICND1 100-105 and ICND2 200-105 exams. What do you want to learn?
Views: 7447 David Bombal
GNS3 VM Integration: GNS3 1.5.3, VMware and Windows 10 with GNS3 Talks
 
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Learn how to integrate the GNS3 VM with the GNS3 GUI 1.5.3 Free software worth $200: https://goo.gl/613TUF GNS3 1.5.3 GUI Installation: https://youtu.be/g52dTn4Y_Xs GNS3 Download: https://gns3.com/ GNS Support (Go here if you need help): https://gns3.com/community VMware Workstation: https://my.vmware.com/en/web/vmware/info/slug/desktop_end_user_computing/vmware_workstation_pro/12_0
Views: 53255 David Bombal
GNS3 Nexus (NX-OSv) switch setup and configuration Part 1: GNS3 switching options Part 12
 
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Learn how to configure switching in GNS3. In this video we discuss importing and configuring a Cisco Nexus 7k switch with GNS3. Free software worth $200: https://goo.gl/613TUF Switching options in GNS3: https://youtu.be/zYaljXNfBdc VIRL image downloads: https://virl.mediuscorp.com/my-account/ Cisco IOS Software Download: https://software.cisco.com/download/navigator.html GNS3 Download: https://gns3.com/ GNS3 Support (Go here if you need help): https://gns3.com/community
Views: 27133 David Bombal
CCNA #084: MPLS Part 1: MPLS Terms for the CCNA Exam (P, PE, CE, LSR, LSP, Label)
 
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This is one of multiple MPLS videos that are part of my CCNA course. My full course is here: http://www.ccnax.com Get $200 worth of network software for free here: https://goo.gl/613TUF Subscribe to learn how to pass the CCNA 200-125 exam. Also includes content for the ICND1 100-105 and ICND2 200-105 exams. What do you want to learn? Let me know via the comments.
Views: 2622 David Bombal
GNS3 Talks: How to connect GNS3 to a physical network (Part 1).
 
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In this video I show you the recommended way of connecting GNS3 to a physical network using the cloud device in GNS3. Get $200 worth of network software for free here: https://goo.gl/613TUF
Views: 23736 David Bombal
SDN and OpenFlow Overview - Open, API and Overlay based SDN
 
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Want to learn more? Join my GNS3 Practical SDN and OpenFlow Fundamentals course: https://goo.gl/OiMSjw In this video we discuss the emerging SDN technology and how it is changing networking as we know it. We discuss the various definitions of SDN including the OpenFlow protocol. The three main definitions of SDN are: 1) Open SDN using OpenFlow 2) SDN via APIs 3) SDN via Overlays
Views: 114030 David Bombal
GNS3 Talks: Use the NAT node to connect GNS3 to the Internet easily!
 
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Starting with GNS3 2.0 a NAT node is available. This node allows you to a connect a GNS3 topology to the Internet via a NAT. But your topology is not accessible from the internet. It’s useful when you need to download stuff from internet (package, licence check…). And it’s easier to use than the Cloud node. The NAT node require the GNS3 VM or a Linux computer with libvirt installed. By default the NAT node run a DHCP server that will give you an IP in the range 192.168.122.0/24. Free software worth $200: https://goo.gl/613TUF VIRL image downloads: https://virl.mediuscorp.com/my-account/ Cisco IOS Software Download: https://software.cisco.com/download/n... GNS3 Download: https://gns3.com/ GNS3 Support (Go here if you need help): https://gns3.com/community
Views: 20606 David Bombal
GNS3 Talks: The CLI is dead! What are you going to do about it?
 
