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07-队列调度算法WRR DRR以及MDRR的比较.mht
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07-队列调度算法WRR DRR以及MDRR的比较.mht
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DRR=D2=D4=BC=B0MDRR=B5=C4=B1=C8=BD=CFModified=20
Deficit Round Robin (MDRR)</SPAN><SPAN class=3D"bgc0 fc07 fw0 =
fs0"></SPAN></H3>
<P style=3D"LINE-HEIGHT: 20px" class=3D"tdep clearfix nbw-act =
fc06"><SPAN=20
class=3Dpleft><A class=3D"fc03 m2a" title=3DCISCO=20
href=3D"http://carlarshao.blog.163.com/blog/#m=3D0&t=3D1&c=3Dfks_=
087069083081084065087095087095080082081066083083094066">CISCO</A>=20
<SPAN class=3Dsep>2009-12-15 21:19:16</SPAN> <SPAN =
class=3Dsep>=D4=C4=B6=C1<SPAN=20
id=3D$_spanReadCount>476</SPAN></SPAN> <SPAN =
class=3Dsep>=C6=C0=C2=DB<SPAN=20
id=3D$_spanCommentCount>0</SPAN></SPAN> </SPAN><SPAN=20
class=3D"pright fc07 ztag"><SPAN =
class=3Dsep></SPAN> =D7=D6=BA=C5=A3=BA<SPAN=20
class=3D"ul sep fc04">=B4=F3</SPAN><SPAN class=3D"ul sep =
fc04">=D6=D0</SPAN><SPAN=20
class=3D"sep ul fc04">=D0=A1</SPAN></SPAN><SPAN id=3D$_blog_subscribe=20
class=3D"pright pnt fc03"><SPAN class=3D"iblock icn0 =
icn0-919"> </SPAN><A=20
class=3Dm2a>=B6=A9=D4=C4</A></SPAN> </P></DIV></DIV></DIV>
<DIV class=3D"bct fc05 fc11 nbw-blog ztag">
<TABLE border=3D0 cellSpacing=3D0 cellPadding=3D0 width=3D"100%" =
bgColor=3D#ffffff>
<TBODY>
<TR>
<TD width=3D"100%">
<TABLE border=3D0 cellSpacing=3D0 cellPadding=3D0 width=3D"100%">
<TBODY>
<TR>
<TD bgColor=3D#669999 width=3D"100%" noWrap><STRONG><FONT =
size=3D2><FONT=20
color=3D#ffffff><SPAN>Feature Details</SPAN><BR><IMG=20
title=3D"WRR DRR=D2=D4=BC=B0MDRR=B5=C4=B1=C8=BD=CFModified =
Deficit Round Robin (MDRR) - carlarshao - carlarshao=B5=C4=B2=A9=BF=CD"=20
alt=3D"WRR DRR=D2=D4=BC=B0MDRR=B5=C4=B1=C8=BD=CFModified =
Deficit Round Robin (MDRR) - carlarshao - carlarshao=B5=C4=B2=A9=BF=CD"=20
=
src=3D"http://www.cisco.com/apps-ui/generic/1.0/images/spacer.gif"=20
width=3D1 height=3D3></FONT></FONT></STRONG></TD>
<TD bgColor=3D#669999 vAlign=3Dtop width=3D7 =
align=3Dright><STRONG><FONT=20
color=3D#ffffff size=3D2><IMG=20
title=3D"WRR DRR=D2=D4=BC=B0MDRR=B5=C4=B1=C8=BD=CFModified =
Deficit Round Robin (MDRR) - carlarshao - carlarshao=B5=C4=B2=A9=BF=CD"=20
alt=3D"WRR DRR=D2=D4=BC=B0MDRR=B5=C4=B1=C8=BD=CFModified =
Deficit Round Robin (MDRR) - carlarshao - carlarshao=B5=C4=B2=A9=BF=CD"=20
=
src=3D"http://www.cisco.com/apps-ui/generic/1.0/images/corner_ur_7.gif"=20
width=3D7 =
height=3D7></FONT></STRONG></TD></TR></TBODY></TABLE>
<TABLE border=3D0 cellSpacing=3D0 cellPadding=3D0 width=3D"100%">
