| 摘要 |
<p>Embodiments of the present invention provide an optical network switching node in a multi-chassis cluster, an optical burst synchronization method, and a line card chassis. A synchronization method includes: selecting a reference chassis, and transmitting, by an output port corresponding to an FTL in the reference chassis, an optical burst test signal respectively to receive ports corresponding to ORs in other line card chassis, where the optical burst test signal carries a transmission timeslot number; and acquiring, by a receive port corresponding to an OR in each line card chassis, according to an optical path difference between the receive port corresponding to the OR in each line card chassis and the output port corresponding to the FTL in the reference chassis, time of receiving the optical burst test signal, and the transmission timeslot number, a time-phase difference between each line card chassis and the reference chassis, and calibrating a local clock phase according to the time-phase difference. The technical solution of the present invention resolves the optical burst synchronization problem, implements an OTN-based multi-chassis cluster, increases the system capacity, and reduces power consumption.</p> |
