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Ping通≠网络 OK,Ping不通也不一定真断了,背后的隐藏 ...
Ping 通≠网络 OK,Ping 不通也不一定真断了,到底哪些隐藏问题容易被掩盖或误判? 一、Ping 通了,但业务却访问异常? 1. ICMP 通、TCP 断:协议栈不一样 ping 使用的是 ICMP 协议,很多时候网络设备或服务器并未限制 ICMP 流量,但却对 TCP 或 UDP 做了限制,比如: ...
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