07-23-2004 04:15 AM
Hi,
Can someone please clarify for me the role played by OSPF in the backbone when ew are using OSPF between PE and CE. How is this different to when we're using a differenr PE-CE routing protocol?
A route with the "down bit" set, is it dropped by MP-BGP or by the bacbone OSPF?
Thanks
07-23-2004 05:04 AM
The OSPF instance used by the backbone and the one used for the VRF are different and there is no interaction between the two.
Hope this helps,
07-23-2004 05:12 AM
Thank you,
But does this mean that there's no requirement whatsoever to run OSPF in the backbone when using PE-CE OSPF (ISIS can be used). I was made to believe that this is a requirement.
07-23-2004 05:42 AM
Correct. You could run OSPF between the PE and CE and ISIS (or any other rp in the core).
Hope this helps,
08-02-2004 05:30 AM
a route with the "down bit" set, will be dropped by the "vrf OSPF" of the PE
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