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在一个分层网络中,单一的恢复机制不可能满足宽带网络生存性的需要,如何协调配合SDH层和ATM层之间的恢复策略是一个亟待解决的问题。文章首先介绍了SDH和ATM网络的自愈技术,然后对SDH/ATM自愈网络的层间升级机制进行了讨论。
In a hierarchical network, a single recovery mechanism can not meet the needs of the survivability of broadband networks. How to coordinate the recovery strategy between the SDH layer and the ATM layer is an urgent problem to be solved. The article first introduced the self-healing technology of SDH and ATM networks, and then discussed the inter-layer upgrade mechanism of SDH / ATM self-healing network.