[Sis-dtn] Keith's raw notes from telecon

[Keith Scott]

*SIS-DTN*

No updates on CMC poll from Tomaso.


Discussion from Joint IETF / CCSDS meeting (monthly / yesterday) -- Tomaso
wasn’t there

   - BPSec issue


   - Fragment ==> can’t apply security


   - BPSec ==> can’t fragment



   - Lars Baumgaertner


   - Everybody agreed on the problems


   - Not moving super-fast


   - Will go for a CCSDS orange book to allow fragmentation and security


   -


Ed: Possible solutions

   1. you *can* do bundle-in-bundle encapsulation of fragments, which is
   heavy-weight.


   1. A fragmentation-aware security context could be built, but also not
   optimal


   1. Orange book


Scott also working on an approach that should pose no additional overhead.


Felix: also discussed yesterday the option to include security on fragments.


Tomaso: Orange book path seems to be the way to go.  Need to create a
project.


*Conclusion: Tomaso to get an Orange book in process.*---

Wilmot: what’s the real use-case for fragmentation?  IPv6 does just
fragmentation at source, and we have managed networks so we know the MSS
for each link, no?

   - Yes but, if the path *might* change, what path MSS do you pick?  You
   would have to just always choose the smallest.


*Conclusion: we’d like to be able to fragment in the network.*---

Brian Sipos: IETF Status

   - ion scheme update is in auth-48


   - Rick Taylor proposed a unidirectional CLA targeted at e.g. DVB


   - In call-for-adoption in IETF


   - DTNMA drafts continue to be refined (really in examples, limits,
   boundaries -- the ‘meat’ of the documents are pretty set)


   - IETF had an issue w/ the use of YANG syntax for ADM encoding


   - Bundle-in-bundle encapsulation was updated


   - Time-variant routing WG requirements document is about last-call
   status (not quite, but nearly)


Simon: in the new ipn scheme is dtn:none no longer required?


Ed: 5.2 of the update talks about the null endpoint (as referenced from
9171). dtn:none, ipn:0.0, and ipn:0.0.0 are all the null endpoint.


Alberto: Did testing on ISS with BIBE-CT


JW: Artemis is really excited about using the 3-tuple ipn scheme for their
mission.
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