【摘要】 探讨了IPoverDWDM生存性的机制,研究了各个网络层的恢复特点以及不同层间相互作用对生存性的影响,明确了多层网络生存性的优点,从而得出光层能够提供最快的保护,较高的层能够提供智能恢复。最后提出了一种在光层的自动保护倒换的结构,这种保护能够优先考虑来自较高层的告警信息,使IPoverDWDM网络做到智能化的快速恢复,为IPoverDWDM网络的研究和建设提供了一定基础。更多还原

【Abstract】 The paper discusses survivability mechanisms of IP over DWDM, studies the recovery features of each network layer, and explains the impact of interaction between layers on survivability. The advantages and issues of multi-layer survivability have been identified. The result is that the optical layer can provide fast protection while the higher layers can provide intelligent restoration. With this idea, a new scheme of carrying IP over DWDM using MPLS has been discussed. Finally, an architecture is suggested by means of which the optical layer can perform an automatic protection switch, with priority considerations with the help of signaling from the higher layers, and lay the base for the study and construction of IP over DWDM.更多还原