[j-nsp] Classify packets with BGP community policy

[Guy Davies]

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Hi Josef,

I think this would actually be (at least partially) under Policy Framework,
rather than Interfaces and CoS.  Take a look at
http://www.juniper.net/techpubs/software/junos/junos57/swconfig57-policy/htm
l/policy-framework-config8.html#1017021.  This table defines policy actions
including "then class class-name".  The actual definition of class-name
would be configured under class-of-service which *is* documented under
Interfaces and CoS.  *In addition* to this, you'd need to define a rewrite
rule (which is also documented under Interfaces and CoS) so that all packets
leaving via a particular output queue have the inet-precedence rewritten to
a particular value.  If you don't do this, even though the packet is placed
in a particular queue and receives particular treatment based upon the
community attached to that route at ingress, you won't give it the same (AF)
treatment across your network.

Regards,

Guy

> -----Original Message-----
> From: Josef Buchsteiner [mailto:josefb at juniper.net]
> Sent: Tuesday, April 15, 2003 10:32 AM
> To: Alexander Kjellerstedt; juniper-nsp at puck.nether.net
> Subject: Re: [j-nsp] Classify packets with BGP community policy
> 
> 
> Alexander,
>          please look at this userguide under the section 
> "override the 
> input classification"
> where you configure any policy and the actions is class
> 
> http://www.juniper.net/techpubs/software/junos/junos57/swconfi
> g57-interfaces/download/swconfig57-interfaces.pdf
> 
> 
> thanks
> Josef
> 
> 
> At 11:11 AM 4/15/2003, Alexander Kjellerstedt wrote:
> >Hello!
> >
> >Is there anyone out there who knows if JunOs has support for 
> what Cisco call
> >QPPB?
> >I'm trying to classify packets to Assured Forwarding class 
> and rewrite TOS
> >field when a packet comes in to a destination that has a certain BGP
> >community.
> >
> >
> >Regards
> >
> >
> >//Alexander
> >
> >
> >
> >_______________________________________________
> >juniper-nsp mailing list juniper-nsp at puck.nether.net
> >http://puck.nether.net/mailman/listinfo/juniper-nsp
> 
> _______________________________________________
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> 

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