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CCNA, CCNP, CCIE, ISE, SD-WAN, ACI — deep dives and labs.
This is the TechLeague pillar page for Cisco: 71 hand-curated guides, blueprints and roadmaps, grouped by sub-topic so you can go from zero to production fast. Start anywhere — every article is independent and links back to its cluster.
Latest articles
Certifications9
The CCIE Enterprise Infrastructure Roadmap 2026: A High-Stakes Guide to the Lab
Master the CCIE Enterprise Infrastructure v1.1 roadmap for 2025-2026. This technical guide covers SD-Access, SD-WAN, automation, and a 1,000-hour study plan for senior engineers.
Read article →CCIE Security Roadmap 2026: Blueprint, Lab Strategy, and ROI
Comprehensive CCIE Security v6.1 Roadmap for 2026. Detailed strategies for ISE, Firepower, SD-WAN, and specialized lab hardware requirements for the modern security architect.
Read article →The Aggressive 90-Day CCNA Roadmap for 2026: v1.1 Blueprint Mastery
Master the CCNA 200-301 v1.1 blueprint in 90 days with this aggressive, engineering-focused study plan covering OSPF, Automation, and CML labs.
Read article →CCNP ENCOR 350-401 Blueprint (2026): The No-Fluff Engineering Guide
An elite-level breakdown of the 2026 CCNP ENCOR 350-401 blueprint. Focus on SD-Access, automation, advanced routing, and the shift toward software-defined infrastructure.
Read article →CCNP Security SCOR 350-701 Roadmap: 2026 Engineering Guide
Master the CCNP Security SCOR 350-701 certification roadmap for 2026. Detailed lab plans, ISE integration, Cisco Secure Firewall (FTD) strategies, and ROI analysis for expert engineers.
Read article →Cisco CyberOps Associate CBROPS Roadmap 2026: The SOC Analyst Path
Unlock the Cisco CyberOps Associate (CBROPS) 2026 roadmap. Dive into the blueprint, SOC fundamentals, study plan, and ROI for a career as a Security Operations Center analyst.
Read article →Cisco DevNet Professional Roadmap (2026): Automation Blueprint
Master Cisco DevNet Professional in 2026. This roadmap focuses on Python, Ansible, CI/CD, and network automation, detailing essential skills and ROI for senior network engineers.
Read article →Cisco DCNCIS data center roadmap
Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.
Read article →Cisco DEVASC: developer associate
Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.
Read article →SD-WAN & SD-Access5
Cisco Catalyst vs. Meraki SD-WAN: Enterprise Decoded for 2026 Procurement
Deep dive into Cisco Catalyst SD-WAN (Viptela) vs. Meraki MX for 2026. Compare architecture, scale, SASE, licensing, TCO, and ideal use cases for large enterprise.
Read article →Cisco SD-WAN Multi-Region Fabric: A Resilient Design for 2026
A deep dive into Cisco Catalyst SD-WAN Multi-Region Fabric (MRF) for 2026. Learn advanced design for border routers, Region 0, TLOCs, and scaling past 1000 sites.
Read article →Cisco Catalyst SD-WAN: the official guide translated for network engineers
How Cisco Catalyst SD-WAN (formerly Viptela) really works: vManage, vSmart, vBond, vEdge/cEdge, OMP, overlay fabric, and why this skill is in demand.
Read article →Meraki MX SD-WAN best practices
Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.
Read article →Cisco SD-Access fabric design
Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.
Read article →Security & ISE18
Cisco Duo vs Okta vs Entra ID: Enterprise MFA & Access Comparison 2026
Deep dive into Cisco Duo, Okta Adaptive MFA, and Microsoft Entra ID P2 for enterprise access in 2026. Compare phishing-resistant MFA, device posture, Zero Trust integrations, and TCO for 1k to 50k users.
