请告诉我你们觉得上述方案如何。
Please tell me how you feel about the plan I mentioned above!
但据我所知，没有商家实施了上述方案：他们改为采用交换机。
However, as far as I know, no vendors implement the above scheme; they assume the presence of switches instead.
如果您正在配置上述方案 3，那么您需要设置该工作区字段。
You need to set the workspace field if you are configuring scenario three described above.
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