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The CLI is dead! The API is cool. By 2020, only 30% of network operations teams will use the CLI as their primary interface. This is according to Gartner. What are you going to do about it?. Get $200 worth of network software for free here: https://goo.gl/613TUF
Views: 6338 David Bombal
GNS3 Talks: Ostinato Packet Generator and GNS3 - download, install and configure (Ostinato Part 1)
 
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Ostinato - Network Traffic Generator Part 1. Easily create packets for testing in your GNS3 network. Free software worth $200: https://goo.gl/613TUF Ostinato is a packet crafter, network traffic generator and analyzer with a friendly GUI. Also a powerful Python API for network test automation. Craft and send packets of several streams with different protocols at different rates. Think of it as “Wireshark in Reverse”.
Views: 12816 David Bombal
CCNA VLOG #004: IP default gateway versus default route
 
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Why do you configure ip default-gateway on a switch? What about a static default route? When do you use which? My full course is here: http://www.ccnax.com Subscribe to learn how to pass the CCNA 200-125 exam. Also includes content for the ICND1 100-105 and ICND2 200-105 exams. What do you want to learn? Let me know via the comments.
Views: 3596 David Bombal
GNS3 Virtualization questions: Local server vs Virtualbox vs VMware - which is best? (Part 1)
 
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In this video we discuss the various options you have for running GNS3. There are multiple virtualization platforms that you can use: VirtualBox, VMware Workstation Pro, VMware Workstation Player, VMware ESXi and the Cloud. Which is best? Which is required? Get $200 worth of network software for free here: https://goo.gl/613TUF
Views: 3704 David Bombal
GNS3 Talks: Building insane (large scale) GNS3 networks (Part 1). What do you want to see?
 
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This is the start of my video series: Building insane (large scale) GNS3 networks. I plan to continue adding more and more devices to the topology until..... well.... until I am done. What do you want to see in the network?
Views: 6221 David Bombal
Linux for Network Engineers: You need to learn Linux! (Prt 1) Demo of Cisco 9k, Arista EOS & Cumulus
 
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Get the course here for $10: GNS3 Academy: https://bit.ly/2HuEY80 Udemy link: https://bit.ly/2EFyHU8 davidbombal.com: Part of subscription http://www.davidbombal.com Linux: It is important that you as a network engineer learn Linux. In this video I demonstrate Linux shells running on a Cisco Nexus (NX-OS) 9000 /9k and Arista vEOS and Cumulus Linux all running in GNS3. Get $200 worth of network software for free here: https://goo.gl/613TUF
Views: 6952 David Bombal
CCIEPython: Learn Python, Netmiko, NAPALM, Paramiko, SSH, Telnet and much more! Network automation!
 
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Udemy: Get the course for $10 here: https://goo.gl/QYC988 GNS3 Academy: Get the course for $10 here: https://goo.gl/vnZJhg More free Python videos here: https://www.youtube.com/playlist?list=PLhfrWIlLOoKPn7T9FtvbOWX8GxgsFFNwn Learn Python programming with David Bombal. For much more, go to http://www.cciepython.com Learn how to automate your networks using Python. I want to welcome you to this Python for networking course. This course is not like other Python courses. In my experience I found that a lot of Python courses are trying to make networking engineers Python developers. They concentrate very heavily on Python theory and they spend a lot of time teaching you the ins and outs of Python instead of getting you to use Python to configure network devices as quickly as possible. That’s what I’m going to do in this course. This course consists of multiple portions and leverages GNS3 to create multiple network topologies that you can configure and automate through Python. In the next video I am going to show you how you can very quickly start configuring network devices using Python. One of the biggest stumbling blocks when learning network automation is the barrier or huge mountain that Network Engineers think they have to climb before they can configure network devices. That’s not true. Within 20 minutes in the next video, I’ll show you how you can configure OSPF and loopback interfaces on a Cisco IOSv router. The video after that will show you how to configure VLANs and you’ll learn how to configure Cisco network devices using telnet as well as SSH. In the upcoming videos, we’ll use multiple modules and leverage the work done by others. Don’t reinvent the wheel, leverage the hard work that others have done and made freely available through Python. We’ll use tools such as the telnet library, Paramiko, Netmiko, NAPALM and other s to automate the configuration of the multiple networks. Again, I’m leveraging GNS3, in most of these videos you don’t have to use GNS3. You could use real world physical equipment if you wanted to. The advantage however of GNS3 is that, you can build virtual networks very quickly on your laptop. You can learn Python and configure Python networks wherever you are. You just need your laptop and GNS3 running on your laptop. It’s also a safe place to be. Your GNS3 network is not your live network. So you won’t inadvertently break a production network by running a Python script on your GNS3 network. It’s a safe place to learn. Once I’ve shown you how to quickly configure networks using Python, there is a theory section. I’m going to take you from the basics of Python to more complex topics. So if you want to take your Python knowledge further, and learn the ins and outs of Python, the Theory Section will give you that knowledge. And then there’s a section providing more complex topologies, more complex scripts and scripts using a software developer approach to writing code. As a saying goes, Rome wasn’t built in a day; Babies don’t run marathons. And in the same way, don’t try and conquer the world of Python in one day. Learn the basics, make mistakes, try again and constantly increase your knowledge. So again, welcome to my Python course! Please provide feedback. Based on the feedback and suggestions I receive, I’ll add more content or just the content. Don’t forget to subscribe to my YouTube channel. I’m always posting new content to my YouTube channel. So if you got suggestions of content to add to this course, or just other general content that you would like to see, let me know and I’ll either add it to this course or add it to my YouTube channel. I want to wish you all the very best in your journeys in Network Programmability and Network Automation. It’s the future and the future is here for you to grab it and change your future to improve your job prospects and ensure that you don’t become a relic of the common line interface. The world is changing and we need to keep on learning to improve our skill set and take hold of bigger opportunities in the industry. With that said, I want to wish you all the very best in your journeys with Python, Network Programmability and Network Automation.
Views: 55185 David Bombal
CCNA 210-060 CICD - CUCM Pickup Groups - CCNA Collaboration training
 
