RFC 3101

The OSPF Not-So-Stubby Area (NSSA) Option, January 2003

Canonical URL:
https://www.rfc-editor.org/rfc/rfc3101.txt
File formats:
Plain TextPDF
Status:
PROPOSED STANDARD
Obsoletes:
RFC 1587
Author:
P. Murphy
Stream:
IETF
Source:
ospf (rtg)

Cite this RFC: TXT  |  XML

DOI:  10.17487/RFC3101

Discuss this RFC: Send questions or comments to ospf@ietf.org

Other actions: View Errata  |  Submit Errata  |  Find IPR Disclosures from the IETF


Abstract

This memo documents an optional type of Open Shortest Path First (OSPF) area that is somewhat humorously referred to as a "not-so-stubby" area (or NSSA). NSSAs are similar to the existing OSPF stub area configuration option but have the additional capability of importing AS external routes in a limited fashion. The OSPF NSSA Option was originally defined in RFC 1587. The functional differences between this memo and RFC 1587 are explained in Appendix F. All differences, while expanding capability, are backward-compatible in nature. Implementations of this memo and of RFC 1587 will interoperate. [STANDARDS-TRACK]


For the definition of Status, see RFC 2026.

For the definition of Stream, see RFC 4844.


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