Ds3 Loopbacks - 3Com 3C63100-AC-C - PathBuilder S600 Bridge/router Reference Manual

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HAPTER ATH UILDER

DS3 Loopbacks

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IAGNOSTICS AND ERFORMANCE
If you select a card type for which the PathBuilder S600 does not support
loopbacks, a message appears, informing you that no loopback feature is available
for that card type.
Figure 149 DS3 UNI Loopback Menu
4 Select [1] Set Loopback. A prompt listing the loopback choices for the selected
port appears at the bottom of the screen.
5 Enter the number corresponding to the type of loopback you want to configure.
The Loopback menu for the selected card type now lists the type of loopback you
have selected.
The following subsections describe the available loopbacks for each of the
PathBuilder S60000 interfaces.
The DS3 module supports the following loopbacks:
Local Card—Loops the transmit DS3output on the receive side. All cells coming
from the DS3 card are looped through the backplane and back to the DS3 card.
The transmitted data will continue to go on the output.
Network Line—Loops the DS3 received data back on the output side after the
digital data has been recovered.
Network Card—Loops the DS3 received cell payload back toward the line output.
Figure 150 illustrates the DS3 loopback options.
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ONITORING