What Is an Uplink Port on a Switch?
An uplink port is the switch port that connects “up” to the next device in the network hierarchy — a...
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What Is an SFP Port on a Switch?
An SFP port is a modular slot on a network switch that accepts a small, hot-swappable transceiver module. The port...
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Cisco IE Switch PoE Not Working: Industrial Troubleshooting Guide
When a Cisco Industrial Ethernet (IE) switch powers on but delivers no PoE, the cause is usually the power input,...
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C9300 Switch Reset to Factory: Keep IOS and Clear Config
For most C9300 switch reset-to-factory jobs, use write erase, delete flash:vlan.dat when VLAN database cleanup is required, and reload without saving the current...
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Catalyst 9300 Password Recovery Guide: Recover Without Losing Config
Recovering a Catalyst 9300 password is usually a configuration-preserving IOS XE procedure, not a factory reset. Connect through the console,...
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How to Enable PoE on Cisco Switch: CLI Commands and Checks
On most Cisco Catalyst PoE switches, PoE is already enabled by default on PoE-capable ports. To explicitly enable or re-enable...
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Cisco ASA Password Recovery 2026: Firepower 1010, 2100, 3100, 4100, and 4200
Cisco Firepower and Secure Firewall platforms do not all use the same ASA password recovery process. On newer platforms, the...
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C9300L-48PF-4X-E vs C9300L-48P-4X-E: 890W vs 505W PoE Compared (2026)
C9300L-48PF-4X-E and C9300L-48P-4X-E are both Cisco Catalyst 9300L 48-port 1G PoE+ access switches with four fixed 10G/1G SFP+ uplinks, StackWise-320...
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NXOS-AD-XF Perpetual License: Availability, Options, and How to Buy
Quick answer: Cisco’s current licensing guide still lists NXOS-AD-XF as the perpetual NX-OS Advantage license for supported XF-class fixed Nexus 9000 platforms. If...
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Cisco Products Datasheets Download Center
Looking for Cisco datasheet PDF download resources? This Cisco Products Datasheets Download Center provides a categorized collection of Cisco product...
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Cisco Firepower 1000 vs 2100 vs 3100: Which Series Should You Choose?
Small branch: start with Firepower 1000.Installed-base refresh: Firepower 2100 may still belong in the shortlist.Growth-focused branch or regional edge: move...
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Cisco FDM vs FMC: Key Differences, Use Cases, and How to Choose the Right Cisco Firewall Management Option
If you are deciding between FDM and FMC for Cisco Secure Firewall, the fastest answer is this: FDM is usually...
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Cisco Catalyst 1300 Stacking: Which Models Support It, Setup Steps, and Common Problems
If you are planning a Catalyst 1300 deployment, stacking usually comes down to a few practical questions: which models can...
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Cisco Industrial Switch Power Supply Guide: How to Tell AC from DC and Choose the Right Power Method
Most Cisco industrial switch power issues become easier once you identify the site first. If the cabinet only has normal...
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Cisco IE-3300 / IE-3400 Power Supply and IEM Module Select Guide
Choosing the right Cisco IE-3300 or IE-3400 configuration is mainly a BOM problem, not just a switch selection problem. The...
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