Subject: [OSPF] [Errata Verified] RFC6860 (3977)

From: RFC Errata System <[email-masked]>
Date: Mon, 12 May 2014 09:32:36 -0700 (PDT)

The following errata report has been verified for RFC6860,
"Hiding Transit-Only Networks in OSPF". 

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You may review the report below and at:
http://www.rfc-editor.org/errata_search.php?rfc=6860&eid=3977

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Status: Verified
Type: Technical

Reported by: Peter Paluch <[email-masked]>
Date Reported: 2014-04-28
Verified by: Alia Atlas (IESG)

Section: 3

Original Text
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   To hide a transit-only network in [OSPFv3], the IPv6 address prefixes
   are omitted from the router-LSA.  Consequently, when a Designated
   Router builds an intra-area-prefix-LSA referencing a network-LSA,
   these IPv6 address prefixes will be omitted.

Corrected Text
--------------
   To hide a transit-only network in [OSPFv3], the associated IPv6
   address prefixes MUST be omitted from the link-LSA. Consequently,
   when a Designated Router builds an intra-area-prefix-LSA referencing
   a network-LSA, these IPv6 address prefixes will be omitted.

Notes
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The change essentially reverts the paragraph back to the formulation from http://tools.ietf.org/html/draft-ietf-ospf-prefix-hiding-05#section-3 . Most importantly, the term "router-LSA" is replaced with "link-LSA", as there are already no prefixes carried in OSFPv3 router-LSA whatsoever, and the removal of transit-network prefixes influences link-LSAs and intra-area-prefix-LSAs. Also, the change reintroduces the keyword "MUST" that underlines the behavior that is crucial to the proper implementation of the feature.

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RFC6860 (draft-ietf-ospf-prefix-hiding-07)
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Title               : Hiding Transit-Only Networks in OSPF
Publication Date    : January 2013
Author(s)           : Y. Yang, A. Retana, A. Roy
Category            : PROPOSED STANDARD
Source              : Open Shortest Path First IGP
Area                : Routing
Stream              : IETF
Verifying Party     : IESG