+ execute_command_ssh(
+ ssh, 'rm -f /tmp/*core*', sudo=True)
+
+ # Set interfaces in topology down.
+ for interface in topology[node]['interfaces']:
+ pci = topology[node]['interfaces'][interface]['pci_address']
+ execute_command_ssh(
+ ssh, "ip link set "
+ "$(basename /sys/bus/pci/devices/{pci}/net/*) down".
+ format(pci=pci), sudo=True)