Subject: [Technical Errata Reported] RFC4577 (2264)

From: RFC Errata System <[email-masked]>
Date: Mon, 17 May 2010 18:53:18 -0700 (PDT)

The following errata report has been submitted for RFC4577,
"OSPF as the Provider/Customer Edge Protocol for BGP/MPLS IP Virtual Private Networks (VPNs)".

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You may review the report below and at:
http://www.rfc-editor.org/errata_search.php?rfc=4577&eid=2264

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Type: Technical
Reported by: William McCall <[email-masked]>

Section: 4.2.6

Original Text
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[...] If BGP installs a route of one of these types in the VRF, and if that route is selected for redistribution into OSPF, it will be advertised by OSPF in either a type 3 or a type 5 LSA, depending on the domain identifier.

Corrected Text
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[...]If BGP installs a route of one of these types in the VRF, and if that route is selected for redistribution into OSPF, it will be advertised by OSPF in either a type 3, type 5, or type 7 LSA, depending on the domain identifier and the type of area the PE/CE link belongs to.

Notes
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Suggested because reading 4.2.6 is contradictory with the following:

4.2.8.1.  External Routes

[...]If the route is advertised, and the PE/CE link belongs to a NSSA area, it is advertised in a type 7 LSA.[...]

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RFC4577 (draft-ietf-l3vpn-ospf-2547-06)
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Title               : OSPF as the Provider/Customer Edge Protocol for BGP/MPLS IP Virtual Private Networks (VPNs)
Publication Date    : June 2006
Author(s)           : E. Rosen, P. Psenak, P. Pillay-Esnault
Category            : PROPOSED STANDARD
Source              : Layer 3 Virtual Private Networks
Area                : Routing
Stream              : IETF
Verifying Party     : IESG