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Learn how to pass the CCNA Collaboration, CICD 210-060 exam with CCIE David Bombal. Get this and more from http://www.ConfigureTerminal.com In this video David shows you how to set up pickup groups in the Cisco Unified Call Manager (CUCM). We look at pickup groups, group pickup, other pickup (opickup), auto call pickup and directed call pickup.
Views: 24030 David Bombal
Python 3 Network Automation is here! Learn how to automate your networks!
 
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Learn how to automate networks using Python version 3. GNS3 Academy: Get the course for $10 here: https://goo.gl/vnZJhg Udemy: Get the course for $10 here: https://goo.gl/QYC988 DavidBombal.com: Course is included in your subscription: http://www.davidbombal.com Networking is changing! Don't get left behind! You learning network automation and network programmability using Python are critical for your future as a network engineer.
Views: 10782 David Bombal
CCIEPython: What should I learn? Network Automation?
 
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Learn Python programming with David Bombal. For much more, go to http://www.cciepython.com More free Python videos here: https://youtu.be/IhroIrV9_7w Learn how to automate your networks using Python.
Views: 2123 David Bombal
GNS3 Talks: Network Automation Docker Container (Part 1): Python, Netmiko, Pyntc and Ansible
 
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A new Network Automation Docker appliance is now available in the GNS3 marketplace. It solves an issue a lot of people have been asking about - how to keep Python installed when you restart GNS3. This container has Python, Netmiko, pyntc and Ansible preinstalled. Get $200 worth of network software for free here: https://goo.gl/613TUF
Views: 5194 David Bombal
Solar-Putty: Free Multi-tab GNS3 terminal emulation! The new Putty for GNS3! (Part 1)
 
