可以看到状态为UNKNOWN的静态监听已经起起来来了，而状态为READY的动态监听由于重新注册存在一定延时，所以还没起起来。等上一段
（1）listener.ora
本次实验将配置静态监听到listener L1上，，项目SID_LIST_L1为L1的静态监听配置信息：
（2）listener.ora文件编辑好后，使用reload重新读取该配置文件（reload同时也会重新注册动态监听）：
（
RELOAD Purpose Use the RELOAD command to reread the listener.ora file. This command enables you to add or change statically configured services without actually stopping the listener.In addition, the database services, instances, service handlers, and listening endpoints that were dynamically registered with the listener will be unregistered and subsequently registered again.
）
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