+ def start_vpp_service_on_all_duts(self, nodes):
+ """Start up the VPP service on all nodes."""
+ ssh = SSH()
+ for node in nodes.values():
+ if node['type'] == NodeType.DUT:
+ ssh.connect(node)
+ (ret_code, stdout, stderr) = \
+ ssh.exec_command_sudo('service vpp restart')
+ if 0 != int(ret_code):
+ logger.debug('stdout: {0}'.format(stdout))
+ logger.debug('stderr: {0}'.format(stderr))
+ raise Exception('DUT {0} failed to start VPP service'.
+ format(node['host']))
+