Diagnostic Ldm Test Command; Diagnostic Loopback F5 Command; Table 135 Diagnostic Commands - ZyXEL Communications MSC1000G User Manual

The command then displays the results of the ADSL port line diagnostics.
ras> diagnostic ldm show 5-4 result
port 5-4:
attainable bit rate(kpbs):
loop attenuation(dB)
signal attenuation(dB)
snr margin(dB)
actual tx power fe(dBm)

21.2.2 diagnostic ldm test Command

Syntax:
diagnostic ldm test <slot-port>
This command has the system perform line diagnostics on the specified port and displays the
results. The ADSL port must be set to ADSL2 or ADSL2+ ADSL operational mode and have
a connection. Use the line diagnostics results to analyze problems with the physical ADSL
line. It takes about one minute for the line diagnostics to finish.
The following example performs line diagnostics on DSL port 4 of the line card in slot 5. The
command then displays the results of the ADSL port line diagnostics.
ras> diagnostic ldm test 7-5

21.2.3 diagnostic loopback f5 Command

Syntax:
diagnostic loopback f5 <slot-port-vpi/vci>
This command has the system perform an OAMF5 loopback test on the specified virtual
circuit. An Operational, Administration and Maintenance Function 5 (OAMF5) test is used to
test the connection between two DSL devices. First, the DSL devices establish a virtual circuit.
Then the local device sends an ATM F5 cell to be returned by the remote DSL device (both
DSL devices must support ATM F5 in order to use this test).
The following example has the system perform a local loopback test on a virtual circuit on
DSL port 5 of the line card in slot 7. The virtual circuit is identified by VPI 0 and VCI 33.
ras> diagnostic loopback f5 7-5-0/33
line 1 oam loopback success!
Chapter 21 diagnostic Commands
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