User's Manual

Chapter 6 DSL Testing
Specifying test settings
SmartClass TPS User’s Guide
54 22035456, Rev 001 May 2014
3 Select Transport Mode and then choose ATM, PTM, or Auto. Auto will query the DSLAM for
the transport mode.
4 Select SOS Mode and then specify whether to use SOS mode.
This setting is only applicable to VDSL.
When enabled, SOS mode ensures that a connection is maintained on the DSL link regardless
of suddenly degraded conditions (such as large increases in noise or a large degradation in
SNR) and allows the application to maintain at least a minimal connection during a period of
degradation. SOS mode can prevent retraining, allowing a more graceful return to normal
operation when the period of degradation has ended.
5 Press Cancel to return to the Group Summary results menu.
Specifying network settings
If the modem operation mode is Bridge (which is the default mode), the Network Setup is available.
If using Router mode, specify the WAN Setup.
To specify Network settings
1 From the ADSL or ADSL/VDSL menu, select Network.
2 Select Network Setup and then specify the ATM Layer Setup. This selection is greyed out if
you specified PTM transport mode on the DSL setup. The following table describes the
settings.
3 Specify other network settings as described in “Specifying the network setup” on page 42.
The network settings are specified.
Specifying WAN settings
If the modem operation mode is Router, the WAN Setup is available. If using Bridge mode, specify
the Network Setup.
To specify WAN settings
1 From the ADSL/VDSL or Bonded menu, select Network, and then select WAN Setup.
CAUTION: FAULTY RESULTS
Any time the Network settings are changed, the network layer resets. If you
change these settings during a test, you may cause errors in the test. Only
change them before you begin a test.
Setting Description
WAN VPI / VCI Specifies the VPI and VCI for the customer-facing port
on the DSLAM.
Encapsulation Select LCC-SNAP or VC-MUX.
CAUTION: FAULTY RESULTS
Any time the Network settings are changed, the network layer resets. If you
change these settings during a test, you may cause errors in the test. Only
change them before you begin a test.