Re: [Int-area] Fwd: New Version Notification for draft-herbert-host2netsig-00.txt

2023-11-04 Thread Michael Richardson

Tom Herbert  wrote:
> This is an update to the host to network signaling draft. Note the name
> is now properly host2netsig.

> Other changes include: * Add suggestion that signals could be in a
> namespace managed by IANA and allow vendors to define their own signals

I found section 3 vs section 4 a bit confusing.
Many of the things in section 3 seemed to be actually existing mechanisms.

for instance:

3.4.  Traffic flow analysis

   [I-D.cc-v6ops-wlcg-flow-label-marking] describes a mechanism to mark
   packets of flows with information that identifies the application or
   user that is sending packets.

seems to be a different host to network signaling mechanism.

Section 4 seems to be more about what didn't work :-)

I just want to re-iterate section 4.1.1:
   *  Stateful devices can be an anonymous single points of failure in
  the network path.  For instance, stateful devices can break
  individual connections mid-flow due to state eviction.

The incumbent telco in Canada has long used ECMP in a stateful way that 
basically
always breaks ssh connections that last longer than a few minutes.  They only
fixed this when HTTP/1.1 became predominant.  Even sending keepalives did not
help.

"*  They are IPv6 specific, there is no equivalent support in IPv4."

seems like a feature for IPv6, not a problem :-)
We have many ways for embedding IPv4 inside IPv6, if needed.

Do you really need to make such a long argument for IPv6 Hop-by-Hop?

I think that this document is really a kind of merge Requirements and
Architecture.  Maybe it will also be a Roadmap to other documents?

--
Michael Richardson , Sandelman Software Works
 -= IPv6 IoT consulting =-  *I*LIKE*TRAINS*


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[Int-area] Fwd: New Version Notification for draft-herbert-host2netsig-00.txt

2023-10-04 Thread Tom Herbert
Hi,

This is an update to the host to network signaling draft. Note the
name is now properly host2netsig.

Other changes include:
* Add suggestion that signals could be in a namespace managed by IANA
and allow vendors to define their own signals
* Added a use case that host to network signals could be used as routing hints
* Describe motivation and requirement for removing host to network
signals from packets in flight, gave example of how this might be done
in Hop-by-Hop Options
* Added a requirement to define a common carrier protocol for host to
network signals
* Added a requirement to define a key distribution protocol if signals
are encrypted

Any feedback is appreciated!

Thanks,
Tom


-- Forwarded message -
From: 
Date: Wed, Oct 4, 2023 at 7:01 AM
Subject: New Version Notification for draft-herbert-host2netsig-00.txt
To: Tom Herbert 


A new version of Internet-Draft draft-herbert-host2netsig-00.txt has been
successfully submitted by Tom Herbert and posted to the
IETF repository.

Name: draft-herbert-host2netsig
Revision: 00
Title:Host to Network Signaling
Date: 2023-10-04
Group:Individual Submission
Pages:25
URL:  https://www.ietf.org/archive/id/draft-herbert-host2netsig-00.txt
Status:   https://datatracker.ietf.org/doc/draft-herbert-host2netsig/
HTMLized: https://datatracker.ietf.org/doc/html/draft-herbert-host2netsig


Abstract:

   This document discusses the motivations, use cases, and requirements
   for Host to Network Signaling.  In Host to Network Signaling, hosts
   annotate packets with information that is intended for consumption by
   on-path elements.  Signals may be used to request services on a per
   packet basis from on-path elements, to request admission into the
   network, or to provide diagnostics and tracing information.



The IETF Secretariat

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