Troubleshooting
DTE Loopback
6-26
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.
An attached device or test equipment must generate data to be looped back.
DSX
All 1s
Interface
DTLB
DTLB
DTE
DTE
Port 2
Port 1
This test may affect the operation of the frame relay PVCs assigned to
the selected port. Any IP data being sent while this test is active will be
disrupted.
March 2000
Network
Interface
98-16190
9124-A2-GB20-00