基于路径恢复的ATM/SDH网状网自愈结构

研究了异步转移模式/同步数字序列的多层网状传输网络中的自愈机制,提出了一种既能提高恢复速度又能降低实现复杂性的基于路径恢复的自愈结构,给出了充分利用网管中心智能的两级恢复路由寻径算法。计算机仿真表明,该结构及其核心算法是可行的,其自愈恢复时间小于文献中已有的方案。

A Self-healing Structure Based on Path Restoration in ATM/SDH Meshed Networks

The integration of different technologies such as ATM over SDH multilayer transport networks raises many questions regarding the coordination of the individual network layers. In particular, in the area of network survivability, much can be gained by a better alignment of the healing actions taken by different network layers in case of outages. A new self-healing scheme with a new architecture and a new routing algorithm is proposed. Simulation shows that the scheme can achieve quicker restoration than other schemes proposed.