[j-nsp] Prefix-Specific Action

[Jonathan Tse]

Thanks Josef,

Your explanation is crystal clear! May be the manual should follow your
instead :)

Is there any hardware requirement like FPC-II to enable such feature and how
many subnet that a M20 can handle?

Million 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 7:38 PM
Subject: Re: [j-nsp] Prefix-Specific Action


> 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
> > >
> >
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