A request message can be processed by any of multiple providers without explicit identification of the provider by the requester.
请求消息可由多个提供程序中的任何一个进行处理，请求程序不必显式地确定提供程序。
2
Cache identification has been introduced with additional request parameters to facilitate application version caching.
引入了具有附加请求参数的缓存标识，以便简化应用程序版本缓存。
3
For example, the initial SYN request can be a gold mine (as can the reply to it). RST packets also have some interesting features that can be used for identification.