8. Troubleshooting
8-30 September 2002 9128-A2-GB20-80
DTE Loopback
The DTE external Loopback (DTLB) test loops the received signal on a DTE
interface back to the DTE without affecting the operation of the remaining ports.
Use this test for isolating problems on the DTE interface.
Main Menu
Test

Data Port Physical Tests

An attached device or test equipment must generate data to be looped back.
CAUTION:
This test may affect operation of frame relay PVCs assigned to the
selected port. Any IP data being sent while this test is active will be
disrupted.
98-16190
Network
Interface
DSX
Interface
DTE
Port 1
DTE
Port 2
All 1s
DTLB DTLB