Perešíni, Peter and Kuźniar, Maciej and Vasić, Nedeljko and Canini, Marco and Kostic, Dejan
OF.CPP: Consistent Packet Processing for OpenFlow.
In: The 2nd ACM SIGCOMM Workshop on Hot Topics in Software Defined Networking (ACM / SIGCOMM HotSDN 2013), 16 August 2013, Hong Kong, China.
This paper demonstrates a new class of bugs that is likely
to occur in enterprise OpenFlow deployments. In particular, step-by-step, reactive establishment of paths can cause
network-wide inconsistencies or performance- and space-
related inefficiencies. The cause for this behavior is inconsistent packet processing: as the packets travel through the network they do not encounter consistent state at the Open-Flow controller. To mitigate this problem, we propose to use transactional semantics at the controller to achieve consistent packet processing. We detail the challenges in achieving this goal (including the inability to directly apply database techniques), as well as a potentially promising approach. In particular, we envision the use of multi-commit transactions that could provide the necessary serialization and isolation properties without excessively reducing network performance.
Conference or Workshop Papers
||Software-Defined Networking, Consistency, Multi-commit transactions, ACID
||21 Nov 2013 13:18
||02 Dec 2014 12:18
Actions (login required)