A mugichannel ring is designed. Each sublayer network is connected to the dng with an access node (AN), which can transmit data at every wavelength with a tunable laser diode. The data transmission speed at each wavmength is 1.25Gbit/s. With eight wavelengths, a total bandwidth of 10Gbg/s can be obtained With a bandpass filter, the de-sired optical signal can be dropped down at the access node On receiving a data packet, the optical signal is split into two parts. One part is converted to an electrical signal and its destination address is extracted and vedtied. If the data packet belongs to the local subnatwork, it is received. Otherwise. it is retransmitted to the next access node with a selected wavelength. So pipelining data transmlssien can be achieved among different wavelengths. And this natwodt is a multipipeline structure. The data processing time is less than 30Ons, and all of the processing procedure is implemented via a fieid programmable gate array (FPGA). So the communication latency and communication overheads can be decreased. Meanwhile, the ring topology has good sca/ability. More wavelengths can he adopted for a large-scale network with more access nodes.