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Pan-European Optical Transport Networks: An Availability-based Comparison

机译：泛欧光传输网络：基于可用性的比较

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The traffic to be carried by today's European backbone networks increases very rapidly. An important portion of this traffic consists of data traffic (mainly IP-related). In the future data traffic is expected to become the abundantly dominant traffic type, while voice traffic will only account for a very small portion of the total traffic volume. In this paper, some network topologies for such a pan-European fiber-optic backbone network are presented (more details can be found in [1]). These topologies are compared in terms of the efficiency of the network design both from a cost and capacity point of view and in terms of the availability of the connections routed over this network. In order to be able to assess the network topologies under realistic circumstances, the expected traffic demand is forecasted. This enables to make the comparison for the current traffic volume as well as for the traffic patterns of the future. As not all types of (data) traffic require the same degree of survivability and in order to leverage the total capacity cost of the network design, a distinction is made between different recovery options in the optical layer for the different traffic types considered.
机译：当今的欧洲骨干网将要承载的流量迅​​速增加。此流量的重要部分包括数据流量（主要是与IP相关的流量）。未来，数据流量有望成为最主要的流量类型，而语音流量将仅占总流量的很小一部分。在本文中，提出了这种泛欧光纤骨干网的一些网络拓扑（更多详细信息可以在[1]中找到）。从成本和容量的角度，从网络设计的效率以及在此网络上路由的连接的可用性方面比较了这些拓扑。为了能够在实际情况下评估网络拓扑，预测了预期的流量需求。这样可以对当前流量和未来流量模式进行比较。由于并非所有类型的（数据）流量都需要相同程度的生存能力，并且为了利用网络设计的总容量成本，因此需要针对所考虑的不同流量类型在光层中的不同恢复选项之间进行区分。

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