Service 17 includes mirroring subscriber traffic to a specific VLAN, which is added to the data ports of SSG. The traffic direction is preserved.

Configuration in fastdpi.conf:

span_vlan=123

For diagnostics, you can use one of the parameters in fastdpi.conf:
These are hot parameters, enabled and disabled with reload

trace_ip
span_trace
ajb_save_emit

Enabling VLAN mirroring:

fdpi_ctrl load --service 17 --ip 192.168.1.1
fdpi_ctrl load --service 17 --login USER101 

Disabling VLAN mirroring:

fdpi_ctrl del --service 17 --ip 192.168.1.1
fdpi_ctrl del --service 17 --login USER101