SMC Networks TigerStack II SMC8848M Management Manual page 607

Command Usage
This command displays the currently configured source port,
destination port, and mirror mode (i.e., RX, TX, RX/TX).
Example
The following shows mirroring configured from port 6 to port 11:
Console(config)#interface ethernet 1/11
Console(config-if)#port monitor ethernet 1/6
Console(config-if)#end
Console#show port monitor
Port Mirroring
-------------------------------------
Destination port(listen port):Eth1/1
Source port(monitored port)
Mode
Console#
:Eth1/6
:RX/TX
SHOW PORT MONITOR
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