# File lib/specinfra/command/freebsd/base/interface.rb, line 52
    def get_link_state(interface)
      # Checks if interfaces is administratively up with the -u arg.
      # L1 check via status. Virtual interfaces like tapX missing the status will report up.
      # Emulates operstate in linux with exception of the unknown status.
      %Q{ifconfig -u #{interface} 2>&1 | awk -v s=up '/status:/ && $2 != "active" { s="down" }; END {print s}'}
    end