To get this do a "show interface counters errors" . You break it down to the module at the end if need be with a "show interface counters errors mod (slot#) . This is where most of your info will be if you like the old catos style under show interface counters . A lot info hidden in here . Just like "show interface status is equal to the old show port under catos . Seems like it is harder to get the info in native than it was under catos , you really have to dig around to find it .