Re: [Network-tokens] Network Tokens and HBH option

Lorenzo Colitti <lorenzo@google.com> Mon, 13 July 2020 08:14 UTC

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From: Lorenzo Colitti <lorenzo@google.com>
Date: Mon, 13 Jul 2020 17:14:06 +0900
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To: Tom Herbert <tom@herbertland.com>
Cc: 6MAN <6man@ietf.org>, Yiannis Yiakoumis <yiannis@selfienetworks.com>, network-tokens@ietf.org
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Subject: Re: [Network-tokens] Network Tokens and HBH option
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Is a hop-by-hop option the right tool here? They have several disadvantages:

   1. The presence of IPv6 extension headers often causes packets to be
   dropped, so anything that relies on them is impossible to deploy reliably
   on the Internet.
   2. They don't work with forwarded traffic (e.g., a mobile hotspot)
   because routers aren't really permitted to add extension headers.
   3. They are expensive because IIRC for a long time the standards said
   that all intermediate nodes on the path must process them. Many router
   implementations do not do this, but probably some do.


On Sat, Jul 11, 2020 at 12:54 AM Tom Herbert <tom@herbertland.com> wrote:

> Hello,
>
> This is a draft on "Network Tokens" which is a form of host-to-network
> signaling for the purposes of providing a highly granular network
> services and QoS to applications. A primary mechanism to carry the
> signaling is expected to be a Hop-by-Hop option.
>
> https://tools.ietf.org/html/draft-yiakoumis-network-tokens-01
>
> There is also a mailing list in
> https://www.ietf.org/mailman/listinfo/network-tokens
>
> We are planning to present in tsvwg and app aware networking and
> possibly have a side meeting on this topic in IETF108.
>
> Thanks,
> Tom
>
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