Re: [spring] IPR Disclosure Cisco Systems, Inc.'s Statement about IPR related to RFC 8402

Jeff Tantsura <jefftant.ietf@gmail.com> Tue, 19 April 2022 02:08 UTC

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From: Jeff Tantsura <jefftant.ietf@gmail.com>
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Date: Mon, 18 Apr 2022 19:08:38 -0700
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References: <CECE6CCC-8B11-4C0D-ADCF-E85383E08A17@tony.li>
Cc: IETF Secretariat <ietf-ipr@ietf.org>, spring@ietf.org, draft-ietf-spring-segment-routing@ietf.org, ipr-announce@ietf.org
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To: Tony Li <tony.li@tony.li>
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Subject: Re: [spring] IPR Disclosure Cisco Systems, Inc.'s Statement about IPR related to RFC 8402
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To my memory, Redback (Albert Tian) published draft-tian-mpls-lsp-source-route aroun 2004 and filed IPR a year or so before that ;-)

Cheers,
Jeff

> On Apr 18, 2022, at 15:58, Tony Li <tony.li@tony.li> wrote:
> 
> 
> Let me see if I understand the timeline here:
> 
> 2013, June 28, Draft submission of draft-filsfils-rtgwg-segment-routing-00
> 2018, July, Published as RFC 8402
> 2020, July 30, US patent filed for Enforcing strict shortest path forwarding using strict segment identifiers
> 2022, Apr. 18, IPR declaration filed
> 
> Do I have that right?
> 
> Tony
> 
> 
>> On Apr 18, 2022, at 1:46 PM, IETF Secretariat <ietf-ipr@ietf.org> wrote:
>> 
>> Dear Clarence Filsfils, Stefano Previdi, Les Ginsberg, Bruno Decraene, Stephane Litkowski, Rob Shakir:
>> 
>> 
>> An IPR disclosure that pertains to your RFC entitled "Segment Routing
>> Architecture" (RFC8402) was submitted to the IETF Secretariat on 2022-04-18
>> and has been posted on the "IETF Page of Intellectual Property Rights
>> Disclosures" (https://datatracker.ietf.org/ipr/5626/). The title of the IPR
>> disclosure is "Cisco Systems, Inc.'s Statement about IPR related to RFC 8402"
>> 
>> 
>> Thank you
>> 
>> IETF Secretariat
>> 
>> 
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> 
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