Keshava,
it's up to the implementation how it handles the aggregation of the BGP
redistributed prefixes on PE. The most obvious choice is to treat it the
same way as regular redistribution in which case an external LSA is
generated for the summary itself.
RFC4577 only specifies the behavior when no aggregation is done on PE:
In the following, we specify what is reported, in OSPF LSAs, by the
PE to the CE, assuming that the PE is not configured to do any
further summarization or filtering of the routing information before
reporting it to the CE."
thanks,
Peter
On 16.11.2010 11:33, Keshava.Ayanur wrote:
Hi,
Any thoughts about aggregating the “Summary LSA’s’ originated in PE
which was redistributed from BGP .
Regards,
Keshava.A.K.
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