From: elping (elpingu@acedsl.com)
Date: Sun Sep 29 2002 - 19:16:41 GMT-3
scott:
CBWFQ
Once a class has been defined according to its match criteria, you can
assign it characteristics. To characterize a class, you assign it bandwidth,
weight, and maximum packet limit. The bandwidth assigned to a class is the
guaranteed bandwidth delivered to the class during congestion.
Scott Morris wrote:
> They both fall under the same concept. If there is no congestion on the
> line, technically you are under a FIFO policy. You don't queue ANYTHING
> until there is some sort of congestion to get to the line.
>
> Think about going to the amusement park. They have all these bizarre
> line contraptions set up, but if you're there really early in the
> morning, do you use them? No, you go straight onto the ride. The
> contraptions are still configured, but are not used until there is some
> congestion.
>
> CBWFQ or custom-queuing will depend on the wording of the question for
> bandwidth used. Remember that CBWFQ defaults to allocating only 75% of
> the line's bandwidth. (Change with the "max-reserved-bandwidth 100"
> command) But otherwise, the concept is still the same. And with CAR,
> you're setting caps of traffic, but until you meet them, there's nothing
> going on.
>
> Scott
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> elping
> Sent: Monday, September 23, 2002 10:18 PM
> To: Adam Crisp
> Cc: Ccielab
> Subject: Re: CB WFQ
>
> my friend
> CB-WFQ will not do the trick
>
> i though the same thing a while back ...here is the scoop on CB-WFQ.
> this method will only gurantee the allocated bandwithd during congestion
> .
>
> now the question says ..
> dived traffic exactly .....then CB-WFQ will not do the trick..
>
> try custom queeing ..or CAR
>
> Elping
> .
>
> Adam Crisp wrote:
>
> > Hi,
> >
> > If asked to divide up bandwidth EXACTLY, can I use CB-WFQ, with the
> > "bandwidth percent XX" command?
> >
> > eg
> >
> > class-map match-all my_class_queue_ip
> > match access-group 25
> > !
> > policy-map my_policy
> > class my_class_queue_ip
> > bandwidth percent 50
> >
> > OR does this call for Custom Queuing?
> >
> > thanks in advance...
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