![[Day#1c PyATS Series] Why pyATS? Why not just stick to Netmiko / NAPALM / Paramiko which are easier? [Python for Network Engineer]](https://networkjourney.com/wp-content/uploads/2025/07/Day1c-PyATS-Series-Why-pyATS-Why-not-just-stick-to-Netmiko-NAPALM-Paramiko-which-are-easier-Python-for-Network-Engineer.png)
Many network engineers ask: “Why should I learn pyATS when simpler options like Netmiko or NAPALM already exist?” Let’s break it down. What Netmiko and NAPALM Offer Netmiko and NAPALM are excellent tools for: These libraries are lightweight and ideal for ad-hoc automation or one-off […]
![[Day#1b PyATS Series] Step-by-Step: Install pyATS in PyCharm (Ubuntu) [Python for Network Engineer]](https://networkjourney.com/wp-content/uploads/2025/07/Day_1b-PyATS-Series-Step-by-Step-Install-pyATS-in-PyCharm-Ubuntu-Python-for-Network-Engineer.png)
If you’re exploring Python for Network Engineers, mastering tools like pyATS is a game-changer for automating network testing and validation. This guide walks you through setting up pyATS in PyCharm on Ubuntu, step by step, so you can build robust network automation workflows with confidence. […]
![Ticket#10 - NAT Overload Failure: Why Users Couldn't Access the Internet – A Real Fix [CCNP ENTERPRISE]](https://networkjourney.com/wp-content/uploads/2025/07/nj-blog-post-Ticket-10.jpg)
Problem Summary In a mid-sized enterprise, users across VLANs suddenly reported that they couldn’t browse the internet or access external services. While internal services like file sharing and internal DNS were operational, anything beyond the firewall was unreachable. Symptoms Observed Root Cause Analysis Initial checks […]
![Ticket#9 - WAN Flap Detection: DMVPN Phase 2 Tunnel Up/Down Issue Fixed [CCNP Enterprise]](https://networkjourney.com/wp-content/uploads/2025/07/nj-blog-post-Ticket-9.jpg)
Problem Summary The enterprise monitoring tool detected flapping tunnels between remote branch routers and the HQ hub.Ticket Priority: HighIssue: DMVPN Phase 2 Tunnel intermittently goes UP/DOWN, causing loss of reachability to HQ and apps like VoIP. Symptoms Observed Symptom Description Tunnel state flapping Tunnel interface […]
![Ticket#8 - VOIP Choppy Audio – DSCP Marking Mismatch Fixed [QoS Real World] [CCNP ENTERPRISE]](https://networkjourney.com/wp-content/uploads/2025/07/nj-blog-post-Ticket-8.jpg)
Problem Summary Users across multiple floors reported choppy VoIP audio during internal calls. The problem was intermittent but noticeable during peak hours. Symptoms Observed Root Cause Analysis Upon initial inspection, end-to-end ping and traceroute were normal. However, show policy-map interface revealed DSCP marking inconsistencies between […]
![Ticket#7 - Multicast Video Freezes in Conference Room – Troubleshoot IGMP and PIM [CCNP ENTERPRISE]](https://networkjourney.com/wp-content/uploads/2025/07/nj-blog-post-Ticket-7.jpg)
Problem Summary In a conference room, video multicast stream intermittently freezes or buffers during a live broadcast. The network uses multicast for IPTV using: Symptoms Observed Symptom Observed Impact Video Freezing Occurs every 2–3 mins IGMP joins seen But not always registered at the router […]
![Ticket#6 - DHCP Not Working on Access Layer – Troubleshoot Snooping and Relay [CCNP ENTERPRISE]](https://networkjourney.com/wp-content/uploads/2025/07/nj-blog-post-Ticket-6.jpg)
Problem Summary In a mid-sized enterprise campus network, multiple users reported they were unable to get IP addresses from the DHCP server. The issue was isolated to specific access switches connected to VLAN 30. The DHCP server was reachable via Layer 3 on a core […]
![[Day#3 PyATS Series] Installing pyATS & Genie (core, NX-OS, IOS-XR plugins) using pyATS for Cisco](https://networkjourney.com/wp-content/uploads/2025/07/Day3-PyATS-Series-Installing-pyATS-Genie-core-NX-OS-IOS-XR-plugins-using-pyATS-for-Cisco_networkjouney.png)
Introduction on the Key Points In today’s Day #3 of our “101 Days of pyATS (Vendor-Agnostic)” blog series, we focus on setting up the essential components of pyATS by installing the core libraries and vendor-specific plugins such as NX-OS and IOS-XR. These tools are the […]
1. Introduction on the Key Points In the evolving world of network automation, learning how to integrate Python for Network Engineer tasks has become essential. If you’re a Cisco network professional looking to automate testing, validation, or configuration, pyATS (Python Automated Test System) is your […]
![[DAY#6 PyATS Series] Using pyATS CLI tools: pyats learn, pyats parse using PyATS [Python for Network Engineer]](https://networkjourney.com/wp-content/uploads/2025/07/DAY6-PyATS-Series-Using-pyATS-CLI-tools-pyats-learn-pyats-parse-using-PyATS-Python-for-Network-Engineer.png)
Introduction: Your First Step into CLI Magic with pyATS Today’s blog is all about unlocking the CLI power of pyATS, specifically: These tools are a goldmine for Python for Network Engineer workflows, especially when working across vendors like Cisco, Arista, Palo Alto, and FortiGate. By […]
