[ITNOG] GTT: congestione giornaliera Milano
Brian Turnbow
b.turnbow@twt.it
Lun 7 Feb 2022 17:23:31 CET
Giusto per info a tutti
Io lo vedo sempre tra cr6.fra e cr2.mil
ae18.cr6-fra2.ip4.gtt.net (154.14.78.153) [AS8355/AS3257] 5.256 ms 5.222 ms 5.506 ms 5.495 ms 5.899 ms
ae17.cr2-mil3.ip4.gtt.net (89.149.128.26) [AS3257] 81.798 ms 91.305 ms 91.660 ms 37.083 ms 52.425 ms
altri percorsi fra-mil non sono impatatti
da aws
46.33.66.6 | Traceroute from AWS AS16509 in Germany, Frankfurt 20 ip4.gtt.net (46.33.66.6) [AS3257] 10.918 ms * * * *
traceroute to 46.33.66.6 (46.33.66.6), 50 hops max, 60 byte packets
1 ec2-54-93-0-75.eu-central-1.compute.amazonaws.com (54.93.0.75) [AS16509/AS14618] 64.053 ms 64.039 ms ec2-54-93-0-81.eu-central-1.compute.amazonaws.com (54.93.0.81) [AS16509/AS14618] 47.403 ms ec2-54-93-0-85.eu-central-1.compute.amazonaws.com (54.93.0.85) [AS16509/AS14618] 1.116 ms 1.100 ms
2 243.253.18.250 (243.253.18.250) [*] 0.203 ms 243.253.21.254 (243.253.21.254) [*] 0.249 ms 243.253.22.242 (243.253.22.242) [*] 0.283 ms 0.267 ms 243.253.18.250 (243.253.18.250) [*] 0.189 ms
3 240.0.88.29 (240.0.88.29) [*] 0.170 ms 240.0.88.17 (240.0.88.17) [*] 0.181 ms 240.0.88.18 (240.0.88.18) [*] 0.171 ms 240.0.88.16 (240.0.88.16) [*] 0.162 ms 240.0.88.18 (240.0.88.18) [*] 0.221 ms
4 242.1.84.241 (242.1.84.241) [*] 0.571 ms 242.1.84.225 (242.1.84.225) [*] 0.360 ms 242.1.84.241 (242.1.84.241) [*] 0.669 ms 242.1.84.97 (242.1.84.97) [*] 0.389 ms 242.1.84.225 (242.1.84.225) [*] 0.137 ms
5 100.95.20.142 (100.95.20.142) [*] 9.217 ms 100.95.4.129 (100.95.4.129) [*] 3.351 ms 100.95.20.136 (100.95.20.136) [*] 0.711 ms 100.95.20.131 (100.95.20.131) [*] 1.306 ms 100.95.20.140 (100.95.20.140) [*] 1.219 ms
6 100.100.4.68 (100.100.4.68) [*] 0.702 ms 100.100.2.32 (100.100.2.32) [*] 0.704 ms 100.100.4.72 (100.100.4.72) [*] 1.456 ms 100.100.4.4 (100.100.4.4) [*] 1.483 ms 100.100.4.14 (100.100.4.14) [*] 1.456 ms
7 154.14.134.248 (154.14.134.248) [AS8355/AS3257] 9.159 ms ae7-74.cr1-fra6.ip4.gtt.net (213.254.216.125) [AS3257] 1.207 ms 154.14.134.248 (154.14.134.248) [AS8355/AS3257] 8.925 ms 154.14.139.244 (154.14.139.244) [AS8355/AS3257] 0.970 ms ae7-74.cr1-fra6.ip4.gtt.net (213.254.216.125) [AS3257] 2.406 ms
8 ae17.cr2-mil3.ip4.gtt.net (89.149.128.26) [AS3257] 85.531 ms 32.440 ms 85.572 ms 9.477 ms 76.126 ms
9 * * * * *
Da hetzner
46.33.66.6 | Traceroute from Hetzner AS24940 in Germany, Nuremberg 11 * * ip4.gtt.net (46.33.66.6) [AS3257] 77.390 ms * *
traceroute to 46.33.66.6 (46.33.66.6), 50 hops max, 60 byte packets
1 172.31.1.1 (172.31.1.1) [*] 16.343 ms 16.848 ms 16.850 ms 16.744 ms 16.843 ms
2 16890.your-cloud.host (136.243.183.14) [AS24940/AS33327] 0.526 ms 0.479 ms 0.484 ms 0.458 ms 0.442 ms
