PingLabz is a networking education site for engineers, sysadmins, and IT professionals who want production-realistic Cisco content - not certification-mill regurgitation. Cluster pillars on the protocols that run real enterprise networks, hands-on labs with downloadable Cisco Modeling Labs topologies, and printable field-reference PDFs you can tape to your monitor. Everything written with one rule: if it would not survive a code review on a real Cisco IOS XE 17.x device, it does not ship here.
What you will find here
The site is built around four content types. Together they cover the topics a working network engineer hits in their first decade of practice.
Cluster pillar guides
Long-form complete-guide treatments of fourteen networking topics: BGP, OSPF, VLANs and Layer 2 Switching, Spanning Tree, 802.1X and NAC, Wireless and Catalyst 9800, SD-WAN, QoS, EIGRP, MPLS, FHRP (HSRP/VRRP/GLBP), IPv6, GRE, and Cisco ASA. Each pillar has 30 to 60 supporting deep-dive articles linked from the cluster index.
The CCNA Labs library
Sixty hands-on labs covering the entire Cisco CCNA 200-301 exam blueprint, each with a downloadable Cisco Modeling Labs (CML) topology .yaml file and a starter config bundle. Five labs are free preview; the rest are part of a PingLabz Pro membership at $19/month or $149/year. The labs are organized into five pillars matching the official CCNA exam domains: Network Fundamentals, Network Access, IP Connectivity, IP Services, and Security Fundamentals.
Field-reference PDFs
Multi-page printable cheat-sheets for the most-asked-about clusters. Three are live: BGP Field Reference, OSPF Field Reference, and the new Cisco ASA Field Reference. Each is a 9-page print-ready PDF with quick-reference tables, real lab captures from CML, troubleshooting decision trees, and copy-paste config templates. Free with email signup.
Deep-dive articles
Several hundred articles linked from the cluster pillars - each one a focused single-topic deep-dive (e.g. "BGP path attributes", "OSPF DR/BDR election", "VLAN hopping defense"). Use the cluster pillar pages above as the index; search is also available.
What makes this different
Three things separate PingLabz from the rest of the networking education space:
- Real captures, not synthetic. Every
showcommand output you read in a PingLabz article was captured from a working lab - usually a Cisco Modeling Labs IOL-XE 17.16 router. Where output is intentionally illustrative (not captured from the lab), it is clearly labeled. No fabricated CLI dressed up as evidence. - Modern Cisco IOS XE 17.x syntax. A lot of CCNA and CCNP material on the internet is from 2010-2015 and uses IOS 12.x / 15.x syntax. PingLabz uses current IOS XE syntax throughout, and notes legacy alternatives where they differ.
- Standardized lab IP scheme. All labs across the site use the canonical PingLabz lab IP scheme:
10.255.0.xloopbacks,10.30.30.0/30transit links,10.20.0.0/24LANs,192.0.2.0/30for inter-AS / public-internet simulation. The labs you do for OSPF use the same addresses as the labs you do for QoS or NAT. Concepts compound instead of resetting every time.
Who runs PingLabz
PingLabz is written by Alex, a working network engineer with hands-on time across Cisco enterprise gear, ISP environments, and modern multi-vendor data centers. The site is independent - no advertising, no sponsored content, no affiliate links. Revenue comes from PingLabz Pro memberships, which is what funds the writing and the Cisco Modeling Labs infrastructure that backs every lab.
Site started in 2022 as a single-author networking blog. The 60-lab CCNA Labs library and the field-reference PDF series launched in 2026 alongside the Pro membership tier.
How to engage
- Read for free. Every cluster pillar and most deep-dive articles are open. No paywall on the theory content.
- Sign up free at the signup portal for the field-reference PDFs and the newsletter. No card required for free signup.
- Subscribe to Pro at $19/month or $149/year for the full 60-lab CCNA library, the downloadable CML topologies, the config bundles, and every future paid lab and PDF.
- Reach out at contact@pinglabz.com if you have questions, corrections, suggestions, or want to discuss content partnerships. See the contact page for details.
The standards behind every post
A few editorial rules I keep:
- No synthetic or fabricated CLI captures presented as real. Where output is illustrative, it is labeled as such.
- Every config example uses current Cisco IOS XE syntax (17.x). Legacy syntax is noted where it diverges.
- Cross-links go to the most relevant prior article. The site is a connected graph, not a flat collection.
- No em dashes (a personal style preference). No buzzword filler. No "in conclusion" paragraphs.
- If you find an error, please tell me. Corrections ship within 48 hours.
Thanks for reading.