[AusNOG] High latency between TPG and Vocus - Victoria
glp71s at gmail.com
Tue Aug 25 17:27:20 EST 2020
Much the same deal it seems with WinMTR... ICMP can only get you so far.
Standout seems to be 188.8.131.52 where the latency spikes and the packet
Host % Sent Recv Best Avrg Wrst Last
192.168.1.129 0 200 200 0 0 2 0
192.168.1.1 0 200 200 0 0 1 0
192.168.0.1 0 200 200 1 1 5 1
10.20.22.139 0 200 200 5 5 13 5
27-32-160-196.static.tpgi.com.au 0 200 200 5 5 13 6
203-219-107-206.static.tpgi.com.au 0 200 200 5 6 13 6
184.108.40.206 6 164 155 54 66 77 68
Request timed out. 100 40 0 0 0 0 0
Request timed out. 100 40 0 0 0 0 0
220.127.116.11 7 160 150 0 65 74 68
18.104.22.168 7 160 150 0 69 78 67
static-22.214.171.124.in-addr.VOCUS.net.au 8 152 140 56 68 84 68
ip-126.96.36.199.in-addr.VOCUS.net.au 7 160 150 57 68 96 70
Not overly surprising results, although at least the packet loss seems to
be reducing a bit now. I did the right thing and contacted my service
provider as well to log a ticket on their end (hello to anyone who might
end up with the escalation! :-D )
On Tue, Aug 25, 2020 at 5:08 PM Roy Adams <roy at racs.com.au> wrote:
> Ahh, awesome, just sent another with link to WinMTR.
> I try to draft emails so that others who don't know this stuff also get
> some learning/help.
> I hope my email came across ok.
> I am sure the list would be interested in your findings.
> Don't forget when pasting those text traces to change the font to "Fixewd
> Width", or they are hard to read in emails :)
> 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 17:06, Giles Pollock <glp71s at gmail.com> wrote:
>> Agreed Roy, especially with how much ICMP traffic now gets messed with
>> compared to other protocols. At best all it really gives me is a comparison
>> between what I normally see and what I'm seeing at the moment. That and my
>> constantly dying RDP and SSH sessions to various other hosts in the same
>> Not that it can be relied on either, but running a traceroute from the
>> hosts on the Vocus link back to me shows asymmetric routing as well.
>> On Tue, Aug 25, 2020 at 4:59 PM Roy Adams <roy at racs.com.au> wrote:
>>> Hi Giles,
>>> Using ICMP tracesw 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
>>> 188.8.131.52 to 184.108.40.206, and also from 220.127.116.11 to
>>> 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:
>>> I hope the above is of use.
>>> Here in the Philippines, we have learned some hard lessons about making
>>> assumptions about traffic loss.
>>> 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
>>>> 6 6 ms 6 ms 6 ms 203-219-107-206.static.tpgi.com.au
>>>> 7 69 ms 67 ms 69 ms 18.104.22.168
>>>> 8 * * * Request timed out.
>>>> 9 * * * Request timed out.
>>>> 10 68 ms 68 ms 68 ms 22.214.171.124
>>>> 11 73 ms 72 ms 72 ms 126.96.36.199
>>>> 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
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the AusNOG