Question

我们在美国看到GCE的一些非常奇怪的路由/延迟问题：

$ traceroute fixdemo.fxcorporate.com
traceroute to fixdemo.fxcorporate.com (204.8.241.23), 30 hops max, 60 byte packets
 1  216.239.43.216 (216.239.43.216)  0.824 ms 216.239.46.192 (216.239.46.192)  0.822 ms 72.14.233.134 (72.14.233.134)  1.296 ms
 2  216.239.43.216 (216.239.43.216)  1.274 ms 216.239.46.192 (216.239.46.192)  0.976 ms 64.233.174.94 (64.233.174.94)  1.272 ms
 3  216.239.49.32 (216.239.49.32)  1.271 ms 64.233.174.94 (64.233.174.94)  1.261 ms  1.260 ms
 4  216.239.49.24 (216.239.49.24)  1.244 ms 216.239.46.190 (216.239.46.190)  2.066 ms 216.239.43.216 (216.239.43.216)  1.243 ms
 5  72.14.233.134 (72.14.233.134)  1.236 ms  1.235 ms 216.239.46.192 (216.239.46.192)  1.216 ms
 6  216.239.46.192 (216.239.46.192)  1.212 ms 216.239.43.218 (216.239.43.218)  0.788 ms 64.233.174.94 (64.233.174.94)  0.824 ms
 7  216.239.49.24 (216.239.49.24)  0.829 ms 216.239.43.216 (216.239.43.216)  0.781 ms 216.239.49.32 (216.239.49.32)  0.838 ms
 8  216.239.43.216 (216.239.43.216)  0.837 ms 64.233.174.94 (64.233.174.94)  1.045 ms 216.239.43.216 (216.239.43.216)  0.848 ms
 9  72.14.238.107 (72.14.238.107)  15.354 ms  15.389 ms 209.85.241.23 (209.85.241.23)  13.589 ms
10  72.14.237.131 (72.14.237.131)  13.596 ms  13.599 ms  13.587 ms
11  209.85.254.121 (209.85.254.121)  13.594 ms  11.643 ms  13.533 ms
12  * * *
13  ae4.cr1.ord2.us.above.net (64.125.28.49)  14.256 ms  13.891 ms  11.877 ms
14  ae0.cr2.ord2.us.above.net (64.125.20.246)  13.883 ms  13.975 ms  12.056 ms
15  ae6.cr2.lga5.us.above.net (64.125.24.29)  38.438 ms  40.585 ms  40.586 ms
16  ae3.er4.lga5.us.above.net (64.125.31.246)  42.630 ms  42.603 ms  41.923 ms
17  208.185.12.62.IPYX-065351-ZYO.above.net (208.185.12.62)  215.528 ms  216.819 ms  216.719 ms
18  fixdemo.fxcorporate.com (204.8.241.23)  216.402 ms  216.298 ms  216.474 ms

Source位于纽约的us-central1-a，目的地。尽管如此，我们仍然看到traceroute和mtr的＆gt;延迟200 ms，从上述网络开始。欧洲 - 西1-a区域的源也存在同样的问题。我想这是从第17跳开始的一些严重不对称路由的结果。

知道如何解决这个问题吗？

Answer 1

你可能是对的，因为你知道解决路由问题并不简单，在互联网用户方面也做不了多少。

我想与Traceroute分享这篇关于故障排除的完善文档：

https://www.nanog.org/meetings/nanog45/presentations/Sunday/RAS_traceroute_N45.pdf

此致保罗

美国境内奇怪的Google Compute Engine路由

1 个答案: