Table 2.

Comparison of mobile network architectures. GTP-U, GPRS Tunneling Protocol User plane.

	EPC Architecture	Standard OpenFlow	Proposed Architecture
Forwarding response time	Immediate	Intermediate	Immediate
Traffic engineering possibilities	Good	Very good	Very good
GTP-U requirement	Required	Required	Not required
Traffic detection flexibility	Good	Good	Very good
Specific treatment for QoS traffic	Intermediate	High	High
Controller processing requirement	N/A	very High	Intermediate