Re: [Isis-wg] New Version Notification for draft-xu-isis-routable-ip-address-00.txt

Xiaohu/Uma -

Regardless of the name, I see no reason for this draft. :-)

RFC 5305 and RFC 6119 define the IPv4 and IPv6 Router ID TLVs. Those RFCs specifically state that the router id MAY be used for purposes other than Traffic Engineering.

RFC 5316 clearly states that the TE Router IDs sub-TLVs in the Router Capability TLV were defined to advertise the TE Router IDs as per RFC 5305/RFC 6119 in cases where domain flooding scope is required - which the original TLVs cannot do. It therefore logically follows that the addresses advertised in the sub-TLVs of the Router Capability TLV have the same uses as the area scoped counterparts. So the premise on which your draft is written:

" TE Router ID sub-TLVs as defined in [RFC5316] ... are specifically designed for
   Traffic-Engineering (TE) purpose."

seems FALSE to me.

Please, let's not needlessly add confusion to the protocol by having multiple sub-TLVs which advertise the same information.

    Les

> -----Original Message-----
> From: Isis-wg [mailto:isis-wg-bounces@ietf.org] On Behalf Of Xuxiaohu
> Sent: Wednesday, May 28, 2014 8:46 PM
> To: isis-wg@ietf.org
> Subject: [Isis-wg] FW: New Version Notification for draft-xu-isis-routable-
> ip-address-00.txt
> 
> Hi all,
> 
> To avoid the confusion between routable IP addresses and router IDs, this
> draft (http://tools.ietf.org/html/draft-xu-isis-ipv6-router-id-00) has been
> replaced by the following draft (http://tools.ietf.org/html/draft-xu-isis-
> routable-ip-address-00) according to the previous discussion in the mailing-
> list. Thanks a lot for those people who have given many valuable comments
> and suggestions on the former draft. Any further comments on the latter
> draft are welcome.
> 
> Best regards,
> Xiaohu/Uma
> 
> > -----Original Message-----
> > From: internet-drafts@ietf.org [mailto:internet-drafts@ietf.org]
> > Sent: Thursday, May 29, 2014 11:20 AM
> > To: Uma Chunduri; Xuxiaohu; Uma Chunduri; Xuxiaohu
> > Subject: New Version Notification for draft-xu-isis-routable-ip-address-
> 00.txt
> >
> >
> > A new version of I-D, draft-xu-isis-routable-ip-address-00.txt
> > has been successfully submitted by Xiaohu Xu and posted to the IETF
> repository.
> >
> > Name:		draft-xu-isis-routable-ip-address
> > Revision:	00
> > Title:		Carrying Routable IP Addresses in IS-IS Router Capability TLV
> > Document date:	2014-05-29
> > Group:		Individual Submission
> > Pages:		4
> > URL:
> > http://www.ietf.org/internet-drafts/draft-xu-isis-routable-ip-address-
> 00.txt
> > Status:
> > https://datatracker.ietf.org/doc/draft-xu-isis-routable-ip-address/
> > Htmlized:       http://tools.ietf.org/html/draft-xu-isis-routable-ip-address-
> 00
> >
> >
> > Abstract:
> >    This document proposes two new sub-TLVs of the IS-IS Router
> >    CAPABILITY TLV, called Routable IPv4 Address sub-TLV and Routable
> >    IPv6 Address sub-TLV respectively.
> >
> >
> >
> >
> > 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
> 
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