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Labs

Hands-on Cisco IOS XE lab walkthroughs. Each lab ships with a real CML topology, configs you can paste, and verified show output. Articles tagged Labs cover the full CCNA 200-301 blueprint across Network Fundamentals, Network Access, IP Connectivity, IP Services, and Security Fundamentals.

76 posts

Lab ipc-05 - OSPF Multi-Area (ABR + Type 3 LSAs)

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Labs

Lab ipc-05 - OSPF Multi-Area (ABR + Type 3 LSAs)

Multi-area OSPF divides a network into smaller logical zones connected through Area 0 (the backbone). Each non-backbone area

J

May 12, 2026 5 min read

Lab ipc-03 - RIPv2 Essentials

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Labs

Lab ipc-03 - RIPv2 Essentials

RIP (Routing Information Protocol) is the dynamic routing protocol every textbook teaches first because it is the simplest. Distance-vector,

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May 12, 2026 4 min read

Lab ipc-07 - OSPF DR/BDR Election

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Labs

Lab ipc-07 - OSPF DR/BDR Election

On a broadcast OSPF segment, the protocol elects a Designated Router (DR) and a Backup DR (BDR). Other routers form

J

May 12, 2026 5 min read

Lab ipc-06 - OSPF Network Types

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Labs

Lab ipc-06 - OSPF Network Types

OSPF operates differently on different link types. On Ethernet (broadcast), it elects a DR/BDR. On a point-to-point

J

May 12, 2026 4 min read

Lab na-14 - Wireless Architecture Overview (Concept Lab)

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Labs

Lab na-14 - Wireless Architecture Overview (Concept Lab)

The CCNA exam requires a working understanding of wireless network architecture without a hands-on Wi-Fi lab requirement. The

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May 12, 2026 4 min read

Lab na-13 - SVI on L3 Switch (Inter-VLAN Routing)

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Labs

Lab na-13 - SVI on L3 Switch (Inter-VLAN Routing)

An SVI (Switched Virtual Interface) is a virtual L3 interface inside a switch, associated with a VLAN. When the switch

J

May 12, 2026 6 min read

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