D-Link DGS-1520-28MP Product Manual 1 - Page 43

Appendix C - ERPS Information

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DGS-1520 Series Gigabit Ethernet Smart Managed Switch Hardware Installation Guide Appendix C - ERPS Information Only hardware-based ERPS supports the Fast Link Drop Interrupt feature with a recovery time of 50 milliseconds in a 16-node ring. The distance must be less than 1200 kilometers. Model Name DGS-1520-28 ERPS Hardware-based Software-based Port 1 to 8 V Port 9 to 26 V Port 27 to 28 V Model Name DGS-1520-28MP ERPS Hardware-based Software-based Port 1 to 4 V Port 5 to 26 V Port 27 to 28 V Model Name DGS-1520-52 ERPS Hardware-based Software-based Port 1 to 8 V Port 9 to 24 V Port 25 to 32 Port 33 to 50 Port 51 to 52 V V V Model Name DGS-1520-52MP ERPS Hardware-based Software-based Port 1 to 8 V Port 9 to 24 V Port 25 to 28 Port 29 to 50 Port 51 to 52 V V V 38

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DGS-1520 Series Gigabit Ethernet Smart Managed Switch Hardware Installation Guide
38
Appendix C - ERPS Information
Only hardware-based ERPS supports the Fast Link Drop Interrupt feature with a recovery time of 50 milliseconds in a
16-node ring. The distance must be less than 1200 kilometers.
Model Name
ERPS
Port 1 to 8
Port 9 to 26
Port 27 to 28
DGS-1520-28
Hardware-based
V
V
Software-based
V
Model Name
ERPS
Port 1 to 4
Port 5 to 26
Port 27 to 28
DGS-1520-28MP
Hardware-based
V
V
Software-based
V
Model Name
ERPS
Port 1 to 8
Port 9 to 24
Port 25 to 32
Port 33 to 50
Port 51 to 52
DGS-1520-52
Hardware-based
V
V
V
Software-based
V
V
Model Name
ERPS
Port 1 to 8
Port 9 to 24
Port 25 to 28
Port 29 to 50
Port 51 to 52
DGS-1520-52MP
Hardware-based
V
V
V
Software-based
V
V