https://app.knowbase.one/vault/rfc/docid/1775
RFC1587: The OSPF NSSA Option
Network Working Group R. Coltun Request for Comments: 1587 RainbowBridge Communications Category: Standards Track V. Fuller Stanford University ...
https://app.knowbase.one/vault/rfc/docid/3467
RFC3101: The OSPF Not-So-Stubby Area (NSSA) Option
Network Working Group P. Murphy Request for Comments: 3101 US Geological Survey Obsoletes: 1587 January 2003 Category: Standards Track The OSPF Not-So-Stubby Area (NSS...