咨询一下大佬: gatewayworker 源码阅读 _innerTcpWorker 为什么每个进程使用独立的端口？

     // 初始化 gateway 内部的监听，用于监听 worker 的连接已经连接上发来的数据
        $this->_innerTcpWorker = new Worker("GatewayProtocol://{$this->lanIp}:{$this->lanPort}");
        $this->_innerTcpWorker->reusePort = false;
        $this->_innerTcpWorker->listen();
        $this->_innerTcpWorker->name = 'GatewayInnerWorker';