求翻译：认证服务器之间要通过标准的通讯协议，互相交换认证信息，就能完成更高级别的单点登录。如：当用户在访问应用系统1时，由第一个认证服务器进行认证后，得到由此服务器产生的ticket。当他访问应用系统2的时候，认证服务器2能够识别此ticket是由第一个服务器产生的，通过认证服务器之间标准的通讯协议（例如SAML）来交换认证信息，仍然能够完成SSO的功能。是什么意思？

Through the standard communication protocol between the authentication server to exchange authentication information, you can complete a higher level of single sign-on. Such as: When users access applications 1:00, the first authentication server to authenticate the ticket generated by this server.

certification through the server to the communication protocol standards to exchange authentication information, we will be able to complete a higher level of single sign-on. For example, when a user accessing the application system 1, the first of the authentication server for authentication, the s

Authentication between servers through standard communication protocols to Exchange authentication information, to complete higher levels of single-sign on. Such as: when users access the application system at 1 o'clock, after the first authentication server authentication, get ticket generate