SDN-Enabled Communication Network Framework for Energy Internet

Table 1

Communication latency requirements for electric substation automation [10].

Information types	Internal substation	External substation
Protecting information	4 ms	8–12 ms
Monitoring and control information	16 ms	1 s
Operations and maintenance information	1 s	10 s
Text strings	2 s	10 s
Processed data files	10 s	30 s
Program files	1 min	10 min
Image files	10 s	1 min
Audio and video data streams	1 s	1 s