Participatory Networking: An API for Application Control of SDNs

• SDN 41
• API 1
• abstraction 6
• QoS 1

• 3 Interfacing with Pane
  • 5.1 conflict resolution operators
  • 6.2 fault tolerance and resilience
• reference

http://cs.brown.edu/~rfonseca/pubs/sigcomm13.pdf

work around the network rather than with the network: video conferencing applications constantly probe network bandwidth 6, overlay networks are used to re-route traffic6, network paths are reactively reconfigured based on inferences1, and humans are required to throttle heavy network loads in response to planned or unplanned shifts in traffic matrix.

contribute API … implemented by an OpenFlow controller that

• delegates read and write authority from the network’s administrators to end users, …, a next layer atop current SDN stacks
• design addresses: (1) safely decompose control and visibility of the network; (2) resolve conflicts between untrusted users and across requests, while maintaining baseline levels of fairness and security

algorithms for consolidating hierarchical policies16: new algorithm reducing complexity from exponential to polynomial

3 Interfacing with Pane

Requests

• access control: allow, deny
• guaranteed minimum bandwidth: reserve privilege … guaranteed minimum bandwidth between two hosts
• path control: waypoint, avoid
• rate-limits: results in matching traffic being routed through ports with established rate limiter

5.1 conflict resolution operators

independent logic: +D between requests within the same share; +P between parent and child share; +S between sibling share

6.2 fault tolerance and resilience

reference

• 6 D.Bonfiglio,M.Mellia,M.Meo,andD.Rossi.Detailed analysis of skype traffic. IEEE Trans. on Multimedia, 2009.

• 1 M.Al-Fares,S.Radhakrishnan,B.Raghavan,N.Huang,and A. Vahdat. Hedera: Dynamic flow scheduling for data center networks. In NSDI10.

• 16 A.D.Ferguson, A.Guha,C.Liang,R.Fonseca,and S. Krishnamurthi. Hierarchical Policies for Software Defined Networks. In HotSDN 12. This paper has largely been superceded by the SIGCOMM 2013 conference version. Please refer to that instead.