DES-7000/DES-7100 Layer 2 Switch User
’
s Guide
Using the Web-based Management Software
77
VDSL Loopback Test
The loopback test for VDSL ports is used like a Ping test to check connectivity. Connectivity is
checked for the Local loop or internal path, that is from the Switch CPU to the to the VDSL chip set for
the selected VDSL module. The Line loopback test is used to test connectivity from the VDSL module
port to the end user
’
s CPE.
Figure 6- 32. Local Loopback Test Screen
To perform a local loopback test, select the VDSL
Slot
number of the port(s) you want to test.Select
the
Type
of test you want to conduct, and type in the number of repetitions for the test. Click
Apply
to
initiate the test. A
Local
test tests connectivity from the CPU to the VDSL controller chip on the VDSL
module. A
Line
test checks connectivity to the CPE for the port(s). To see the results of a loopback
test, click the View LoopBack Test Results button. The corresponding CLI command for this function is
config vdsl_port_loopback_test
.
View LoopBack Test Results
The results of the VDSL Loopback test can be
viewed for all the ports on a single module. Results
are listed for each port. The information includes
the
State
of the test, the
Count Fail/Total
ratio of
the test packets sent and the
Type
of test.
To view loopback test result with CLI the command
is
show vdsl_loopback_test
.
Figure 6- 33. Loopback Test Results Screen
Summary of Contents for DES-7000 Series
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