[AusNOG] Vocus NSW Latency

[Damien Gardner Jnr]

The short version is, your packet hits Vocus Sydney, and gets labelled
'this goes to the US'. Then the router looks at the TTL and goes 'oh, I
need to send back a TTL Expired'. Which inherits the label, and so gets
sent to the US. Then comes straight back (likely after being re-labelled
'this goes to AU).  Showing an increased TTL before the hops show you're
actually hitting the US.

It's actually a good way to tell that the provider is using MPLS ;)


On 1 September 2015 at 10:21, Ibrahim Kunduraci <Ibrahim at amanah.net.au>
wrote:

> Thanks guys – MPLS is new to me, excuse my ignorance :)
>
> Regards
>
> From: AusNOG on behalf of Brad Gould
> Date: Tuesday, 1 September 2015 10:12 am
> To: Matt Perkins, "ausnog at lists.ausnog.net"
>
> Subject: Re: [AusNOG] Vocus NSW Latency
>
> MPLS Ping.
>
>
>
> 7-->8 would be AU-->USA
>
>
>
>
>
> *From:* AusNOG [mailto:ausnog-bounces at lists.ausnog.net
> <ausnog-bounces at lists.ausnog.net>] *On Behalf Of *Matt Perkins
> *Sent:* Tuesday, 1 September 2015 09:31
> *To:* ausnog at lists.ausnog.net
> *Subject:* Re: [AusNOG] Vocus NSW Latency
>
>
>
> We are not seeing what you are from Vocus Sydney. I have always found
> Vocus support excellent. Why dont you give them a try.
>
> Matt
>
> On 1/09/2015 9:55 AM, Ibrahim Kunduraci wrote:
>
> Hi guys,
>
>
>
> Seeing high latency between host 114.31.193.37 (
> ten-1-3-0-782.bdr03.syd03.nsw.VOCUS.net.au) and host 114.31.192.34 (
> ten-0-1-0-7.cor01.syd04.nsw.vocus.net.au); RTT between the 2 hosts
> increase 10-fold.
>
>
>
> Tracing route to 4.2.2.2 over a maximum of 30 hops
>
>   1     2 ms     1 ms     1 ms  192.168.52.1
>   2    <1 ms    <1 ms    <1 ms  172.16.251.1
>   3    <1 ms    <1 ms    <1 ms  172.16.253.2
>   4     1 ms    <1 ms    <1 ms  203.83.194.209
>   5    10 ms    13 ms    10 ms  203.83.194.161
>   6    10 ms    10 ms    10 ms  203.83.192.42
>   7    10 ms    10 ms    11 ms  114.31.193.37
>   8   166 ms   167 ms   205 ms  114.31.192.34
>   9   167 ms   166 ms   179 ms  114.31.199.85
>  10   167 ms   167 ms   167 ms  114.31.199.59
>  11   167 ms   167 ms   167 ms  114.31.199.123
>  12   177 ms   177 ms   177 ms  46.33.90.49
>  13   176 ms   174 ms   174 ms  89.149.187.73
>  14   178 ms   177 ms   178 ms  4.68.62.213
>  15   167 ms   167 ms   175 ms  4.69.152.206
>  16   167 ms   167 ms   167 ms  4.2.2.2
>
> Trace complete.
>
>
>
>
>
> Any known issues?
>
>
>
> Thanks
>
>
>
>
> _______________________________________________
>
> AusNOG mailing list
>
> AusNOG at lists.ausnog.net
>
> http://lists.ausnog.net/mailman/listinfo/ausnog
>
>
>
>
> --
>
> /* Matt Perkins
>
>         Direct 1300 137 379        Spectrum Networks Ptd. Ltd.
>
>         Office 1300 133 299        matt at spectrum.com.au
>
>                                    Level 6, 350 George Street Sydney 2000
>
>         Spectrum Networks is a member of the Communications Alliance & TIO
>
> */
>
>
> _______________________________________________
> AusNOG mailing list
> AusNOG at lists.ausnog.net
> http://lists.ausnog.net/mailman/listinfo/ausnog
>
>


-- 

Damien Gardner Jnr
VK2TDG. Dip EE. GradIEAust
rendrag at rendrag.net -  http://www.rendrag.net/
--
We rode on the winds of the rising storm,
 We ran to the sounds of thunder.
We danced among the lightning bolts,
 and tore the world asunder
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.ausnog.net/pipermail/ausnog/attachments/20150901/c4c7db3e/attachment.html>