packet loss question

Mel Beckman mel at beckman.org
Mon Jul 11 00:26:15 UTC 2016


James,

You may be thinking of this presentation: 

https://www.nanog.org/meetings/nanog47/presentations/Sunday/RAS_Traceroute_N47_Sun.pdf

 -mel beckman

> On Jul 10, 2016, at 4:49 PM, James Greig <James at mor-pah.net> wrote:
> 
> 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.lynn at 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 at 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 at 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.lynn at netwolves.com
>> www.netwolves.com
>> 
> 


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