ZyXEL Communications MSC1000G Series, Руководство пользователя

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Chapter 32 show Commands
Management Switch Card User’s Guide
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32.3.24 show linerate Command
Syntax:
show linerate < slot-port >
This command displays an ADSL port's line rate information.
The following example displays the line operating values for ADSL port 5 on the line card in slot 7.
The following table describes labels in this example.
32.3.25 show linestat Command
Syntax:
show linestat < slot-port > [data|pots]
This command displays a port's link status.
32.3.26 Tshow mac Command
Syntax:
show mac [enet1|enet2|t1|< mac >|< slot >|< slot-port >|{vid < vid1 >[-< vid2 >]
ras> show linerate 7-5
slot-port=7-5, DSL line rate
link = link_up
upstream downstream
---------- ----------
payload rate (kbps)= 999 23995
actual rate (kbps)= 1008 24004
attainable rate(kbps)= 1013 24634
noise margin (dB)= 18.8 12.5
attenuation (dB)= 0.8 0.0
Table 378
Line Rate Information
LABEL DESCRIPTION
The rate fields display the transmission rates. “Line Down” indicates that the ADSL port is not connected to a
subscriber.
up/down stream
Upstream refers to traffic coming into the DSL line card from the subscriber's ADSL
modem or router. Downstream refers to traffic going out from the DSL line card to the
subscriber's ADSL modem or router.
payload rate
These are the data (the payload data without transport layer protocol headers and traffic)
transfer rates (in Kbps) at which the port is receiving and sending data.
actual rate
These are the data transfer rates (in Kbps) at which the port is receiving and sending
data.
attainable rate
These are the highest theoretically possible transfer rates (in Kbps) at which the port
could receive and send data.
noise margin
These are the DSL line’s noise margins. Measured in decibels (dB).
attenuation
These are the reductions in amplitude of the DSL signals. Measured in decibels (dB).