<TBODY>
<TR>
<TD bgColor=3D#669999 width=3D"100%">
<TABLE border=3D0 cellSpacing=3D1 borderColor=3D#669999 =
cellPadding=3D3=20
width=3D"100%" bgColor=3D#669999>
<TBODY>
<TR bgColor=3D#ffffff>
<TD bgColor=3D#ffffff vAlign=3Dtop width=3D"18%"=20
align=3Dleft>Feature</TD>
<TD bgColor=3D#ffffff vAlign=3Dtop width=3D"82%"=20
align=3Dleft>Description</TD></TR>
<TR bgColor=3D#ffffff>
<TD bgColor=3D#ffffff vAlign=3Dtop =
width=3D"18%">Modified Deficit=20
Round Robin (MDRR)</TD>
<TD bgColor=3D#ffffff vAlign=3Dtop =
width=3D"82%">Modified Deficit=20
Round Robin (MDRR) is a traffic latency control =
function. It=20
allows the operators to guarantee traffic latency for=20
differentiated flows by controlling the packet =
de-queuing=20
process. Packet classification is based on IP =
Precedence. MDRR=20
differs from DRR in that on<WBR>e of the eight =
available=20
queues is designated as a low-latency queue. There are =
two=20
basic modes of operation which govern how packets =
arede-queued=20
from the low-latency queue in relation to other =
queues.<BR><A=20
=
href=3D"http://www.cisco.com/en/US/products/ps5845/products_installation_=
and_configuration_guides_list.html">For=20
more IOS XR information...</A><BR><A=20
=
href=3D"http://www.cisco.com/warp/public/cc/pd/rt/12000/tech/ipra_wp.htm"=
>For=20
More=20
=
Information...</A></TD></TR></TBODY></TABLE></TD></TR></TBODY></TABLE></T=
D>
<TD width=3D13><IMG=20
title=3D"WRR DRR=D2=D4=BC=B0MDRR=B5=C4=B1=C8=BD=CFModified Deficit =
Round Robin (MDRR) - carlarshao - carlarshao=B5=C4=B2=A9=BF=CD"=20
border=3D0 alt=3D"" src=3D"http://www.cisco.com/swa/i/s.gif" =
width=3D13=20
height=3D1></TD></TD></TR></TBODY></TABLE>
<TABLE border=3D0 cellSpacing=3D0 cellPadding=3D0 width=3D"100%">
<TBODY>
<TR>
<TD colSpan=3D4><IMG=20
title=3D"WRR DRR=D2=D4=BC=B0MDRR=B5=C4=B1=C8=BD=CFModified Deficit =
Round Robin (MDRR) - carlarshao - carlarshao=B5=C4=B2=A9=BF=CD"=20
alt=3D"" src=3D"http://www.cisco.com/swa/i/s.gif" width=3D1 =
height=3D17></TD></TR>
<TR>
<TD width=3D13><IMG=20
title=3D"WRR DRR=D2=D4=BC=B0MDRR=B5=C4=B1=C8=BD=CFModified Deficit =
Round Robin (MDRR) - carlarshao - carlarshao=B5=C4=B2=A9=BF=CD"=20
alt=3D"" src=3D"http://www.cisco.com/swa/i/s.gif" width=3D13 =
height=3D1></TD>
<TD width=3D"100%" colSpan=3D2 noWrap><A=20
href=3D"http://carlarshao.blog.163.com/;"><FONT =
color=3D#003333>Close=20
Window</FONT></A></TD>
<TD><FONT color=3D#003333><IMG=20
title=3D"WRR DRR=D2=D4=BC=B0MDRR=B5=C4=B1=C8=BD=CFModified Deficit =
Round Robin (MDRR) - carlarshao - carlarshao=B5=C4=B2=A9=BF=CD"=20
