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I've had several people bend my ear as to why they think NBNCo should
be layer 3/IP, coming mainly from ATUG and end-user land.<br>
Most of it was from several months ago before CA and NBNCo put out the
consultation papers outlining why we thought Layer 2 was the way to go.<br>
<br>
I haven't heard any particularly persuasive arguments, or a clear
articulation of the problem that would be solved by NBNCo being 'Layer
3', and I would have hoped that the consultation papers would explain
why NBNCo doing Layer 2 didn't mean the Layer 3 services from RSPs
would be limited. <br>
<br>
For fairness, one of the arguments was around traffic efficiency - that
in a Layer-2 model, traffic from (say) a factory connected to one RSP
that wanted to get to (say) a business partner located physically right
next door that was connected to a different RSP would not follow an
optimal path across the street, but will be forced to travel all the
way out to an interconnect point and through RSP1, then be handed over
to RSP2, then have to travel all the way back to the recipient -
possibly hundreds of kilometres. The guys advocating for Layer3 seem
to assume that NBNCo's routers would allow the traffic to cut-through
and stay entirely local, and would not have to hit either of the RSPs
core networks at all. I remain unconvinced.<br>
<br>
I note Phil Dobbie has just released a Twisted Wire episode
looking at Layer 3, that I haven't listened to yet - Skeeve, is the
Twisted Wire podcast that led to your question?<br>
<br>
P.<br>
<br>
<br>
On 22/04/2010 9:22 AM, McDonald Richards wrote:
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<p class="MsoNormal"><span style="color: rgb(31, 73, 125);">I’ve been
to a couple of their workshops now and from what I can tell, NBN Co
have no
intention of providing a layer 3 service. Where are the other voices
and are
they people with clue or just opinion pieces from industry commentators?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);">Macca<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span
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lang="EN-US">From:</span></b><span
style="font-size: 10pt; font-family: "Tahoma","sans-serif";"
lang="EN-US"> <a class="moz-txt-link-abbreviated" href="mailto:ausnog-bounces@lists.ausnog.net">ausnog-bounces@lists.ausnog.net</a>
[<a class="moz-txt-link-freetext" href="mailto:ausnog-bounces@lists.ausnog.net">mailto:ausnog-bounces@lists.ausnog.net</a>]
<b>On Behalf Of </b>Skeeve Stevens<br>
<b>Sent:</b> Thursday, 22 April 2010 9:03 AM<br>
<b>To:</b> <a class="moz-txt-link-abbreviated" href="mailto:ausnog@ausnog.net">ausnog@ausnog.net</a><br>
<b>Subject:</b> [AusNOG] NBN Co Layer 2 vs. Layer 3 Services<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="color: rgb(0, 32, 96);">Hey all,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(0, 32, 96);"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(0, 32, 96);">Just a
quick question. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(0, 32, 96);"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(0, 32, 96);">At the
moment there is a lot of
talk of NBN and whether they are going to deliver Layer 2 or Layer 3
services.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(0, 32, 96);"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(0, 32, 96);">I am a
little confused about what
is meant by that. In that as ISP’s, I would assume that we would
only want Layer 2 services from them? Just in kind of a DSL
Wholesale/Ethernet
wholesale/etc situation that we already have.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(0, 32, 96);"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(0, 32, 96);">Most of our
ISP customers would
be happy if the NBN operated just like the current wholesale models out
there
at the moment. Little ISP calls his aggregator and says he wants a NBN
VLAN to this address which they get from NBNCo (if directly if you are
big
enough and can afford to interconnect yourself), which is turned on and
presented at an aggregation port... very much like taking wholesale
ethernet
from Pipe, Nextgen, Telstra and others today.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(0, 32, 96);"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(0, 32, 96);">This makes
sense to me.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(0, 32, 96);"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(0, 32, 96);">But there
is a bunch of voices
saying they want the NBN Co to do Layer 3... and I am not quite sure
what is
meant by that? Users buy bandwidth off the NBN Co? Turning them into a
retail ISP?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(0, 32, 96);"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(0, 32, 96);">If this
seems like a stupid
question, I am sorry about that... but there are some voices who have
access to
presenting their views and are doing so about NBN should be doing Layer
3...
and I am trying to find some understanding about what is actually being
suggested.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(0, 32, 96);"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(0, 32, 96);">...Skeeve</span><span
style="font-size: 10pt; color: rgb(0, 32, 96);"><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size: 10pt; color: rgb(0, 32, 96);"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size: 10pt; color: rgb(0, 32, 96);">--<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size: 10pt; color: rgb(0, 32, 96);">Skeeve Stevens,
CEO/Technical Director<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size: 10pt; color: rgb(0, 32, 96);">eintellego Pty
Ltd - The Networking Specialists<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size: 10pt; color: rgb(0, 32, 96);"><a class="moz-txt-link-abbreviated" href="mailto:skeeve@eintellego.net">skeeve@eintellego.net</a>
/ <a class="moz-txt-link-abbreviated" href="http://www.eintellego.net">www.eintellego.net</a><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size: 10pt; color: rgb(0, 32, 96);">Phone: 1300 753
383, Fax: (+612) 8572 9954<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size: 10pt; color: rgb(0, 32, 96);">Cell +61 (0)414
753 383 / <a class="moz-txt-link-freetext" href="skype://skeeve">skype://skeeve</a><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size: 10pt; color: rgb(0, 32, 96);"><a class="moz-txt-link-abbreviated" href="http://www.linkedin.com/in/skeeve">www.linkedin.com/in/skeeve</a>
;
facebook.com/eintellego<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size: 10pt; color: rgb(0, 32, 96);">--<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size: 10pt; color: rgb(0, 32, 96);">NOC, NOC, who's
there?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(0, 32, 96);"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size: 8pt; color: rgb(0, 32, 96);">Disclaimer:
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It may contain sensitive and private proprietary or legally privileged
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<p class="MsoNormal"><o:p> </o:p></p>
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</blockquote>
<br>
<br>
<pre class="moz-signature" cols="86">--
Paul Brooks | Mob +61 414 366 605
Layer 10 Advisory | Ph +61 2 9402 7355
-------------------------------------------------------
Layer 10 - telecommunications strategy & network design</pre>
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