Articles by tag "NM-8X"

1. Why Is the SFP LED Flashing Green on Cisco NM-8X? Understanding Port Activity and Troubleshooting
   Selene Gong

   7
   A flashing green SFP LED on your Cisco NM-8X network module, part of the Catalyst 9300 Series switches, is generally a normal indication of data activity. It means the port is actively sending or receiving data. This is typically a healthy sign of link operation. However, depending on the ...
2. How to Fix: Cisco 9300 SFP Port Not Working
   Selene Gong

   12
   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 ...