The OSPFv3 Prefix Suppression Support feature allows you to hide IPv4 and IPv6 prefixes that are configured on interfaces
In OSPFv3, addressing semantics have been removed from the OSPF protocol packets and the main LSA types, leaving a network-protocol-independent
core. This means that Router-LSAs and network-LSAs no longer contain network addresses, but simply express topology information.
The process of hiding prefixes is simpler in OSPFv3 and suppressed prefixes are simply removed from the intra-area-prefix-LSA.
Prefixes are also propagated in OSPFv3 via link LSAs
The OSPFv3 Prefix Suppression feature provides a number of benefits.The exclusion of certain prefixes from adverstisements
means that there is more memory available for LSA storage, bandwidth and buffers for LSA flooding, and CPU cycles for origination
and flooding of LSAs and for SPF computation. Prefixes are also filtered from link LSAs. A device only filters locally configured
prefixes, not prefixes learnt via link LSAs. In addition, security has been improved by reducing the possiblity of remote
attack with the hiding of transit-only networks.