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FREE download: http://bit.ly/solarputty The wait is over! Professional grade CLI access is now free, including: - Tabs - Native GNS3 integration - Login scripts - Modular credential repository - Combined search and quick connect - SSH, Telnet, SCP, and SFTP support - Windows search integration Key Features - Manage multiple sessions from one console with a tabbed interface - Save credentials or private keys to any session for easy login - Automate all scripts you’re using when connection is established - Find your saved session easily thanks to Windows Search integration - No installation is needed Tabs: Use the credentials tab to store your most commonly used credentials. When you create a new session, reference that stored credential rather than typing it out again. Update all session credentials by updating the stored credential. Search or Quick Connect: Did you notice the field you use to search for a saved session can also be used to quick connect? Try entering an IP and port, like 10.199.4.12:22 and pressing enter. Colors: Colors can be used to remind you which sessions go to production gear, which data center your connected to, or anything else you like. Set the color when creating a new session or editing an existing session. Key shortcuts: Keep your hands on the keyboard because mice are slow! Ctrl + t: Open a new tab Ctrl + w: Close tab Alt+F4: Exit Solar-PuTTY Scripts - Automated login, bulk configuration: Scripts are executed immediately after login. You can use scripts to automatically enter enable/privileged exec. You can also create longer scripts to make configuration changes to a device and then run the script on several sessions. Just like credentials, these are stored and can be referenced by any session. Session - Export and import: Whether you’re in a classroom or in the office it’s a pain to share connection information verbally. Instead, use the three dots in the top left of Solar-PuTTY to export your sessions and have your pal import them. Less talk, more results. Tags - Better than folders: Tags are a great way to organize your sessions without having to worry about hierarchy or overlap. We like to use them for location (“Dallas Datacenter”) and roles (“Border Router”), but you can use them for anything you like. Create tags in Settings (Ctrl + s). Apply tags to any sessions. Tags are searchable! Session Logging - Know your work: Dreaming of a CCIE? Review your logs after a lab and assess opportunities where you can improve in terms of accuracy, speed, order of operations; all important for the CCIE. Bad outage caused by a config? Prove exactly what you did or did not do. Better yet, prove how you fixed it! Session logging can be enabled when you create a new session or by editing an existing session.
Views: 6550 David Bombal
GNS3 Talks: Python for Network Engineers with GNS3 (Part 2) - Configure VLANs on switches.
 
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Udemy: Get the course for $10 here: https://goo.gl/QYC988 GNS3 Academy: Get the course for $10 here: https://goo.gl/vnZJhg More free Python videos here: https://youtu.be/IhroIrV9_7w Learn Python programming with GNS3. In this series of videos I will show you how you can quickly and easily program Cisco networks using Python. In this video we program a Cisco IOSvL2 switch with VLANs by using Python on an Ubuntu Docker container. Script used in this video is available on GitHub here: https://github.com/davidbombal/pythonvideos/blob/master/pythonS1script1.py This is one of multiple videos teaching you network programmability using Python and GNS3. might take on the learning programming or any other technology is to just do it,try it make mistakes, pick yourself up and try again. Don't try and do it perfectly on the first run. Create some code and then iterate or improve and refine your code as you go along. GNS3 makes this process very easy. In the previous video, I configured the router using a Python script. This is what our Python script looks like. We programmatically configured the loopback addresses and OSPF on the Cisco IOS of the router. Now let's configure the switch. The router was given this IP address through DHCP. What I'll do is configure the switch manually on the SVI so IP address question mark. We have to specify the IP address here,so we'll use 72. So hostname switch1. We need to configure login details, so I'll set an enable password a Cisco,I'll set up a username of David, With a password of Cisco and on the vty lines, I'm going to use the command log in local and transport input all. So let's manually test that telnet works a telnet to the IP address of the switch. Log in with our username of David, password of cisco enable put password in, we can login, so we've proven that telnet works on the switch. On the switch at the moment, show VLAN brief shows us that only the default VLANs are configured. Now previously we configured this Python script. What I'm going to do now is copy this Python script to another script called pythonS1script1 As I said in the previous video, we are not trying to do everything perfectly here we are trying to get started and we'll iterate and improve as we go along. So let's use an nano to edit that script. In this case the IP address of the switch is 192.168.122.72 We'll be prompted for our username and our password. We're going to telnet to that host. we are looking for a username and password prompt. So let's confirm that that's what we're going to see. We are prompted for a username so that's correct. We're prompted for a password so that's correct. So the script will correctly look for and then enter those values. We're going to send the enable command to the switch enter a password of cisco, then type conft and we'll configure a VLAN of 2. Now you can as always refine this and improve it but I'm going to type exit and then create VLAN 3 and then exit and let's get rid of all of this. So let's control K that control U, paste it back control K, control U, control U. Now you could if you preferred just do this copy that and paste it in. So this creates VLANs 2, 3, 4, 5 6 control X, save the configuration. Now again before I run the script, notice we only have the default VLANs configured and what I'll do now is type pythonS1script1 user name is David password is cisco. This is what was configured on the switch. We can see in the output of the switch that it was configured via telnet show VLAN. Notice the VLANs have been added to the VLAN database. VLAN 2, 3, 4, 5, 6 have been added it was as simple as that to use Python to configure a network switch. Now what we could do here is an example is set a description. So Python VLAN2 as an example control X save the script, run it again and hopefully what we should see in the output here show VLAN. What's nice about the output of the script is we see that there's a problem I used the wrong command. So first manually test command is not supported so manually test and then automate. So let's do that again. The description is actually the name command save that, run the script again. I didn't configure that manually it was configured by the scripts to show VLAN, notice the name has changed. So let's do that for the other VLANs, control K, control U, control U, control U, control U, control U. This is one of the reasons why you want to use variables and the loops because it saves a lot of time doing this manually but we'll leave that for a different script. So python pythonS1script1 user name is david, password is cisco. We see what was configured and if we type show VLAN we can see the configuration on the switch. This is the script that we created.
Views: 38528 David Bombal
GNS3 Talks: IOSvL2 switching appliance import & configuration
 
