[j-nsp] Juniper equivalent of IS-IS "advertise-passive-only"?

Erdem Sener erdems at gmail.com
Mon May 16 14:29:26 EDT 2005


 You should be able to override this "default" behaviour with an
export statement at [edit protocols isis] level.

 Not tryed yet, though :)

 Erdem

On 5/16/05, sthaug at nethelp.no <sthaug at nethelp.no> wrote:
> >  You can do this via an export policy under [edit protocols isis]. If
> > you have a spare subnet for loopback interfaces, it could look
> > something like:
> >
> >
> > policy-statement Isis-Export {
> >     term loopbacks {
> >         from {
> >             route-filter 192.168.1.0/24 prefix-length-range /24-/32;
> >         }
> >         then accept;
> >     }
> >     term therest {
> >         then reject;
> >
> >  Then you implement it to your Is-Is configuration.
> 
> Unfortunately, this was basically the first thing I tried, and it
> doesn't work. Anything I did with such a policy only exported *more*
> into IS-IS, not less. This is probably related to the IS-IS default
> export policy, e.g.
> 
> http://www.juniper.net/techpubs/software/junos/junos72/swconfig72-policy/html/policy-overview-framework3.html
> 
> which says "Reject everything. (The protocol uses flooding to announce
> local routes and any learned routes.)"
> 
> So I guess I'm looking for a way to influence the flooding.
> 
> Steinar Haug, Nethelp consulting, sthaug at nethelp.no
> 


-- 

-erdem



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