[j-nsp] Prefix-Specific Action

[Josef Buchsteiner]

At 12:43 AM 1/15/2003, Jonathan Tse wrote:
>Hi Josef,
>
>that is cool! lots of people would love it! one more question: if two
>interfaces shares the same filter with prefix-specific action being used
>(let's say 1Mbps per /32 in a /24), does the policy shape the traffic per
>interface (meaning max 1Mbps each interface for that /32) or regardless of
>the number of interfaces (meaning total 1Mbps thru the above two interfaces
>for that /32)?


Jonathan,
         the prefix-specific is done per address not per interface.
i.e. you want to police all http traffic to certain host in /24 subnet where
all the host are in a /30 range you do this for all your host regardless
of the interface. You still can add an interface-policer which police
at the aggregate level for a specific interface. Given the example above 
you could also
say that all the http traffic to each hosts should be 500kbps but the total
of all http traffic should never go higher then 1Mbps which can be accomplished
with the next term statement ( aka multilevel policer ... )


thanks
Josef






>thanks!
>Jonathan.
>
>----- Original Message -----
>From: "Josef Buchsteiner" <josefb at juniper.net>
>To: "Jonathan Tse" <jonathantse at pacific.net.sg>;
><juniper-nsp at puck.nether.net>
>Sent: Wednesday, January 15, 2003 4:25 AM
>Subject: Re: [j-nsp] Prefix-Specific Action
>
>
> > At 05:31 AM 1/14/2003, Jonathan Tse wrote:
> > >Hi,
> > >
> > >Any idea what is this Prefix-Specific Action for?
> > >
> >
> >http://www.juniper.net/techpubs/software/junos/junos56/swconfig56-policy/ht
>m
> > >l/policer-config9.html#1046287
> > >
> >
> >http://www.juniper.net/techpubs/software/junos/junos56/swconfig56-policy/ht
>m
> > >l/policer-config10.html#1046825
> > >
> > >In layman's term, is it for policing individual address (like 1Mbps per
>/32)
> > >within a given prefixes (/24)?
> >
> > this is exactly what the motivation is as you stated
> > to police on a more granular level
> >
> > regards
> > Josef
> >
> >
> > >Thanks,
> > >Jonathan Tse
> > >Senior Network Engineer, Pacific Internet - Singapore
> > >NOC: +65 6872-1010 DID: +65 6771-0843 FAX: +65 6872-6674
> > >
> > >_______________________________________________
> > >juniper-nsp mailing list juniper-nsp at puck.nether.net
> > >http://puck.nether.net/mailman/listinfo/juniper-nsp
> >
>
>_______________________________________________
>juniper-nsp mailing list juniper-nsp at puck.nether.net
>http://puck.nether.net/mailman/listinfo/juniper-nsp