此类定义两个对等方之间的连接的参数，此定义包含各种超时和大小以及通道配置。
此类的实例可用于配置 NetworkServer 和 NetworkClient 类。这样，ConnectionConfig 中的设置便可应用到这些对象所拥有的 NetworkConnection 的传输层连接。
NetworkManager 有一个 ConnectionConfig 对象，可用于配置该对象创建的服务器和客户端。
网络系统的高级组件使用的默认通道连接配置为：
* 通道 0 - 经过排序的可靠通道
* 通道 1 - 不可靠通道。
在 Editor 中，可以使用适用于 NetworkManager 的 Inspector UI 修改此 ConnectionConfig 实例的一些属性。
重要信息：ConnectionConfig 的一些参数应与所连接对等方的参数完全相同。如果它们不相同，则在尝试建立连接时会收到 CRCMismatch 错误。
这些参数为：
- PacketSize
- FragmentSize
- ResendTimeout
- DisconnectTimeout
- ConnectTimeout
- PingTimeout
- ReducedPingTimeout
- AllCostTimeout
- IsAckLong
- UsePlatformSpecificProtocols。
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