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The best way to set up switching in GNS3 is to use the GNS3 appliance. This video shows you how to import the GNS3 IOSvL2 appliance and get it running. More videos available from David Bombal's GNS3 Talks. Get $200 worth of network software for free here: https://goo.gl/613TUF
Views: 11865 David Bombal
GNS3 2.0 Install on Windows 10 (Part 1). GNS3 GUI install and troubleshooting.
 
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This video explains and demonstrates how to install the GNS3 Windows GUI on a Windows 10 PC. My full CCNA course is here: http://academy.gns3.com/p/the-complete-networking-fundamentals-course-your-ccna-start Get $200 worth of network software for free here: https://goo.gl/613TUF What do you want to learn? Let me know via the comments.
Views: 94522 David Bombal
Spanning Tree configuration on HP Comware switches part 2
 
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Spanning Tree configuration on HP Comware switches part 2 http://configureterminal.com/spanning-tree-configuration-on-hp-comware-switches/ Spanning Tree configuration on HP Comware switches In this video from our HP AIS Y30 training course, David Bombal demonstrates the following on HP Comware (A-Series / H3C ) Switches:
Views: 11289 David Bombal
Spanning Tree configuration on HP Comware switches part 1
 
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Spanning Tree configuration on HP Comware switches part 1 http://configureterminal.com/spanning-tree-configuration-on-hp-comware-switches/ Spanning Tree configuration on HP Comware switches In this video from our HP AIS Y30 training course, David Bombal demonstrates the following on HP Comware (A-Series / H3C ) Switches:
Views: 43298 David Bombal
GNS3 Talks: Python for Network Engineers with GNS3 (Part 7) - How to write better code and styles
 
