Hi, On Mon, Sep 26, 2011 at 01:18:05PM -0700, Derick Winkworth wrote: > I'm trying to find an archived discussion or presentation discussing > why exactly the industry generally settled on having a separate > FIB table for each VRF vs having one FIB table with a column that > identifies the VRF instance? I'm not finding it, but I'm guessing > its because of performance issues?
Lookup would fail for overlapping address space if you lookup
"address first, VRF second".
How do you find the right entry if you have
10.0.0.0/8 vrf red
10.0.0.0/16 vrf green
10.0.1.0/24 vrf blue
and try to look up 10.0.0.1 in vrf red? You'll find the /24 entry, which
is tagged "vrf blue".
Alternatively, you'd need to explode the /8 entry for vrf red if *another*
VRF adds a more specific for that /8.
gert
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