Configuring Port Mirroring to a Remote Host

A port mirroring configuration that allows mirrored traffic to be transmitted to a remote host which is located across L2 or L3 IP network. This feature allows you to monitor traffic from source ports distributed over multiple switches, which means that you can centralize your network capture devices. Port

Mirroring to a remote host works by mirroring the traffic from the source ports of a mirrored port session onto a VLAN that is dedicated for the port mirroring session. This VLAN is then trunked to other switches, allowing session traffic to be transported across multiple switches.

On the switch that contains the destination port for the session, traffic from the session VLAN is simply mirrored out the destination port.

Parameters are available for the mirror-create command for this feature.

Mirroring Traffic to a Virtual Machine (VM) Interface

Mirroring traffic coming from a switch port rear facing network interface card (NIC) to a VM NIC is now supported. This feature is useful for several reasons:

  • Viewing incoming traffic from front facing ports.
  • Troubleshooting issues if traffic is not running as expected.
  • Using a firewall, running as an application on a VM, for all incoming traffic.

This feature is related to the existing mirror-create command which mirrors traffic from any port to a rear facing NIC and uses the parameter option mirror-traffic on the Netvisor One kvm-interface-add command.