Articles by tag "IOS XE"

1. How to Fix Cisco 9300 All PoE Ports Go Out for 1 Second?
   Selene Gong

   28
   Are you facing a frustrating issue where all PoE ports on your Cisco 9300 go down for 1 second? Devices like IP phones, wireless access points, or security cameras may suddenly lose power—only to restore themselves moments later. This short but system-wide power outage is not a single-port ...
2. Can a Cisco Catalyst 9300 Be Configured for DHCP?
   Selene Gong

   24
   The Cisco Catalyst 9300 series switches can indeed be configured for Dynamic Host Configuration Protocol (DHCP) services. They can operate as a DHCP Server to assign IP configurations to clients or as a DHCP Relay Agent to forward DHCP messages across network segments. This flexibility helps ...
3. Troubleshooting Cisco C9300-NM-8X: Why Your Module's LEDs Aren't Lighting Up During POST
   Selene Gong

   39
   When deploying or troubleshooting Cisco Catalyst 9300 switches, many IT administrators wonder: "Should the Cisco C9300-NM-8X module’s LEDs light up during POST?" Yes, during POST (Power-On Self-Test), the C9300-NM-8X’s LEDs should illuminate briefly if the module is recognized and ...
4. How to Fix: Cisco 9300 SFP Port Not Working
   Selene Gong

   43
   Unresponsive or non-working SFP (Small Form-Factor Pluggable) ports on Cisco Catalyst 9300 switches are a frequent challenge in enterprise network environments. Symptoms include ports showing a status of "down, notconnect" or no link light activity despite proper physical connections and basic ...
5. Power Controller Reports Power Imax Error Detected on Cisco 9300
   Selene Gong

   45
   What Does "Power Imax Error Detected" Mean? The "Power Imax Error Detected" message on a Cisco Catalyst 9300 switch usually indicates that a PoE (Power over Ethernet) port has drawn more current than the configured or hardware-supported limit. This triggers the power controller to shut down the ...
6. How to Use cisco show boot variable commit Command?
   Selene Gong

   32
   The specific command cisco show boot variable commit is not officially documented in Cisco's command references. In Cisco IOS and IOS-XE environments, boot variables are typically managed using the boot system command and confirmed with show boot or show bootvar. Persistence is ensured by saving ...
7. Cisco Catalyst 3650 Default Username and Password – Complete Guide and Password Recovery
   Selene Gong

   21
   Setting up a Cisco Catalyst 3650 switch for the first time—or regaining access after a forgotten password—can be frustrating. You might have tried the classic admin/cisco login and wondered why it didn’t work. Don’t worry—you’re not alone. In this guide, we’ll walk you through ...
8. Cisco Catalyst 3850 Default Username and Password: Reset & Security Guide
   Selene Gong

   21
   For IT administrators and network engineers, knowing the default credentials for a Cisco Catalyst 3850 switch is a critical step in setup or recovery. While many resources list admin/cisco as the default, enterprise switches often require initial configuration before these credentials are ...
9. Cisco 9200 Password Recovery Guide (IOS XE) – Step-by-Step Without Config Loss
   Selene Gong

   -4
   Regain Access Without Configuration Loss (IOS XE) Getting locked out of a Cisco Catalyst 9200 switch is stressful — especially when the device is already in production or when you’ve inherited equipment with no credentials. The good news is that Cisco 9200 password recovery is fully ...
10. Cisco 9300 Password Recovery Guide – Step-by-Step Safe Procedure
    Selene Gong

    19
    Getting locked out of a Cisco Catalyst 9300 switch can be stressful, especially if it’s a production device or part of a StackWise deployment. Fortunately, recovering a lost password on a Cisco 9300 or 9300L running IOS XE is straightforward if you follow the correct procedure. This guide will ...