Re: [dtn] [EXTERNAL] Re: IANA section on bpbis

"Burleigh, Scott C (US 312B)" <scott.c.burleigh@jpl.nasa.gov> Wed, 23 October 2019 22:35 UTC

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From: "Burleigh, Scott C (US 312B)" <scott.c.burleigh@jpl.nasa.gov>
To: Marc Blanchet <marc.blanchet@viagenie.ca>, Magnus Westerlund <magnus.westerlund@ericsson.com>
CC: "draft-ietf-dtn-bpbis@ietf.org" <draft-ietf-dtn-bpbis@ietf.org>, "dtn@ietf.org" <dtn@ietf.org>
Thread-Topic: [EXTERNAL] Re: [dtn] IANA section on bpbis
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Date: Wed, 23 Oct 2019 22:35:11 +0000
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Subject: Re: [dtn] [EXTERNAL] Re: IANA section on bpbis
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On re-reading these proposals for merging registries more closely, I realize that they actually constitute significant changes to the BPv7 protocol specification.  Notably, the proposal to merge the bit flag values for bundle processing control flags would require that each BPv7 primary block contain a 3-byte control flags field -- rather than a 2-byte field -- to accommodate 6 bits of BPv6 class of service indication that the WG has agreed not to include in the BP specification; we will be wasting 1 byte of every bundle to preserve bit flag position compatibility with RFC 5050.

Also the block numbers assigned to extension blocks are changed for compatibility with RFC 5050; not a huge deal, but this will temporarily break all existing implementations of BPv7.  (The other changes are less disruptive.)

I can certainly go ahead and make all these changes, but I want to confirm with the WG that this is what we want to do.

Scott

-----Original Message-----
From: Marc Blanchet <marc.blanchet@viagenie.ca>; 
Sent: Wednesday, October 23, 2019 4:45 AM
To: Magnus Westerlund <magnus.westerlund@ericsson.com>;; Burleigh, Scott C (US 312B) <scott.c.burleigh@jpl.nasa.gov>;
Cc: draft-ietf-dtn-bpbis@ietf.org; dtn@ietf.org
Subject: [EXTERNAL] Re: [dtn] IANA section on bpbis

Magnus and Scott,
  all fine, please proceed!

  Scott, please make sure to review not only the IANA Considerations section, but also the text in the referred sections so everything is in sync.

Marc.

On 23 Oct 2019, at 13:23, Magnus Westerlund wrote:
> Hi,
>
> I have reviewed your proposal Marc. I think most of it works but there 
> are  few things I do wonder over or think should be addressed.
>
>
> 10.6: This is a BP specific registry. As this encodes the URI schemes 
> into the
> protocol in a short form. This is not the same as the URI scheme 
> registry.
>
> Thus, I don't see how it can be skipped.
>
> But, maybe the name of the registry should be "Bundle Protocol URI 
> Scheme Type
> Registry".
>
> 10.7 I already responded seperately to Scott's question. But, I think 
> the WG do
> need to update the IANA Registration of the DTN URI scheme considering 
> that it
> is provisional and lacks a correct reference to its actual syntactical
> definition.
>
>
> Cheers
>
> Magnus Westerlund
>
>
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