IRTF Open Meeting @ IETF-97
Seoul, South Korea
Monday, November 14, 2016 (KST)
15:50-17:50 Monday Afternoon session II

State of the IRTF
  Lars Eggert
  10 min

Applied Networking Research Prize (ANRP) Award Talks
  2x 40 min

  *** Olivier Tilmans *** for the Fibbing architecture that enables
  central control over distributed routing:

     Stefano Vissicchio, Olivier Tilmans, Laurent Vanbever and
     Jennifer Rexford. Central Control Over Distributed Routing.
     Proc. ACM SIGCOMM, London, UK, August 2015.

Philip Matthews: first of all similar to segment routing, similar problems
similar solutions, investigate that. this approach works well for classic ISPs,
but newer ISPS uses L3 VPNs. Could you modify it?

A: We believe there are different uses cases for both. I believe of L3 VPNS is
depending on LVP.

Philip Matthews: Still you still would watch your influence how things go
between L3 vpns instances, that could be different between types of traffic. If
you do that to affect one, you...

A: *will complete after*

Philip Matthews: Talking about changing the IGP cost, i don't think this is the
way to do it

A: I can answer to this off-line.

Allison Mankin: You mention that the security could be done using MD5 in OSPF,
are you allowing the possibility that other fake nodes could be inserted by
attackers?

A: We share the md5 keys between the controller and all the routers, so all the
messages we send are authenticated.


  *** Benjamin Hesmans *** for enabling applications to control how
  Multipath TCP transfers data:

     Benjamin Hesmans, Gregory Detal, Sebastien Barre, Raphael
     Bauduin and Olivier Bonaventure. SMAPP: Towards Smart Multipath
     TCP-enabled APPlications. Proc. ACM CoNEXT, Heidelberg, Germany,
     December 2015.


Q: Do you plan to extend the API to be more high level?

A: Yes, but it's very hard to know what the application wants, so we started from
the bottom, but we will do it.

Lars Eggert: ...

A: One of the use cases not presented was streaming, so if you want that you
need a minimal bandwidth, you can stay on one subflow if that subflow is enough.

Lars Eggert: In your example the client is always doing stuff. Could the server
also do something? What happens if interests don't align?

A: We will need a mechanism to allow the hosts to communicate their requirement.
We should solve the conflict before it's blocking.