System information

VDSL Commands
4-107
Command Usage
Use this command to disable the VDSL chipset transmitter of a VDSL port that is
not connected to a working CPE. In some unusual circumstances, the power
emitted by VDSL ports can affect other VDSL ports. It is recommended that ports
that are not wired to CPEs be shutdown in this way. Also use this command to
disable access to the switch from this port.
Example
The following example disables VDSL port 1.
Related Commands
shutdown (4-91)
efm rdl
Use the efm rdl interface configuration command to enable Remote Digital
Loopback (RDL) to disable use the no form of the command.
Syntax
efm rdl
no efm rdl
Default Setting
Off
Command Mode
Interface Configuration
Command Usage
Remote Digital Loopback (RDL) tests the link between the switch and the CPE
by sending out, and returning data through the CPE, over the VDSL link.
Example
The following example shows how to turn enable/disable RDL on VDSL port 1.
Console (config)#interface ethernet 1/1
Console(config-if)#efm shutdown
Console(config-if)#
Console (config)#interface ethernet 1/1
Console(config-if)#efm rdl
Console(config-if)#no efm rdl
Console(config-if)#