Distributed Controller Placement in Software-Defined Networks with Consistency and Interoperability Problems

Table 7

Comparison of resilience aware controller placement.

Ref	Reliability aspect			Metrics: path loss, failure rate, response time, latency, controller, reliability, loss, load	Problem formulation	Solution approach
	MCL	MC	MCP
[131]	—	—	√	Controller, reliability	LP	Min-cover
[131]	—	—	√	Controller, reliability	LP	Min-cover
[136]	—	—	√	Latency, reliability	ILP	GA
[140]	√	—	—	Path loss	ILP	Random brute and greedy
[141]	—	—	√	Response time	ILP	—
[142]	√	—	—		Analytical	Selection
[143]	√	—	—	Failure rate, path loss	MIL	—
[144]	√	—	—	Response time, failure rate	LP	Greedy
[145]	√	—	—		NA	GA
[146]	√	—	—	Failure rate	NA	Bully
[147]	—	√	—	Failure rate, latency, controller	NA	—
[148]	—	√	—	Latency	NA	—
[150]	—	√	—	Failure rate, latency	Analytical	Mathematical
[152]	—	√	—	Failure rate, latency	MILP	SA
[112]	—	√	—	Latency, controller	ILP	—
[153]	—	√	—	Failure rate, controller and load	NA	Graph theory
[154]	—	√	—	Latency	NA	MOO, KnEA
[155]	—	√	—	Response time	NA	K-median
[156]	—	√	—	Failure rate, load balance	NA	PAM-B, NSGAII
[157]	—	—	√	Latency, loss	Analytical	K-critical
[151]	√	—	—	Failure rate, latency	Analytical	Mathematical
[158]	—	√	—	Latency	Fuzzy integral	AHP&, B-PSO

Minimizing control links, multiple controller: MC, multiple control path: MCP.