Read article →Cisco ISE vs Aruba ClearPass vs FortiNAC: 2026 Enterprise NAC Comparison
Deep-dive into 2026's top enterprise Network Access Control platforms: Cisco ISE 3.4, Aruba ClearPass, and FortiNAC. Unbiased analysis for critical procurement decisions.
Read article →Cisco Umbrella vs Zscaler ZIA vs Cloudflare Gateway: 2026 SIG Comparison
Deep dive into Cisco Umbrella, Zscaler Internet Access, and Cloudflare Gateway for 2026 Secure Internet Gateway deployments. We compare performance, security features, and TCO.
Read article →Cisco StackWise Virtual Deep Dive: Campus Core Design for 2026
A detailed technical guide for network engineers on designing and deploying Cisco StackWise Virtual on Catalyst 9500 and 9600 platforms in 2026.
Read article →Cisco Firepower 7.7 FTD: A Pragmatic Migration Guide from ASA for 2026
A deep-dive technical guide for migrating from Cisco ASA to Firepower 7.7 FTD in 2026. Covers the migration tool, FMC vs. CDO, policy parity, and Snort 3 tuning.
Read article →Enterprise Design: Mastering Cisco ISE 3.4 Policy Sets for 2026
Deep dive into Cisco ISE 3.4 policy set design for 2026. Learn to build scalable, high-performance network access policies using SGTs, advanced profiling, and EAP-TLS.
Read article →Cisco Umbrella SIG: Engineering a High-Performance SASE Architecture (2026)
Expert deep dive into Cisco Umbrella SIG (2026) architecture, covering DNS-layer security, IPsec/GRE tunnels, RBI, DLP, and Catalyst SD-WAN integration for modern SASE deployments.
Read article →Migrating Cisco ASA to FTD
Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.
Read article →Duo MFA deployment guide
Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.
Read article →Cisco Firepower IPS tuning
Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.
Read article →Cisco FMC deep dive
Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.
Read article →Cisco FTD policies and best practices
Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.
Read article →Cisco ISE pxGrid integration
Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.
Read article →Cisco ISE: why it's the highest-paid Security skill in 2026
Cisco ISE is the engine behind Zero Trust networks: NAC, posture, micro-segmentation. Why ISE engineers are among the top-paid in 2026 — and how to start.
Read article →Cisco ISE TrustSec and SGTs
Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.
Read article →Cisco Secure Firewall 7.x what's new
Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.
Read article →Cisco Talos threat intel for blue teams
Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.
Read article →Umbrella DNS security deployment
Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.
Read article →Data Center & ACI8
Cisco ACI Multi-Pod vs. Multi-Site: Architecture Choices in 2026
A deep technical analysis of Cisco ACI Multi-Pod and Multi-Site for 2026, covering IPN vs. NDO design, failure domains, sizing, and real-world costs.
Read article →Mastering Cisco Nexus 9000 VXLAN EVPN Multi-Site: 2026 Design Guide
A deep dive into Cisco Nexus 9000 VXLAN EVPN Multi-Site architecture, covering Border Gateway (BGW) design, Cloud Scale ASICs, Anycast GW, and inter-site optimizations.
Read article →Cisco ACI Multi-Pod design
Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.
Read article →Cisco ACI Multi-Site design
Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.
Read article →Cisco ACI vs NX-OS VXLAN EVPN
Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.
Read article →Cisco Catalyst 9000 deep dive
Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.
Read article →Catalyst Center API automation
Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.
Read article →Cisco Nexus 9k vPC best practices
Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.
Read article →Automation & APIs7
Cisco NSO 6.x: Multi-Vendor L3VPN Automation & Operational Realities (2026)
Deep dive into Cisco NSO 6.x architecture, service modeling, and multi-vendor L3VPN automation. Covers CDB, NEDs, LSA, FASTMAP, and field-tested strategies for brownfield migration and conflict resolution.
