ZyXEL Communications IES-1248-51 Guía de usuario descargar pdf (Pagina 486)

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Chapter 64 ADSL Commands

IES-1248-51V User’s Guide

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64.4 Statistics ADSL Commands

Use these commands to display ADSL port statistics.

Table 186 ADSL Statistics Commands

COMMAND DESCRIPTION P

statistics adsl show [portlist] Displays ADSL port connection statistics including the

status (V for enabled, - for disabled), ADSL operational

mode, upstream and downstream maximum rates, up

time and the number of errored seconds.

M/L

statistics adsl linedata

Shows the line bit allocation of an ADSL port.

Discrete Multi-Tone (DMT) modulation divides up a

line’s bandwidth into tones. This command displays the

number of bits transmitted for each tone. This can be

used to determine the quality of the connection,

whether a given sub-carrier loop has sufficient margins

to support ADSL transmission rates, and possibly to

determine whether certain specific types of

interference or line attenuation exist. See the ITU-T

G.992.1 recommendation for more information on

DMT.

The better (or shorter) the line, the higher the number

of bits transmitted for a DMT tone. The maximum

number of bits that can be transmitted per DMT tone is

15.

“upstream carrier load” displays the number of bits

transmitted per DMT tone for the upstream channel

(from the subscriber’s DSL modem or router to the

IES-1248-51V).

“downstream carrier load” displays the number of bits

received per DMT tone for the downstream channel

(from the IES-1248-51V to the subscriber’s DSL

modem or router).

The bit allocation contents are only valid when the link

is up.

M/L

statistics adsl lineinfo

Shows the line operating values of an ADSL port. M/L

statistics adsl lineperf

Shows the line performance counters of an ADSL port. M/L

statistics adsl linerate

Displays the line rate for the specified port(s). M/L

statistics adsl 15mperf

<portlist>[count <0~96>]

Displays line performance statistics for the current and

previous 15-minute periods.

count <0~96>: Specify for which 15-minute interval

(0~96) you want to display performance statistics. 0 is

the current 15 minutes.

M/L

statistics adsl 1dayperf

Displays line performance statistics for the current and

previous 24 hours.

M/L

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