There was a useful nanog presentation somewhere that explained this really well in particular reading traceroutes correctly
Kind regards James Greig > On 7 Jul 2016, at 20:17, Phillip Lynn <phillip.l...@netwolves.com> wrote: > > Hi all, > > I am writing because I do not understand what is happening. I ran mtr > against our email server and www.teco.comand below are the results. I am not > a network engineer so I am at a loss. I think what I am seeing is maybe a > hand off issue, between Frontier and Level3Miami2. If I am correct then what > can I do? > > My system is running Centos 6.5 Linux. > > Thanks, > > Phillip > > > > (! 1011)-> sudo mtr -r netwolves.securence.com > HOST: xxxxx@netwolves.comLoss% Snt Last Avg Best Wrst StDev > 1. 172.24.109.1 0.0% 10 0.6 0.6 0.6 0.7 0.0 > 2. lo0-100.TAMPFL-VFTTP-322.gni 0.0% 10 3.2 2.0 1.0 4.3 1.2 > 3. 172.99.44.214 0.0% 10 4.0 4.9 2.3 6.9 1.5 > 4. ae8---0.scr02.mias.fl.fronti 0.0% 10 9.3 9.1 7.5 9.8 1.0 > 5. ae1---0.cbr01.mias.fl.fronti 0.0% 10 8.9 9.1 7.6 9.7 0.7 > 6. lag-101.ear3.Miami2.Level3.n 80.0% 10 9.0 8.9 8.8 9.0 0.1 > 7. 10ge9-14.core1.mia1.he.net 0.0% 10 14.3 13.0 7.6 18.1 4.3 > 8. 10ge1-1.core1.atl1.he.net 0.0% 10 25.6 33.2 22.4 99.7 23.6 > 9. 10ge10-4.core1.chi1.he.net 0.0% 10 45.6 51.8 45.5 82.7 12.5 > 10. 100ge14-2.core1.msp1.he.net 0.0% 10 53.6 63.9 53.6 125.2 21.8 > 11. t4-2-usi-cr02-mpls-usinterne 0.0% 10 53.2 73.1 53.2 225.6 54.0 > 12. v102.usi-cr04-mtka.usinterne 0.0% 10 53.2 53.9 53.2 55.3 0.6 > 13. netwolves.securence.com 0.0% 10 53.4 53.9 53.4 55.4 0.7 > > (! 1014)-> sudo mtr -r www.teco.com > HOST: xxxxx@netwolves.comLoss% Snt Last Avg Best Wrst StDev > 1. 172.24.109.1 0.0% 10 0.6 0.6 0.6 0.7 0.0 > 2. lo0-100.TAMPFL-VFTTP-322.gni 0.0% 10 104.8 81.4 1.1 113.2 43.2 > 3. 172.99.47.198 0.0% 10 115.0 77.8 2.9 115.0 40.2 > 4. ae7---0.scr01.mias.fl.fronti 0.0% 10 111.1 80.2 8.5 113.5 41.3 > 5. ae0---0.cbr01.mias.fl.fronti 0.0% 10 105.9 82.2 7.6 115.4 33.8 > 6. lag-101.ear3.Miami2.Level3.n 70.0% 10 116.1 80.2 8.5 116.1 62.0 > 7. NTT-level3-80G.Miami.Level3. 0.0% 10 110.0 81.5 9.0 120.3 41.9 > 8. ae-3.r20.miamfl02.us.bb.gin. 0.0% 10 119.8 84.0 10.0 119.8 38.5 > 9. ae-4.r23.asbnva02.us.bb.gin. 10.0% 10 137.4 107.6 30.1 142.7 45.7 > 10. ae-2.r05.asbnva02.us.bb.gin. 0.0% 10 135.0 109.9 36.6 140.0 39.1 > 11. xe-0-9-0-8.r05.asbnva02.us.c 0.0% 10 147.5 125.6 49.4 165.5 41.1 > 12. 24.52.112.21 0.0% 10 158.6 124.0 49.6 161.3 41.5 > 13. 24.52.112.42 0.0% 10 151.0 127.7 52.2 159.0 41.2 > 14. ??? 100.0 10 0.0 0.0 0.0 0.0 0.0 > > -- > Phillip Lynn > Software Engineer III > NetWolves > Phone:813-579-3214 > Fax:813-882-0209 > Email: phillip.l...@netwolves.com > www.netwolves.com >
