Initiates or stops Cable Bit Error Rate stress tests for Network Interface Card (NIC)-to-switch links.
ethcabletest [-f hostfile] [-h 'hosts'] [-n numprocs] [start|stop] ...
Produces full help text.
- -f hostfile
Specifies the file with hosts to include in NIC-to-SW test. Default is /etc/eth-tools/hosts file.
- -h hosts
Specifies the list of hosts to include in NIC-SW test.
Starts the NIC-SW.
Stops the NIC-SW.
The NIC-SW cable test requires that the FF_MPI_APPS_DIR is set, and it contains a pre-built copy of the Intel(R) mpi_apps for an appropriate message passing interface (MPI).
ethcabletest -f good
ethcabletest -h 'arwen elrond' start
HOSTS='arwen elrond' ethcabletest stop
The following environment variables are also used by this command:
List of hosts, used if -h option not supplied.
File containing list of hosts, used in absence of -f and -h.
Maximum concurrent operations.