1-9 
Displaying and Maintaining Basic Port Configuration 
To do...  Use the command...  Remarks 
Display port configuration 
information  
display interface [ interface-type | 
interface-type interface-number ] 
Display the enable/disable 
status of port loopback 
detection 
display loopback-detection 
Display information for a 
specified port group 
display port-group group-id 
Display brief information about 
port configuration 
display brief interface [ interface-type 
[ interface-number ] ] [ | { begin | include | 
exclude } regular-expression ] 
Display the Combo ports and 
the corresponding 
optical/electrical ports 
display port combo 
Display port information about 
a specified unit 
 
display unit unit-id interface 
Available in any 
view 
Clear port statistics 
reset counters interface [ interface-type | 
interface-type interface-number ] 
Available in user 
view 
After 802.1x is 
enabled on a port, 
clearing the 
statistics on the port 
will not work.