3Com MSR 50 Series, Руководство по настройке

Страница: 81 / 2443

Displaying and Maintaining ATM and DSL Interfaces 81
Displaying and
Maintaining ATM and
DSL Interfaces
n
For those physical interfaces that are not connected to cables, shut down them
using the
shutdown command to avoid anomalies resulted from interference.
Troubleshooting
This section covers these topics:
■
“Troubleshooting ATM Interfaces” on page 81
■
“Troubleshooting DSL Interfaces” on page 82
Troubleshooting ATM
Interfaces
When diagnosing ATM interface problems, first test the interface with the ping
command or the extended ping command.
Set the interface operating
mode shdsl mode { co | cpe } Optional
CPE by default
Set the single-pair rate shdsl rate { auto | rate } Optional
The default is auto-negotiation
mode for the two-wire G.SHDSL
interface and 2.312 Mbps for the
single-pair interface rate of the
four-wire G.SHDSL interface
(four-wire G.SHDSL interface rate is
4.624 Mbps).
Set a target margin to the
SNR shdsl snr-margin [ current
current-margin-value ]
[ snext
snext-margin-value ]
Optional
By default, current-margin-value is
set to 2, and snext-margin-value is
set to 0.
Set the PSD mode shdsl psd { asymmetry |
symmetry }
Optional
The default is symmetry.
To do... Use the command... Remarks
To do... Use the command... Remarks
Display the configuration and
state of a specified or all ATM or
DSL interfaces display interface atm
[ interface - number ]
Available in any view
Display the actual configuration
of a DSL line display dsl configuration
interface atm
interface-number
Available in any view
Display the state information of
a DSL line display dsl status interface
atm
interface - number
Available in any view
Display DSL version information
and available capabilities display dsl version interface
atm
interface - number
Available in any view
Display the configuration and
state about a specified or all IMA
group interfaces display interface ima-group
[ group-interfacenumber ]
Available in any view
Display the detailed information
about a specified IMA group
interface display status interface ima
group-number
Available in any view
Clear the statistics about all
PVCs on the specified ATM
interface reset atm interface [ atm
interface-number ]
Available in user view