Configuring Layer 3 remote port mirroring
To configure Layer 3 remote port mirroring, perform the following tasks:
Create a local mirroring group on both the source device and the destination device.
Configure the monitor port and source ports or source CPUs for each mirroring group.
The source and destination devices are connected by a tunnel. If intermediate devices exist, configure a unicast routing protocol on the intermediate devices to ensure Layer 3 reachability between the source and destination devices.
On the source device, perform the following tasks:
Configure source ports or source CPUs you want to monitor.
Configure the tunnel interface as the monitor port.
On the destination device, perform the following tasks:
Configure the physical interface corresponding to the tunnel interface as the source port.
Configure the port that connects to the data monitoring device as the monitor port.