Re: [OSPF] New Version Notification for draft-ietf-ospf-ospfv3-lsa-extend-04.txt

"Acee Lindem (acee)" <acee@cisco.com> Mon, 22 September 2014 18:29 UTC

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From: "Acee Lindem (acee)" <acee@cisco.com>
To: "ospf@ietf.org" <ospf@ietf.org>
Thread-Topic: New Version Notification for draft-ietf-ospf-ospfv3-lsa-extend-04.txt
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Date: Mon, 22 Sep 2014 18:28:54 +0000
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Subject: Re: [OSPF] New Version Notification for draft-ietf-ospf-ospfv3-lsa-extend-04.txt
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This version includes the following additions:

   1. Added IPv4 Forwarding Address sub-TLV
   2. Added restriction that OSPFv3 Extended LSA must include the required TLVs or be considered malformed. 
        - E-Inter-Area-Prefix-LSA must include the Inter-Area-Prefix TLV
        - E-Inter-Area-Router-LSA must include the Inter-Area-Router TLV
        - E-AS-External-LSA must include the External-Prefix TLV
        - E-NSSA-LSA must include the External-Prefix TLV
        - E-Link-LSA must in either the IPv6-Link-Local-Address TLV or the IPv4-Link-Local-Address TLV. 
   
      Also, considered whether we should require at least 1 link in the E-Router-LSA and at least one prefix in the E-Inra-Area-Prefix-LSA but decided against it. 

   3. Added a section on the recommended handling for malformed OSPFv3 extended LSAs.  
   4. Added a statement on graceful restart handling to the compatibility section. 

Thanks,
Acee


On Sep 18, 2014, at 7:05 PM, internet-drafts@ietf.org wrote:

> 
> A new version of I-D, draft-ietf-ospf-ospfv3-lsa-extend-04.txt
> has been successfully submitted by Acee Lindem and posted to the
> IETF repository.
> 
> Name:		draft-ietf-ospf-ospfv3-lsa-extend
> Revision:	04
> Title:		OSPFv3 LSA Extendibility
> Document date:	2014-09-18
> Group:		ospf
> Pages:		36
> URL:            http://www.ietf.org/internet-drafts/draft-ietf-ospf-ospfv3-lsa-extend-04.txt
> Status:         https://datatracker.ietf.org/doc/draft-ietf-ospf-ospfv3-lsa-extend/
> Htmlized:       http://tools.ietf.org/html/draft-ietf-ospf-ospfv3-lsa-extend-04
> Diff:           http://www.ietf.org/rfcdiff?url2=draft-ietf-ospf-ospfv3-lsa-extend-04
> 
> Abstract:
>   OSPFv3 requires functional extension beyond what can readily be done
>   with the fixed-format Link State Advertisement (LSA) as described in
>   RFC 5340.  Without LSA extension, attributes associated with OSPFv3
>   links and advertised IPv6 prefixes must be advertised in separate
>   LSAs and correlated to the fixed-format LSAs.  This document extends
>   the LSA format by encoding the existing OSPFv3 LSA information in
>   Type-Length-Value (TLV) tuples and allowing advertisement of
>   additional information with additional TLVs.  Backward compatibility
>   mechanisms are also described.
> 
> 
> 
> 
> Please note that it may take a couple of minutes from the time of submission
> until the htmlized version and diff are available at tools.ietf.org.
> 
> The IETF Secretariat
>