Re: [dtn-interest] TCP/UDP Convergence Layer Protocols

Kurtis, I agreed to write an internet draft on the UDP convergence  
layers for the Bundle Protocol and LTP, at the last IETF.    
Unfortunately, other projects have made that a slow process.  We will  
have an informal draft for the DTNRG meeting next week, and will post  
a formal -00 draft shortly thereafter.   Fragmentation is one issue we  
want to reach consensus on, others include mandatory use of UDP  
checksums, a security section, and a few other small items.   Michael  
is correct in suggesting that this is going to be a small draft, but  
the handful of issues we have identified are worthwhile writing down.

On Nov 10, 2008, at 8:58 PM, Michael Demmer wrote:

> The TCP CL protocol is documented in an internet draft:
> http://tools.ietf.org/id/draft-irtf-dtnrg-tcp-clayer-02.txt
>
> The UDP CL has never been documented because there's really nothing
> there to document... it just takes bundles encoded using the bundle
> protocol and stuffs them into individual UDP datagrams. This means
> that the maximum bundle size that can be sent is 64K and there's no
> reliability or connection support to speak of.
>
> -m
>
> On Mon, Nov 10, 2008 at 5:51 PM, Kurtis Heimerl
> <kheimerl@eecs.berkeley.edu> wrote:
>> Michael was kind enough to have written most of the bundle sending
>> code, but I have begun the task of interfacing with the reference
>> implementation. Does anyone know where the TCP or UDP connection
>> protocols are documented? Some related projects reference something
>> called the "TCPCLA Protocol" which I can guess at, or reverse
>> engineer, but I'd prefer a more authoritative source if one existed.
>>
>> Thanks!
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Hans Kruse, Professor
J. Warren McClure School of Information and Telecommunication Systems
Adjunct Associate Professor of Electrical Engineering and Computer  
Science
292 Lindley Hall, Ohio University, Athens, OH, 45701
740-593-4891 voice, 740-593-4889 fax