Set port members to be the source reflector-port.
The reflector port is the mechanism that copies packets onto an remote mirror VLAN.
The reflector port forwards only traffic from remote mirror VLAN with which it is affiliated:
1. A reflector-port is only existed in source switch.
2. Spanning tree is automatically disabled on a reflector-port.
3. It is a port set to loopback.
4. The reflector port loops back untagged traffic to the switch.
The traffic is then placed on the RSPAN VLAN and flooded to any trunk ports that carry the RSPAN VLAN.
5. The reflector-port can not be mirror-port and monitor-port.