Re: BGP RIB Failure

From: one atatime (pickinmynose@googlemail.com)
Date: Tue Jun 17 2008 - 07:20:09 ART


> This is normal behaviour. What you are seeing is a rib failure because
> there is a route already in the local routing table that has a better AD
> than the IBGP one. What happening is that ther routes from AS300 are being
> redistributed into OSPF and entering R1 as OSPF external routes (AD20) these
> routes are preferable over the IBG routes (AD200) and as such BGP cannot
> install them in the local routing table. This does not effect the
> capability of R1 to export them to its EBGP peer so it should all be OK
> depending on the restriction of the LAB.

Its not normal to redistribute full BGP into the local IGP, a better
alternative is to create a full mesh of IBGP peers and turn of
synchronization. It doesn't scale to well though and this will allow you to
move onto the next section on router reflectors. Its almost as if someone
had planned it this way.

Pick



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