This object sets the device's role within this remote mirroring session: mirror(0) performs local mirroring on the device itself, source(1) makes it the origin of monitored traffic, intermediate(2) makes it a forwarding node relaying monitor traffic toward the destination, and destination(3) makes it the final collection point. Admins assign roles across a chain of switches to build a multi-hop remote mirroring topology that carries mirrored traffic from a distant source switch to a centralized capture device. Setting me1200RmirrorConfigSessionSwitchType to destination(3) on the switch where the packet capture tool is connected designates it as the endpoint that finally receives all mirrored traffic.