Hi,
Here is my understanding...
- 1. If you're sending a LOWPAN_IPHC frame without 6LoRH, it'd be better
to use page-0 LOWPAN_IPHC, without paging dispatch, in case a receiver
is a legacy, non-6TiSCH, node.
- 2. Since a node may receive a page-1 LOWPAN_IPHC frame without 6LoRH,
it'd be bett
Simon, I understand your point now.
Carsten, I understand your proposal, but given the text of RFC8025, we did
not choose to omit the page switch byte.
On Wed, Jul 5, 2017 at 1:03 PM, Simon Duquennoy
wrote:
> That would make sense and save a byte in all cases but is this
> compliant with RFC 80
That would make sense and save a byte in all cases but is this
compliant with RFC 8025?"
"
Values of the Dispatch byte defined in [RFC4944] are considered as
belonging to the Page 0 parsing context, which is the default and
does not need to be signaled explicitly at the beginning of a 6LoWPA
Yes, examples-02 has the exact same thing: 0xf1 directly followed by IPHC.
If my understanding is correct, this is compliant but a waste of one byte.
On Wed, Jul 5, 2017 at 12:05 PM, Thomas Watteyne
wrote:
> Simon,
>
> Didn't look at details, but you look at examples-00. Could you please check
>
You indeed don’t need page 1 for IPHC.
You need to be on page 1 once you need 6LoRH.
(My proposal was to simply define 6TiSCH to start in page 1. No idea whether
that removes any ever-so-remote compatibility with 6LoWPAN or if there is any
other reason to start off in page 0.)
Grüße, Carsten
Simon,
Didn't look at details, but you look at examples-00. Could you please check
examples-02 and whether the issue is still there?
Thomas
On Wed, Jul 5, 2017 at 12:02 PM, Simon Duquennoy
wrote:
> In Thomas' example
> https://tools.ietf.org/html/draft-munoz-6tisch-examples-00#section-3.6.1
>
In Thomas' example
https://tools.ietf.org/html/draft-munoz-6tisch-examples-00#section-3.6.1
there is a page dispatch to page 1 (0xf1) followed by IPHC (no routing
header). In this case, couldn't one choose to elide the page dispatch
and directly include IPHC? Or is the IPHC different from a page 0
