两台 VPS 来回链路不同？

两台VPS，一台是广州电信，另一台是新加坡。
附上mtr
- 新加坡mtr广州
```
My traceroute [v0.75]
sg (0.0.0.0) Tue Aug 11 11:54:25 2015
Resolver: Received error response 2. (server failure)er of fields quit
Packets Pings
Host Loss% Snt Last Avg Best Wrst StDev
1. ovzssd-01.oneasiahost.com 0.0% 443 0.0 0.0 0.0 2.3 0.2
2. edge-3.v3.sg1.sg.gs 0.2% 443 0.7 1.1 0.3 49.5 5.1
3. edge-4.v3.sg1.sg.gs 0.0% 443 0.4 1.9 0.3 82.6 8.2
4. 116.51.23.65 0.2% 443 1.0 2.5 0.7 83.6 8.3
5. xe-2-0-3.r21.sngpsi05.sg.bb.gin. 0.0% 443 2.6 4.7 1.4 50.6 8.4
6. ae-4.r23.tokyjp01.jp.bb.gin.ntt. 0.0% 443 68.9 74.5 68.9 203.6 18.8
7. p16-3.chinanet.tokyjp01.jp.bb.gi 0.0% 443 113.5 87.6 80.0 171.6 15.0
p16-1.chinanet.tokyjp01.jp.bb.gin.ntt.net
8. 202.97.60.29 0.0% 443 114.1 95.0 82.3 144.4 10.3
9. 202.97.61.225 0.2% 443 110.6 93.6 80.8 494.7 21.5
10. 202.97.33.185 19.2% 443 107.9 108.0 83.9 183.8 20.1
11. 113.108.208.218 17.2% 442 110.3 101.0 86.2 175.4 13.1
12. 113.108.209.234 19.7% 442 105.4 95.0 83.8 131.7 10.0
13. 121.14.60.122 16.1% 442 106.9 96.4 85.0 125.0 9.7
14. ???
15. ???
16. 203.195.236.xxx 14.9% 442 110.4 95.9 84.1 126.6 10.0
```
貌似是经过了日本。

- 广州mtr新加坡
```
My traceroute [v0.75]
gz (0.0.0.0) Tue Aug 11 19:55:45 2015
Keys: Help Display mode Restart statistics Order of fields quit
Packets Pings
Host Loss% Snt Last Avg Best Wrst StDev
1. ???
2. ???
3. ???
4. ???
5. ???
6. 113.108.208.225 0.0% 513 4.7 3.5 1.3 38.2 2.7
7. 202.97.33.198 0.0% 513 5.0 4.7 1.4 73.1 6.0
8. 202.97.60.197 94.9% 513 7.1 11.1 1.9 87.8 17.6
9. 202.97.61.30 0.2% 513 8.5 9.6 5.9 540.6 23.6
10. 202.97.122.30 0.0% 510 6.3 6.8 5.8 21.9 1.5
11. TenGE10-3.br03.hkg04.pccwbtn.net 14.7% 510 11.9 18.4 9.4 233.2 29.7
12. TenGE10-3.br03.hkg04.pccwbtn.net 15.9% 510 28.9 19.5 9.2 222.5 32.8
13. 63-216-82-250.static.pccwglobal. 14.1% 510 9.9 11.5 6.1 60.4 3.9
14. core-1.v3.hk1.sg.gs 18.2% 510 36.9 57.7 12.9 315.0 60.7
15. core-1.v53.sg3.sg.gs 7.6% 510 126.1 115.6 82.3 143.2 15.2
16. core-3.v41.sg1.sg.gs 26.5% 509 128.2 121.3 87.8 194.3 16.2
17. ovzssd-01.oneasiahost.com 0.4% 509 79.4 90.5 79.3 125.1 9.2
18. oah.wdslb.com 28.1% 508 119.1 117.3 85.3 143.8 15.7
```
走香港pccw