Issue Description
Q:
How does NE20 realize mirroring of FIC port?
Handling Process
A:
Under default NE20 only supports mirroring of HIC port. But the system offers the command "mirror the traffic from DMU to NP to HIC port". The traffic from FIC port checks the table in NP through DMU. Mirror the traffic from DMU to NP to realize the mirroring of traffic from FIC port. Related commands are as follows:
[NE20]observing-port Ethernet 4/0/0 #define observing port and observing port must be HIC port
[NE20]port-mirroring dmua both Ethernet 4/0/0 #Mirror the traffic from DMU to NP to observing port
