<div dir="ltr">Mmm, you might be SoL. You could try a later IOS release (if there is one) and see if that affords any additional configuration flexibility. You could ask TAC. There is a chance that in practice it does not in fact matter but I'd test that one thoroughly and assume nothing. I don't have experience with that TW product.<div><br></div><div>Suggest you hit up the Cisco-NSP list as it's probably a better topic for there.</div><div><br></div><div>Regards,</div><div>Brad<br><div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, May 24, 2018 at 5:33 PM, David Fowler <span dir="ltr"><<a href="mailto:David.Fowler@datacom.com.au" target="_blank">David.Fowler@datacom.com.au</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<p class="MsoNormal"><span lang="EN-GB">Hi Brad<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-GB"><u></u> <u></u></span></p>
<p class="MsoNormal"><span lang="EN-GB">I think we do. Telstra pretty explicit saying this is required else “you’ll experience degraded performance”. Their 4Mb EA spec wants a 32000 bit BC when the shaper can only be configured with a minimum 60000.<u></u><u></u></span></p><span class="">
<p class="MsoNormal"><span lang="EN-GB"><u></u> <u></u></span></p>
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<p class="MsoNormal"><span lang="EN-GB"> <u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">Regards,</span><span lang="EN-GB"><u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"> </span><span lang="EN-GB"><u></u><u></u></span></p>
<p class="MsoNormal"><b><span lang="EN-US">David Fowler</span></b><b><span lang="EN-GB"><u></u><u></u></span></b></p>
<p class="MsoNormal"><span lang="EN-US">Infrastructure Engineer – Enterprise Operations</span><span lang="EN-GB"><u></u><u></u></span></p>
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<p class="MsoNormal"><span lang="EN-GB"><u></u> <u></u></span></p>
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<p class="MsoNormal"><b><span style="font-size:12.0pt;color:black">From: </span></b><span style="font-size:12.0pt;color:black">Brad Henshaw <<a href="mailto:henbra@gmail.com" target="_blank">henbra@gmail.com</a>><br>
<b>Date: </b>Thursday, 24 May 2018 at 15:07<br>
<b>To: </b>David Fowler <<a href="mailto:David.Fowler@datacom.com.au" target="_blank">David.Fowler@datacom.com.au</a>><br>
<b>Cc: </b>"<a href="mailto:ausnog@lists.ausnog.net" target="_blank">ausnog@lists.ausnog.net</a>" <<a href="mailto:ausnog@lists.ausnog.net" target="_blank">ausnog@lists.ausnog.net</a>><br>
<b>Subject: </b>Re: [AusNOG] ASR 903 Shaping<u></u><u></u></span></p>
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<p class="MsoNormal">Hi David, <u></u><u></u></p>
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<p class="MsoNormal">It may be worth reviewing whether you really need to specify Bc in your shaper policy. It was a while ago but I recall when working with the ASR920 I found the burst values automatically calculated by IOS (without manually specifying Bc/Be)
worked pretty effectively when using 'shape average' in multi-level policies. I haven't touched a 903 however so don't know if its behaviour is different.<u></u><u></u></p>
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<p class="MsoNormal">Regards,<u></u><u></u></p>
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<p class="MsoNormal">Brad<u></u><u></u></p>
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<p class="MsoNormal">On Thu, May 24, 2018 at 3:37 PM, David Fowler <<a href="mailto:David.Fowler@datacom.com.au" target="_blank">David.Fowler@datacom.com.au</a>> wrote:<u></u><u></u></p>
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<p class="MsoNormal"><span lang="EN-GB">Hi folks</span><u></u><u></u></p>
<p class="MsoNormal"><span lang="EN-GB"> </span><u></u><u></u></p>
<p class="MsoNormal"><span lang="EN-GB">Does anyone know if it’s possible to enter in a lower BC value in a Shaping policy? Seems with this platform the lowest is 60000 bits… this doesn’t help when
we need to configure 4Mbps Telstra EA policies…</span><u></u><u></u></p>
<p class="MsoNormal"><span lang="EN-GB"> </span><u></u><u></u></p>
<p class="MsoNormal"><span lang="EN-GB">Maybe a different software version?</span><u></u><u></u></p>
<p class="MsoNormal"><span lang="EN-GB"> </span><u></u><u></u></p>
<p class="MsoNormal"><span lang="EN-US">Regards,</span><u></u><u></u></p>
<p class="MsoNormal"><span lang="EN-US"> </span><u></u><u></u></p>
<p class="MsoNormal"><b><span lang="EN-US">David Fowler</span></b><u></u><u></u></p>
<p class="MsoNormal"><span lang="EN-US">Infrastructure Engineer – Enterprise Operations</span><u></u><u></u></p>
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