[j-nsp] auto-export vs rib-groups

Joe Soricelli jms at juniper.net
Thu Nov 6 10:25:37 EST 2003


Agree with all but the 'flexible' part. Auto-export is way easier but it
moves ALL of the routes between the VRFs. Rib-groups require a lot of
thought and configuration, but you have the option of applying routing
policies to the groups which allows you fine-grained control over which
routes are shared and which are not. So, I would argue that rib-groups
are more flexible in the long run.

-joe

> -----Original Message-----
> From: juniper-nsp-bounces at puck.nether.net 
> [mailto:juniper-nsp-bounces at puck.nether.net] On Behalf Of 
> Chris Hellberg
> Sent: Thursday, November 06, 2003 3:08 AM
> To: MPLS Newbie; juniper-nsp at puck.nether.net
> Subject: RE: [j-nsp] auto-export vs rib-groups
> 
> 
> R.N.,
> 
> Using auto-export is a lot more flexible than rib-groups both 
> from a theoretical and experience point-of-view; rib-groups 
> bring pain.
> 
> It's also easier to explain to others how the coupling 
> between auto-export and policies work rather than try and 
> explain how rib-groups import and export routes between VRFs 
> (the configuration also changes depending on the protocol the 
> route has been learned from).
> 
> Chris
> 
> Just an addendum, if you've got any IPVPN policies that once 
> used a match on protocol bgp as well as a community, you'll 
> need to remove that for routes you wish to import that are 
> imported from the same node.
> 
> 
> -----Original Message-----
> From:	MPLS Newbie [mailto:routernewbie at hotmail.com]
> Sent:	Thu 11/6/2003 6:56 PM
> To:	juniper-nsp at puck.nether.net
> Cc:	
> Subject:	[j-nsp] auto-export vs rib-groups
> Dear List,
> 
>    Can someone comment based on operational experience or 
> router-geeking 
> experience regarding to using the knob of auto-export to 
> exchange routes 
> among vrf's vs using rib-groups to achieve the same?
> 
> any pro's or con's?
> 
> Much appreciated.
> 
> Router Newbie
> 
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