<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div class="">And all directional splitters have some back propagation.</div><div class=""><br class=""></div><div class="">With the right equipment you can read that.</div><div class=""><br class=""></div><div class="">So your upstream could be monitored by someone nearby.</div><div class=""><br class=""></div><div class="">Cheers,</div><br class=""><div apple-content-edited="true" class="">
<div class="">jsl</div><div class=""><br class=""></div></div><div><blockquote type="cite" class=""><div class="">On 10 Jun 2015, at 10:23 pm, Aftab Siddiqui <<a href="mailto:aftab.siddiqui@gmail.com" class="">aftab.siddiqui@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class=""><div class="gmail_quote"><div class="">Hi,</div><div class="">Just to add its general rule for GPON not only for NBN.</div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap: break-word; font-size: 14px; font-family: Calibri, sans-serif;" class=""><span class=""><blockquote style="BORDER-LEFT:#b5c4df 5 solid;PADDING:0 0 0 5;MARGIN:0 0 0 5" class=""><div class=""><div lang="EN-AU" link="#0563C1" vlink="#954F72" class=""><div class=""><div class=""><br class="webkit-block-placeholder"></div><p class="MsoNormal"><u class=""></u></p><p class="MsoNormal">Can anyone confirm if the upstream traffic is encrypted?</p>
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</div><div style="word-wrap: break-word; font-size: 14px; font-family: Calibri, sans-serif;" class=""><div class="">I can’t confirm if the upstream traffic is encrypted but in a GPON environment you only should concern about encryption of the downstream traffic: </div>
<div class="">Downstream is shared media for all subscribers connected to the splitted span (32 to 128 subscribers). Every subscriber gets all downstream traffic from the others – encryption needed. </div></div></blockquote><div class=""> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap: break-word; font-size: 14px; font-family: Calibri, sans-serif;" class=""><div class="">For the upstream path the media is not shared. </div></div></blockquote><div class=""><br class=""></div><div class="">It is shared media as well.</div><div class=""> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap: break-word; font-size: 14px; font-family: Calibri, sans-serif;" class=""><div class="">You have a „dedicated“
upstream path from your ONU to NBNs OLT. The other subscribers don’t get your upstream traffic – only looking at the physics.</div></div><div style="word-wrap: break-word; font-size: 14px; font-family: Calibri, sans-serif;" class="">
<div class=""><br class=""></div></div></blockquote><div class=""> </div><div class="">Its TDM to be specific. </div><div class=""> </div></div></div>
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