alt=3D"" src=3D"http://www.cisco.com/swa/i/s.gif" width=3D14=20
height=3D1></FONT></TD></TR>
<TR>
<TD colSpan=3D4><FONT color=3D#003333><IMG=20
title=3D"WRR DRR=D2=D4=BC=B0MDRR=B5=C4=B1=C8=BD=CFModified Deficit =
Round Robin (MDRR) - carlarshao - carlarshao=B5=C4=B2=A9=BF=CD"=20
alt=3D"" src=3D"http://www.cisco.com/swa/i/s.gif" width=3D1=20
height=3D4></FONT></TD></TR></TBODY></TABLE>
<TABLE border=3D0 cellSpacing=3D0 cellPadding=3D0 width=3D"100%">
<TBODY>
<TR bgColor=3D#669999>
<TD =
background=3Dhttp://www.cisco.com/swa/i/popup_footer_pattern.gif><FONT=20
color=3D#003333><IMG=20
title=3D"WRR DRR=D2=D4=BC=B0MDRR=B5=C4=B1=C8=BD=CFModified Deficit =
Round Robin (MDRR) - carlarshao - carlarshao=B5=C4=B2=A9=BF=CD"=20
alt=3D"" src=3D"http://www.cisco.com/swa/i/s.gif" width=3D13 =
height=3D1></FONT></TD>
<TD width=3D"100%" colSpan=3D2><FONT color=3D#003333><IMG=20
title=3D"WRR DRR=D2=D4=BC=B0MDRR=B5=C4=B1=C8=BD=CFModified Deficit =
Round Robin (MDRR) - carlarshao - carlarshao=B5=C4=B2=A9=BF=CD"=20
alt=3D"" src=3D"http://www.cisco.com/swa/i/s.gif" width=3D1=20
height=3D4></FONT></TD></TR>
<TR>
<TD =
background=3Dhttp://www.cisco.com/swa/i/popup_footer_pattern.gif><FONT=20
color=3D#003333><IMG=20
title=3D"WRR DRR=D2=D4=BC=B0MDRR=B5=C4=B1=C8=BD=CFModified Deficit =
Round Robin (MDRR) - carlarshao - carlarshao=B5=C4=B2=A9=BF=CD"=20
alt=3D"" src=3D"http://www.cisco.com/swa/i/s.gif" width=3D1 =
height=3D3></FONT></TD>
<TD width=3D"100%"><FONT color=3D#003333><IMG=20
title=3D"WRR DRR=D2=D4=BC=B0MDRR=B5=C4=B1=C8=BD=CFModified Deficit =
Round Robin (MDRR) - carlarshao - carlarshao=B5=C4=B2=A9=BF=CD"=20
alt=3D"" src=3D"http://www.cisco.com/swa/i/s.gif" width=3D1 =
height=3D1></FONT></TD>
<TD width=3D1><FONT color=3D#003333><IMG=20
title=3D"WRR DRR=D2=D4=BC=B0MDRR=B5=C4=B1=C8=BD=CFModified Deficit =
Round Robin (MDRR) - carlarshao - carlarshao=B5=C4=B2=A9=BF=CD"=20
alt=3D"" src=3D"http://www.cisco.com/swa/i/s.gif" width=3D1=20
height=3D1></FONT></TD></TR>
<TR>
<TD><FONT color=3D#003333><IMG=20
title=3D"WRR DRR=D2=D4=BC=B0MDRR=B5=C4=B1=C8=BD=CFModified Deficit =
Round Robin (MDRR) - carlarshao - carlarshao=B5=C4=B2=A9=BF=CD"=20
alt=3D"" src=3D"http://www.cisco.com/swa/i/s.gif" width=3D1 =
height=3D1></FONT></TD>
<TD vAlign=3Dtop width=3D"100%" colSpan=3D2>
<P><SPAN><FONT size=3D1>© 1992-2008 Cisco Systems, Inc. All =
rights reserved.=20
</FONT><A title=3D"Open Popup Window"=20
href=3D"http://carlarshao.blog.163.com/;"><FONT color=3D#000000 =
size=3D1>Terms=20
and Conditions</FONT></A><FONT size=3D1>, </FONT><A=20
