Validating User Flows to Protect Software Defined Network Environments

Table 2

Limitations and problems of the state-of-the-art approaches.

State-of-the-art	Problems	Limitations
Peer support strategy	(i) Peer topology; (ii) Attacks target specific locations	(i) Peer support strategy is less effective; (ii) Single controller
Multiqueue SDN controller scheduling algorithm	(i) Separate queues for each switch; (ii) Requires effective maintenance system	(i) Single controller; (ii) Complex to manage requests from switches