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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">A policer does not buffer frames. The MBS is the max burst size and CBS is the committed burst size.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">For a queue, the MBS and CBS are buffer sizes – the queue depth.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="color:#1F497D"> <br>
<br>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif"> alcatel-nsp [mailto:alcatel-nsp-bounces@puck.nether.net]
<b>On Behalf Of </b>??<br>
<b>Sent:</b> Thursday, 6 August 2015 1:05 p.m.<br>
<b>To:</b> Mark Ivens <mark@clara.net>; alcatel-nsp <alcatel-nsp@puck.nether.net><br>
<b>Subject:</b> [alcatel-nsp] </span><span lang="ZH-CN" style="font-size:11.0pt;font-family:SimSun">回复：</span><span lang="ZH-CN" style="font-size:11.0pt;font-family:"Calibri",sans-serif">
</span><span lang="ZH-CN" style="font-size:11.0pt;font-family:SimSun">回复：</span><span lang="ZH-CN" style="font-size:11.0pt;font-family:"Calibri",sans-serif">
</span><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">what's the difference between policer and queue,IN QOS for al 7750-SR<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Is that meaning policer will drop packages that out of the CIR?<o:p></o:p></p>
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<p class="MsoNormal"><em>In other words</em>, policers can uses the Mbs buffer,but cann't use the CBS buffer.<o:p></o:p></p>
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<p class="MsoNormal">and that's the different that quenue can use the cbs buffer and mbs buffer.<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">some configure looks like that:<o:p></o:p></p>
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<p class="MsoNormal"> qos<br>
sap-ingress 2 create <o:p></o:p></p>
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<p class="MsoNormal"> description "Qos-in-from-user-2M"<br>
queue 1 create<br>
exit<br>
queue 11 multipoint create<br>
exit<br>
policer 1 create<br>
rate 2048 cir 2048<br>
mbs 10 kilobytes<br>
exit<br>
policer 2 create<br>
rate 128 cir 128<br>
mbs 128 kilobytes<br>
cbs 64 kilobytes<br>
exit<br>
fc "af" create<br>
policer 1<br>
exit<br>
fc "be" create<br>
policer 1<br>
exit<br>
fc "ef" create<br>
policer 2<br>
exit<br>
fc "h1" create<br>
policer 1<br>
exit<br>
fc "h2" create<br>
policer 1<br>
exit<br>
fc "l1" create<br>
policer 1<br>
exit<br>
fc "l2" create<br>
policer 1<br>
exit<br>
fc "nc" create<br>
policer 1<br>
exit<br>
ip-criteria<br>
entry 10 create<br>
match protocol icmp<br>
exit<br>
action fc "ef"<br>
exit<br>
exit<br>
exit<o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Arial Narrow",sans-serif">------------------ </span><span lang="ZH-CN" style="font-size:9.0pt;font-family:"Calibri",sans-serif">原始</span><span lang="ZH-CN" style="font-size:9.0pt;font-family:"Microsoft JhengHei",sans-serif">邮件</span><span style="font-size:9.0pt;font-family:"Arial Narrow",sans-serif"> ------------------<o:p></o:p></span></p>
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<p class="MsoNormal" style="background:#EFEFEF"><b><span lang="ZH-CN" style="font-size:9.0pt;font-family:"Microsoft JhengHei",sans-serif">发件人</span></b><b><span style="font-size:9.0pt">:</span></b><span style="font-size:9.0pt"> "Mark Ivens";<</span><a href="mailto:mark@clara.net"><span style="font-size:9.0pt">mark@clara.net</span></a><span style="font-size:9.0pt">>;<o:p></o:p></span></p>
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<p class="MsoNormal" style="background:#EFEFEF"><b><span lang="ZH-CN" style="font-size:9.0pt;font-family:"Microsoft JhengHei",sans-serif">发送时间</span></b><b><span style="font-size:9.0pt">:</span></b><span style="font-size:9.0pt"> 2015</span><span lang="ZH-CN" style="font-size:9.0pt;font-family:"Calibri",sans-serif">年</span><span style="font-size:9.0pt">8</span><span lang="ZH-CN" style="font-size:9.0pt;font-family:"Calibri",sans-serif">月</span><span style="font-size:9.0pt">5</span><span lang="ZH-CN" style="font-size:9.0pt;font-family:"Calibri",sans-serif">日</span><span style="font-size:9.0pt">(</span><span lang="ZH-CN" style="font-size:9.0pt;font-family:"Calibri",sans-serif">星期三</span><span style="font-size:9.0pt">)
</span><span lang="ZH-CN" style="font-size:9.0pt;font-family:"Calibri",sans-serif">晚上</span><span style="font-size:9.0pt">10:47<o:p></o:p></span></p>
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<p class="MsoNormal" style="background:#EFEFEF"><b><span lang="ZH-CN" style="font-size:9.0pt;font-family:"Calibri",sans-serif">收件人</span></b><b><span style="font-size:9.0pt">:</span></b><span style="font-size:9.0pt"> "alcatel-nsp"<</span><a href="mailto:alcatel-nsp@puck.nether.net"><span style="font-size:9.0pt">alcatel-nsp@puck.nether.net</span></a><span style="font-size:9.0pt">>;
<o:p></o:p></span></p>
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<p class="MsoNormal" style="background:#EFEFEF"><b><span lang="ZH-CN" style="font-size:9.0pt;font-family:"Calibri",sans-serif">主</span></b><b><span lang="ZH-CN" style="font-size:9.0pt;font-family:"Microsoft JhengHei",sans-serif">题</span></b><b><span style="font-size:9.0pt">:</span></b><span style="font-size:9.0pt"> Re:
[alcatel-nsp]</span><span lang="ZH-CN" style="font-size:9.0pt;font-family:"Calibri",sans-serif">回复：</span><span style="font-size:9.0pt"> what's the difference between policer and queue,IN QOS for al 7750-SR<o:p></o:p></span></p>
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<div>
<p class="MsoNormal"> <o:p></o:p></p>
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<div>
<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal"><br>
<o:p></o:p></p>
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<p class="MsoNormal">On 05/08/2015 15:07, wrote:<br>
> sorry,subject is wrong,my question is<br>
> what's the difference between policer and queue,IN QOS for al 7750-SR<br>
A policer is used to drop traffic exceeding a certain rate.<br>
<br>
A queue is memory used to absorb bursts of packets.<br>
<br>
A shaper (rather than a policer) uses a queue to store non-conforming<br>
packets and attempts to de-queue them at a conforming rate.<br>
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