分组增强型OTN控制平面技术研究

分组增强型OTN实现了分组传输网络(PTN)和光传送网络(OTN)的进一步有机融合,其网络内部综合了分组交换,VC交叉,ODUk交叉,波长交叉等不同的交换颗粒,引入智能控制层面,实现多交换颗粒、多业务适配网络环境下的资源调度,成为POTN网络应用的重要需求。本文从光传送网络智能化标准化现状出发,对POTN网络控制平面实现机制中的多层信令调度、层间资源调度策略、保护恢复机制实现等问题进行分析研究。

Study on Control Plane Technologies of Packet Enhanced OTN

Packet enhanced OTN integrated the function of packet transport network and optical transport network, and it has multiple switching granularity which include packed switching, VC switching, ODUk switching and wavelength switching. So introducing the control plane to realize the multi-granularity exchange and multi-service adaptation, will become the most important requirements for POTN network application. The international standardization status for the control plane of optical transport network was first introduced in this paper, and then the mechanism ofmultilayer signaling scheduling, interlayer resource scheduling strategy, protection and recovery mechanism for POTN network control plane implementation was also analyzed.