RES: [c-nsp] bursting and accounting

[Rolf Mendelsohn]

Hi Murilo,

On Friday 17 February 2006 22:08, Murilo Antonio Pugliese wrote:
> Is there any concerning or restriction regarding deploying the same
> Class-Based Policing on both directions, input and output, @ the same
> interface ?

There are no problems with applying the same policy inbound / outbound. 
Although in general the queuing / policing / marking policies are better 
applied outbound (they take less CPU and are more efficient) as routers are 
generally buffering outbound and receiving inbound. Certain fancies features 
sometimes don't work inbound (like WFQ).

> I wonder what means the statement below:
>
> 	Class-Based Policing will not be executed for traffic that passes through
> an interface.

I suspect that this is just a strangely-worded sentence, in fact elsewhere it 
says that CBR on 7500 series won't have an effect on traffic going to / from 
the router proc.

cheers
/rolf

>
> Found at: Class-Based Policing
> http://www.cisco.com/en/US/customer/products/sw/iosswrel/ps1829/products_fe
>ature_guide09186a00801b23f8.html
>
> Regards.
>
> MP.
>
> -----Mensagem original-----
> De: Oliver Boehmer (oboehmer) [mailto:oboehmer at cisco.com]
> Enviada em: sexta-feira, 17 de fevereiro de 2006 15:30
> Para: Gary Roberton; cisco-nsp at puck.nether.net
> Assunto: RE: [c-nsp] bursting and accounting
>
> Gary Roberton <> wrote on Friday, February 17, 2006 6:15 PM:
> > Hello All
> >
> > We have a requirement where a customer wants to have 1Meg internet
> > feed and burst to 2Meg.  We can do this using token buckets.
> >
> > They want to burst only at certain times of the day e.g. 9 a.m. to 10
> > a.m. and have all other burst traffic outside of these hours dropped.
> > Has anyone implemented this type of service policy before?
>
> either use an offline solution which reconfigures your router at the
> specified interval, or try to use time-based ACL together with MQC, i.e.
> something like
>
> class-map ALL-TRAFFIC
>  match access-group 150
> !
> access-list 150 permit ip any any time-range 9to10
> !
> time-range 9to10
>  periodic daily 09:00 to 10:00
> !
> ! too lazy now to come up with the exact TB values,
> ! but you'll get the idea
> policy-map POLICE-IN
>  class ALL-TRAFFIC
>   police cir ..<with burst>..
>     conform-action transmit
>     exceed-action drop
>  class class-default
>   police cir ..<without burst>..
>     conform-action transmit
>     exceed-action drop
>
>
> This might not work on all platforms..
>
> 	oli
>
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-- 
Rolf Mendelsohn
Internet Technologies Angola
Cell:  +244-92-3524981