ATMLOOP(8) - Linux man page online | Administration and privileged commands

Get/set loopback mode of ATM interfaces.

April 26, 2000
ATMLOOP(8) Maintenance Commands ATMLOOP(8)


atmloop - get/set loopback mode of ATM interfaces


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


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 with‐ out options, atmloop displays the current loopback settings.


-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.


Werner Almesberger, EPFL ICA <>


atmdiag(8), sonetdiag(8)
Linux April 26, 2000 ATMLOOP(8)
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