HP J9979A User Manual

10-2
Green Features
Green Features Configuration
Table 10-1.Green Features Configuration Fields
Click Apply to save any changes for the current boot session. The changes take effect immediately.
Field Description
Port Energy Saving Configuration
Auto Port Power-
Down
When this feature is enabled and the port link is down, the PHY automatically goes down. The
port wakes up when it senses activity on the link. This features enables saving power consumption
when no link partner is present. This feature is disabled by default.
Low-Power Idle
(EEE)
EEE (Energy Efficient Ethernet) is designed to save power by turning off network ports that are
not passing traffic. EEE works for ports in auto-negotiation mode, where the port is negotiated to
either 100 Mbps Full Duplex or 1 Gbps (1000 Mbps) Full Duplex. This feature is disabled by
default.

HP J9979A Specifications

General

Model	J9979A
Category	Switch
Layer	Layer 2
Jumbo Frame Support	Yes
Input Voltage	100 - 240 VAC
Uplink Ports	4
Management	Web, SNMP
Dimensions	44.25 x 30.0 x 4.4 cm
Weight	4.4 kg
Power Supply	Internal
Form Factor	Rack-mountable
Operating Temperature	0°C to 45°C
Operating Humidity	15% to 95% (non-condensing)
Ports	24 x 10/100/1000 ports