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This chapter contains the following sections:
To enable Green-Ethernet Energy-Detect mode globally, use the green-ethernet energy-detect Global Configuration mode command. To disable this feature, use the no form of this command.
green-ethernet energy-detect
no green-ethernet energy-detect
This command has no arguments or keywords.
Disabled.
Global Configuration mode
switchxxxxxx(config)# green-ethernet energy-detect
Use the green-ethernet energy-detect Interface configuration mode command to enable Green Ethernet-Energy-Detect mode on a port. Use the no form of this command, to disable it on a port.
green-ethernet energy-detect
no green-ethernet energy-detect
This command has no arguments or keywords.
Disabled.
Interface (Ethernet) Configuration mode
Energy-Detect only works on copper ports. When a port is enabled for auto selection, copper/fiber Energy-Detect cannot work.
It takes the PHY ~5 seconds to fall into sleep mode when the link is lost after normal operation.
switchxxxxxx(config)# interface gi1/0/1
switchxxxxxx(config-if)# green-ethernet energy-detect
Use the green-ethernet short-reach Global Configuration mode command to enable Green-Ethernet Short-Reach mode globally. Use the no form of this command to disabled it.
green-ethernet short-reach
no green-ethernet short-reach
This command has no arguments or keywords.
Disabled.
Global Configuration mode
switchxxxxxx(config)# green-ethernet short-reach
Use the green-ethernet short-reach Interface Configuration mode command to enable green-ethernet short-reach mode on a port. Use the no form of this command to disable it on a port.
green-ethernet short-reach
no green-ethernet short-reach
This command has no arguments or keywords.
Disabled.
Interface (Ethernet) Configuration mode
The VCT length check can be performed only on a copper port operating at a speed of 1000 Mbps. If the media is not copper or the link speed is not 1000, Mbps Short-Reach mode is not applied.
When the interface is set to enhanced mode, after the VCT length check has completed and set the power to low, an active monitoring for errors is done continuously. In the case of errors crossing a certain threshold, the PHY will be reverted to long reach.
Note that EEE cannot be enabled if the Short-Reach mode is enabled.
switchxxxxxx(config)# interface gi1/0/1
switchxxxxxx(config-if)# green-ethernet short-reach
Use the green-ethernet power meter reset Privileged EXEC mode command to reset the power save meter.
green-ethernet power-meter reset
This command has no arguments or keywords.
None
Privileged EXEC mode
switchxxxxxx# green-ethernet power-meter reset
To display green-ethernet configuration and information, use the show green-ethernet Privileged EXEC mode command.
show green-ethernet [interface-id | detailed ]
interface-id—(Optional) Specifies an Ethernet port
detailed—(Optional) Displays information for non-present ports in addition to present ports.
Display for all ports. If detailed is not used, only present ports are displayed.
Privileged EXEC mode
The power savings displayed is relevant to the power saved by:
Port LEDs
Energy detect
Short reach
The EEE power saving is dynamic by nature since it is based on port utilization and is therefore not taken into consideration.
The following describes the reasons for non-operation displayed by this command.
If there are a several reasons, then only the highest priority reason is displayed.
|
Energy-Detect Non-Operational Reasons |
||
|---|---|---|
|
Priority |
Reason |
Description |
|
1 |
NP |
Port is not present |
|
2 |
LT |
Link Type is not supported (fiber, auto media select) |
|
3 |
LU |
Port Link is up – NA |
|
Short-Reach Non-Operational Reasons |
||
|---|---|---|
|
Priority |
Reason |
Description |
|
1 |
NP |
Port is not present |
|
2 |
LT |
Link Type is not supported (fiber) |
|
3 |
LS |
Link Speed Is not Supported (10mbps,100mbps) |
|
4 |
LL |
Link Length received from VCT test exceeds threshold |
|
6 |
LD |
Port Link is Down – NA |
switchxxxxxx# show green-ethernet
Energy-Detect mode: Enabled
Short-Reach mode: Disabled
Disable Port LEDs mode: Enabled
Power Savings: 24% (1.08W out of maximum 4.33W)
Cumulative Energy Saved: 33 [Watt*Hour]
* Estimated Annual Power saving: 300 [Watt*Hour]
* Annual estimate is based on the saving during the previous week
NA – information for previous week is not available
Short-Reach cable length threshold: 50m
Port Energy-Detect Short-Reach VCT Cable
Admin Oper Reason Admin Force Oper Reason Length
---- ----- ---- ------- ----- ----- ---- ------- ------
gi1/0/1 on on off off off
gi1/0/2 on off LU on off on < 50
gi1/0/3 on off LU off off off
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