# PingLabz

> PingLabz is a Cisco IOS XE reference blog for network engineers, covering BGP, OSPF, EIGRP, MPLS, VLANs, STP, FHRP, 802.1X, Wireless, SD-WAN, QoS, IPv6, GRE, Cisco ASA, and Nmap. All content is grounded in real Cisco Modeling Labs captures and targets CCNP/CCIE-level depth.

Long-form reference guides with real IOS XE show output, comparison tables, and configuration examples. The site also hosts a paid 60-lab CCNA hands-on library and free browser-based study tools.

## Cluster Pillars

- [BGP: The Complete Guide](https://www.pinglabz.com/bgp/): Border Gateway Protocol fundamentals, path attributes, route manipulation, and eBGP/iBGP design
- [OSPF: The Complete Guide](https://www.pinglabz.com/ospf/): Open Shortest Path First, area types, LSA types, DR/BDR election, and multi-area design
- [EIGRP: The Complete Guide](https://www.pinglabz.com/eigrp/): Enhanced IGRP, DUAL algorithm, named mode, and redistribution
- [MPLS: The Complete Guide](https://www.pinglabz.com/mpls/): Label switching, LDP, VPNv4, and L3VPN design
- [VLANs and Layer 2 Switching: The Complete Guide](https://www.pinglabz.com/vlans-layer-2-switching/): VLANs, trunking, inter-VLAN routing, and Layer 2 design
- [Spanning Tree Protocol: The Complete Guide](https://www.pinglabz.com/spanning-tree-protocol/): STP, Rapid PVST+, MSTP, PortFast, and BPDU Guard
- [FHRP: The Complete Guide](https://www.pinglabz.com/fhrp/): HSRP, VRRP, and GLBP first-hop redundancy protocols
- [802.1X: The Complete Guide](https://www.pinglabz.com/802-1x/): Port-based NAC, EAP methods, RADIUS integration, and Cisco ISE
- [Wireless: The Complete Guide](https://www.pinglabz.com/wireless/): Wi-Fi fundamentals, 802.11 standards, Cisco WLC, and RF design
- [SD-WAN: The Complete Guide](https://www.pinglabz.com/sd-wan/): Cisco SD-WAN architecture, vManage, vBond, vSmart, and policies
- [QoS: The Complete Guide](https://www.pinglabz.com/qos/): Classification, marking, queuing (LLQ/CBWFQ), shaping, and policing on Cisco IOS XE
- [IPv6: The Complete Guide](https://www.pinglabz.com/ipv6/): IPv6 addressing, routing protocols, transition mechanisms, and dual-stack design
- [GRE: The Complete Guide](https://www.pinglabz.com/gre/): GRE tunnels, recursive routing, and GRE over IPsec
- [Cisco ASA: The Complete Guide](https://www.pinglabz.com/cisco-asa/): ASA security levels, NAT, ACLs, inspection, and active/standby failover
- [Nmap: The Complete Guide](https://www.pinglabz.com/nmap/): Network scanning, host discovery, port scanning, NSE scripts, and firewall evasion techniques

## CCNA Labs

- [CCNA Labs Library](https://www.pinglabz.com/ccna-labs/): 60 hands-on Cisco labs with real CML topologies and downloadable configs
- [CCNA Troubleshooting Labs](https://www.pinglabz.com/troubleshooting-labs/): Ticket-based fault-injection labs on the CCNA base topology
- [CCNA Automation Labs](https://www.pinglabz.com/automation-labs/): Python, Netmiko, and PyATS automation labs covering CCNA Domain 6

## Study Tools

- [CCNA Flashcards App](https://www.pinglabz.com/apps/ccna-flashcards/): 200-question CCNA practice quiz app, free in-browser
- [CCNA Key Terms App](https://www.pinglabz.com/apps/ccna-key-terms/): 230 CCNA term flashcards with definitions, free in-browser

## Optional

- [PingLabz Labs](https://www.pinglabz.com/labs/): Full paid labs library landing page with all three series
- [About PingLabz](https://www.pinglabz.com/about/): Site mission and author background