[AusNOG] High latency between TPG and Vocus - Victoria

Roy Adams roy at racs.com.au
Tue Aug 25 17:05:28 EST 2020


Forgot to link WinMTR for you:
https://sourceforge.net/projects/winmtr/

Kindly,

ROY ADAMS* | *P 07 3040 5010  | Web: http://www.racs.com.au/ | Wiki:
https://ex.racs.com.au:444/ | eMail: mailto:roy at racs.com.au
<roy at racs.com.au>
A positive attitude causes a chain reaction of positive thoughts, events,
and outcomes.
If you think it's expensive to hire a professional to do the job, wait
until you hire an amateur - Red Adair.
Life is a journey through a series of adventures... Live them, love them,
hate them, but never give up on your dreams, desires, and goals.
Have you been good today? ಠ_ಠ


On Tue, 25 Aug 2020 at 16:58, Roy Adams <roy at racs.com.au> wrote:

> Hi Giles,
>
> Using ICMP traces to measure traffic loss is fraught with danger due to
> intermediate routers dropping unimportant traffic like ICMP.
> Drawing conclusions regarding packet loss also requires noting the same or
> higher degree of packet loss further down the trace, among many other
> factors (see further below)
> A double end trace (one initiated form each end) is required from
> 124.19.69.102 to 27.32.160.196, and also from 27.32.160.196 to
> 124.19.69.102.
> This could well show that the trace in each direction follows a different
> path - i.e. asymmetric routing.
> mtr / WinMTR is a more reliable tool to do the above - you will need mtr
> profiles from each end to start painting a better picture.
>
> Some light reading on understanding traceroutes in general, well worth the
> read:
>
> http://www.nanog.org/meetings/nanog47/presentations/Sunday/RAS_Traceroute_N47_Sun.pdf
>
> I hope the above is of use.
> Here in the Philippines, we have learned some hard lessons about making
> assumptions about traffic loss.
>
> Kindly,
>
> ROY ADAMS* | *P 07 3040 5010  | Web: http://www.racs.com.au/ | Wiki:
> https://ex.racs.com.au:444/ | eMail: mailto:roy at racs.com.au
> <roy at racs.com.au>
> A positive attitude causes a chain reaction of positive thoughts, events,
> and outcomes.
> If you think it's expensive to hire a professional to do the job, wait
> until you hire an amateur - Red Adair.
> Life is a journey through a series of adventures... Live them, love them,
> hate them, but never give up on your dreams, desires, and goals.
> Have you been good today? ಠ_ಠ
>
>
> On Tue, 25 Aug 2020 at 16:42, Giles Pollock <glp71s at gmail.com> wrote:
>
>> Not sure if anyone else is enjoying this experience, but I've seen a few
>> occasions where there seems to be degradation between TPG and Vocus in
>> Victoria. Pings go up by between 50-100ms with about 15% packet loss along
>> the way.
>>
>>   4     5 ms     6 ms     5 ms  10.20.22.139
>>   5     6 ms     6 ms     6 ms  27-32-160-196.static.tpgi.com.au
>> [27.32.160.196]
>>   6     6 ms     6 ms     6 ms  203-219-107-206.static.tpgi.com.au
>> [203.219.107.206]
>>   7    69 ms    67 ms    69 ms  203.8.177.110
>>   8     *        *        *     Request timed out.
>>   9     *        *        *     Request timed out.
>>  10    68 ms    68 ms    68 ms  124.19.61.93
>>  11    73 ms    72 ms    72 ms  124.19.69.102
>>
>>
>> Seen it come and go a few times over the last few weeks too. Makes
>> working from home a bit of a pain when remote sessions keep getting punted
>> out due to the packet loss!
>> _______________________________________________
>> AusNOG mailing list
>> AusNOG at lists.ausnog.net
>> http://lists.ausnog.net/mailman/listinfo/ausnog
>>
>
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