名词
中文翻译：四层交换机
同义词：
['four-port switch', 'four-port switch', 'four-port switch']
例句：
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1.The network administrator needs to replace the old four-layer switch with a new one.
网络管理员需要用新的四层交换机替换旧的。
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2. The company has upgraded its data center to use a four-layer switch for better performance.
该公司已将其数据中心升级为使用四层交换机以提高性能。
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3. The technician was instructed to troubleshoot the issue with the four-layer switch.
技术人员被指示用四层交换机来解决问题。