Cisco Systems 4500 Determining EEE Capability, Enabling EEE, Determining EEE Status

10-23
Software Configuration Guide—Release 15.0(2)SG
OL-23818-01
Chapter 10 Environmental Monitoring and Power Management IEEE 802.3az Energy Efficient Ethernet
Determining EEE Capability
To determine whether a line card supports EEE, use the show interface capabilities module module
command, as follows:
Switch# show interface capabilities module 3
GigabitEthernet3/1
Model: WS-X4748-NGPOE+E-RJ-45
Type: 10/100/1000-TX
Speed: 10,100,1000,auto
Duplex: half,full,auto
Auto-MDIX: yes
EEE: yes ( 100-Tx and 1000-T auto mode )
Enabling EEE
To enable EEE on a given port, use the power efficient-ethernet auto command.
The following example shows how to enable EEE:
Switch# config t
Switch(config)# interface gigabitethernet 1/1
Switch(config-if)# power efficient-ethernet auto
Switch(config-if)# exit
Determining EEE Status
To determine EEE status use the show platform software interface interface status command:
The following example determines EEE status:
Switch(config)# show platform software interface g2/1 status
Switch Phyport Gi2/1 Software Status
EEE: Disabled
EEE status can have the following values:
EEE: N/A—The port is not capable of EEE.
EEE: Disabled—The port EEE is disabled.
EEE: Disagreed—The port EEE is not set because a remote link partner might be incompatible with
EEE; either it is not EEE capable, or it’s EEE setting is incompatible.
EEE: Operational—The port EEE is enabled and operating.
Command Purpose
Step 1 Switch# configure terminal Enters configuration mode.
Step 2 Switch(config)# interface interface Enters interface configuration mode and
specifies the port to be configured.
Step 3 Switch(config-if)# power efficient-ethernet auto Enables EEE.
Step 4 Switch(config-if)# exit Exits global configuration mode.