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[宽带症候群] TTL 为何有时是 51，有时是 49？

发表于

第一次
64 bytes from 13.26.7.208: icmp_seq=4 ttl=51 time=168 ms
64 bytes from 13.26.7.208: icmp_seq=5 ttl=51 time=168 ms
64 bytes from 13.26.7.208: icmp_seq=6 ttl=51 time=173 ms
64 bytes from 13.26.7.208: icmp_seq=7 ttl=51 time=168 ms

第二次
64 bytes from 13.26.7.208: icmp_seq=4 ttl=49 time=168 ms
64 bytes from 13.26.7.208: icmp_seq=5 ttl=49 time=168 ms
64 bytes from 13.26.7.208: icmp_seq=6 ttl=49 time=173 ms
64 bytes from 13.26.7.208: icmp_seq=7 ttl=49 time=168 ms

tracert 的结果总共是 13 跳

得出的结果，客户端与服务端 均无改变。

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