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![[DAY#8 PyATS Series] Parsing show version on Cisco/Arista/Paloalto/Fortigate Using pyATS [Python for Network Engineer]](https://networkjourney.com/wp-content/uploads/2025/07/DAY8-PyATS-Series-Parsing-show-version-on-Cisco-Ping-Tests-Using-pyATS-for-Cisco-Python-for-Network-Engineer-1.png)
[DAY#8 PyATS Series] Parsing show version on Cisco/Arista/Paloalto/Fortigate Using pyATS [Python for Network Engineer]
Introduction: Why Parsing show version Matters in Cisco Networks When it comes to validating OS versions, uptime, model information, and license status across multiple vendors, the show version command remains a universal checkpoint. Whether you’re managing Cisco routers, Arista switches, Palo Alto firewalls, or FortiGate […]
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![[DAY#7 PyATS Series] Learning Routing Protocols: Learn OSPF, Learn BGP (Ping Tests) Using pyATS for Cisco [Python for Network Engineer]](https://networkjourney.com/wp-content/uploads/2025/07/DAY7-PyATS-Series-Learning-Routing-Protocols-Learn-OSPF-Learn-BGP-Ping-Tests-Using-pyATS-for-Cisco-Python-for-Network-Engineer-1.png)
[DAY#7 PyATS Series] Learning Routing Protocols: Learn OSPF, Learn BGP (Ping Tests) Using pyATS for Cisco [Python for Network Engineer]
Introduction on the Key Points In today’s deep dive, we’re shifting gears from basic connectivity to something every network engineer must master — dynamic routing protocols. In the real world, we don’t hardcode routes between every single device. That’s where protocols like OSPF and BGP […]
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![[DAY#1 PyATS Series] What Is PyATS & Genie? Why Vendor‑Agnostic Testing? (Ping Tests) Using pyATS (Cisco/Arista/Paloalto/Fortigate) [Python for Network Engineer]](https://networkjourney.com/wp-content/uploads/2025/07/DAY1-PyATS-Series-What-Is-pyATS_Genie-Why-Vendor‑Agnostic-Testing-Ping-TestsPython-for-Network-Engineernetworkjourney.png)
[DAY#1 PyATS Series] What Is PyATS & Genie? Why Vendor‑Agnostic Testing? (Ping Tests) Using pyATS (Cisco/Arista/Paloalto/Fortigate) [Python for Network Engineer]
Introduction on the Key Points Today we dive into pyATS & Genie, Cisco’s powerful testing framework, and explore why vendor‑agnostic testing is no longer a “nice‑to‑have” but an essential skill for every Python for Network Engineer professional. In this article, you’ll learn: By the end, […]
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![Ticket#5 – OSPF Neighbor Stuck in INIT/2WAY – How to Diagnose and Resolve [CCNP ENTERPRISE]](https://networkjourney.com/wp-content/uploads/2025/07/nj-blog-post-Ticket-5.jpg)
Ticket#5 – OSPF Neighbor Stuck in INIT/2WAY – How to Diagnose and Resolve [CCNP ENTERPRISE]
Problem Summary An enterprise network reported intermittent OSPF adjacency issues between two routers in Area 0. Routing updates were not exchanged, leading to blackholing of traffic to remote branches. After multiple resets, the OSPF neighbor relationship remained stuck in INIT or 2WAY states. Ping between […]
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![Ticket#4 – BGP Route Not Installing in RIB – Path Attributes and Fix [CCNP Enterprise]](https://networkjourney.com/wp-content/uploads/2025/07/nj-blog-post-Ticket-4.jpg)
Ticket#4 – BGP Route Not Installing in RIB – Path Attributes and Fix [CCNP Enterprise]
Problem Summary A network engineer noticed that a BGP route was visible in the BGP table (show ip bgp) but not getting installed in the routing table (RIB) on a core router connected to multiple ISPs. Traffic toward the advertised prefix was getting dropped. Despite […]
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![Ticket#3 – VLAN Mismatch: End Users Unable to Reach Gateway – A Real Cisco Fix [CCNP ENTERPRISE]](https://networkjourney.com/wp-content/uploads/2025/07/nj-blog-post-Ticket3.jpg)
Ticket#3 – VLAN Mismatch: End Users Unable to Reach Gateway – A Real Cisco Fix [CCNP ENTERPRISE]
Problem Summary Multiple end-users on the 3rd floor raised a complaint that they were unable to reach the default gateway. They couldn’t access internal resources or the internet. The issue was isolated to a single switch block, while other floors remained unaffected. The NOC team […]
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![Ticket#2 – Server Not Reachable – Tracing Next-Hop Failure and Fix [CCNP ENTERPRISE]](https://networkjourney.com/wp-content/uploads/2025/07/nj-blog-post-Ticket-2.jpg)
Ticket#2 – Server Not Reachable – Tracing Next-Hop Failure and Fix [CCNP ENTERPRISE]
Problem Summary A ticket was raised from the IT Helpdesk reporting that critical application servers hosted in the data center VLAN 130 were not reachable. Multiple users across departments couldn’t access internal services or ping the application server IP 10.130.10.10. This seemed like a routing […]
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![Ticket#1-Enterprise Slowness: High CPU on Core Switch – Step-by-Step Troubleshooting [CCNP ENTERPRISE]](https://networkjourney.com/wp-content/uploads/2025/07/nj-blog-post-Ticket-1.jpg)
Ticket#1-Enterprise Slowness: High CPU on Core Switch – Step-by-Step Troubleshooting [CCNP ENTERPRISE]
Problem Summary A major enterprise customer reported intermittent slowness across multiple departments. Applications were taking longer to respond, voice quality degraded, and video calls were choppy. This issue seemed to affect users connected to different VLANs and floors. The complaint was urgent and escalated to […]
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![The Ultimate IPv6 Troubleshooting Guide: Tools, Tips, and Labs [CCNP ENTERPRISE]](https://networkjourney.com/wp-content/uploads/2025/07/nj-blog-post-ipv6-troubleshooting-guide.jpg)
The Ultimate IPv6 Troubleshooting Guide: Tools, Tips, and Labs [CCNP ENTERPRISE]
If you’ve ever been stuck with “Why isn’t my IPv6 ping working?”, then this blog is for you. Unlike IPv4, IPv6 brings new protocols, new behaviors, and new bugs, which means you need to troubleshoot with fresh eyes and fresh commands. Whether you’re preparing for […]
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![Dual Stack vs Tunneling: Which IPv6 Transition Strategy is Right for You? [CCNP ENTERPRISE]](https://networkjourney.com/wp-content/uploads/2025/07/nj-blog-post-Dualstack.jpg)
Dual Stack vs Tunneling: Which IPv6 Transition Strategy is Right for You? [CCNP ENTERPRISE]
If you’re reading this, you’re probably at that point in your IPv6 learning journey where the real challenge isn’t IPv6 itself—it’s the transition from IPv4. The world isn’t flipping a switch overnight. Most networks still run IPv4, and we need mechanisms to make IPv6 work […]
