Checking the status of optical ports on an H3C switch

You can check if an H3C switch port is an optical port by using CLI commands like display interface or by inspecting combo port settings.

Using CLI Commands

1. Display Interface Status Run the command:

   display interface interface-type interface-number This shows the port negotiation speed, link status, and transceiver type. If a transceiver is installed and recognized, the port is optical. For a summary of all ports, use:

   display interface brief This lists all ports and their types, including optical ports, link status, and traffic statistics .

2. Check Transceiver Details Some H3C switches allow you to view detailed transceiver information, including type (SFP, SFP+, QSFP), wavelength, and operational status. This confirms whether the port is optical .

Understanding Combo Ports

• Combo ports can operate as either an electrical (copper) port or an optical port, but not both simultaneously. Enabling one automatically disables the other .
• To check or configure a combo port, enter system view and the Ethernet port view:

  system-viewinterface interface-type interface-number Then set the medium dependent interface (MDI) mode:

  mdi {across | auto | normal} This allows you to specify whether the port should operate as optical or electrical .

Additional Tips

• Port Descriptions: Some switches allow you to set a description for each port, which can indicate whether it is intended for optical use.
• Transceiver Presence: If a port has an SFP or other optical module installed, it is an optical port.
• Documentation: Refer to your switch model's manual to identify which ports are capable of optical connections, especially for combo ports . By combining CLI commands and understanding combo port behavior, you can accurately determine whether an H3C switch port is optical.