![[Day #26 Pyats Series] NTP synchronization check (cross-vendor) using pyATS for Cisco [Python for Network Engineer]](https://networkjourney.com/wp-content/uploads/2025/08/NTP-synchronization-check-cross-vendor-using-pyATS-for-Cisco.png)
Introduction on the Key Points In today’s fast-paced and globally distributed enterprise networks, accurate timekeeping is non-negotiable. A few milliseconds of drift between devices can lead to log mismatches, troubleshooting nightmares, and even compliance issues. This is where NTP (Network Time Protocol) synchronization plays a […]
![[Day #36 Pyats Series] Port-channel consistency validation across platforms using pyATS for Cisco [Python for Network Engineer]](https://networkjourney.com/wp-content/uploads/2025/08/Port-channel-consistency-validation-across-platforms-using-pyATS-for-Cisco.png)
Introduction on the Key Points In modern enterprise networks, port-channels (also known as EtherChannels, LAGs, or bundles) are essential for link aggregation, redundancy, and high-throughput architecture between switches, routers, and firewalls. However, one of the most common root causes of inconsistent port-channel states is configuration […]
![[Day #46 Pyats Series] Validate QoS policy configurations using pyATS for Cisco [Python for Network Engineer]](https://networkjourney.com/wp-content/uploads/2025/08/Validate-QoS-policy-configurations-using-pyATS-for-Cisco.png)
Introduction on the Key Points Welcome to Day 46 of the 101 Days of pyATS (Vendor-Agnostic) series! In today’s lab-driven session, we’re focusing on validating QoS (Quality of Service) policy configurations using Cisco’s pyATS and Genie framework. Whether you’re managing enterprise WANs, campus LANs, or […]
![[Day #45 Pyats Series] Multi-vendor VRRP/HSRP failover validation using pyATS for Cisco [Python for Network Engineer]](https://networkjourney.com/wp-content/uploads/2025/08/Multi-vendor-VRRP-HSRP-failover-validation-using-pyATS-for-Cisco.png)
Introduction on the Key Points Welcome back to Day 45 of our “101 Days of pyATS” series, a practical journey into vendor-agnostic automation using Cisco’s pyATS framework! Today, we’re diving deep into failover validation for first-hop redundancy protocols (FHRPs)—VRRP and HSRP—using pyATS and Genie parsers. […]
Introduction on the Key Points Welcome to Day 20 of the 101 Days of pyATS (Vendor-Agnostic) series! Today, we dive into Verification APIs in pyATS, a critical feature for automated network validation. If you’re a Python for Network Engineer enthusiast looking to master network automation, […]
Introduction “Today we wire real-time threat response: when FMC/FTD, Secure Endpoint (AMP), or Stealthwatch flags a compromised host, ISE auto-quarantines it over the network. We’ll use pxGrid for secure event and identity exchange, and ANC for enforcement (dACL / SGT / VLAN). You’ll leave with […]
Introduction Cisco Identity Services Engine (ISE) and Firepower Management Center (FMC) form a powerful threat-centric NAC ecosystem when integrated via pxGrid. But here’s the reality: In production, engineers often struggle with cert trust failures, pxGrid client not connecting, SGT not being seen in FMC, or […]
Introduction Cisco ISE profiling is like giving the NAC engine eyes and intelligence.Without profiling, ISE knows a device only by its MAC or credentials. With profiling, ISE can identify: Profiling Policies and Conditions are the foundation of this process. For network access control to be […]
Introduction Wireless network access control is only as strong as its weakest troubleshooting process. In the real world, even the best-designed Cisco ISE policies fail if engineers cannot quickly diagnose authentication issues, endpoint posture failures, or onboarding errors. Wireless Endpoint Troubleshooting in Cisco ISE is […]
Introduction Guest Wi-Fi is one of the most used features in corporate networks — but also one of the most abused when passwords are poorly managed. Cisco Identity Services Engine (ISE) provides enterprise-grade controls to manage guest credentials in a secure, auditable, and automated manner. […]
