Displaying And Maintaining Atm And Dsl Interfaces; Troubleshooting; Troubleshooting Atm Interfaces; This Section Covers These Topics - 3Com MSR 50 Series Configuration Manual

Displaying and
Maintaining ATM and
DSL Interfaces

Troubleshooting

Troubleshooting ATM
Interfaces
To do...
Set the interface operating
mode
Set the single-pair rate
Set a target margin to the
SNR
Set the PSD mode
To do...
Display the configuration and
state of a specified or all ATM or
DSL interfaces
Display the actual configuration
of a DSL line
Display the state information of
a DSL line
Display DSL version information
and available capabilities
Display the configuration and
state about a specified or all IMA
group interfaces
Display the detailed information
about a specified IMA group
interface
Clear the statistics about all
PVCs on the specified ATM
interface
n
For those physical interfaces that are not connected to cables, shut down them
using the shutdown command to avoid anomalies resulted from interference.

This section covers these topics:

"Troubleshooting ATM Interfaces" on page 81
■
"Troubleshooting DSL Interfaces" on page 82
■
When diagnosing ATM interface problems, first test the interface with the ping
command or the extended ping command.

Displaying and Maintaining ATM and DSL Interfaces

Use the command...
shdsl mode { co | cpe }
shdsl rate { auto | rate }
shdsl snr-margin [ current
current-margin-value ]
[ snext
snext-margin-value ]
shdsl psd { asymmetry |
symmetry }
Use the command...
display interface atm
[ interface-number ]
display dsl configuration
interface atm interface-number
display dsl status interface
atm interface-number
display dsl version interface
atm interface-number
display interface ima-group
[ group-interfacenumber ]
display status interface ima
group-number
reset atm interface [ atm
interface-number ]
Remarks
Optional
CPE by default
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).
Optional
By default, current-margin-value is
set to 2, and snext-margin-value is
set to 0.
Optional
The default is symmetry.
Remarks
Available in any view
Available in any view
Available in any view
Available in any view
Available in any view
Available in any view
Available in user view
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