I agree that we don't need a hardwired constant. However, the
6LowPAN-ND draft currently specifies a hop limit of 255 for multihop
messages. I think we should change the text to make it clear that the
hop limit should be set to the same value as a normal multihop message
(e.g. a UDP message) sent to the LBR.
Daniel.
Carsten Bormann wrote:
On Oct 13, 2010, at 14:30, Daniel Gavelle wrote:
These problems could be addressed by setting the hop limit to a more typical
value, e.g. 64, for the multi-hop messages.
Sounds good to me.
Multihop messages between 6LR and 6LBR definitely don't need the HL=255 trick,
so the nodes should be free to choose a hop limit that is appropriate for the
network they are in.
I don't think we want to hardwire a suggestion for the 'hop limit' value in the
draft (although a number around 64 sounds like a good implementation default).
Gruesse, Carsten
Regards,
Daniel.
--
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Daniel Gavelle, Software Team Leader
Low Power RF Solutions (formerly Jennic Ltd.)
NXP Semiconductors
Furnival Street, Sheffield, S1 4QT, UK
Tel: +44 114 281 2655
Fax: +44 114 281 2951
Comp Reg No: 3191371 - Registered In England
http://www.nxp.com http://www.jennic.com
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