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Udemy: Get the course for $10 here: https://goo.gl/QYC988 GNS3 Academy: Get the course for $10 here: https://goo.gl/vnZJhg More free Python videos here: https://www.youtube.com/playlist?list=PLhfrWIlLOoKPn7T9FtvbOWX8GxgsFFNwn Learn Python programming with GNS3. In this series of videos I will show you how you can quickly and easily program Cisco networks using Python. In this video we discuss how to write better code with the Python Style guide: https://www.python.org/dev/peps/pep-0008/ Transcription: This is one of multiple videos teaching you network programmability using Python and GNS3. This is a very useful document to breed PEP 8 - Style Guide for Python Code. A lot of people get hung up about how the way code is written and you'll often find debates and people flaming one another when code isn't written as neatly or as well as some people think it should be. Now again using the idea of get started and learn, you can always improve the readability of your code and improve as you go along. But this is a document worth reading to try and write better code. So one of the key insights taught here is that code is: read much more often than it is written so the idea of these guidelines is to improve the readability of code and make it consistent. So they say here style guide is about consistency, consistency with a style guide is important but consistency within a project is more important. Consistency within one module or function is the most important. If you don't know what a module is or a function, don't worry we'll talk about them later. But notice there are always exceptions. Know when to be inconsistent. Sometimes Style Guide recommendations are just not applicable. When in doubt, use your best judgment. Have a look at other examples and decide what looks best. Don't hesitate to ask. They give you some good reasons to ignore a particular guideline. So as an example ignore a guideline if your code is less readable. You may have to ignore the style guide to be consistent with old code. But you have some recommendations. Indentation is very important in Python so use 4 spaces per indentation level. They give you some recommendations for continuation lines. So as an example, this is good, but this is not good. There’s a section about tabs or spaces. Spaces are preferred, tabs should only be used to remain consistent with code that is already indented with tabs. Python 3 disallows the mixing of tabs and spaces for indentation. Python 2 code indented with a mixture of tabs and spaces should be converted to spaces exclusively. You can use the -t option with Python 2 to issue warnings about code that illegally mixes tabs and spaces. You can use the -tt option to make those warnings errors. These options are highly recommended. The maximum line length is 79 characters that is a recommendation based on historical reasons. So for flowing a long blocks of text with fewer structural restrictions, the line length should be limited to 72 characters that will allow you to open windows side-by-side so you can have multiple code windows open side-by-side. There are a lot of other recommendations in this document and as you code and are unsure about how to space or how to indent or how to write your code, refer back to this document. I've linked at it below this video. Here's one about string quotes. In Python single quoted strings and double quoted strings are the same. This PEP does not make a recommendation for this. Pick one rule and stick to it. When a string contains single or double quote characters, however use the other one to avoid backslashes in the string to improve readability. Here's some pet peeves about white space. So avoid white space if not needed. So this is good, this is not good, this is good, this is not good, this is good, this is not good and so forth and so on. To improve your code, have a look at to the style guide. When in doubt, refer to this. Lots of recommendations are provided here. I hope you enjoyed it this video. If you did, please like it and please subscribe to my YouTube channel. I wish you all the very best!
Views: 11113 David Bombal
GNS3 2.0 Install on Windows 10 (Part 3). Cisco network using local GNS3 server: Dynamips & Cisco.
 
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GNS3 2.1 videos here: https://goo.gl/MLXkG7 This video explains and demonstrates how to install the GNS3 Windows GUI on a Windows 10 PC. My full CCNA course is here: http://academy.gns3.com/p/the-complete-networking-fundamentals-course-your-ccna-start GNS3 Install Part 1: https://youtu.be/4ukwpvCuxHI GNS3 Install Part 2: https://youtu.be/6tmfzO9Q2cI Get $200 worth of network software for free here: https://goo.gl/613TUF What do you want to learn? Let me know via the comments.
Views: 37971 David Bombal
Free Cisco Network Programmability resources to become superhuman: Python, NETCONF, Labs and more
 
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Learn about network programmability and automation with free training from Cisco Devnet. There are a lot of resources available to learn Python, NETCONF, YANG, APIC-EM, Cisco ACI and lots more! A Network Engineer’s Journey in Programmability: https://goo.gl/uh4ve4 Become a superhero like Carl! DEVNET-1725: How to Be a Network Engineer in a Programmable Age: https://goo.gl/ppgMny DEVNET-1040 - Introduction to Python Network Programming for Network Architects and Engineers - Part 1: The Basics: https://goo.gl/WV63CW Network on DevNet: https://developer.cisco.com/site/networking/ DevNet sandbox: https://developer.cisco.com/site/devnet/sandbox/ DevNet Learning Labs: https://learninglabs.cisco.com/
Views: 5796 David Bombal
CCNA or Python? Developer or Network Engineer? How about a machine augmented network engineer!?
 