title=3D"Open Popup Window" =
href=3D"http://carlarshao.blog.163.com/;"><FONT=20
color=3D#000000 size=3D1>Privacy Statement</FONT></A><FONT =
size=3D1>, </FONT><A=20
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href=3D"http://carlarshao.blog.163.com/;"><FONT=20
color=3D#000000 size=3D1>Cookie Policy</FONT></A><FONT size=3D1> =
and </FONT><A=20
title=3D"Open Popup Window" =
href=3D"http://carlarshao.blog.163.com/;"><FONT=20
color=3D#000000 size=3D1>Trademarks</FONT></A><FONT size=3D1> of =
Cisco Systems,=20
Inc.</FONT></SPAN> </P>
<P style=3D"TEXT-INDENT: 2em">Weighted Round Robin(WRR)</P>
<P=20
style=3D"TEXT-INDENT: =
2em">=81=D0=C1=D0=D5{=B6=C8=8C=A2=C3=BF=82=80interface=B7=D6=9E=E9=B6=E0=82=
=80=DD=94=B3=F6=81=D0=C1=D0=A3=AC=81=D0=C1=D0=D6=AE=E9g=DD=86=C1=F7=D5{=B6=
=C8=A3=AC=B1=A3=D7C=C3=BF=82=80=81=D0=C1=D0=B6=BC=B5=C3=B5=BD=D2=BB=B6=A8=
=B5=C4=B7=FE=84=D5=95r=E9g=A3=ACWRR=BF=C9=9E=E9=C3=BF=82=80=81=D0=C1=D0=C5=
=E4=D6=C3=D2=BB=82=80=BC=D3=99=E0=D6=B5(=D2=C0=B4=CE=9E=E9W3=A1=A2W2=A1=A2=
W1=A1=A2W0)=A3=AC=BC=D3=99=E0=D6=B5=B1=ED=CA=BE=AB@=C8=A1=D9Y=D4=B4=B5=C4=
=B1=C8=D6=D8=A1=A3=20
</P>
<P style=3D"TEXT-INDENT: 2em"></P>
<P style=3D"TEXT-INDENT: 2em">=C8=E7=D2=BB=82=80FE=20
=
interface=A3=AC=C5=E4=D6=C3=CB=FC=B5=C4WRR=81=D0=C1=D0=D5{=B6=C8=CB=E3=B7=
=A8=B5=C4=BC=D3=99=E0=D6=B5=9E=E950=A1=A230=A1=A210=A1=A210(=D2=C0=B4=CE=8C=
=A6=91=AAW3=A1=A2W2=A1=A2W1=A1=A2W0)=A3=AC=DF@=98=D3=BF=C9=D2=D4=B1=A3=D7=
C=D7=EE=B5=CD=83=9E=CF=C8=B5=C8=BC=89=81=D0=C1=D0=D6=C1=C9=D9=AB@=B5=C310=
Mbits/sec=EEl=8C=92=A3=AC=B1=DC=C3=E2=C1=CB=92=F1=D3=C3PQ=D5{=B6=C8=95r=B5=
=CD=83=9E=CF=C8=B5=C8=BC=89=81=D0=C1=D0=D6=D0=B5=C4=B7=E2=B0=FC=BF=C9=C4=DC=
=E9L=95r=E9g=B5=C3=B2=BB=B5=BD=B7=FE=84=D5=B5=C4=C8=B1=FCc=A1=A3WRR=81=D0=
=C1=D0=DF=80=D3=D0=D2=BB=82=80=83=9E=FCc=CA=C7=A3=AC=EBm=C8=BB=B6=E0=82=80=
=81=D0=C1=D0=B5=C4=D5{=B6=C8=CA=C7=DD=86=B7=AC=DFM=D0=D0=B5=C4=A3=AC=B5=AB=
=CA=C7=8C=A6=C3=BF=82=80=81=D0=C1=D0=B2=BB=CA=C7=B9=CC=B6=A8=B5=D8=B7=D6=C5=
=E4=B7=FE=84=D5=95r=E9g=C6=AC=B6=CE=20
- =
=C8=E7=B9=FB=C4=B3=82=80=81=D0=C1=D0=9E=E9=BF=D5=A3=AC=C4=C7=FCN=F1R=C9=CF=
=93Q=B5=BD=CF=C2=D2=BB=82=80=81=D0=C1=D0=D5{=B6=C8=A3=AC=DF@=98=D3=EEl=8C=
=92=D9Y=D4=B4=BF=C9=D2=D4=B5=C3=B5=BD=B3=E4=B7=DD=B5=C4=C0=FB=D3=C3=A1=A3=
</P>
<P style=3D"TEXT-INDENT: 2em">(=BD=E8=E5X=B2=BB=DF=80)</P>
<P style=3D"TEXT-INDENT: 2em"></P>
<P style=3D"TEXT-INDENT: 2em">Deficit Round Robin(DRR)</P>
<P style=3D"TEXT-INDENT: 2em">Deficit Round Robin =99C=D6=C6=C5c =
WRR=20
=
=CF=E0=CB=C6=A3=AC=B5=AB=BF=C9=DFm=BA=CF=B2=BB=CD=AC=B7=E2=B0=FC=E9L=B6=C8=