Switch Management Guide

VDSL C OMMANDS
29-70
Example
This example shows that the UPBO mask used for all upstream traffic.
Related Commands
lre pbo-config (29-18)
show lre upbo
This command shows if upstream power backoff is enabled or disabled.
Syntax
show lre upbo [unit/port]
• unit - Stack unit. (Range: 1)
• port - Port number. (Range: 1-16)
Command Mode
Privileged Exec
Command Usage
• Use this command without the interface parameter to display the
UPBO status used for all VDSL ports on the switch, or with an
interface to display it used for a specific port.
• If UPBO is enabled by the lre upbo command (page 29-19), the
upstream power backoff PSD mask will be applied to the specified
ports based on configuration settings specified by the lre pbo-config
command (page 29-18) as described in ITU-T G.992.2.
• If UPBO is enabled, and a PBO mask has been defined, the transceiver
will use the PBO mask to control upstream power backoff. If UPBO
is enabled, but a PBO mask has not been configured, the specified
Console#show lre pbo-config
CO Rx PSD constants
K1[0] = 0, K1[1] = -60000, K1[2] = -60000
K1[3] = -60000, K1[4] = 0, K1[5] = 0
CO Tx PSD constants
K2[0] = 0, K2[1] = -11200, K2[2] = -7419
K2[3] = -7419, K2[4] = 0, K2[5] = 0
Console#