Testing
5-4
7110-A2-GB20-00
June 1997
Payload Loopback
Payload Loopback (PLB) loops the received signal on the network interface back
to the network. Framing CRCs and BPVs are corrected.
Procedure
To run a Payload loopback:
1. Position the cursor at the Start command next to Payload Loopback on the
Network Tests screen.
2. Press Enter.
3. The Start command is changed to Stop. If you want to manually stop the test,
verify that the cursor is positioned at the Stop command.
4. Press Enter. The duration of the test is displayed.
496-15076
CSU
DSU
Network
Interface
ALL 1s
PLB
DTE
Payload Loopback cannot be started when any other loopback or Send Pattern
test is already active on the network interface.