Energy Efficient Ethernet (EEE)

Use the EEE feature as a remedy to address PoE budget limitations and reduce power consumption across your access points and switches. But be aware that EEE can introduce latency and jitter, especially in real-time or low-latency applications. In these scenarios, you may want to disable EEE on AP uplinks and switch ports if you run real-time applications (VoIP, video conferencing, gaming) or you observe unexplained jitter or latency spikes.

Using the RUCKUS AP CLI, you can enable or disable the EEE feature on one or both Ethernet ports of an AP.

The EEE feature is disabled by default. To enable EEE on an AP enter the set eee command, specifying the Ethernet port and using the enable or disable option, respectively.

To view the status of EEE on an AP CLI, enter the get eee command.

The following shows examples of executing the set eee and get eee commands for an AP:

Please login: admin
password :
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** Ruckus R760 Multimedia Hotzone Wireless AP: 352202007605

rkscli: get eee

Interface  EEE
-----------------
eth0       Disabled
eth1       Disabled
OK
rkscli:
rkscli: set eee eth1 enable
OK
rkscli:
rkscli: get eee

Interface  EEE
-----------------
eth0       Disabled
eth1       Enabled
OK
rkscli: set eee eth0 enable
OK
rkscli: get eee

Interface  EEE
-----------------
eth0       Enabled
eth1       Enabled
OK
rkscli:

By default, the EEE feature is disabled in the RUCKUS ICX switch regardless of the switch model. Using the RUCKUS ICX Switch CLI, you can enable or disable the EEE feature on the switch either at the global configuration level or at the port level. In Global Configuration mode, you can enable or disable EEE on a RUCKUS ICX switch by entering the eee or no eee command, respectively.

To view the EEE status for all ports on the ICX switch when EEE is enabled, use the command show eee-statistics as shown in the following example:

 device# show eee-statistics
 Port         EEE-State       TXEventCount       TXDuration        RXEventCount        RXDuration
 1/1/1         Enable              0                0                   0                  0
 1/1/2         Enable              0                0                   0                  0
 1/1/3         Enable              17            2551234               16               2561886
 1/1/4         Enable              17            2545628               16               50953524
 1/1/5         Enable              2             2550749                2               50952549
 1/1/6         Enable              1             2543935                1               2551760
 1/1/7         Enable              17            2549030               17               2550750
 1/1/8         Enable              2             419455                16               50952710

This command displays, for each Ethernet port on the ICX switch, the EEE state (enabled or disabled), and describes the EEE activity on the interface as follows:

• TXEventCount: Number of times the port has entered Low Power Idle (LPI) mode by transmitting an LPI signal.
• TXDuration: Total time the port has spent in LPI mode since the first transmission.
• RXEventCount: Number of LPI signals received by the port.
• RXDuration: Cumulative duration of received LPI activity.