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Re: [Banana] Charter Text w/Milestones

"Sri Gundavelli (sgundave)" <sgundave@cisco.com> Tue, 11 April 2017 22:36 UTC

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From: "Sri Gundavelli (sgundave)" <sgundave@cisco.com>
To: Juliusz Chroboczek <jch@irif.fr>
CC: "banana@ietf.org" <banana@ietf.org>
Thread-Topic: [Banana] Charter Text w/Milestones
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Date: Tue, 11 Apr 2017 22:36:32 +0000
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References: <96A7BC33-FB64-487A-A60D-7AB8504C9DDF@gmail.com> <E6C17D2345AC7A45B7D054D407AA205C68D24314@eusaamb105.ericsson.se> <D5093953.266331%sgundave@cisco.com> <6eb47203c5f447d3bd3dd1e8c38d0f5c@BTWP000357.corp.ads> <D5094D7C.223DAC%sgundave@cisco.com> <8760ifu27d.wl-jch@irif.fr> <D51252DC.26CD6B%sgundave@cisco.com> <87vaqaeiv8.wl-jch@irif.fr>
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Subject: Re: [Banana] Charter Text w/Milestones
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On 4/11/17, 2:26 PM, "Juliusz Chroboczek" <jch@irif.fr> wrote:

>> (refer to RFC7629, RFC6088, RFC6089, RFC5555, RFC7864 and few other
>> I-D¹s)
>
>Ok, I've now had a look -- and RFC 7629 is interesting.  A couple
>questions:
>
>  (1) What's the recommended way to send a timestamped packet over a
>tunnel?
>  (2) What's the recommended way to send vendor-specific or experimental
>      data over a tunnel?
>  (3) Are there any open-source implementations one could build on?
>
>-- Juliusz


GRE encapsulation header can be used for notifying user-plane related
hints to a GRE tunnel peer. For example, RFC2890 carries a key sequence
extension which is used for overlapping IP use-cases and the corresponding
control plane signaling is in MIP4, MIPv6, PMIPv6, GTP and IKEv2
protocols.  There is no general Vendor-specific extension support for GRE.
However, there have been previous attempts, but the IETF did not agree for
vendor-specific/experimental extensions to GRE or to ND (Ex:
https://tools.ietf.org/html/draft-gundavelli-6man-ipv6-nd-vendor-spec-optio
ns-00, https://tools.ietf.org/html/draft-song-gre-tlv-extension-00). Now,
if there is a need to carry additional hints in user plane, GRE extensions
can be proposed and INT area is a great start as it already looking at
many GRE extensions.


Sri

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