S10508-V结合深澜服务器做Portal无感知认证终端不定时掉线

现场为有线终端接入，网关在S10508-V的交换机上，Portal无感知认证做在核心交换机上。

现场反馈交换机S10508-V在结合深澜服务器做Portal无感知认证时，终端每隔1-2个小时在接入有线网络时，会出现掉线，需要重新认证，无法直接无感知上线的问题。但是重新输入用户名密码认证后，是可以正常上线并使用的，可以看出现场是无感知上线出现问题。

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interface Vlan-interface1016

 ip address 172.16.16.254 255.255.255.0

 portal enable method direct

 portal bas-ip 172.16.16.254

 portal apply web-server Srun4000

 portal apply mac-trigger-server shenlan

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 radius session-control enable

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radius scheme test

 primary authentication 172.16.4.200

 primary accounting 172.16.4.200

 key authentication cipher $c$3$M/BaDyzmFT4CFc4pNW+xQfsGLRbmdWwDdQ==

 key accounting cipher $c$3$vBpUg3PYHE5WAOHpq8B9j1QNTd+EJdyoGg==

 timer realtime-accounting 15

 user-name-format without-domain

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radius dynamic-author server

 client ip 172.16.4.200 key cipher $c$3$bV3pfLz+rUcYkOynImHNrEqH/u7X1Kcs2g==

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domain ***.***

 authentication portal radius-scheme test

 authorization portal radius-scheme test

 accounting portal radius-scheme test

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portal web-server Srun4000

 url http://172.16.4.200

 server-detect interval 30 retry 5 log

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portal server Srun4000

 ip 172.16.4.200 key cipher $c$3$BYdMt8HgKd/pDseBRX8PV4XdVpKbTDXQMw==

 user-sync timeout 14500

 server-detect timeout 120 log

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portal mac-trigger-server shenlan

 ip 172.16.4.200 key cipher $c$3$HGvlJPm5VKqCHDe22LSlnHCQdtmhiulbZA==

 aging-time 7200

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有什么排查方法吗