Andy,<br><br>One thing about shaping is that it takes more resources (mainly CPU) from the router.<br>What kind of a router is that?<br><br>Arie<br><br><div class="gmail_quote">On Mon, Sep 7, 2009 at 9:41 AM, Andy Saykao <span dir="ltr"><<a href="mailto:andy.saykao@staff.netspace.net.au">andy.saykao@staff.netspace.net.au</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div>
<div><font face="Arial" size="2"><span>Hi
All,</span></font></div>
<div><font face="Arial" size="2"><span></span></font> </div>
<div><font face="Arial" size="2"><span>Is it better to
shape or police DSL subscribers that have exceeded their quota or does it not
matter which method you choose? </span></font><font face="Arial" size="2"><span>We are currently using CoA with policing but I've been
asked to investigate whether we should look at shaping instead of policing. My
testing reveals that policing is more bursty as seen below. </span></font></div>
<div><font face="Arial" size="2"><span></span></font> </div>
<div><font face="Arial" size="2"><span>*** Example with
Policing ***</span></font></div>
<div><font face="Arial" size="2"><span></span></font> </div>
<div><font face="Arial" size="2"><span>policy-map
POLICE-TEST<br> class class-default<br> police 48000 9000
18000 conform-action transmit
exceed-action drop violate-action
drop</span></font></div>
<div><font face="Arial" size="2"><span></span></font> </div>
<div><font face="Arial" size="2"><span><span>Using: cisco-avpair =
"ip:sub-qos-policy-out=POLICE-TEST"</span></span></font></div>
<div><br></div>
<div><font face="Arial" size="2"><span>Download speeds
fluctuate between 5.2 - 7.6KB/sec. More bursty.</span></font></div>
<div><font face="Arial" size="2"><span></span></font> </div>
<div><font face="Arial" size="2"><span>*** Example with
Shaping ***</span></font></div>
<div><font face="Arial" size="2"><span></span></font> </div>
<div><font face="Arial" size="2"><span>policy-map
SHAPE-TEST<br> class class-default<br> shape average
48000<br></span></font></div>
<div><font face="Arial" size="2"><span>Using: cisco-avpair
= "ip:sub-qos-policy-out=SHAPE-TEST"</span></font></div>
<div><font face="Arial" size="2"><span></span></font> </div>
<div><font face="Arial" size="2"><span>
<div><font face="Arial" size="2"><span>Download speeds
remain at constant 5.6KB/sec. Very little
bursting.</span></font></div></span></font></div>
<div><font face="Arial" size="2"><span></span></font> </div>
<div><font face="Arial" size="2"><span>Any pro's and con's
to either method???</span></font></div>
<div><font face="Arial" size="2"><span></span></font> </div>
<div><font face="Arial" size="2"><span>Thanks.</span></font></div>
<div><font face="Arial" size="2"><span></span></font> </div>
<div><font face="Arial" size="2"><span>Andy</span></font></div></div><p align="left"><font face="Arial" size="1">This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. Please notify the sender immediately by email if you have received this email by mistake and delete this email from your system. Please note that any views or opinions presented in this email are solely those of the author and do not necessarily represent those of the organisation. Finally, the recipient should check this email and any attachments for the presence of viruses. The organisation accepts no liability for any damage caused by any virus transmitted by this email.</font></p>
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