Extensions to OSPFv2 for Advertising Optional Prefix/Link Attributes
Sina Mirtorabi · 2007
There are applications that require additional attributes to be advertised with an OSPF link or prefix. The existing OSPF LSA formats do not allow for backward compatible extension to advertise these attributes. This draft proposes an extension to OSPF for advertising additional attributes which will be associated with a link or prefix. It also introduces the support of administrative tags for any link type in the prefix-LSA and any prefix in summary- LSAs, NSSA-LSAs, or AS-external-LSAs.