[j-nsp] External routes in OSPF database

sthaug at nethelp.no sthaug at nethelp.no
Sat Jul 9 16:26:37 EDT 2011


> No, junos does not automatically redistribute bgp into igp by default. 
> 
> From a quick read it sounds to me like the cisco is set to redistribute bgp into ospf (though you did say isis is the igp). That would explain why all the externals appear after ospf adjacency up. 
> Perhaps due to rule of sync, which is normally disabled to avoid such a ridiculous need (that is, to require that the igp have a route before it can be advertised by BGP).

One might also ask - why not use BGP instead of OSPF towards the CPE?
Sounds like BGP would be a much more appropriate tool for the job.

Steinar Haug, Nethelp consulting, sthaug at nethelp.no


More information about the juniper-nsp mailing list