Re: [mpls] IPR poll on draft-bryant-mpls-rfc6374-sfl

Stewart Bryant <> Thu, 27 April 2017 15:01 UTC

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To: Loa Andersson <>, "" <>
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From: Stewart Bryant <>
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Date: Thu, 27 Apr 2017 15:59:50 +0100
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Subject: Re: [mpls] IPR poll on draft-bryant-mpls-rfc6374-sfl
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There is Cisco IPR declared against synonymous flow labels (see

This solution uses SFL, so I wrote to the Cisco Patent department on 9 
March this year requesting a disclosure against this draft. I understand 
that the matter is in hand.

Best regards


On 27/04/2017 04:31, Loa Andersson wrote:
> Working Group,
> The author of draft-bryant-mpls-rfc6374-sfl has told us that
> the document is ready to be considered for working adoption.
> The document been through MPLS-RT review. We will do an IPR poll
> parallel to the start of the adoption poll.
> This mail starts the IPR poll.
> Are you aware of any IPR that applies to draft-bryant-mpls-rfc6374-sfl?
> If so, has this IPR been disclosed in compliance with IETF IPR rules
> (see RFCs 3979, 4879, 3669 and 5378 for more details).
> There is one IPR disclosure filed directly against this document.
> If you are listed as a document author or contributor please respond to
> this email regardless of whether or not you are aware of any relevant
> IPR. *The response needs to be sent to the MPLS wg mailing list.* The
> document will not advance to the next stage until a response has been
> received from each author and contributor.
> If you are on the MPLS WG email list but are not listed as an author or
> contributor, then please explicitly respond only if you are aware of any
> IPR that has not yet been disclosed in conformance with IETF rules.
> /Loa
> mpls wg co-chair