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Re: [Lsr] 答复: WG Last Call draft-ietf-lsr-isis-invalid-tlv

"Les Ginsberg (ginsberg)" <ginsberg@cisco.com> Fri, 03 January 2020 05:28 UTC

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From: "Les Ginsberg (ginsberg)" <ginsberg@cisco.com>
To: Aijun Wang <wangaijun@tsinghua.org.cn>, 'Christian Hopps' <chopps@chopps.org>, "lsr@ietf.org" <lsr@ietf.org>
CC: "lsr-ads@ietf.org" <lsr-ads@ietf.org>, 'Antoni Przygienda' <prz@juniper.net>
Thread-Topic: [Lsr] 答复: WG Last Call draft-ietf-lsr-isis-invalid-tlv
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Date: Fri, 03 Jan 2020 05:28:50 +0000
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Subject: Re: [Lsr] 答复: WG Last Call draft-ietf-lsr-isis-invalid-tlv
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Aijun -



Since advertising some sort of capability would also be unusable until all routers were upgraded to understand the new capability advertisement this does not help. 😊



The consequences of enabling a form of authentication which is not supported by all nodes is an inconsistent LSPDB - which means protocol function is broken.



I would also point out that the incompatibilities are discussed in the original specifications (RFC 5304 and RFC 6232) - both of which have been published for a number of years. The points being made in this regard in this draft aren't new.



   Les



> -----Original Message-----

> From: Lsr <lsr-bounces@ietf.org> On Behalf Of Aijun Wang

> Sent: Thursday, January 02, 2020 6:31 PM

> To: 'Christian Hopps' <chopps@chopps.org>; lsr@ietf.org

> Cc: lsr-ads@ietf.org; 'Antoni Przygienda' <prz@juniper.net>

> Subject: [Lsr] 答复: WG Last Call draft-ietf-lsr-isis-invalid-tlv

>

> Is there any method to indicate or negotiate the support of

> ISO10589/RFC5304/RFC6233 because they are not back compatible?

> What will be the consequence when not all of the routers within the IGP

> domain support the same RFC?

> Will it valuable to add more clarification for the above incompatible

> scenario, instead of saying "... ... therefore can only be safely enabled

> when all nodes support the extensions"?

>

>

> Best Regards.

>

> Aijun Wang

> China Telecom

>

> -----邮件原件-----

> 发件人: lsr-bounces@ietf.org<mailto:lsr-bounces@ietf.org> [mailto:lsr-bounces@ietf.org] 代表 Christian

> Hopps

> 发送时间: 2020年1月3日 3:07

> 收件人: lsr@ietf.org<mailto:lsr@ietf.org>

> 抄送: lsr-ads@ietf.org<mailto:lsr-ads@ietf.org>; Christian Hopps; Antoni Przygienda

> 主题: [Lsr] WG Last Call draft-ietf-lsr-isis-invalid-tlv

>

> This begins a 2 week WG Last Call, ending after Jan 16th, 2020, for

> draft-ietf-lsr-isis-invalid-tlv.

>

>   https://datatracker.ietf.org/doc/draft-ietf-lsr-isis-invalid-tlv/

>

> Tony P (other authors already responded during the adoption poll), please

> indicate your knowledge of any IPR related to this work to the list as well.

>

> Thanks,

> Chris & Acee.

>

> _______________________________________________

> Lsr mailing list

> Lsr@ietf.org<mailto:Lsr@ietf.org>

> https://www.ietf.org/mailman/listinfo/lsr

>

> _______________________________________________

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