In the evolution of the optical transport network to the packet transport network, one of the main concerns of the operators is the interworking between networks.
在光传送网向分组传送网演进的过程中，网络之间的互联互通是运营商关心的主要问题之一。
In the evolution of the optical transport network to the packet transport network, one of the main concerns of the operators is the interworking between networks.
在光传送网向分组传送网演进的过程中，网络之间的互联互通是运营商关心的主要问题之一。
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