In OBS network, the bandwidth granularity between OCS and OPS.OBS is more flexible than OCS and easier than OPS, which has a bright prospect as a kind of optical technology.

• 在OBS中，使用的带宽粒度介于光电路交换和光分组交换之间，比光电路交换灵活，比光分组交换易于实现，是很有发展前途的光交换技术。