3 * * * * *
4 spine2.cloud1.fsn1.hetzner.com (85.10.251.189) [AS24940] 1.236 ms 0.872 ms spine1.cloud1.fsn1.hetzner.com (85.10.251.185) [AS24940] 0.872 ms spine2.cloud1.fsn1.hetzner.com (85.10.251.189) [AS24940] 0.826 ms 1.207 ms
5 core24.fsn1.hetzner.com (213.239.239.133) [AS24940] 0.345 ms core24.fsn1.hetzner.com (213.239.239.129) [AS24940] 0.484 ms core23.fsn1.hetzner.com (213.239.239.137) [AS24940] 6.960 ms 6.970 ms core24.fsn1.hetzner.com (213.239.239.133) [AS24940] 0.296 ms
6 core1.fra.hetzner.com (213.239.203.153) [AS24940] 7.820 ms 5.190 ms core1.fra.hetzner.com (213.239.229.77) [AS24940] 4.928 ms core1.fra.hetzner.com (213.239.203.153) [AS24940] 4.906 ms core1.fra.hetzner.com (213.239.229.77) [AS24940] 8.812 ms
7 ae18.cr6-fra2.ip4.gtt.net (154.14.78.153) [AS8355/AS3257] 5.256 ms 5.222 ms 5.506 ms 5.495 ms 5.899 ms
8 ae17.cr2-mil3.ip4.gtt.net (89.149.128.26) [AS3257] 81.798 ms 91.305 ms 91.660 ms 37.083 ms 52.425 ms
9 * * * * *
10 * * * * *
11 * * * * *
12 * * * * *
13 * * ip4.gtt.net (46.33.66.6) [AS3257] 66.930 ms * *
Da google
46.33.66.6 | Traceroute from Google AS15169 in Germany, Frankfurt 5 * ip4.gtt.net (46.33.66.6) [AS3257] 94.846 ms * * *
traceroute to 46.33.66.6 (46.33.66.6), 50 hops max, 60 byte packets
1 ae8.cr6-fra2.ip4.gtt.net (46.33.79.249) [AS3257] 17.992 ms 17.975 ms 17.960 ms 17.932 ms 18.073 ms
2 ae17.cr2-mil3.ip4.gtt.net (89.149.128.26) [AS3257] 77.504 ms 87.772 ms 87.777 ms 55.593 ms 77.529 ms
3 * * * * *
4 * * * * *
5 * ip4.gtt.net (46.33.66.6) [AS3257] 94.846 ms * * *
Suggerisco di aprire TT se avete GTT come transit
BRIAN TURNBOW
CTO
TWT S.p.A.
> -----Original Message-----
> From: itnog <itnog-bounces@lists.itnog.it> On Behalf Of Lukas Tribus
> Sent: Monday, February 7, 2022 3:23 PM
> To: itnog@lists.itnog.it
> Subject: [ITNOG] GTT: congestione giornaliera Milano
>
> Buon giorno,
>
>
> vi informo, magari a qualcuno serve questa informazione, che da una
> settimana ca, riscontriamo congestione giornaliera sulla rete GTT fra
> Francoforte e Milano.
>
> La congestione inizia nel primo pomeriggio e incrementa pian piano, con un
> peak la sera (classico comportamento congestione verso eyeball). I clienti di
> transito di GTT a Milano sono impattati. Il packet-loss misurato domenica sera
> era intorno ai 30% con 200ms di latenza. Nei giorni scorsi i peak erano intorno
> ai 11~12% PL con latenza di oltre 100ms.
>
> La direzione della congestione è da Francoforte verso Milano, questo è stato
> confermato con vari metodi (incluso rerouting di traffico, Hetzner per
> esempio ha spostato traffico verso i prefissi di TWT da GTT su NTT,
> workaround che funziona ma ovviamente solo per TWT).
