Methods and apparatus, including computer program products, are provided for communications. In one aspect there is provided a method. The method may include sending, by a low power node, an indicator to a target low power router, wherein the indicator at least represents a request to operate with a prior context used at a source low power router; and receiving, by the low power node, a message in response to the indicator, wherein the message at least indicates whether the low power node can operate at the target low power router with a same context that corresponds to the prior context used previously at the source low power router. Related apparatus, systems, methods, and articles are also described.