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Networking is changing! Questions I often receive are "should I learn python?" or "should I still study for CCNA?"; or "should I study for CCNA or Python?". I think you should study both! Learn networking. Learn programming. Become a machine augmented network engineer. The CLI is dead: https://youtu.be/FgKuy9QElQU Next Gen Engineers: https://www.linkedin.com/pulse/next-gen-engineers-chloe-campbell SDN: Cisco Demystifying SDN for the Network Engineer: Need Encouragement Getting with the Program? https://youtu.be/giGXCZ2yn6Q
Views: 31180 David Bombal
Linux for Network Engineers: You need to learn Linux! Never do this!
 
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GNS3 Academy: https://bit.ly/2HuEY80 Udemy link: https://bit.ly/2EFyHU8 DavidBombal.com: Part of subscription http://www.davidbombal.com Linux: It is important that you as a network engineer learn Linux. My Linux for Network Engineers course will teach you why. It will also teach you the fundamentals of Linux. Never use the sudo rm -rf / command! Well, unless you are really sure you want to. This will delete your entire file system. Special price for only $10 here: GNS3 Academy: https://bit.ly/2HuEY80 Udemy link: https://bit.ly/2EFyHU8 DavidBombal.com: Part of subscription http://www.davidbombal.com
Views: 3288 David Bombal
Life can be short! Black Mamba at the Airbnb! Use your time effectively: CCNA | Time Management
 
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Is your time important? Are you using your time effectively? Life is short. Make the most of your time while you can! Please let me know if you like these kinds of lifestyle videos? Are you interested in learning more about me and what I get up to? Or do you just want technical content? Equipment used: 1) iPhone XS Max 2) DJI Mavic Pro 3) Joby GorillaPod 4) Shure MV88 Digital Stereo Condenser Microphone 5) Tripod - NO fancy DLSRs used... just an iPhone :) #CCNA #CCNP #Motivation
Views: 1811 David Bombal
GNS3 2.0 Install on Windows 10 (Part 2). Local server network. GNS3 GUI, VPCS, Hub network.
 
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This video explains and demonstrates how to install the GNS3 Windows GUI on a Windows 10 PC. My full CCNA course is here: http://www.ccnax.com Get $200 worth of network software for free here: https://goo.gl/613TUF What do you want to learn? Let me know via the comments.
Views: 50687 David Bombal
GNS3 2.1 Install and configuration on Windows 10 (Part 9): Cisco VIRL IOSv import into GNS3
 
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Learn how to download and import Cisco VIRL images into GNS3. This video shows you how to download IOSv images into GNS3 and build a topology of Cisco IOSv routers running in the GNS3 VM. This is one of multiple videos showing you how to install and configure GNS3 2.1 on Windows. This video discusses various misunderstandings people have about GNS3 and best practices for using GNS3 today.
Views: 9045 David Bombal
GNS3 Talks: AAA Docker Appliance: Easy TACACS & RADIUS GNS3 servers! Part 1
 
