设计者往往对机器的操作复杂性不敏感。
The designers are often insensitive to the operational complexities of their machines.
最后比较了各开源vpn方案的操作复杂性、带宽利用和网络延迟，分析了方案的性能特点。
At last it compare the router's performance which involves scalability, bandwidth utilization and latency with other open source VPN solutions, and analyses the feature of the scheme.
操作管理4为处理内部复杂性提供了一些方法。
Operational governance 4 provides some methods for dealing with internal complexity.
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