"""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) = \
"""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) = \