Subject: [core] IETF85: Adaptation Layer Fragmentation Indication (ALFI) on intarea agenda

From: Carsten Bormann <[email-masked]>
Date: Thu, 25 Oct 2012 10:11:46 +0200

One problem we have in 6LoWPAN networks is that the 6LoWPAN fragmentation is "transparent", i.e. there is no equivalent of Path MTU discovery that would enable applications to make informed decisions about the packet sizes they choose.
Since that problem is not specific to 6LoWPAN, and not even to IPv6, it is being discussed in the intarea working group.
(The specific proposal is currently focused on IPv6, however.)

If you care about this subject, below is a snippet from the current intarea agenda (which, of course, can change).

Grüße, Carsten

http://www.ietf.org/proceedings/85/agenda/agenda-85-intarea says:

> intarea WG Agenda 
> IETF 85
> Monday, November 5, 2012
> 1300-1500 Afternoon Session I
> 
> 1. Agenda Bashing, WG & Document Status (Chairs) 10 minutes
>    
> 2. Adaptation Layer Fragmentation Indication
>    Carsten Bormann 20 minutes
>    draft-bormann-intarea-alfi-01
> 
> Objective:
> 
> Present the draft that describes a mechanism by which an
> IPv6 adaptation layer can indicate the presence of
> fragmentation capability and can specify preferred packet
> sizes for the link type. The goal is to publicize the work
> and identify a suitable venue to continue this work.