Roy 10,832 / 0 Report Post Posted March 26, 2019 Hi everyone, I just wanted to let you know that earlier today the routing from our physical machine to our Dallas PoP started having issues. For whatever reason, it started routing from Dallas to NYC to all the way back in Dallas. This is adding ~40ms latency overhead to the network. We have contacted our physical hosting provider and they're contacting the peer they are using who should be able to fix this issue. Once it is fixed, I will reply to this thread. Thanks. Share this post Link to post Share on other sites More sharing options...
Roy 10,832 / 0 Report Post Posted March 26, 2019 MTR example from physical hosting provider to Dallas PoP: Host Loss% Snt Last Avg Best Wrst StDev 1. x.x.x.x 0.0% 8 0.8 0.8 0.6 0.9 0.0 2. x.x.x.x 0.0% 8 0.8 0.8 0.6 1.0 0.0 3. 66-206-18-73.static.hvvc.us 0.0% 8 12.4 14.8 11.7 22.2 3.4 4. ??? 5. ??? 6. ??? 7. ??? 8. ??? 9. nyk-b5-link.telia.net 0.0% 7 46.1 46.9 45.6 53.7 2.9 10. dls-b22-link.telia.net 0.0% 7 63.7 63.7 63.6 63.8 0.0 11. vultr-ic-318447-dls-b22.c.telia.net 14.3% 7 65.3 64.7 64.1 65.8 0.6 12. ??? First two hops were removed. As you can see, it is being routed from Dallas to NYC and all the way back to Dallas adding ~65ms latency overhead to the network which is terrible. Our physical hosting provider has confirmed that this is due to Hivelocity[AS29802] (as @Dreae expected) and contacted them regarding this issue. We're hoping this is fixed soon! Thanks. Share this post Link to post Share on other sites More sharing options...
Roy 10,832 / 0 Report Post Posted March 26, 2019 Earlier, the physical server started routing to the NYC PoP for whatever reason. The route was using Cogent[AS174]. We already prepended to Cogent 1x hops. So we tried raising it to 2x hops via: bgp_community.add ((64602,174)); In the BIRD configuration export filter on the NYC PoP. This changed the route back to an optimized route of the Dallas PoP! 1. x.x.x.x 0.0% 10 0.7 0.7 0.7 0.8 0.0 2. x.x.x.x 0.0% 10 0.8 0.8 0.6 0.9 0.0 3. 66-206-18-73.static.hvvc.us 0.0% 10 17.4 16.3 11.4 21.0 2.7 4. ??? 5. ??? 6. ??? 7. ??? 8. 66-206-30-6.static.hvvc.us 0.0% 9 0.5 0.5 0.5 0.6 0.0 9. ae4-703.cr6-dal3.ip4.gtt.net 0.0% 9 0.7 4.4 0.5 30.6 9.9 10. xe-7-2-0.cr0-dal2.ip4.gtt.net 0.0% 9 0.9 0.8 0.7 0.9 0.0 11. ip4.gtt.net 0.0% 9 3.8 4.6 1.3 14.6 5.4 12. ??? 13. ??? 14. 92.119.148.15 0.0% 9 0.9 0.9 0.8 0.9 0.0 Let's hope it stays this way This problem should be completely gone when we get our own ASN and get a PoP server using the same hosting provider as our physical machine. Thanks. Share this post Link to post Share on other sites More sharing options...