%Jan 6 13:25:15:130 2021 xifeimenkou IFNET/3/PHY_UPDOWN: Physical state on the interface GigabitEthernet1/0/1 changed to down. %Jan 6 13:25:15:136 2021 xifeimenkou IFNET/5/LINK_UPDOWN: Line protocol state on the interface GigabitEthernet1/0/1 changed to down. %Jan 6 13:25:15:143 2021 xifeimenkou IFNET/3/PHY_UPDOWN: Physical state on the interface Vlan-interface1 changed to down. %Jan 6 13:25:15:145 2021 xifeimenkou IFNET/5/LINK_UPDOWN: Line protocol state on the interface Vlan-interface1 changed to down. %Jan 6 13:25:15:147 2021 xifeimenkou CWC/4/CWC_AP_DOWN: Master CAPWAP tunnel to AC 192.168.0.100 went down. Reason: AP interface used for CAPWAP tunnel went down. %Jan 6 13:25:21:131 2021 xifeimenkou IFNET/3/PHY_UPDOWN: Physical state on the interface GigabitEthernet1/0/1 changed to up. %Jan 6 13:25:21:136 2021 xifeimenkou IFNET/5/LINK_UPDOWN: Line protocol state on the interface GigabitEthernet1/0/1 changed to up. %Jan 6 13:25:21:143 2021 xifeimenkou IFNET/3/PHY_UPDOWN: Physical state on the interface Vlan-interface1 changed to up. %Jan 6 13:25:21:150 2021 xifeimenkou IFNET/5/LINK_UPDOWN: Line protocol state on the interface Vlan-interface1 changed to up. %Jan 6 13:25:37:505 2021 xifeimenkou CWC/6/CWC_AP_UP: Master CAPWAP tunnel to AC 192.168.0.100 went up. %Jan 13 08:54:55:033 2021 xifeimenkou IFNET/3/PHY_UPDOWN: Physical state on the interface GigabitEthernet1/0/1 changed to down. %Jan 13 08:54:55:041 2021 xifeimenkou IFNET/5/LINK_UPDOWN: Line protocol state on the interface GigabitEthernet1/0/1 changed to down. %Jan 13 08:54:55:045 2021 xifeimenkou IFNET/3/PHY_UPDOWN: Physical state on the interface Vlan-interface1 changed to down. %Jan 13 08:54:55:051 2021 xifeimenkou IFNET/5/LINK_UPDOWN: Line protocol state on the interface Vlan-interface1 changed to down. %Jan 13 08:54:55:056 2021 xifeimenkou CWC/4/CWC_AP_DOWN: Master CAPWAP tunnel to AC 192.168.0.100 went down. Reason: AP interface used for CAPWAP tunnel went down. %Jan 13 08:54:58:034 2021 xifeimenkou IFNET/3/PHY_UPDOWN: Physical state on the interface GigabitEthernet1/0/1 changed to up. %Jan 13 08:54:58:038 2021 xifeimenkou IFNET/5/LINK_UPDOWN: Line protocol state on the interface GigabitEthernet1/0/1 changed to up. %Jan 13 08:54:58:051 2021 xifeimenkou IFNET/3/PHY_UPDOWN: Physical state on the interface Vlan-interface1 changed to up. %Jan 13 08:54:58:054 2021 xifeimenkou IFNET/5/LINK_UPDOWN: Line protocol state on the interface Vlan-interface1 changed to up. %Jan 13 08:55:16:177 2021 xifeimenkou CWC/6/CWC_AP_UP: Master CAPWAP tunnel to AC 192.168.0.100 went up.
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最佳答案
排查下链路问题
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我查了3台AP,都是这么报错的 。。。。
我查了3台AP,都是这么报错的 。。。。
您好,请知:
看到端口有UP DOWN的日志反馈,以下是排查要点,请参考:
1、检查物理链路是否有问题。
2、检查端口是否有CRC错包。
3、可尝试使用替换法更换端口、链路看下。
4、其次检查是否有可能存在环路。
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有错包 ,端口7(AP)+11(接入到核心交换机)都有 ,但是另外还有其他的AP也是报这样的错 ,但是对应的端口没有错包
有错包 ,端口7(AP)+11(接入到核心交换机)都有 ,但是另外还有其他的AP也是报这样的错 ,但是对应的端口没有错包
排查局域网里面是不是有多个DHCP服务器在发地址.
AP如果获取到了非法地址池里面的地址,那么就联系不上AC了,联系不上AC就会离线.
离线就会重启,重启过程中率先获取到AC上面合法的IP地址话,又会正常上线的.
最简单的排查方法就是:
踢除AC,PC接在下面的交换机上面,然后看看能不能自动获取到地址,如果能,那可能就是同一个局域网里面存在多个DHCP server.
此时浏览器登录获取的ip地址对应的网关,不出意外就可以找到该设备
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你好,不行的,同一个vlan网络里面最好不要出现多设备同时分发地址,这个是很糟糕的规划。 解决办法有很多: 1直接找出非法dhcp server,重新规划调试网络 2开启dhcp snooping防私接dhcp server功能,将交换机上行口设为trust接口 3在每个AP上指定AC的ip地址为192.168.0.100(不建议) 最好的解决办法是重新调整网络,规范化网络
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AP在天花板 ,线路走到机柜配线架上 ,然后接一根短网线(不是手工线)到AC