Configuring Layer 2 remote port mirroring
To configure Layer 2 remote port mirroring, perform the following tasks:
Configure a remote source group on the source device.
Configure a cooperating remote destination group on the destination device.
If intermediate devices exist, configure the following devices and ports to allow the remote probe VLAN to pass through.
Intermediate devices.
Ports connected to the intermediate devices on the source and destinations devices.
When you configure Layer 2 remote port mirroring, follow these restrictions and guidelines:
The egress port must be assigned to the remote probe VLAN. The reflector port is not necessarily assigned to the remote probe VLAN.
For a mirrored packet to successfully arrive at the remote destination device, make sure its VLAN ID is not removed or changed.
Do not configure both MVRP and Layer 2 remote port mirroring. Otherwise, MVRP might register the remote probe VLAN with incorrect ports, which would cause the monitor port to receive undesired copies. For more information about MVRP, see Layer 2—LAN Switching Configuration Guide.
As a best practice, configure devices in the order of the destination device, the intermediate devices, and the source device.