You can view ports on a core switch using CLI commands like show interface status or via a GUI dashboard if supported, such as Cisco Meraki's Switch Port View.

Using Command-Line Interface (CLI)

1. Show all port statuses: Enter show interface status to see a summary of all ports on the switch. This displays port numbers, operational status, and VLAN assignments .
2. View a specific module: Specify a module number to see ports on that module only, e.g., show interface status module 1 .
3. Check a specific port: Include both module and port numbers for detailed information, e.g., show interface status module 1/port 3 .
4. Check port channels: For aggregated links, use show etherchannel summary to see Port Channel interfaces, member ports, and their operational status .
5. MAC address table: Use show mac address-table to identify which devices are connected to each port, useful for tracing uplinks or identifying connected switches .

Using GUI or Dashboard

• Cisco Meraki Dashboard: Navigate to Switching > Switches, select a switch, and view the Summary or Ports tab. This provides a visual representation of each port's status, including active, blocked, or disabled states .
• Detailed port view: Click on a specific port to see configuration details, VLAN assignment, and traffic statistics. You can also edit port configurations directly from the dashboard .

Additional Tips

• Identify uplinks: Ports with multiple MAC addresses or high traffic are often uplinks to other switches .
• SPAN or monitoring ports: Ports showing traffic received but not transmitted may be configured as SPAN ports for monitoring .
• Dual supervisor mode: On some core switches, certain port groups may be mutually exclusive depending on the supervisor configuration, so check which ports are active . By combining CLI commands and dashboard tools, you can effectively monitor, troubleshoot, and manage all ports on a core switch.