单点登录（cas）登陆成功后跳转过程非常慢

问题如题：cas登陆成功后跳转过程非常慢，请大家班忙 谢谢大家
目前已经能够通过cas进行单点登录，跳转也能跳转 就是跳转的时间很长。
另：已经配置host
192.168.1.208 hostname
在工程的web.xml文件中也进行了相应的配置：
<filter>
<filter-name>CAS Filter</filter-name>
<filter-class>jetsennet.ncss.user.servlet.CustomCASFilter</filter-class>
<init-param>
<param-name>edu.yale.its.tp.cas.client.filter.loginUrl</param-name>
<param-value>https://172.19.1.208:8443/cas/login</param-value>
</init-param>
<init-param>
<param-name>edu.yale.its.tp.cas.client.filter.validateUrl</param-name>
<param-value>https://hostname:8443/cas/serviceValidate</param-value>
</init-param>
……
另外还这么试过：
<filter>
<filter-name>CAS Filter</filter-name>
<filter-class>jetsennet.ncss.user.servlet.CustomCASFilter</filter-class>
<init-param>
<param-name>edu.yale.its.tp.cas.client.filter.loginUrl</param-name>
<param-value>https://hostname:8443/cas/login</param-value>
</init-param>
<init-param>
<param-name>edu.yale.its.tp.cas.client.filter.validateUrl</param-name>
<param-value>https://hostname:8443/cas/serviceValidate</param-value>
</init-param>