[j-nsp] WAN input prioritization on MX

Ivan Ivanov ivanov.ivan at gmail.com
Wed Oct 17 03:11:12 EDT 2012


Hi,

In that case you try Tricolor marking policer to mark the excessive traffic
and drop it on output. It is not exactly the same but could help.

http://www.juniper.net/techpubs/en_US/junos10.4/information-products/pathway-pages/cos/tricolor-marking-policers.html

HTH,
Ivan,

On Wed, Oct 17, 2012 at 12:23 AM, Gustavo Santos <gustkiller at gmail.com>wrote:

> Krasimir,
>
> Just finished the  reading the class of service section from Juniper MX
> Series: A Comprehensive Guide to Trio Technologies , and you are righ. What
> I´m trying to do is an ingress queuing and the book talks that it´s still
> unsuported on 11.4 and I checked the changelogs and on 12.2 is still
> unsuported.
>
>
> gustavo at BRD01# commit check
> [edit class-of-service interfaces ge-1/1/4 unit 0]
>   'input-shaping-rate'
>     cannot configure bandwidth (pic has no CoS queuing)
> error: configuration check-out failed
>
>
> Gustavo Santos
> Analista de Redes
> CCNA , MTCNA , MTCRE, MTCINE, JUNCIA-ER
>
>
>
> 2012/10/16 Krasimir Avramski <krasi at smartcom.bg>
>
> >
> >
> > On Mon, Oct 15, 2012 at 4:40 PM, Gustavo Santos <gustkiller at gmail.com
> >wrote:
> >
> >>
> >> For instance: If the current wan ingress traffic total is 450mbits and
> >> high
> >> priority traffic is 100mbits, and low priority is 350mbits = no packet
> >> discard, but if traffic towards high priority subnet is 300mbits and low
> >> priority is 300mbits, then the queuing / scheduler will drop the low
> >> priority traffic until the sources traffic gets shaped to 200mbits for
> the
> >> low priority and the high priority gets 300mbits.
> >>
> >> On Linux it's quite simple to achieve.
> >>
> >>
> > AFAIK this is only possible with ingress queuing (EQ2, DPC-EQ hardware,
> > ingress CoS not enabled by default)  and simple filters:
> >
> >
> http://www.juniper.net/techpubs/en_US/junos10.4/topics/usage-guidelines/cos-configuring-ingress-hierarchical-cos-on-enhanced-queuing-dpcs.html
> >
> >
> http://www.juniper.net/techpubs/en_US/junos10.4/topics/concept/mf-classifiers-simple-filters-overview-cos-config-guide.html
> >
> >
> http://www.juniper.net/techpubs/en_US/junos10.4/topics/example/mf-classifiers-example-simple-filters-cos-config-guide.html
> >
> > Unfortunately MPCs are still not supported....
> >
> > Best Regards,
> > Krasi
> >
> >
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>



-- 
Best Regards!

Ivan Ivanov


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