Duo: Software Defined Intrusion Tolerant System Using Dual Cluster

Algorithm 1

Traffic classifier selection algorithm.

(1) def   calcRank (switch, tc):

(2) p = .5

(3) state = tc.state

(4) busy = tc.busyness

(5) near = relativeDistance (switch, tc)

(6) return state * (p * near + (1−p) * busy)

(7)

(8) def   selectTC (switch):

(9) ranks = list ()

(10) for tc in trafficClassifiers:

(11) rank = calcRank (switch, tc)

(12) ranks.append (rank)

(13)

(14) ranks = sorted (ranks, descendingOrder=True)

(15) return ranks