RabbitMQ的集群和高可用不适合跨域的情况，如果跨域可以使用Shovel或Federation。
描述：我们需要配置三台服务器：ServerA, ServerB, ServerC
Step 1：安装RabbitMQ，ServerA, ServerB, ServerC：Windows & RabbitMQ：安装，Step 1, 2, 3, 4, 5
Step 2：修改ServerA, ServerB, ServerC的Host文件，例如ServerA：
ServerB 201.45.1.180 ServerC 202.45.1.115
Step 3：启用Shovel和Shovel Management Plugin，ServerA, ServerB, ServerC：
"C:\Program Files\RabbitMQ Server\rabbitmq_server-3.6.1\sbin\rabbitmq-plugins.bat" enable rabbitmq_shovel
"C:\Program Files\RabbitMQ Server\rabbitmq_server-3.6.1\sbin\rabbitmq-plugins.bat" enable rabbitmq_shovel_management
Step 4：配置Shovel
