Provided by: atm-tools_2.4.1-17_i386 bug

NAME

       atmloop - get/set loopback mode of ATM interfaces

SYNOPSIS

       atmloop -s [-l level] [-r level] [itf]
       atmloop [itf]
       atmloop -q [itf]
       atmloop -V

DESCRIPTION

       atmloop  sets  or  shows  the  current  loopback  settings  of  an  ATM
       interface, and allows to query the  loopback  modes  supported  by  the
       interface.

       Some ATM cards can be configured to echo data back to the driver (local
       loopback) or to the network (remote loopback). The echoing may be  done
       at several different levels:

       aal    AAL PDUs

       atm    ATM cells

       digital
              bits sent to or received from the line interface

       analog the analog signal

       The levels supported by an interface can be queried with the -q option.
       If invoked without  options,  atmloop  displays  the  current  loopback
       settings.

OPTIONS

       -s     set  loopback mode. Followed by either -l or -r, both options to
              set local and remote loopback at the same time (if supported  by
              the driver), or none of them to turn off any loopback.

       -l level
              enable local loopback.

       -r level
              enable remote loopback.

       -q level
              query loopback levels supported by the interface.

       -V     print version number of atmloop on standard output and exit.

AUTHOR

       Werner Almesberger, EPFL ICA <Werner.Almesberger@epfl.ch>

SEE ALSO

       atmdiag(8), sonetdiag(8)