>
>
> Per misurare in tempo reale (da Hetzner):
>
> Smokeping (vari destinazioni che evidenziano packet-loss e latenza, verso le
> P2P fra GTT e i suoi clienti ma anche host in quelli reti):
> https://smoke.ltri.eu/smokeping/smokeping.cgi?target=External.GTT
>
> LG dallo stesso host che fa le misure:
> https://lg.ltri.eu/
>
>
> MTR:
>
> Host 77.43.16.1 (Irideos/ex MC Link) 06/02 20:16 (30% PL, 200ms latenza)
>
> lukas@htznr2:~$ mtr -rs1000 -c1000 77.43.16.1
> Start: 2022-02-06T20:16:34+0100
> HOST: htznr2 Loss% Snt Last Avg Best Wrst StDev
> 1.|-- _gateway 0.0% 1000 5.9 4.8 2.4 24.5 1.4
> 2.|-- 10114.your-cloud.host 0.0% 1000 0.4 0.3 0.2 4.8 0.2
> 3.|-- ??? 100.0 1000 0.0 0.0 0.0 0.0 0.0
> 4.|-- 85-10-250-153.clients.you 0.0% 1000 1.2 4.9 0.8 88.6 11.7
> 5.|-- spine12.cloud1.nbg1.hetzn 0.0% 1000 1.0 4.5 0.8 72.9 10.7
> 6.|-- 213-239-239-121.clients.y 0.1% 1000 0.8 2.1 0.4 34.1 3.5
> 7.|-- core1.fra.hetzner.com 0.0% 1000 28.5 12.4 3.5 50.1 8.1
> 8.|-- ae18.cr6-fra2.ip4.gtt.net 0.0% 1000 4.1 6.7 3.6 497.9 18.3
> 9.|-- et-5-1-0.cr0-mil2.ip4.gtt 29.6% 1000 199.6 200.9 163.2 252.7 7.3
> 10.|-- alpikom-gw.ip4.gtt.net 30.1% 1000 200.8 196.6 165.5 213.0 5.1
> 11.|-- gw2-mi-te0100.mclink-net. 31.2% 1000 213.1 211.0 177.5 223.7 5.2
> 12.|-- gw2-rm-gi0001.mclink-net. 30.9% 1000 207.6 205.7 178.3 227.8 5.5
> 13.|-- 213.21.132.39 29.7% 1000 206.3 205.9 174.7 223.1 5.4
> 14.|-- 213.21.132.69 30.6% 1000 212.1 208.7 176.0 225.4 5.8
> 15.|-- 213.21.130.142 32.5% 1000 207.3 205.1 169.0 291.7 7.8
> 16.|-- net77-43-16-001.mclink.it 29.2% 1000 213.6 212.2 174.3 284.2 7.1
> lukas@htznr2:~$
>
>
> Host 77.43.16.1 (Irideos/ex MC Link) 07/02 00:30 (qua tutto ok)
>
> lukas@htznr2:~$ mtr -rs1000 -c1000 77.43.16.1
> Start: 2022-02-07T00:30:15+0100
> HOST: htznr2 Loss% Snt Last Avg Best Wrst StDev
> 1.|-- _gateway 0.0% 1000 5.7 4.8 2.4 26.1 1.6
> 2.|-- 10114.your-cloud.host 0.0% 1000 0.4 0.3 0.2 2.5 0.2
> 3.|-- ??? 100.0 1000 0.0 0.0 0.0 0.0 0.0
> 4.|-- 85-10-250-153.clients.you 0.0% 1000 1.2 4.6 0.8 101.5 11.3
> 5.|-- spine12.cloud1.nbg1.hetzn 0.0% 1000 24.9 4.1 0.8 81.3 10.5
> 6.|-- 213-239-239-121.clients.y 0.0% 1000 0.7 1.9 0.4 35.9 3.5
> 7.|-- core1.fra.hetzner.com 0.0% 1000 3.7 5.6 3.5 39.8 4.3
> 8.|-- ae18.cr6-fra2.ip4.gtt.net 0.0% 1000 3.8 6.4 3.5 89.0 8.8
> 9.|-- et-5-1-0.cr0-mil2.ip4.gtt 0.0% 1000 18.9 19.3 18.3 74.3 4.2
> 10.|-- alpikom-gw.ip4.gtt.net 0.0% 1000 18.8 18.8 18.6 23.5 0.3
> 11.|-- gw2-mi-te0100.mclink-net. 0.0% 1000 33.3 33.1 32.9 40.4 0.4
