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<div class="moz-cite-prefix">TC2 and TC1 can be very sensitive to
arguably overzealous policing, requiring tight shaping at the NNI
(POI) and attention to Ethernet buffering, burst limits and
inter-packet gaps or packets will be dropped.<br>
Usually voice traffic on TC1 doesn't tickle the policing though
as the VoIP CODEC naturally leaves good spaces between the
packets. Data packets at TC2 different story.<br>
Check packet-loss during the throughput tests, in each direction
independently if you can - overzealous inbound policing or
inadequate outbound shaping will result in packets being tossed
due to micro-spikes in traffic, even when the long-term average
should be below the policing threshold - and that might be between
your upstream and the NBN kit at the POI, than between you and
your upstream network.<br>
<br>
Paul.<br>
<br>
<br>
On 13/06/2018 7:51 PM, David Fowler wrote:<br>
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<blockquote type="cite"
cite="mid:45FA50AC-A4F9-4B28-AC7B-E09D5C560693@datacom.com.au">
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<div class="WordSection1">
<p class="MsoNormal"><span lang="EN-GB">Hi Brad<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Sounds similar to our
issue. I’ve sent umpteen graphs and iPerf results to Vocus.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Can I ask what the
latency is on those links for you? Vocus are telling us it’s
the latency at ~45ms that is causing the issues. Various
throughput calculators are giving me anywhere between
8-9.5Mbps of bandwidth, yet we seem to be only able to
achieve around half.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Cheers<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">David.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<div>
<p class="MsoNormal"><span lang="EN-GB"> <o:p></o:p></span></p>
</div>
<div style="border:none;border-top:solid #B5C4DF
1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span
style="font-size:12.0pt;color:black">From: </span></b><span
style="font-size:12.0pt;color:black">Brad McEvoy
<a class="moz-txt-link-rfc2396E" href="mailto:brad.mcevoy@overthewire.com.au"><brad.mcevoy@overthewire.com.au></a><br>
<b>Date: </b>Wednesday, 13 June 2018 at 17:32<br>
<b>To: </b>David Fowler
<a class="moz-txt-link-rfc2396E" href="mailto:David.Fowler@datacom.com.au"><David.Fowler@datacom.com.au></a><br>
<b>Cc: </b><a class="moz-txt-link-rfc2396E" href="mailto:ausnog@lists.ausnog.net">"ausnog@lists.ausnog.net"</a>
<a class="moz-txt-link-rfc2396E" href="mailto:ausnog@lists.ausnog.net"><ausnog@lists.ausnog.net></a><br>
<b>Subject: </b>Re: [AusNOG] NBN FTTN TC2 Services WA
North West<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">Hi David, <o:p></o:p></p>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">I had a similar problem in the
Wollongong area. We connected up the first TC2 in that
area and when we tested the service, we never got the
order speed. I logged a fault with OPTUS and sent them
traffic graphs and test results. A day or two later they
fixed the issue, they hadn't provisioned or ordered the
back haul correctly. <o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><br clear="all">
<o:p></o:p></p>
<div>
<div>
<div>
<p style="margin:0cm;margin-bottom:.0001pt"><span
style="font-size:10.0pt;font-family:"Arial",sans-serif"> <o:p></o:p></span></p>
<p style="margin:0cm;margin-bottom:.0001pt"><span
style="font-size:13.5pt;font-family:"Arial",sans-serif;color:#0076BC">Brad
McEvoy</span><span
style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black"><br>
</span><span
style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#CCCCCC">Senior
Network Engineer</span><span
style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p></o:p></span></p>
<p style="margin:0cm;margin-bottom:.0001pt"><span
style="font-size:10.0pt;font-family:"Arial",sans-serif"> <o:p></o:p></span></p>
<p style="margin:0cm;margin-bottom:.0001pt"><span
style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black"><a
href="http://www.overthewire.com.au"
title=""Over the Wire" t "
moz-do-not-send="true"><span
style="color:black;text-decoration:none"><span
style="color:blue;border:solid windowtext
1.0pt;padding:0cm"><img
style="width:1.7708in;height:1.7708in"
id="_x0000_i1025" src="cid:%7EWRD000.jpg"
alt="Image removed by sender. Over the
Wire" moz-do-not-send="true" height="170"
width="170" border="0"></span></span></a></span><span
style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p></o:p></span></p>
<p style="margin:0cm;margin-bottom:.0001pt"><span
style="font-size:10.0pt;font-family:"Arial",sans-serif"> <o:p></o:p></span></p>
<p style="margin:0cm;margin-bottom:.0001pt"><span
style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black">Over
the Wire Holdings Ltd (ASX:OTW)</span><span
style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p></o:p></span></p>
<p style="margin:0cm;margin-bottom:.0001pt"><span
style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black">GPO
Box 1807 Brisbane, QLD, 4001, Australia<o:p></o:p></span></p>
<p style="margin:0cm;margin-bottom:.0001pt"><span
style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black">Level
9, 33 York Street, Sydney, NSW, 2000<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p> </o:p></span></p>
</div>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<p class="MsoNormal">On 13 June 2018 at 18:15, David
Fowler <<a href="mailto:David.Fowler@datacom.com.au"
target="_blank" moz-do-not-send="true">David.Fowler@datacom.com.au</a>>
wrote:<o:p></o:p></p>
<blockquote style="border:none;border-left:solid #CCCCCC
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<div>
<div>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-GB">Hi Folks</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">Is anyone else running NBN TC2 only
services? Having issues with services running in
the North West that are all backhauled to the
Geraldton POI.</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">Latency doesn’t seem extreme for
the distance, usually ~45ms, but on say a 10Mb
TC2 service, we’re only achieving ~5.5Mbps. FTTN
services connected to other WA POIs, tops ~18ms,
but seem to run OK.</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">Any ideas?</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">Cheers</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">David.</span><o:p></o:p></p>
</div>
<p class="MsoNormal" style="margin-bottom:12.0pt"><o:p> </o:p></p>
<p><b><span
style="font-size:10.0pt;font-family:"Verdana",sans-serif;color:#666666">Confidentiality
and Privilege Notice</span></b><span
style="font-size:10.0pt;font-family:"Verdana",sans-serif;color:#666666"><o:p></o:p></span></p>
<p><span
style="font-size:8.0pt;font-family:"Verdana",sans-serif;color:#666666">This
document is intended solely for the named
addressee. The information contained in the pages
is confidential and contains legally privileged
information. If you are not the addressee
indicated in this message or responsible for
delivery of the message to such person, you may
not copy or deliver this message to anyone, and
you should destroy this message and kindly notify
the sender by reply email. Confidentiality and
legal privilege are not waived or lost by reason
of mistaken delivery to you.<o:p></o:p></span></p>
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