I experience quite bad packet loss from a Data Center in Switzerland connecting to Hong Kong Azure Cloud, the traceroute shows that the connection is going directly to the msn.net net in the swissix pop, so it seems to me an issue on the msn.net, here are the details:
23.99.102.73 is the VM in the Azure Hong Kong Cloud, connection is initiated from 178.209.51.95 which is in data center in switzerland. We also started another VM in Azure Hong Kong Cloud and had same problem.
the tcpping shows very unstable connection, the traceroute shows that traffic goes onto msn.net (Microsoft) network almost immediately
root@ch-server:~# ./tcpping 23.99.102.73 4506
seq 0: tcp response from 23.99.102.73 (23.97.78.221) [open] 304.440 ms
seq 2: tcp response from 23.99.102.73 (23.97.78.221) [open] 302.700 ms
seq 3: tcp response from 23.99.102.73 (23.97.78.221) [open] 356.702 ms
seq 1: no response (timeout)
seq 4: tcp response from 23.99.102.73 (23.97.78.221) [open] 302.008 ms
seq 5: tcp response from 23.99.102.73 (23.97.78.221) [open] 301.895 ms
seq 6: tcp response from 23.99.102.73 (23.97.78.221) [open] 373.334 ms
seq 7: tcp response from 23.99.102.73 (23.97.78.221) [open] 303.215 ms
seq 8: tcp response from 23.99.102.73 (23.97.78.221) [open] 304.080 ms
seq 10: tcp response from 23.99.102.73 (23.97.78.221) [open] 302.361 ms
seq 11: tcp response from 23.99.102.73 (23.97.78.221) [open] 303.652 ms
seq 9: no response (timeout)
seq 12: tcp response from 23.99.102.73 (23.97.78.221) [open] 302.198 ms
seq 13: tcp response from 23.99.102.73 (23.97.78.221) [open] 368.365 ms
seq 14: tcp response from 23.99.102.73 (23.97.78.221) [open] 357.633 ms
seq 15: tcp response from 23.99.102.73 (23.97.78.221) [open] 369.920 ms
seq 16: tcp response from 23.99.102.73 (23.97.78.221) [open] 302.302 ms
seq 17: tcp response from 23.99.102.73 (23.97.78.221) [open] 302.948 ms
seq 18: tcp response from 23.99.102.73 (23.97.78.221) [open] 352.518 ms
seq 19: tcp response from 23.99.102.73 (23.97.78.221) [open] 366.697 ms
root@ch-server:~# traceroute 23.99.102.73
traceroute to 23.99.102.73 (23.99.102.73), 30 hops max, 60 byte packets
1 1-51-209-178.static.edis.at (178.209.51.1) 0.652 ms 0.816 ms 1.079 ms
2 e1-6.c-r1.cz41.nine.ch (5.148.160.118) 37.395 ms 37.431 ms 37.425 ms
3 swissix.microsoft.com (91.206.52.152) 0.834 ms 0.834 ms 0.991 ms
4 xe-0-1-1-0.fra-96cbe-1a.ntwk.msn.net (207.46.42.12) 7.181 ms 7.034 ms 7.205 ms
5 ae12-0.fra-96cbe-1b.ntwk.msn.net (191.234.84.121) 7.355 ms 7.361 ms 7.317 ms
6 ae6-0.ams-96c-1b.ntwk.msn.net (207.46.42.52) 14.547 ms 14.782 ms 14.443 ms
7 191.234.85.151 (191.234.85.151) 91.253 ms 91.285 ms 91.285 ms
8 191.234.85.38 (191.234.85.38) 19.869 ms ae3-0.lts-96cbe-1a.ntwk.msn.net (204.152.141.117) 20.033 ms 20.005 ms
9 ae14-0.lts-96cbe-1b.ntwk.msn.net (191.234.84.233) 20.658 ms 20.630 ms 20.802 ms
10 * * ae11-0.lon04-96cbe-1b.ntwk.msn.net (207.46.44.155) 91.453 ms
11 191.234.85.31 (191.234.85.31) 89.855 ms 90.889 ms 90.734 ms
12 ae10-0.was01-96cbe-1c.ntwk.msn.net (191.234.84.138) 94.755 ms 94.490 ms 94.507 ms
13 ae2-0.was01-96cbe-1a.ntwk.msn.net (191.234.81.224) 94.901 ms 94.911 ms 94.892 ms
14 ae9-0.atb-96cbe-1a.ntwk.msn.net (191.234.84.190) 106.630 ms 106.650 ms 106.648 ms
15 ae0-0.atb-96cbe-1b.ntwk.msn.net (191.234.81.167) 172.781 ms 172.210 ms 172.239 ms
16 * * *
17 * * *
18 ae2-0.lax-96cbe-1a.ntwk.msn.net (191.234.83.148) 150.792 ms 150.925 ms 150.893 ms
19 191.234.85.183 (191.234.85.183) 150.713 ms 150.764 ms 154.052 ms
20 ae2-0.tya-96cbe-1a.ntwk.msn.net (207.46.46.149) 302.081 ms 301.774 ms 302.218 ms
21 191.234.85.107 (191.234.85.107) 301.767 ms 301.017 ms 104.44.224.51 (104.44.224.51) 301.759 ms
22 191.234.85.105 (191.234.85.105) 300.886 ms 301.388 ms 301.713 ms
23 191.234.85.108 (191.234.85.108) 303.663 ms ae0-0.tyb-96cbe-1b.ntwk.msn.net (204.152.140.179) 301.729 ms 191.234.85.108 (191.234.85.108) 301.792 ms
24 ae4-0.hkg-96cbe-1b.ntwk.msn.net (204.152.141.62) 301.970 ms 301.452 ms 302.022 ms
25 104.44.224.0 (104.44.224.0) 302.254 ms ae0-0.hkg-96cbe-1a.ntwk.msn.net (191.234.80.198) 301.053 ms 104.44.224.0 (104.44.224.0) 302.233 ms
26 * ae13-0.hk2-96cbe-1a.ntwk.msn.net (207.46.38.73) 303.213 ms *
27 * * *
28 * * *
29 * * *
30 * * *