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GNS3 now has a AAA Docker Container. This makes it really easy to add RADIUS and TACACS servers to your GNS3 topologies! For lots more content, visit http://www.davidbombal.com - learn about GNS3, CCNA, Packet Tracer, Python, Ansible and much, much more. Two prominent security protocols used to control access into networks are Cisco TACACS+ and RADIUS. The RADIUS specification is described in RFC 2865 leavingcisco.com, which obsoletes RFC 2138 leavingcisco.com. Cisco is committed to supporting both protocols with the best of class offerings. It is not the intention of Cisco to compete with RADIUS or influence users to use TACACS+. You should choose the solution that best meets your needs. This document discusses the differences between TACACS+ and RADIUS, so that you can make an informed choice. Cisco has supported the RADIUS protocol since Cisco IOS® Software Release 11.1 in February 1996. Cisco continues to enhance the RADIUS Client with new features and capabilities, supporting RADIUS as a standard. Cisco seriously evaluated RADIUS as a security protocol before it developed TACACS+. Many features were included in the TACACS+ protocol to meet the needs of the growing security market. The protocol was designed to scale as networks grow, and to adapt to new security technology as the market matures. The underlying architecture of the TACACS+ protocol complements the independent authentication, authorization, and accounting (AAA) architecture. RADIUS uses UDP while TACACS+ uses TCP. TCP offers several advantages over UDP. TCP offers a connection-oriented transport, while UDP offers best-effort delivery. RADIUS requires additional programmable variables such as re-transmit attempts and time-outs to compensate for best-effort transport, but it lacks the level of built-in support that a TCP transport offers: TCP usage provides a separate acknowledgment that a request has been received, within (approximately) a network round-trip time (RTT), regardless of how loaded and slow the backend authentication mechanism (a TCP acknowledgment) might be. TCP provides immediate indication of a crashed, or not running, server by a reset (RST). You can determine when a server crashes and returns to service if you use long-lived TCP connections. UDP cannot tell the difference between a server that is down, a slow server, and a non-existent server. Using TCP keepalives, server crashes can be detected out-of-band with actual requests. Connections to multiple servers can be maintained simultaneously, and you only need to send messages to the ones that are known to be up and running. TCP is more scalable and adapts to growing, as well as congested, networks.
Views: 3702 David Bombal
Overlay SDN Introduction: Nuage Networks VSP Lab Topology with GNS3
 
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Learn about Overlay SDN Solutions, also called Virtual Networks with GNS3 and Nuage Networks. Multiple Hypervisor - ESXi and KVM demos with hardware VTEPs. Nuage Networks Virtualized Services Platform (VSP) provides software-defined networking (SDN) and policy-based automation for cloud deployments. Designed for large enterprises and service providers, it supports clouds of all sizes and architectures, from datacenter private clouds to large enterprise wide area networks (WANs) and some of the largest public clouds in the world. You can use Nuage Networks VSP as a virtual overlay network platform for all your existing virtual and physical server and network resources. This open SDN and SD-WAN platform helps you avoid vendor lock-in. It requires no proprietary or purpose-built hardware. And it supports all major virtualization and cloud management platforms, from Docker containers and traditional virtual machines to OpenStack and CloudStack.
Views: 6092 David Bombal
GNS3 Talks: Learn Linux with Cumulus Linux and GNS3 (Part 1). Ideal for networkers to learn Linux.
 
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GNS3 Academy: https://bit.ly/2HuEY80 Udemy link: https://bit.ly/2EFyHU8 DavidBombal.com: Part of subscription http://www.davidbombal.com Learn Linux with GNS3 and Cumulus Linux. This is a great way to get comfortable with the Linux CLI, but also learn about whitebox switching and other technologies at the same time.
Views: 5402 David Bombal
GNS3 Talks: How to import Docker containers into GNS3: your own or others available on Docker Hub.
 
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This is one of multiple videos discussing GNS3 related topics. In this video we discuss importing a Docker container into GNS3. My full CCNA course is here: http://academy.gns3.com/p/the-complete-networking-fundamentals-course-your-ccna-start Docker, SDN, Open vSwtich and more: https://www.youtube.com/playlist?list=PLhfrWIlLOoKPmleLDYajDFCzrgFeRRvjX Get $200 worth of network software for free here: https://goo.gl/613TUF Subscribe to learn how to pass the CCNA 200-125 exam. Also includes content for the ICND1 100-105 and ICND2 200-105 exams. What do you want to learn? Let me know via the comments.
Views: 7075 David Bombal
GNS3 2.0 Architecture and schema Part 2: Emulators and virtualization
 
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What are the core components of GNS3? Does GNS3 have a schema? This is part 2. Free software worth $200: https://goo.gl/613TUF GNS3 2.0 Architecture and schema Part 1: https://youtu.be/oh6ptNPaQ-k GNS3 VM Integration Video: https://youtu.be/plgCr4Rbwz8 GNS3 Download: https://gns3.com/ GNS3 Component selection options (scroll down to "Here is a brief description of software" heading: https://goo.gl/zv5cFe GNS Support (Go here if you need help): https://gns3.com/community
Views: 1594 David Bombal

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