How to monitor network traffic through Cisco Nexus switches

Configure Cisco Nexus Switch

  1. Open a session on the switch
  2. Enter configure mode configure terminal
  3. Enter the configuration mode for the specified Ethernet interface you want to mirror to interface eth <port>
  4. Set the interface to monitor switchport monitor
  5. Exit back to configuration mode exit
  6. Configure the monitor monitor session <session number here>
  7. Configure the destination port destination interface ethernet <port>
  8. Configure the source port(s) or VLAN(s) source interface ethernet|vlan <port|vlan-id> both
  9. Exit back to configuration mode exit

Ensure you save your configuration once you have verified it is configured correctly