hi,
     As per rfc 2740,

----------
Each Link-LSA associated with Link L is examined
(these are in the Designated Router's interface
structure for Link L). If the Link-LSA's Advertising
Router is fully adjacent to the Designated Router, the
list of prefixes in the Link-LSA is copied into the
intra-area-prefix-LSA that is being built. Prefixes
having the NU-bit and/or LA-bit set in their Options
field should not be copied, nor should link-local
addresses be copied.
-----------
    i would like to know when the LA bit has to be set in the link lsa
prefix address. Is it in case of a /128 prefix address.
    why is this address with LA bit set, not copied to the intra area prefix
lsa? how would it be possible to route to this address?

thanks in advance
lp

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