ZyXEL Communications 2002 Series Guide de l'utilisateur Page 120

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VES-1000 Series Ethernet Switch
12-6 VDSL-Related Commands
Table 12-5 VDSL Channel Status Counters
FIELD DESCRIPTION
MSE This is the Minimum Square Error. The minimum mean-square error (also known as
MMSE) performance measure is a popular metric for optimal signal processing.
RS_ERR This is the count of bit errors detected and corrected by Reed-Solomon code. Reed-
Solomon codes are block-based error correcting codes and are used to correct errors
in many systems.
Power Parameters:
MIN_PSD This is the mimimum Power Spectrum Density (power divided by bandwidth).
MAX_PSD This is the maximum Power Spectrum Density (power divided by bandwidth).
TXPWR This field displays transmission power information in hexadecimal format.
POCO Port Output Control registers provide the control bit information.
PSD This is the Power Spectrum Density (power divided by bandwidth).
12.2.7 VDSL Version Command
vdsl ver
Use this command to see the VDSL driver version, date it was created and VDSL patch version.
Figure 12-4 VDSL Driver Version
12.2.8 Clear VDSL Channel Status
vdsl clear chan-id
This command clears the status counters of the specific VDSL channel.
12.2.9 VDSL Show Command
ves-100> vdsl ver
vdsl driver version = 0.54
vdsl driver date = 12/04/2001
vdsl patch version = 0x50
ves-100>
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