Hi all, Can this relaxation be applicable to all the future OSFPv2 documents ?
Thanks Fatai From: [email protected] [mailto:[email protected]] On Behalf Of Acee Lindem Sent: 2011年11月28日 9:14 To: [email protected] List Cc: [email protected] Subject: [OSPF] Updates to ASON Routing for OSPFv2 Protocols (RFC 5787bis) will Update RFC 5786 Please note that this document relaxes the RFC 5786 restriction that a Node Attribute TLV may only appear in a single OSPF TE LSA. Here is the text: In order to support ASON reachability advertisement, the Node Attribute TLV defined in [RFC5786] is used to advertise the combination of a TE Router ID and its set of associated reachable address prefixes. The Node Attribute TLV can contain the following sub-TLVs: - TE Router ID sub-TLV: Length: 4; Defined in Section 6.2 - Node IPv4 Local Address sub-TLV: Length: variable; [RFC5786] - Node IPv6 Local Address sub-TLV: Length: variable; [RFC5786] A router may support multiple transport nodes as discussed in section 6, and, as a result, may be required to advertise reachability (ASON SNPPs) separately for each transport node. As a consequence, it MUST be possible for the router to originate more than one TE LSA containing the Node Attribute TLV when used for ASON reachability advertisement. Hence, the Node Attribute TLV [RFC5786] advertisement rules must be relaxed for ASON. A Node Attribute TLV MAY appear in more than one TE LSA originated by the RC when the RC is advertising reachability information for a different transport node identified by the Local TE Router Sub-TLV (refer to section 6.1). Here is a link to the document: http://www.ietf.org/id/draft-ietf-ccamp-rfc5787bis-03.txt If you have any concerns with this change, please send them to this list with the CCAMP list copied. Thanks, Acee
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