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Once you’ve passed your CCIE qualifying exam, the next hurdle isn’t a technology domain — it’s logistics. Where can you actually sit the eight-hour lab exam, how do the permanent test centers compare to Cisco’s mobile lab events, and what does booking, paying, and showing up on exam day actually involve? This guide walks through... » read more
Passing the CCIE lab exam is less about memorizing facts and more about building enough hands-on muscle memory to configure, troubleshoot, and optimize a full network under an eight-hour clock. A good lab book — whether that’s an official Cisco Press title, a third-party workbook, or a structured PDF of practice scenarios — is usually... » read more
Windows 11 doesn’t make VLAN tagging as visible as it is on network hardware, but the capability is there — spread across adapter properties, PowerShell cmdlets, vendor driver utilities, and Hyper-V’s virtual switch. This guide walks through setting a VLAN ID on a physical adapter, fixing the frustratingly common case where the VLAN option is... » read more
Juniper’s approach to native VLAN diverges from Cisco’s in a way that trips up a lot of engineers moving between platforms — Junos trunk ports don’t recognize untagged data traffic at all by default, which is the opposite starting point from Cisco’s IOS. This guide explains how native-vlan-id and flexible-vlan-tagging actually behave on Junos, maps... » read more
Deleting a VLAN on a Cisco switch is a one-line command — but it has ripple effects that are easy to miss if you don’t understand what happens to the ports that were using it. This guide covers the straightforward case of removing a single VLAN, the more surgical approach of pulling a VLAN off... » read more
Every 802.1Q trunk link has exactly one VLAN that behaves differently from all the others — the native VLAN, whose traffic travels untagged. Left at its default setting, it’s also one of the more commonly overlooked security gaps in a switched network, and one of the most common causes of a trunk that looks “up”... » read more
Getting a VLAN running on a Cisco switch is usually the easy part — assigning a port, creating the VLAN, and confirming connectivity takes just a few commands. The harder parts show up later: understanding why VLAN IDs above 1005 behave differently, and diagnosing exactly why a device suddenly can’t ping across a VLAN it... » read more
Whether you’re segmenting a small office network or managing dozens of switches across an enterprise campus, VLAN configuration follows the same core logic everywhere — even though the exact commands and menus differ from vendor to vendor. This guide starts with the fundamental concepts, walks through a full Cisco CLI configuration step by step, compares... » read more
Passing the Cisco Certified Internetwork Expert (CCIE) Enterprise Infrastructure exam is one of the most significant milestones of my professional life. The CCIE is widely regarded as the most prestigious and demanding certification in the networking industry, and for good reason — the road to earning those four letters after your name is long, rigorous,... » read more