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VDSL Commands
4-109
efm pbo
This command enables and disables power back-off on the selected VDSL port.
Syntax
[no] efm pbo
Default Setting
Enabled
Command Mode
Interface Configuration
Command Usage
If PBO is enabled, the power of transmission from the port will automatically be
adjusted to ensure that the signal successfully reaches the receive port.
Example
The following example enables power back-off for port 1.
Related Commands
show controllers efm status (4-114)
show controllers ethernet-controller
Use this command to display the Ethernet link transmit and receive statistics for a
specific VDSL port, or for all the VDSL ports on the switch and the connected CPE.
Syntax
show controllers ethernet-controller interface-id
interface-id - ID of the VDSL port
Default Setting
None
Command Mode
Privileged EXEC
Command Usage
Using this command without specifying a VDSL port displays the Ethernet link
statistics of all ports on the switch and on the connected CPE devices. The
output shows the statistics collected by the VDSL chipset on the switch, and
the statistics collected by the VDSL chipset on the CPE.
onsole#config
Console(config)#interface ethernet 1/1
Console(config-if)#efm pbo
Console(config-if)#