A communication interface is used at a first end of a communication link and includes a number of communication lanes. The communication interface includes a logic configured to cooperate with another communication interface at a second end of the communication link to send data to the second end over the communication lanes. The logic is configured to store a communication lane status for an awake communication lane, and upon detecting that the communication lane status for the awake communication lane is changed to a first determined status: to stop sending data over the awake communication lane, change an asleep communication lane into a new awake communication lane, and inform the communication interface at the second end.