Re: [Roll] RPL Patents

Le 20/01/2010 07:58, Pascal Thubert (pthubert) a écrit :
> Hi:
>
> Just to make things straight, Cisco published to IETF and announced
> that IPR on April 16th to the ROLL ML:
> http://www.ietf.org/mail-archive/web/roll/current/msg01181.html

YEs, I thought the same, but after digging I realize the above statement
pertains to :

           draft-thubert-roll-fundamentals-01

whereas the statement forwarded by 'Rav' pertains to another draft:

                   draft-dt-roll-rpl

So we end up with two Cisco IPR statements, which is good IMHO.  My
interest, in this RoLL landscape, is whether there's somebody else than 
Cisco claiming IPR on RoLL technologies and whether the different claims 
converge to the benefit of everybody else.

Alex

>
> There has been some administrative delay porting the message to the
> RPL draft, but the content is basically the same.
>
> Cheers;
>
> Pascal
>
> -----Original Message----- From: roll-bounces@ietf.org
> [mailto:roll-bounces@ietf.org] On Behalf Of Ietf Roll Sent: mardi 19
> janvier 2010 23:05 To: roll@ietf.org Subject: [Roll] RPL Patents
>
> ROLLers, Did anyone see the Cisco announcement about IPR in RPL.  If
> you didn't it was probably because it was only sent to the IETF IPR
> list.  I don't know why it wasn't sent to the ROLL list.  If you
> didn't see it here is a link:
>
> http://www.ietf.org/mail-archive/web/ipr-announce/current/msg00167.html
>
>  I'm a bit confused and concerned that this IPR annoucement was sent
> so late in the process (December 3) - given that Cisco folks were
> working on the design team from the beginning.  We are now so late in
> the design and development that it would be nearly impossible for us
> to figure out how avoid this patent.
>
> There is a free license to use the patent in RPL so long as you and
> your company doesn't sue Cisco over ANY other patent for ANYTHING.
>
> Can we avoid the use of the patented technology in RPL?  Should we?
> Do we want to?
>
> Did this IPR announcement come too late?
>
> Rav
>
>
>
>
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