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Hmm, posted on saturday. Might it be related to a new law introduced on friday (with very little notice).
https://www.ispreview.co.uk/index.php/2022/04/russia...
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Also important to have some perspective here - this is a speed test server. Nobody has mentioned any actual services they use being hosted by MT that are affected by this.
+1
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I manually changed our routing to prefer NTT over Level3/Lumen for this prefix - it's a hop longer, but far lower latency (as it's not been routed to a different contrinent!)
I've also asked Mauritius Telecom if they'd like to peer over LINX...
While your quick response is to be congratulated (as obviously your primary goal is for your customers to get the best experience), what can be done to push a proper fix higher up the chain?
I checked Zen, Vodafone and Three, they all have problem with this route and aren't using level3 to get there. Surely this is a core routing issue and needs to be addressed?
I checked Cogent (a common peer amongst them all) and there seems to be no way for a normal human to contact them other than their info e-mail address. Wouldn't an ISP have more clout here?
If they do as he requests on the LINX peering, that might work for all the other isp's.
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Register (or login) on our website and you will not see this ad.
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However, if you're paying Mauritius Telecom for something, and point out this divergence, they may well be willing to adjust their routing to keep their paying customers happy.
Might try messaging nPerf about this as it quite likely this anomaly was first noticed by @E300 in speed testing using their system.
In the case of MT it’s noted a 10Gbps connection (one of only three in the UK - the other two being OVH and DataPacket) - the rest being 1Gbps connections and a sole 2 Gbps connection.
I’m sure nPerf folk want their tools to be associated with accurate results 
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So I've had a response from nPerf Helpdesk this morning...
"Hello,
We have restricted the use of your server to Mauritius. This server will no longer be accessible in London.
Best regards
Virgile"
😂😂
Fair play Virgile, that's one way of tacking the problem...
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That is funny, so they've restricted a server that resides in London for those in Mauritius, I bet people are not going to be impressed with the speeds when testing from Mauritius.
Isn't one of the points of having multiple servers in different locations on speed tests to help find issues such as this? A big fail for nPerf then and I was getting my best speed test results from that 10Gbps Mauritius Telecom server on nPerf after the routing was fixed, probably because it wasn't ever being maxed out as most tests were going the roundabout route and slowed down 
Edited by E300 (Wed 18-May-22 13:27:16)
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Thought I'd add my results here although a bit late.
Cerberus Networks (FTTP):
| Text | 1
23
45
67
89
1011
12 | Tracing route to 197.227.5.218 over a maximum of 30 hops
1 <1 ms <1 ms <1 ms no-ptr.local [192.168.0.1]
2 6 ms 6 ms 6 ms thn-lns07-l6.cerberus.net.uk [46.37.48.1] 3 6 ms 6 ms 6 ms hex-gw06-te030-43.cerberus.net.uk [46.37.33.43]
4 7 ms 7 ms 6 ms te0-0-0-11.rcr21.b015534-1.lon01.atlas.cogentco.com [149.14.248.185] 5 7 ms 7 ms 7 ms be2186.ccr22.lon01.atlas.cogentco.com [154.54.61.70]
6 163 ms 163 ms 163 ms be2489.ccr51.jnb01.atlas.cogentco.com [154.54.88.222] 7 207 ms 207 ms 207 ms 206.249.0.154
8 207 ms 210 ms 207 ms 197.226.230.50 9 207 ms 207 ms 207 ms 197.226.230.4
10 207 ms 207 ms 207 ms 197.227.5.218 |
OVH via GRE tunnel from my network (server is in London):
| Text | 1
23
45
67
89
1011
1213
1415
16 | Tracing route to 197.227.5.218 over a maximum of 30 hops
1 <1 ms <1 ms <1 ms [redacted] [x.x.x.x]
2 * * * Request timed out. 3 7 ms 8 ms 7 ms [redacted]
4 * * * Request timed out. 5 * * * Request timed out.
6 * * * Request timed out. 7 8 ms 8 ms 8 ms be103.lon-drch-sbb1-nc5.uk.eu [91.121.215.118]
8 37 ms 12 ms 12 ms be101.rbx-g4-nc5.fr.eu [54.36.50.231] 9 15 ms 15 ms 15 ms par-gsw-sbb1-nc5.fr.eu [54.36.50.228]
10 30 ms 30 ms 38 ms be101.mrs-mrs2-sbb1-nc5.fr.eu [54.36.50.159] 11 * * * Request timed out.
12 30 ms 30 ms 30 ms mauritius.mrs.franceix.net [37.49.232.43] 13 46 ms 46 ms 47 ms 197.226.230.20
14 44 ms 44 ms 44 ms 197.227.5.218 |
The second result seems to go via France.
Edited by Ixel (Wed 18-May-22 13:58:52)
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Very much dumped in the "too hard basket" by nPerf
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Very much dumped in the "too hard basket" by nPerf
Or maybe the "Can't be ar...d"
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Very much dumped in the "too hard basket" by nPerf
Probably dumped in the basket where it shouldn't have been available to the UK to begin with, the complaints drew attention to it, and it was nailed down.
London is a legitimate location for Mauritius Telecom testing.
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