> 12.|-- gw2-rm-gi0001.mclink-net. 0.0% 1000 30.3 28.2 27.9 79.8 1.9
> 13.|-- 213.21.132.39 0.0% 1000 28.2 28.1 27.9 66.6 1.5
> 14.|-- 213.21.132.69 0.0% 1000 27.7 27.6 27.4 34.9 0.4
> 15.|-- 213.21.130.142 0.0% 1000 27.5 28.1 27.3 220.7 8.4
> 16.|-- net77-43-16-001.mclink.it 0.0% 1000 30.8 31.4 30.4 148.9 6.7
> lukas@htznr2:~$
>
> Host 77.43.16.1 (Irideos/ex MC Link) 07/02 14:36 (3% PL, 76ms latenza)
>
> lukas@htznr2:~$ mtr -rs1000 -c1000 77.43.16.1
> Start: 2022-02-07T14:36:23+0100
> HOST: htznr2 Loss% Snt Last Avg Best Wrst StDev
> 1.|-- _gateway 0.0% 1000 6.6 4.8 2.4 22.9 1.5
> 2.|-- 10114.your-cloud.host 84.4% 1000 0.3 0.3 0.2 1.4 0.1
> 3.|-- ??? 100.0 1000 0.0 0.0 0.0 0.0 0.0
> 4.|-- 85-10-250-153.clients.you 0.0% 1000 1.1 4.5 0.8 80.8 11.5
> 5.|-- spine12.cloud1.nbg1.hetzn 0.0% 1000 1.2 4.8 0.8 159.2 12.4
> 6.|-- 213-239-239-121.clients.y 0.0% 1000 0.7 2.0 0.4 47.6 4.1
> 7.|-- core1.fra.hetzner.com 9.3% 1000 4.3 5.4 3.5 45.5 4.7
> 8.|-- ae18.cr6-fra2.ip4.gtt.net 0.0% 1000 3.9 5.5 3.6 66.0 5.8
> 9.|-- et-5-1-0.cr0-mil2.ip4.gtt 3.4% 1000 72.1 76.7 21.7 144.2 16.4
> 10.|-- alpikom-gw.ip4.gtt.net 3.5% 1000 73.7 76.5 20.5 111.5 15.8
> 11.|-- gw2-mi-te0100.mclink-net. 2.7% 1000 90.5 91.1 35.7 124.9 15.4
> 12.|-- gw2-rm-gi0001.mclink-net. 3.6% 1000 79.6 86.1 37.7 121.9 15.2
> 13.|-- 213.21.132.39 3.7% 1000 75.8 85.8 32.3 117.6 15.6
> 14.|-- 213.21.132.69 3.0% 1000 78.4 87.7 30.9 330.5 20.2
> 15.|-- 213.21.130.142 3.4% 1000 79.7 87.8 30.3 224.9 18.4
> 16.|-- net77-43-16-001.mclink.it 5.0% 1000 93.7 91.9 36.4 210.8 18.4
> lukas@htznr2:~$
>
>
> Smokeping Host 77.43.16.1 (Irideos/ex MC Link):
> https://smoke.ltri.eu/smokeping/smokeping.cgi?displaymode=n;start=2022-
> 02-06%2003:32;end=now;target=External.GTT.AS5396IRIDEOShost
>
> MTR storici:
> 2022-02-01T19:10
> https://pastebin.com/raw/MSvuSuR0
>
> 2022-02-02T18:39
> https://pastebin.com/raw/zWD8GHGa
>
> 2022-02-03T21:33
> https://pastebin.com/raw/DHWDyi1g
>
> 2022-02-04T14:11
> https://pastebin.com/raw/qhrWZBQX
>
> 2022-02-06T20:16 (come sopra durante congestione)
> https://pastebin.com/raw/5bcsajmm
>
> 2022-02-07T00:30 (come sopra in assenza di congestione. qua tutto ok)
> https://pastebin.com/raw/i8PE9PR8
>
> 2022-02-07T14:36 (come sopra con 3%PL)
> https://pastebin.com/raw/bxhjQwbL
>
>
> Un ticket è stato aperto verso GTT il 01/02.
>
>
> cheers,
> lukas
>
> --
> Mailing list info: http://lists.itnog.it/listinfo/itnog
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