Read article →Cisco RESTCONF on IOS-XE/XR: YANG Automation for 2026 Networks
Deep dive into Cisco IOS-XE 17.x & IOS-XR 24.x RESTCONF. Explore YANG models, datastores, CRUD operations, and automation tooling for large-scale deployments. Essential for architects.
Read article →Cisco IOS-XE programmability
Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.
Read article →Meraki Dashboard API automation
Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.
Read article →NETCONF/YANG on Cisco devices
Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.
Read article →pyATS / Genie for network testing
Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.
Read article →Cisco vManage REST API automation
Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.
Read article →Cisco Catalyst 9800 WLC Deep Dive: HA, Wi-Fi 7, Catalyst Center (2026)
Comprehensive technical analysis of Cisco Catalyst 9800 WLC platforms, including HA SSO, FlexConnect, Wi-Fi 7 capabilities, AP modes, and Catalyst Center integration with full CLI examples for 2026 enterprise deployments.
Read article →Cisco Catalyst Center vs. Meraki Dashboard: 2026 Enterprise Network Management
Choosing between Cisco Catalyst Center (DNA Center) and Meraki Dashboard for 2026 enterprise networks. Deep dive into deployment, scale, assurance, automation, licensing, and TCO for critical IT decisions.
Read article →Cisco IOS-XR Segment Routing Deep Dive: SR-MPLS, SRv6 uSID, SR-TE (2026)
Comprehensive guide to Cisco IOS-XR Segment Routing: SR-MPLS, SRv6 micro-SID, SR-TE policies, flex-algo, ODN, TI-LFA. Real-world configuration, migration, and sizing for SP cores on ASR/NCS/8000.
Read article →ThousandEyes vs. Catchpoint vs. Kentik: 2026 Network Observability Battleground
Deep dive into Cisco ThousandEyes, Catchpoint, and Kentik for 2026 enterprise network observability. Comparing agent types, synthetic tests, BGP, cloud integration, pricing, and optimal use cases for each.
Read article →Cisco NX-OS EVPN-VXLAN: configuration walkthrough (Nexus 9000)
Step-by-step Cisco NX-OS EVPN-VXLAN config on Nexus 9000: features, underlay, NVE interface, L2/L3 VNIs, anycast gateway and BGP EVPN.
Read article →Cisco Secure Client (AnyConnect) deployment
Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.
Read article →Cisco ASR 1k/9k routing in production
Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.
Read article →BGP on IOS-XE: route maps and policies
Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.
Read article →Cisco Catalyst Center (DNA Center) overview
Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.
Read article →Cisco EEM scripting with Tcl
Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.
Read article →EIGRP advanced: stub, summarization, named mode
Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.
Read article →Cisco IOS-XE upgrade guide and ISSU
Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.
Read article →Cisco IOS-XR for service providers
Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.
Read article →Cisco IP SLA design
Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.
Read article →ISSU upgrade best practices on Cisco
Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.
Read article →Meraki MR Wi-Fi 6E/7 design
Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.
Read article →Cisco MPLS-TE deep dive
Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.
Read article →NetFlow vs sFlow on Cisco
Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.
Read article →OSPF tuning on Cisco IOS
Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.
Read article →Cisco Secure Network Analytics (Stealthwatch)
Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.
Read article →Cisco SecureX integration platform
Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.
Read article →ThousandEyes deep dive
Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.
Read article →ThousandEyes synthetics deep dive
Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.
Read article →Webex Calling networking design
Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.
Read article →TechLeague Challenges
Stop reading about Cisco. Start competing.
Every guide on this page maps to a hands-on challenge with real ranking. Solve the lab, submit the config, climb the leaderboard.
Open the challenge arena →FAQ
- Where should I start with Cisco?
- Open the "Certifications" or "Fundamentals" cluster above and read top-down — every guide is self-contained.
- Are these guides updated for 2026?
- Yes. Every post on this page is dated 2026 and follows current vendor blueprints.
- Do I need a lab to follow them?
- Recommended. Most guides include lab suggestions; for Cisco a free trial or sandbox is usually enough.