[j-nsp] JUNOS Equivalent to CISCO IOS next-hop-self

[Eric Van Tol]

Preference and preference2 are not BGP localpref.  Those preferences are
similar to 'weight' in Cisco or a metric local to a route.  The
preference and preference2 are not propagated to other routers in the
network.

-evt

-----Original Message-----
From: Pedro Roque Marques [mailto:roque at juniper.net] 
Sent: Monday, December 15, 2003 8:58 PM
To: Daniel Roesen
Cc: juniper-nsp at puck.nether.net
Subject: Re: [j-nsp] JUNOS Equivalent to CISCO IOS next-hop-self


dr at cluenet.de (Daniel Roesen) writes:

> On Mon, Dec 15, 2003 at 03:51:45PM -0800, Pedro Roque Marques wrote:
> > > Which is generally a bad idea because color influences the best
path
> > > decision process (if only as a very late criteria).
> > 
> > I don't believe that is correct.
> > 
> > In what do you base yourself ? i.e. is that written somewhere ?
> 
> Yes:
> 
>
http://www.juniper.net/techpubs/software/junos/junos61/swconfig61-routin
g/html/protocols-overview4.html#1014007
> 
> See paragraph below "Alternate and Tiebreaker Preferences".
> 
> It's a more detailed modifier to the route preference.
> 
> So, looking from the "How the Active Route Is Determined" it is
> influencing even actually very early in the best path decision
process.
> :-)
> 

Preference and preference2 (BGP localpref) are used as
tiebreakers. color and color2, although stored in the same data
structure internally, are not used as tiebreakers as far as i can
gather from the code or my understanding of what the design is.

mho is that documentation is a tad bit ambiguous.

  Pedro. 
_______________________________________________
juniper-nsp mailing list juniper-nsp at puck.nether.net
http://puck.nether.net/mailman/listinfo/juniper-nsp