From: Michael E. Flannagan (mflannag@xxxxxxxxx)
Date: Thu Jan 25 2001 - 19:03:34 GMT-3
Correct. WFQ uses the formula: Weight = 4096/(Precedence+1). As such,
all packets with a given IP Precedence (regardless of which conversation
they belong to, are weighted equally.
------------------------------------------------------------
C i s c o S y s t e m s Michael E. Flannagan
| | Network Consulting Engineer
||| ||| Research Triangle Park, NC
||||||| ||||||| (919) 392-4550
.:|||||||||||:.:|||||||||||:. mflannag@cisco.com
------------------------------------------------------------
On Fri, 26 Jan 2001, Justin Menga wrote:
> Probably better if I used the term 'weighting' - in WFQ, weighting is only
> based on IP precedence (and of course interactive traffic)....
>
> In CBWFQ, you have greater control of the weighting by assigning bandwidth
> to anything that can be classified with an ACL (i.e. all 'conversations'
> that fit the ACL)
>
> Regards,
>
> Justin Menga CCIE #6640 MCSE+I CCSE
> WAN Specialist
> Computerland New Zealand
> PO Box 3631, Auckland
> DDI: (+64) 9 360 4864 Mobile: (+64) 25 349 599
> mailto: justin.menga@computerland.co.nz
>
>
> -----Original Message-----
> From: Michael E. Flannagan [mailto:mflannag@cisco.com]
> Sent: Friday, 26 January 2001 10:47 a.m.
> To: Justin Menga
> Subject: RE: wfq
>
>
> Not true, Justin. CBWFQ allows you to perform QoS per class, not per
> conversation. That is its fundamental difference. With WFQ, packets are
> classified into "conversations" by a mixture of things, including port and
> prtocol numbers.
>
> ------------------------------------------------------------
> C i s c o S y s t e m s Michael E. Flannagan
> | | Network Consulting Engineer
> ||| ||| Research Triangle Park, NC
> ||||||| ||||||| (919) 392-4550
> .:|||||||||||:.:|||||||||||:. mflannag@cisco.com
> ------------------------------------------------------------
>
>
>
> On Tue, 23 Jan 2001, Justin Menga wrote:
>
> > Newer IOS feature called LLQ (Low Latency Queueing) which is in reality
> > Priority Queue Class-Based WFQ.
> >
> > CBWFQ is essentially WFQ except you can classify packets based on
> IP/TCP/UDP
> > information (WFQ only used IP precedence to classify).
> >
> > PQ-CBWFQ adds a priority queue that is always serviced ahead of the
> > CBWFQ's...
> >
> > Regards,
> >
> > Justin Menga CCIE #6640 MCSE+I CCSE
> > WAN Specialist
> > Computerland New Zealand
> > PO Box 3631, Auckland
> > DDI: (+64) 9 360 4864 Mobile: (+64) 25 349 599
> > mailto: justin.menga@computerland.co.nz
> >
> >
> > -----Original Message-----
> > From: Dezso Csonka [mailto:dcsonka@cisco.com]
> > Sent: Monday, 22 January 2001 11:13 p.m.
> > To: ccielab@groupstudy.com
> > Subject: wfq
> >
> >
> > Hi,
> >
> > Is it possible to assigne priority to WFQ? I mean that can I assigne =
> > traffic like ftp or telnet to WFQ with different priority just like in =
> > priority queuing?
> > The problem is that I dont understand how WFQ works.
> >
> > Thanks
> >
> > Dezs
> >
> >
> >
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