slice_id = generate_slide_id(cred, hrn)
msg = struct.pack('> B%ds%ds' % (len(slice_id)+1, len(rspec)), SFA_CREATE_SLICE, slice_id, rspec)
slice_id = generate_slide_id(cred, hrn)
msg = struct.pack('> B%ds%ds' % (len(slice_id)+1, len(rspec)), SFA_CREATE_SLICE, slice_id, rspec)