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Re: [Idr] WG Adoption call for drafts for Flow Specification option 1 (RFC5575 additions (filters/actions) 3/25 to 4/8/2016

"Russ White" <7riw77@gmail.com> Thu, 31 March 2016 18:53 UTC

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From: Russ White <7riw77@gmail.com>
To: 'Susan Hares' <shares@ndzh.com>, "'idr@ietf. org'" <idr@ietf.org>
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Date: Thu, 31 Mar 2016 14:53:32 -0400
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Subject: Re: [Idr] WG Adoption call for drafts for Flow Specification option 1 (RFC5575 additions (filters/actions) 3/25 to 4/8/2016
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> https://datatracker.ietf.org/doc/draft-eddy-idr-flowspec-packet-rate/

Support -- seems useful for DDoS protection.

> https://datatracker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/

Support.

> https://datatracker.ietf.org/doc/draft-li-idr-flowspec-redirect-general
> ized-sid/

Support.

> https://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-label/

Support.

> https://datatracker.ietf.org/doc/draft-litkowski-idr-flowspec-interface
> set/

Support.

> <https://datatracker.ietf.org/doc/draft-li-idr-flowspec-redirect-genera
> lized-sid/>

Support.

> https://datatracker.ietf.org/doc/draft-vandevelde-idr-flowspec-path-redi
> rect/

Support.

> https://datatracker.ietf.org/doc/draft-yong-idr-flowspec-mpls-match/

Support.

> https://datatracker.ietf.org/doc/draft-hao-idr-flowspec-redirect-tunnel

This one seems a little dangerous to me... Do we have actual use cases for
this? What protection would there be against forming permanent, stable,
routing loops when using this -- which would be particularly bad in the case
of copied packets looping back to the point of copy, and being recopied? I
guess there's always TTL, but... This one I would need to think about more
before supporting in full.

/R

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