LINK

hi all,

How to list the interfaces that are 100% not being used for long time on the Ex9200 series?

Secondly, can "LINK" be indicated not being used? Or it is not 

I tried the following one...But I am not sure there are more accurate ones?

>show interfaces extensive | match "^Phy.*Down|: LINK" | except control
Physical interface: xe-2/0/18, Enabled, Physical link is Down
  Active alarms  : LINK
  Active defects : LINK
Physical interface: ge-2/0/28, Enabled, Physical link is Down
  Active alarms  : LINK
  Active defects : LINK
Physical interface: xe-3/0/26, Enabled, Physical link is Down
  Active alarms  : LINK
  Active defects : LINK
Physical interface: xe-3/0/34, Enabled, Physical link is Down
  Active alarms  : LINK
  Active defects : LINK