![[Day #72 Pyats Series] Multi-vendor pre-change snapshot automation using pyATS for Cisco [Python for Network Engineer]](https://networkjourney.com/wp-content/uploads/2025/08/Multi-vendor-pre-change-snapshot-automation-using-pyATS-for-Cisco.png)
Introduction on the Key Points In modern network operations, change management is not just about pushing configs—it’s about ensuring that changes do not unintentionally break existing services.One of the most powerful strategies to achieve this is pre-change snapshot automation, where you capture the current network […]
![[Day #71 Pyats Series] Create CI/CD pipeline with pyATS (Jenkins + GitLab) using pyATS for Cisco [Python for Network Engineer]](https://networkjourney.com/wp-content/uploads/2025/08/Create-CI-CD-pipeline-with-pyATS-Jenkins-GitLab-using-pyATS-for-Cisco.png)
Introduction on the Key Points In today’s fast-paced networking world, automation is no longer a luxury—it’s a necessity.When we talk about Python for Network Engineer workflows, pyATS stands out as Cisco’s powerful network testing and validation framework that fits beautifully into a CI/CD pipeline. Imagine […]
![[Day #31 PyATS Series] Detect VLAN Mismatches on Trunk Links Using pyATS for Cisco [Python for Network Engineer]](https://networkjourney.com/wp-content/uploads/2025/08/Day-31-PyATS-Series-Detect-VLAN-Mismatches-on-Trunk-Links-Using-pyATS-for-Cisco.png)
Introduction Detecting VLAN mismatches on trunk links is crucial for maintaining seamless Layer 2 connectivity across a network. A VLAN mismatch can lead to traffic drops, inconsistent broadcast domains, and ultimately network instability. Traditional troubleshooting involves manually logging into each switch and comparing trunk configurations—a […]
![[Day #30 PyATS Series] Checking STP Root Bridge Across Cisco Using pyATS for Cisco [Python for Network Engineer]](https://networkjourney.com/wp-content/uploads/2025/08/Day-30-PyATS-Series-Checking-STP-Root-Bridge-Across-Cisco-Using-pyATS-for-Cisco.png)
Introduction Spanning Tree Protocol (STP) is a fundamental Layer 2 protocol used to prevent loops in switched networks. One critical aspect of STP is determining the Root Bridge, which plays a central role in defining the active forwarding paths. Manually verifying STP root bridges across […]
![[Day #29 PyATS Series] Loopback IP Reachability Validation (Ping Tests) Using pyATS for Cisco [Python for Network Engineer]](https://networkjourney.com/wp-content/uploads/2025/08/Day29-PyATS-Series-Loopback-IP-Reachability-Validation-Ping-Tests-Using-pyATS-for-Cisco.png)
Introduction In large-scale enterprise and service provider networks, Loopback interfaces play a crucial role in routing protocols, management access, and network stability. Ensuring continuous reachability of loopback IPs is a key part of proactive network monitoring. Manual ping testing can be tedious and prone to […]
