Toward Systematic Detection and Resolution of Network Control Conflicts
Abstract
The problem of detecting and resolving control con
icts has
started to receive attention from the networking commu-
nity. Corybantic [16] is an example of recent work in this
area. We argue that it is too coarse grain in that it does
not model the combined operational objectives of multiple
controller functions. This paper proposes a ner grain ap-
proach where a network control function is represented as a
deterministic nite-state transducer. The machine runs on
inputs provided by an SDN controller and outputs instruc-
tions that update the network as needed to meet objectives.
Standard proof techniques and algorithms can be leveraged
to analyze properties of these machines. Speci cally, their
intersection describes precisely the stable operating region of
a network when the machines operate in parallel. The stable
region comprises conditions under which no control function
is in the process of updating the network.
Description
The article of record as published may be located at http://dx.doi.org/10.1145/2620728.2620745
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.Collections
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