Energy Saver

Table 1. Energy Saver product support

Feature

Product

Release introduced

Energy Saver

5320 Series

Fabric Engine 8.6

5420 Series

VOSS 8.4

Not supported on 5420F-24S-4XE

5520 Series

VOSS 8.2.5

Not supported on 5520-24X or 5520-48SE

Supported on fixed ports only.

5720 Series

Fabric Engine 8.7

7520 Series

Fabric Engine 8.10

Supported on 7520-48XT-6C

7720 Series

Not Supported

VSP 4900 Series

VOSS 8.1

Supported on VSP4900-48P and ports 1/1 to 1/12 onVSP4900-12MXU-12XE

VSP 7400 Series

Not Supported

To reduce direct power consumption by up to 40%, Energy Saver uses intelligent-switching capacity reduction in off-peak mode by controlling port link speeds and optionally powering off low priority Power over Ethernet (PoE) devices during off-peak periods. You can schedule Energy Saver to activate during multiple specific time periods. These time periods can be as short as one minute, or can last a week, a weekend, or individual days.

Note

Note

Important

Important

Interaction with PoE

Energy Saver can use Power over Ethernet (PoE) port-power priority levels to shut down low-priority PoE ports and provide power savings. The power consumption savings of each switch is determined by the number of ports with Energy Saver enabled, and by the power consumption of PoE ports that are powered off. If Energy Saver is disabled on a port, the port is not powered off, irrespective of the PoE configuration. Energy Saver turns off the power to a port only when PoE is enabled globally, the port Energy Saver is enabled, and the PoE priority for the port is configured to Low.

Configuration Fundamentals

To fully configure and use Energy Saver, you must first enable Energy Saver on ports, create a schedule, and then enable Energy Saver globally.

Alternatively, you can configure Energy Saver using the Efficiency Mode quick configuration method, which enables Energy Saver on all ports, creates a default schedule, and enables Energy Saver globally.

You can manually deactivate and reactivate Energy Saver at any time, without affecting the port configurations.

Note

Note

  • Energy Saver is supported only on copper ports that have auto-negotiation enabled.

  • Network Time Protocol (NTP) must be enabled and configured to use Energy Saver.